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学生选课管理系统（Java语言期末前测试）

测试具体要求：

2.系统要求与功能设计

2.1 页面要求

（1）能够在Tomcat服务器中正确部署，并通过浏览器查看；

（2）网站页面整体风格统一；

（3）首页(登录页)要求实现不同用户登录后，进入的功能页不相同。

（4）教师功能页：有添加课程、修改个人信息、浏览选课学生信息三个模块。

（5）学生功能页：有修改个人信息、浏览课程信息、选课三个功能模块。

（5）管理员功能页：有添加教师信息、添加学生信息两个模块。

2.2功能要求：

（1）添加教师信息：管理员可以添加教师基本信息，教师基本信息包括：教师工号（八位数字组成，例如02000081）、教师姓名、教师性别、教师所在学院、职称（教授、副教授、讲师、助教）组成；

（2）添加学生信息：管理可以添加学生基本信息，学生基本信息包括学号（八位数字组成，例如20180052）、学生姓名、学生性别、所在班级、所属专业组成；

（3）添加课程信息：教师登陆后，可以添加自己任职的课程基本信息，课程基本信息包括：课程编号（六位数字组成，例如050013），课程名称、选课人数、任课教师（任课教师不需录入，那位教师填写课程信息，那位教师就是任课教师）；

（4）修改个人信息：教师或学生登陆后可以修改个人信息，但教师工号或学号不能修改，另外教师或学生只能修改自己的信息，无法看到或修改其他学生或教师的基本信息。

（5）浏览课程信息：学生登陆后可以看到所有课程的列表信息，点击课程名称可以查看课程的详细信息,包括已选课人数；点击教师名称可以查看教师的详细信息。

（6）选课：进入选课页面，课程信息列表显示所有选课人数未达到课程设置的选课人数上限，点击课程名称可以看到课程详细信息，点击课程详细信息页面的“选课”按钮，可以实现选课功能。

（7）浏览选课学生信息：教师进入该页面后，可以看到自己设置的课程信息列表，点击课程名称，可以看到，选择该课程的所有学生基本信息列表。

（8）登陆功能：管理员、教师、学生登陆后可以看到不同的功能页面，教师或学生登陆后只能看到自己的相关信息，不同教师、不同学生登陆后无法查看其他人的信息。（要求至少创建两个教师用户、十个学生用户演示选课过程）

3数据库设计：

要求实现课程基本信息表、教师基本信息表、学生基本信息表、选课基本信息表。（提示：选课基本信息包括课程编号、教师编号、学号等基本信息）

4、WEB发布：

要求可以实现在浏览器直接访问系统。

如有错误敬请指正

系统简单解释：

1.创建学生或教师的时候id和初始密码一致

2.在程序中使用cookie 来传递参数（emmm 目前只是简单运用）

3.对于身份的判定是在每一个账号后边加status 状态判定

1 为学生 2为教师 3 为管理员

4.对于选课存储时储存在了学生表的class 中，存储类型为课程编号，用String类型进行拼接，查询时进行模糊查询

5.对于选课的人数限制没有完善。

使用jar 包：

数据库建表如下：

代码实现：

com.Bean 类

 1 package com.Bean;
 2 
 3 public class classes {
 4     private String name;
 5     private String teacher;
 6     private String pid;
 7     private String number;
 8     private String count;
 9 
10     public classes(String name, String teacher, String pid, String number) {
11         super();
12         this.name = name;
13         this.teacher = teacher;
14         this.pid = pid;
15         this.number = number;
16     }
17     public classes(String name, String teacher, String pid, String number, String count) {
18         super();
19         this.name = name;
20         this.teacher = teacher;
21         this.pid = pid;
22         this.number = number;
23         this.count = count;
24     }
25     public String getCount() {
26         return count;
27     }
28     public void setCount(String count) {
29         this.count = count;
30     }
31     public String getName() {
32         return name;
33     }
34     public String getNumber() {
35         return number;
36     }
37     public void setNumber(String number) {
38         this.number = number;
39     }
40     public void setName(String name) {
41         this.name = name;
42     }
43     public String getTeacher() {
44         return teacher;
45     }
46     public void setTeacher(String teacher) {
47         this.teacher = teacher;
48     }
49     public String getPid() {
50         return pid;
51     }
52     public void setPid(String pid) {
53         this.pid = pid;
54     }
55 
56 }

 1 package com.Bean;
 2 
 3 public class premission {
 4     
 5     private String name;
 6     private String pwd;
 7     
 8     public String getName() {
 9         return name;
10     }
11     public void setName(String name) {
12         this.name = name;
13     }
14     public String getPwd() {
15         return pwd;
16     }
17     public void setPwd(String pwd) {
18         this.pwd = pwd;
19     }
20     
21     
22 
23 }

 1 package com.Bean;
 2 
 3 public class student {
 4     private String id;
 5     private String name;
 6     private String sex;
 7     private String classes;
 8     private String zhuanye;
 9     public String getId() {
10         return id;
11     }
12     public student(String id, String name, String sex, String classes, String zhuanye) {
13         super();
14         this.id = id;
15         this.name = name;
16         this.sex = sex;
17         this.classes = classes;
18         this.zhuanye = zhuanye;
19     }
20     public void setId(String id) {
21         this.id = id;
22     }
23     public String getName() {
24         return name;
25     }
26     public void setName(String name) {
27         this.name = name;
28     }
29     public String getSex() {
30         return sex;
31     }
32     public void setSex(String sex) {
33         this.sex = sex;
34     }
35     public String getClasses() {
36         return classes;
37     }
38     public void setClasses(String classes) {
39         this.classes = classes;
40     }
41     public String getZhuanye() {
42         return zhuanye;
43     }
44     public void setZhuanye(String zhuanye) {
45         this.zhuanye = zhuanye;
46     }
47     
48 
49 }

 1 package com.Bean;
 2 
 3 public class teacher {
 4     
 5     private String id;
 6     private String name;
 7     private String sex;
 8     private String xueyuan;
 9     private String zhicheng;
10     public String getId() {
11         return id;
12     }
13     public void setId(String id) {
14         this.id = id;
15     }
16     public String getName() {
17         return name;
18     }
19     public void setName(String name) {
20         this.name = name;
21     }
22     public String getSex() {
23         return sex;
24     }
25     public void setSex(String sex) {
26         this.sex = sex;
27     }
28     public String getXueyuan() {
29         return xueyuan;
30     }
31     public void setXueyuan(String xueyuan) {
32         this.xueyuan = xueyuan;
33     }
34     public String getZhicheng() {
35         return zhicheng;
36     }
37     public void setZhicheng(String zhicheng) {
38         this.zhicheng = zhicheng;
39     }
40     public teacher(String id, String name, String sex, String xueyuan, String zhicheng) {
41         super();
42         this.id = id;
43         this.name = name;
44         this.sex = sex;
45         this.xueyuan = xueyuan;
46         this.zhicheng = zhicheng;
47     }
48     
49 
50 }

com.DBUtil类：基础链接

  1 package com.DBUtil;
  2 /**
  3  * 测试时主要要导入jar 
  4  */
  5 
  6 import java.beans.Statement;
  7 import java.sql.Connection;
  8 import java.sql.DriverManager;
  9 import java.sql.PreparedStatement;
 10 import java.sql.ResultSet;
 11 import java.sql.SQLException;
 12 
 13 /**
 14  * 建立数据库连接
 15  * @author cuixingyu
 16  *
 17  */
 18 public class DBUtil {
 19     // 连接数据库 url路径和用户名 密码
 20     public static String db_url="jdbc:mysql://localhost:3306/db_database01?serverTimezone=UTC&characterEncoding=UTF-8&useSSL=false";
 21     public static String db_user="root";
 22     public static String db_password="101032";
 23     public static Connection getConn()  {
 24         Connection conn=null;
 25         try {
 26             // 数据库驱动加载
 27             Class.forName("com.mysql.cj.jdbc.Driver");
 28             try {
 29                 //链接数据库
 30                 conn=DriverManager.getConnection(db_url, db_user, db_password);
 31             } catch (SQLException e) {
 32                 // TODO Auto-generated catch block
 33                 e.printStackTrace();
 34             }
 35             System.out.println("驱动链接加载成功！");
 36         } catch (ClassNotFoundException e) {
 37             // TODO Auto-generated catch block
 38             e.printStackTrace();
 39         }
 40         //返回链接
 41         return conn;
 42         
 43     }
 44     
 45     //关闭函数
 46     public static void close(Statement state,Connection conn) {
 47         //只有状态和连接时，先关闭状态
 48         if(state!=null) {
 49             try {
 50                 ((Connection) state).close();
 51             } catch (SQLException e) {
 52                 // TODO Auto-generated catch block
 53                 e.printStackTrace();
 54             }
 55 
 56             
 57         }
 58         if(conn!=null) {
 59             try {
 60                 conn.close();
 61             } catch (SQLException e) {
 62                 // TODO Auto-generated catch block
 63                 e.printStackTrace();
 64             }
 65         }
 66     }
 67     //关闭函数
 68     public static void close(PreparedStatement state,Connection conn) {
 69         if(state!=null) {
 70             try {
 71                 ((Connection) state).close();
 72             } catch (SQLException e) {
 73                 // TODO Auto-generated catch block
 74                 e.printStackTrace();
 75             }
 76             
 77         }
 78         if(conn!=null) {
 79             try {
 80                 conn.close();
 81             } catch (SQLException e) {
 82                 // TODO Auto-generated catch block
 83                 e.printStackTrace();
 84             }
 85         }
 86     }
 87     
 88     public static void close(ResultSet rs,Statement state,Connection conn) {
 89         if(rs!=null) {
 90             try {
 91                 rs.close();
 92             } catch (SQLException e) {
 93                 // TODO Auto-generated catch block
 94                 e.printStackTrace();
 95             }
 96         }
 97         if(state!=null) {
 98             try {
 99                 ((Connection) state).close();
100             } catch (SQLException e) {
101                 // TODO Auto-generated catch block
102                 e.printStackTrace();
103             }
104         }
105         if(conn!=null) {
106             try {
107                 conn.close();
108             } catch (SQLException e) {
109                 // TODO Auto-generated catch block
110                 e.printStackTrace();
111             }
112         }
113     }
114 
115   //关闭函数 
116     public static void close(java.sql.Statement state, Connection conn) {
117         // TODO Auto-generated method stub
118         if(state!=null)
119         {
120             try {
121                 state.close();
122             } catch (SQLException e) {
123                 // TODO Auto-generated catch block
124                 e.printStackTrace();
125             }
126         }
127         if(conn!=null) {
128             try {
129                 conn.close();
130             } catch (SQLException e) {
131                 // TODO Auto-generated catch block
132                 e.printStackTrace();
133             }
134         }
135     }
136     //测试主函数  利用Java运行来测试
137     @SuppressWarnings("static-access")
138     public static void main(String[] args) throws SQLException {
139         DBUtil dbu=new DBUtil();
140         dbu.getConn();
141     }
142 }

com.Dao 类

  1 package com.Dao;
  2 
  3 import java.sql.Connection;
  4 import java.sql.ResultSet;
  5 import java.sql.SQLException;
  6 import java.sql.Statement;
  7 import java.util.ArrayList;
  8 import java.util.List;
  9 
 10 import com.Bean.classes;
 11 import com.Bean.student;
 12 import com.Bean.teacher;
 13 import com.DBUtil.DBUtil;
 14 
 15 public class Dao {
 16         //获取登陆用户的身份信息
 17     public int login(String username, String password) {
 18         
 19         Connection conn = DBUtil.getConn();
 20         Statement state =null;
 21         ResultSet rs = null;
 22         int flag=0;
 23         String sql = "select * from login where name='"+username+"' and  pwd = '"+password+"'";
 24         try {
 25             state = conn.createStatement();
 26         } catch (SQLException e) {
 27             // TODO Auto-generated catch block
 28             e.printStackTrace();
 29         } 
 30         
 31         try {
 32             rs=state.executeQuery(sql);
 33         } catch (SQLException e) {
 34             // TODO Auto-generated catch block
 35             e.printStackTrace();
 36         }
 37         
 38          try {
 39             while(rs.next()) {
 40                 flag=rs.getInt("status");
 41              }
 42         } catch (SQLException e) {
 43             // TODO Auto-generated catch block
 44             e.printStackTrace();
 45         }
 46         return flag;
 47     }
 48     //在学生界面添加学生信息  --- 未读题
 49     public void addstudent(String id, String name, String sex, String classes, String zhuanye) throws Exception {
 50         Connection conn = DBUtil.getConn();
 51         Statement state =null;
 52         ResultSet rs = null;
 53         String sql="insert into student(pid,name,sex,classes,zhuanye) values('"+id+"','"+name+"','"+sex+"','"+classes+"','"+zhuanye+"')";
 54         state = conn.createStatement();
 55         state.executeUpdate(sql);
 56         DBUtil.close(state, conn);
 57     }
 58    //遍历所有的课程
 59     public List<classes> searchclasses() {
 60     
 61             //构建遍历函数
 62             List<classes>list =new ArrayList<>();
 63             //建立数据库链接
 64             Connection conn=DBUtil.getConn();
 65             //sql 语句 查询
 66             String sql="select * from classes";
 67             Statement pstmt = null;
 68             try {
 69                 //执行sql语句
 70                 pstmt = conn.createStatement();
 71                 ResultSet rs=pstmt.executeQuery(sql);
 72                 classes use=null;
 73                 while(rs.next()) {
 74                     //遍历获取的信息
 75                     String name=rs.getString("name");
 76                     String teacher=rs.getString("teacher");
 77                     String id=rs.getString("pid");
 78                     String number=rs.getString("number");
 79                     String count=rs.getString("count");
 80 
 81                     use=new classes(name,teacher,id,number,count);
 82                     list.add(use);
 83                 }
 84             } catch (SQLException e) {
 85                 // TODO Auto-generated catch block
 86                 e.printStackTrace();
 87             }
 88             finally {
 89                 DBUtil.close(pstmt, conn);
 90                 }
 91             
 92             return list;
 93             }
 94     //增设新课程
 95     public void addclasses(String name, String teacher, String pid, String number,String count) throws SQLException {
 96         Connection conn = DBUtil.getConn();
 97         Statement state =null;
 98         String sql="insert into classes(name,teacher,pid,number,count) values('"+name+"','"+teacher+"','"+pid+"','"+number+"','"+count+"')";
 99         state = conn.createStatement();
100         state.executeUpdate(sql);
101         DBUtil.close(state, conn);
102         
103         
104     }
105     //遍历学生的信息
106     public static ArrayList<student> getstudent(String pid) throws Exception{
107         ArrayList<student>list =new ArrayList<>();
108         Connection conn=DBUtil.getConn();
109         Statement pstmt = null;
110         String sql="select * from student where pid = '"+pid+"'";
111         pstmt = conn.createStatement();
112         ResultSet rs=pstmt.executeQuery(sql);
113         student student=null;
114         while(rs.next()) {
115             //遍历获取的信息
116             String id=rs.getString("pid");
117             String name=rs.getString("name");
118             String sex=rs.getString("sex");
119             String classes=rs.getString("classes");
120             String zy=rs.getString("zhuanye");
121             student=new student(id,name,sex,classes,zy);
122             list.add(student);
123             System.out.println(id);
124             System.out.println(name);
125             System.out.println(sex);
126             System.out.println(classes);
127             System.out.println(zy);
128         }
129         return list;
130         
131     }
132     //遍历教师的信息
133     public static ArrayList<teacher> getteacher(String pid) throws Exception{
134         ArrayList<teacher>list =new ArrayList<>();
135         Connection conn=DBUtil.getConn();
136         Statement pstmt = null;
137         String sql="select * from teacher where pid = '"+pid+"'";
138         pstmt = conn.createStatement();
139         ResultSet rs=pstmt.executeQuery(sql);
140         teacher teacher=null;
141         while(rs.next()) {
142             //遍历获取的信息
143             String id=rs.getString("pid");
144             String name=rs.getString("name");
145             String sex=rs.getString("sex");
146             String xy=rs.getString("xueyuan");
147             String zc=rs.getString("zhicheng");
148             teacher=new teacher(id,name,sex,xy,zc);
149             list.add(teacher);
150             System.out.println(id);
151             System.out.println(name);
152             System.out.println(sex);
153             System.out.println(xy);
154             System.out.println(zc);
155         }
156         return list;
157         
158     }
159     
160     
161     
162     
163     
164     
165     //修改学生的个人信息  但是jsp学号不允许修改  在这里当作修改的索引
166     public void updatestudent(String id, String name, String sex, String classes, String zhuanye) throws Exception {
167         Connection conn = DBUtil.getConn();
168         Statement state =null;
169         String sql="update student set name='"+name+"',sex='"+sex+"',classes='"+classes+"',zhuanye='"+zhuanye+"'   where pid='"+id+"' ";
170         state=conn.createStatement();
171         state.executeUpdate(sql);
172         
173         DBUtil.close(state, conn);
174     }
175    // 修改教师个人信息
176     public void updateteacher(String id, String name, String sex, String xueyuan, String zhicheng) throws Exception {
177         Connection conn = DBUtil.getConn();
178         Statement state =null;
179         String sql="update teacher set name='"+name+"',sex='"+sex+"',xueyuan='"+xueyuan+"',zhicheng='"+zhicheng+"'   where pid='"+id+"' ";
180         state=conn.createStatement();
181         state.executeUpdate(sql);
182         System.out.println("更新");
183         DBUtil.close(state, conn);
184         
185     }
186 
187     public void addteacher(String id, String name, String sex, String classes, String zhuanye) throws Exception {
188         Connection conn = DBUtil.getConn();
189         Statement state =null;
190         String sql="insert into teacher(pid,name,sex,xueyuan,zhicheng) values('"+id+"','"+name+"','"+sex+"','"+classes+"','"+zhuanye+"')";
191         state = conn.createStatement();
192         state.executeUpdate(sql);
193         DBUtil.close(state, conn);
194         
195     }
196 
197     public void loginteacher(String id) throws Exception {
198         Connection conn = DBUtil.getConn();
199         Statement state =null;
200         String sql="insert into login(name,pwd,status) values('"+id+"','"+id+"','"+2+"')";
201         state = conn.createStatement();
202         state.executeUpdate(sql);
203         DBUtil.close(state, conn);
204         
205     }
206 
207     public void loginstudent(String id) throws Exception {
208         Connection conn = DBUtil.getConn();
209         Statement state =null;
210         String sql="insert into login(name,pwd,status) values('"+id+"','"+id+"','"+1+"')";
211         state = conn.createStatement();
212         state.executeUpdate(sql);
213         DBUtil.close(state, conn);
214         
215     }
216     //选课
217     public static void addclass(String name,String studentid,String id) throws Exception {
218         Connection conn = DBUtil.getConn();
219         Statement state =null;
220         //给记录课程的数据库做标记  
221         String sql="select * from classes where name = '"+name+"'";
222         state = conn.createStatement();
223         ResultSet rs=state.executeQuery(sql);
224         int count=0;
225         String a=null;
226         //获取已经选取该课程的人数
227         while(rs.next()) {
228              a=rs.getString("count");
229         }
230         //将人数加一
231         count=Integer.parseInt(a);
232         count++;
233         a=Integer.toString(count);
234         //更新选课人数
235         String sql1="update classes set count='"+count+"'   where name='"+name+"' ";
236         state.executeUpdate(sql1);
237         //获取选课学生的先前选课情况
238         String sql2="select * from student where pid = '"+studentid+"'";
239         String kecheng=null;
240         state = conn.createStatement();
241         ResultSet rs1=state.executeQuery(sql2);
242         
243         while(rs1.next()) {
244             kecheng=rs1.getString("class");
245         }
246         //添加一个新的编号
247         kecheng=kecheng+","+id;
248         //给选课的学生做标记  记录学生的选课信息  在学生的数据库内记录
249         String sql3="update student set class='"+kecheng+"'   where pid='"+studentid+"' ";
250         state.executeUpdate(sql3);
251         DBUtil.close(state, conn);
252     }
253   //通过姓名查询教师信息  不准确
254     public static List<teacher> getteachers(String names) throws Exception{
255         ArrayList<teacher>list =new ArrayList<>();
256         Connection conn=DBUtil.getConn();
257         Statement pstmt = null;
258         String sql="select * from teacher where name = '"+names+"'";
259         pstmt = conn.createStatement();
260         ResultSet rs=pstmt.executeQuery(sql);
261         teacher teacher=null;
262         while(rs.next()) {
263             //遍历获取的信息
264             String id=rs.getString("pid");
265             String name=rs.getString("name");
266             String sex=rs.getString("sex");
267             String xy=rs.getString("xueyuan");
268             String zc=rs.getString("zhicheng");
269             teacher=new teacher(id,name,sex,xy,zc);
270             list.add(teacher);
271             System.out.println("查看教师信息");
272         }
273         return list;
274         
275     }
276     //查询教师开设的课程
277     public static List<classes> getclass(String names) throws Exception {
278         // TODO Auto-generated method stub
279         
280         List<classes> list=new ArrayList<>();
281         Connection conn = DBUtil.getConn();
282         Statement state =null;
283         String sql="select * from classes where teacher like '%"+names+"%'";
284         state = conn.createStatement();
285         ResultSet rs=state.executeQuery(sql);
286         classes cs=null;
287         while(rs.next()) {
288             String name=rs.getString("name");
289             String teacher=rs.getString("teacher");
290             String id=rs.getString("pid");
291             String number=rs.getString("number");
292             String count=rs.getString("count");
293             cs=new classes(name,teacher,id,number,count);
294             list.add(cs);
295             System.out.println("教师查询选课结果");
296         }
297         return list;
298     }
299     //获取学生信息  通过id查找
300     public static List<student> getstudents(String id) throws Exception {
301         List<student> list=new ArrayList<>();
302         Connection conn = DBUtil.getConn();
303         Statement state =null;
304         //模糊查询
305         String sql="select * from student where class like '%"+id+"%'";
306         state = conn.createStatement();
307         ResultSet rs=state.executeQuery(sql);
308         student s=null;
309         while(rs.next()) {
310             String pid=rs.getString("pid");
311             String name=rs.getString("name");
312             String sex=rs.getString("sex");
313             String classes=rs.getString("classes");
314             String zy=rs.getString("zhuanye");
315             s=new student(pid,name,sex,classes,zy);
316             list.add(s);
317         }
318         return list;
319     }
320 
321 
322 
323 }

com.Servlet 类：学生教师管理员登陆

 1 package com.Servlet;
 2 
 3 import java.io.IOException;
 4 import java.io.UnsupportedEncodingException;
 5 
 6 import javax.servlet.ServletException;
 7 import javax.servlet.annotation.WebServlet;
 8 import javax.servlet.http.HttpServlet;
 9 import javax.servlet.http.HttpServletRequest;
10 import javax.servlet.http.HttpServletResponse;
11 
12 import com.Dao.Dao;
13 
14 /**
15  * Servlet implementation class adminServlet
16  */
17 @WebServlet("/adminServlet")
18 public class adminServlet extends HttpServlet {
19     private static final long serialVersionUID = 1L;
20        
21     protected void service(HttpServletRequest req,HttpServletResponse resp)throws ServletException,IOException
22     {
23         req.setCharacterEncoding("UTF-8");
24        
25         String method = req.getParameter("method");
26         if(method.equals("addstudent"))
27         {
28             try {
29                 addstudent(req,resp);
30             } catch (Exception e) {
31                 // TODO Auto-generated catch block
32                 e.printStackTrace();
33             }
34         }
35         
36         if(method.equals("addteacher"))
37         {
38             try {
39                 addteacher(req,resp);
40             } catch (Exception e) {
41                 // TODO Auto-generated catch block
42                 e.printStackTrace();
43             }
44         }
45     }
46             //添加教师信息
47     private void addteacher(HttpServletRequest req, HttpServletResponse resp) throws Exception {
48         
49         
50         req.setCharacterEncoding("UTF-8");
51         
52         String id = req.getParameter("id");
53          String name = req.getParameter("name");
54          String sex = req.getParameter("sex");
55          String classes = req.getParameter("classes");
56          String zhuanye = req.getParameter("zhicheng");
57          
58          Dao dao=new Dao();
59          System.out.println(zhuanye);
60          dao.addteacher(id,name,sex,classes,zhuanye);
61          dao.loginteacher(id);
62          //添加完成重新刷新界面 
63          req.getRequestDispatcher("addteacher.jsp").forward(req, resp);
64     }
65         //添加学生信息
66     private void addstudent(HttpServletRequest req, HttpServletResponse resp) throws Exception {
67         // TODO Auto-generated method stub
68         
69         req.setCharacterEncoding("UTF-8");
70         
71         String id = req.getParameter("id");
72         String name = req.getParameter("name");
73         String sex = req.getParameter("sex");
74         String classes = req.getParameter("classes");
75         String zhuanye = req.getParameter("zhuanye");
76        
77         Dao dao=new Dao();
78         dao.addstudent(id,name,sex,classes,zhuanye);
79         dao.loginstudent(id);
80         //跳转到新的界面
81         req.getRequestDispatcher("addstudent.jsp").forward(req, resp);
82     }
83 
84 }

 1 package com.Servlet;
 2 /*
 3  * 登陆界面调用的Servlet
 4  */
 5 
 6 import java.io.IOException;
 7 import java.io.UnsupportedEncodingException;
 8 
 9 import javax.servlet.ServletException;
10 import javax.servlet.annotation.WebServlet;
11 import javax.servlet.http.Cookie;
12 import javax.servlet.http.HttpServlet;
13 import javax.servlet.http.HttpServletRequest;
14 import javax.servlet.http.HttpServletResponse;
15 
16 import com.Bean.premission;
17 import com.Dao.Dao;
18 
19 /**
20  * Servlet implementation class LoginServlet
21  */
22 @WebServlet("/LoginServlet")
23 public class LoginServlet extends HttpServlet {
24     private static final long serialVersionUID = 1L;
25        
26      protected void service(HttpServletRequest req,HttpServletResponse resp)throws ServletException,IOException
27         {
28             req.setCharacterEncoding("UTF-8");
29            
30             String method = req.getParameter("method");
31             if(method.equals("login"))
32             {
33                 login(req,resp);
34             }
35         }
36 
37     private void login(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
38         // TODO Auto-generated method stub
39         try {
40             req.setCharacterEncoding("UTF-8");
41         } catch (UnsupportedEncodingException e) {
42             // TODO Auto-generated catch block
43             e.printStackTrace();
44         }
45         String username = req.getParameter("user");
46         String password = req.getParameter("password");
47         System.out.println(username);
48         System.out.println(password);
49         premission p=new premission();
50         p.setName(username);
51         p.setPwd(password);
52         Dao dao=new Dao();
53         //获取登陆账号的身份权限信息
54         int status=dao.login(username,password);
55         //通过状态来跳转不同界面
56         if(status==1) {
57             System.out.println("学生");
58             //设置cookie 作为边的参数
59             Cookie cookie=new Cookie("student", username);
60             cookie.setPath("/");
61             //设置存活时间
62             cookie.setMaxAge(60*60*24);
63             resp.addCookie(cookie);
64             req.getRequestDispatcher("student.jsp").forward(req, resp);
65         }else if(status==2) {
66             System.out.println("老师");
67             //设置cookie 作为边的参数
68             Cookie cookie=new Cookie("teacher", username);
69             cookie.setPath("/");
70             //设置存活时间
71             cookie.setMaxAge(60*60*24);
72             resp.addCookie(cookie);
73             req.getRequestDispatcher("teacher.jsp").forward(req, resp);
74         }else if(status==3) {
75             System.out.println("管理员");
76             //设置cookie 作为边的参数
77             req.getRequestDispatcher("admin.jsp").forward(req, resp);
78         }else if(status==0) {
79             System.out.println("错误");
80             req.getRequestDispatcher("error.jsp").forward(req, resp);
81         }
82         
83     }
84 
85 }

  1 package com.Servlet;
  2 
  3 import java.io.IOException;
  4 import java.io.UnsupportedEncodingException;
  5 import java.util.List;
  6 
  7 import javax.servlet.ServletException;
  8 import javax.servlet.annotation.WebServlet;
  9 import javax.servlet.http.HttpServlet;
 10 import javax.servlet.http.HttpServletRequest;
 11 import javax.servlet.http.HttpServletResponse;
 12 
 13 import com.Bean.classes;
 14 import com.Dao.Dao;
 15 
 16 /**
 17  * Servlet implementation class StudentServlet
 18  */
 19 @WebServlet("/StudentServlet")
 20 public class StudentServlet extends HttpServlet {
 21     private static final long serialVersionUID = 1L;
 22        
 23      protected void service(HttpServletRequest req,HttpServletResponse resp)throws ServletException,IOException
 24         {
 25             req.setCharacterEncoding("UTF-8");
 26            
 27             String method = req.getParameter("method");
 28             if(method.equals("add"))
 29             {
 30                 try {
 31                     add(req,resp);
 32                 } catch (Exception e) {
 33                     // TODO Auto-generated catch block
 34                     e.printStackTrace();
 35                 }
 36             }
 37             if(method.equals("show"))
 38             {
 39                 try {
 40                     show(req,resp);
 41                 } catch (Exception e) {
 42                     // TODO Auto-generated catch block
 43                     e.printStackTrace();
 44                 }
 45             }
 46             
 47             if(method.equals("update"))
 48             {
 49                 try {
 50                     update(req,resp);
 51                 } catch (Exception e) {
 52                     // TODO Auto-generated catch block
 53                     e.printStackTrace();
 54                 }
 55             }
 56             
 57             if(method.equals("addclasses")) {
 58                 try {
 59                     addclass(req,resp);
 60                 } catch (Exception e) {
 61                     // TODO Auto-generated catch block
 62                     e.printStackTrace();
 63                 }
 64             }
 65             
 66         }
 67   //选课
 68     private void addclass(HttpServletRequest req, HttpServletResponse resp) throws Exception {
 69         req.setCharacterEncoding("UTF-8");
 70         String name=req.getParameter("name");
 71         String studentid=req.getParameter("studentid");
 72         String id=req.getParameter("id");
 73         Dao.addclass(name,studentid,id);
 74         req.getRequestDispatcher("show.jsp").forward(req, resp);
 75     }
 76  // 修改学生信息
 77     private void update(HttpServletRequest req, HttpServletResponse resp) throws Exception {
 78         
 79             req.setCharacterEncoding("UTF-8");
 80             String id = req.getParameter("id");
 81             String name = req.getParameter("name");
 82             String sex = req.getParameter("sex");
 83             String classes = req.getParameter("classes");
 84             String zhuanye = req.getParameter("zhuanye");
 85             Dao dao=new Dao();
 86             dao.updatestudent(id,name,sex,classes,zhuanye);
 87             req.getRequestDispatcher("update1.jsp").forward(req, resp);
 88         
 89         
 90     }
 91      //展示所有的课程
 92     private void show(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
 93         // TODO Auto-generated method stub
 94         req.setCharacterEncoding("UTF-8");
 95         
 96         Dao dao=new Dao();
 97         List<classes> list= dao.searchclasses();
 98         req.setAttribute("list", list);
 99         req.getRequestDispatcher("show.jsp").forward(req, resp);
100     }
101     // 添加学生信息
102     private void add(HttpServletRequest req, HttpServletResponse resp) throws Exception {
103         // TODO Auto-generated method stub
104         try {
105             req.setCharacterEncoding("UTF-8");
106         } catch (UnsupportedEncodingException e) {
107             // TODO Auto-generated catch block
108             e.printStackTrace();
109         }
110      String id = req.getParameter("id");
111      String name = req.getParameter("name");
112      String sex = req.getParameter("sex");
113      String classes = req.getParameter("classes");
114      String zhuanye = req.getParameter("zhuanye");
115   
116      System.out.println(id);
117      System.out.println(name);
118      System.out.println(sex);
119      System.out.println(classes);
120      System.out.println(zhuanye);
121      Dao dao=new Dao();
122      
123      
124      dao.addstudent(id,name,sex,classes,zhuanye);
125      
126          //req.getRequestDispatcher("student.jsp").forward(req, resp);
127      
128      
129     }
130 
131 }

  1 package com.Servlet;
  2 
  3 import java.io.IOException;
  4 import java.io.UnsupportedEncodingException;
  5 import java.sql.SQLException;
  6 import java.util.List;
  7 
  8 import javax.servlet.ServletException;
  9 import javax.servlet.annotation.WebServlet;
 10 import javax.servlet.http.HttpServlet;
 11 import javax.servlet.http.HttpServletRequest;
 12 import javax.servlet.http.HttpServletResponse;
 13 
 14 import com.Bean.classes;
 15 import com.Bean.student;
 16 import com.Bean.teacher;
 17 import com.Dao.Dao;
 18 
 19 /**
 20  * Servlet implementation class TeacherServlet
 21  */
 22 @WebServlet("/TeacherServlet")
 23 public class TeacherServlet extends HttpServlet {
 24     private static final long serialVersionUID = 1L;
 25        
 26     protected void service(HttpServletRequest req,HttpServletResponse resp)throws ServletException,IOException
 27     {
 28         req.setCharacterEncoding("UTF-8");
 29        
 30         String method = req.getParameter("method");
 31         if(method.equals("add"))
 32         {
 33             try {
 34                 add(req,resp);
 35             } catch (Exception e) {
 36                 // TODO Auto-generated catch block
 37                 e.printStackTrace();
 38             }
 39         }
 40         if(method.equals("update"))
 41         {
 42             try {
 43                 update(req,resp);
 44             } catch (Exception e) {
 45                 // TODO Auto-generated catch block
 46                 e.printStackTrace();
 47             }
 48         }
 49         if(method.equals("seacrch")) {
 50             try {
 51                 search(req,resp);
 52             } catch (Exception e) {
 53                 // TODO Auto-generated catch block
 54                 e.printStackTrace();
 55             }
 56         }
 57         
 58         if(method.equals("searchclass")) {
 59             try {
 60                 searchclass(req,resp);
 61             } catch (Exception e) {
 62                 // TODO Auto-generated catch block
 63                 e.printStackTrace();
 64             }
 65         }
 66         if(method.equals("checkstudent")) {
 67             try {
 68                 checkstudent(req,resp);
 69             } catch (Exception e) {
 70                 // TODO Auto-generated catch block
 71                 e.printStackTrace();
 72             }
 73         }
 74         
 75     }
 76     //查询所选课程的学生信息
 77     private void checkstudent(HttpServletRequest req, HttpServletResponse resp) throws Exception {
 78         req.setCharacterEncoding("UTF-8");
 79         String id=req.getParameter("id");
 80         //获取课程编号 据此查找学生 模糊
 81         List<student>list =Dao.getstudents(id);
 82         req.setAttribute("list", list);
 83         req.getRequestDispatcher("showstudentinfo.jsp").forward(req, resp);
 84     }
 85     //教师查询学生选课结果
 86     private void searchclass(HttpServletRequest req, HttpServletResponse resp) throws Exception {
 87         req.setCharacterEncoding("UTF-8");
 88         String name=req.getParameter("name");
 89          
 90         List<classes> list=Dao.getclass(name);
 91         req.setAttribute("list", list);
 92         req.getRequestDispatcher("showselectclass.jsp").forward(req, resp);
 93     }
 94    //查询教师信息
 95     private void search(HttpServletRequest req, HttpServletResponse resp) throws Exception {
 96         req.setCharacterEncoding("UTF-8");
 97         String name=req.getParameter("name");
 98         List<teacher> list=Dao.getteachers(name);
 99         req.setAttribute("list", list);
100         req.getRequestDispatcher("showteacherinfo.jsp").forward(req, resp);
101     }
102     //修改教师个人信息
103     private void update(HttpServletRequest req, HttpServletResponse resp) throws Exception {
104         req.setCharacterEncoding("UTF-8");
105         String id = req.getParameter("id");
106         String name = req.getParameter("name");
107         String sex = req.getParameter("sex");
108         String xueyuan = req.getParameter("xueyuan");
109         String zhicheng = req.getParameter("zhicheng");
110         Dao dao=new Dao();
111         dao.updateteacher(id,name,sex,xueyuan,zhicheng);
112         req.getRequestDispatcher("update2.jsp").forward(req, resp);
113         
114     }
115     //添加新的课程
116     private void add(HttpServletRequest req, HttpServletResponse resp) throws UnsupportedEncodingException, SQLException {
117         // TODO Auto-generated method stub
118         req.setCharacterEncoding("UTF-8");
119         
120         String name = req.getParameter("name");
121         String  teacher= req.getParameter("teacher");
122         String pid = req.getParameter("id");
123         String number = req.getParameter("number");
124         String count="0";
125         Dao dao=new Dao();
126         dao.addclasses(name,teacher,pid,number,count);
127     }
128 }

jsp界面：

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>管理员添加学生</title>
 8 
 9 
10 
11 </head>
12 <body>
13 
14 <div class="container">
15     <section>
16         <form action="StudentServlet?method=add" method="post" onsubmit="return check()">
17             <span class="cname">学号</span>
18             <input type="text" name="id" class="icname" placeholder="  class-name" id="id">
19             <br/>
20             
21             <span class="teacher">姓名</span>
22             <input type="text" name="name" class="iteacher" placeholder="  teacher" id="name">
23             <br/>
24             
25             <span class="place">性别</span>
26             <label><input type="radio" name="sex" id="sex" value="男">男</label>
27                <label><input type="radio" name="sex" id="sex" value="女">女</label>
28             <br/>
29             
30             <span class="place">班级</span>
31             <input type="text" name="classes" class="iteacher" placeholder="  teacher" id="classes">
32             <br/>
33             
34             
35             <span class="place">专业</span>
36             <input type="text" name="zhuanye" class="iteacher" placeholder="  teacher" id="zhuanye">
37             <br/>
38             
39             <input type="submit" value="保存" class="butn">
40             <br/>
41         </form>
42     </section>
43 </div>
44 
45 <script type="text/javascript">
46     
47     
48 </script>
49     
50 </body>
51 </html>

 1 <%@page import="com.Dao.*"%>
 2 <%@page import="com.Bean.*"%>
 3 <%@page import="org.apache.jasper.tagplugins.jstl.core.ForEach"%>
 4 <%@page import="java.util.ArrayList"%>
 5 <%@page import="java.util.List" %>
 6 <%@ page language="java" contentType="text/html; charset=UTF-8"
 7     pageEncoding="UTF-8"%>
 8 <!DOCTYPE html>
 9 <html>
10 <head>
11 <meta charset="UTF-8">
12 <title>教师添加新课程</title>
13 
14 </head>
15 <script type="text/javascript">
16 function onload()
17 {
18     <%
19     Cookie[] cookies=request.getCookies();
20     String value="";
21     ArrayList<teacher> list=new ArrayList<>();
22     if(cookies!=null){
23         System.out.println("cookie的长度为:"+cookies.length);
24         for(int i=0;i<cookies.length;i++)
25         {
26             
27             if(cookies[i].getName().equals("teacher"))
28             {
29                 value=cookies[i].getValue();
30                 System.out.println(value+":");
31                 list=Dao.getteacher(value);
32             }
33         }
34     }
35     %>
36 }
37 </script>
38 <body>
39 
40 <div class="container">
41     <section>
42         <form action="TeacherServlet?method=add" method="post" onsubmit="return check()">
43              <%for(teacher s:list) 
44             {
45                 
46             %>
47             <span class="cname">课程名称</span>
48             <input type="text" name="name" class="icname" placeholder="  class-name" id="name">
49             <br/>
50             
51             <span class="teacher">课程教师</span>
52             <input type="text" name="teacher" class="iteacher" readonly="readonly"  placeholder="  teacher" id="teacher" value=<%=s.getName() %>>
53             <br/>
54             <% } %>
55             <span class="place">课程人数</span>
56             <input type="text" name="number" class="iplace" placeholder=" number" id="number">
57             <br/>
58             
59             <span class="place">课程编号</span>
60             <input type="text" name="id" class="iplace" placeholder="  class-id" id="id">
61             <br/>
62             
63             <input type="submit" value="保&nbsp;存" class="butn">
64             <br/>
65         </form>
66     </section>
67 </div>
68 
69 
70     
71 </body>
72 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>管理员添加学生</title>
 8 
 9 
10 </head>
11 <body>
12 
13 <div class="container">
14     <section>
15         <form action="adminServlet?method=addstudent" method="post" onsubmit="return check()">
16             <span class="cname">学号</span>
17             <input type="text" name="id" class="icname" placeholder="  xuehao" id="id">
18             <br/>
19             
20             <span class="teacher">姓名</span>
21             <input type="text" name="name" class="iteacher" placeholder="  name" id="name">
22             <br/>
23             
24             <span class="place">性别</span>
25             <label><input type="radio" name="sex" id="sex" value="男">男</label>
26                <label><input type="radio" name="sex" id="sex" value="女">女</label>
27             <br/>
28             
29             <span class="place">班级</span>
30             <input type="text" name="classes" class="iteacher" placeholder="  banji" id="classes">
31             <br/>
32             
33             
34             <span class="place">专业</span>
35             <input type="text" name="zhuanye" class="iteacher" placeholder="  zhuanye" id="zhuanye">
36             <br/>
37             
38             <input type="submit" value="保存" class="butn">
39             <br/>
40         </form>
41     </section>
42 </div>
43 
44 <script type="text/javascript">
45     
46     
47 </script>
48     
49 </body>
50 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>管理员添加教师</title>
 8 
 9 
10 
11 </head>
12 <body>
13 
14 <div class="container">
15     <section>
16         <form action="adminServlet?method=addteacher" method="post" onsubmit="return check()">
17             <span class="cname">工号</span>
18             <input type="text" name="id" class="icname" placeholder="  id" id="id">
19             <br/>
20             
21             <span class="teacher">姓名</span>
22             <input type="text" name="name" class="iteacher" placeholder="  name" id="name">
23             <br/>
24             
25             <span class="place">性别</span>
26             <label><input type="radio" name="sex" id="sex" value="男">男</label>
27                <label><input type="radio" name="sex" id="sex" value="女">女</label>
28             <br/>
29             
30             <span class="place">学院</span>
31             <input type="text" name="classes" class="iteacher" placeholder="  xueyuan" id="classes">
32             <br/>
33             
34             
35             <span class="place">职称</span>
36                <select name="zhicheng" id="zhicheng">
37                    <option value="教授">教授</option>
38                    <option value="副教授">副教授</option>
39                    <option value="讲师">讲师</option>
40                    <option value="助教">助教</option>
41                    </select>
42             <br/>
43             
44             <input type="submit" value="保存" class="butn">
45             <br/>
46         </form>
47     </section>
48 </div>
49 
50 <script type="text/javascript">
51     
52     
53 </script>
54     
55 </body>
56 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>课程信息管理系统:管理员界面</title>
 8 
 9 <style type="text/css">
10 
11 .headframe{
12     100%;
13     height:130px;
14     border:0;
15 }
16 
17 .leftframe{
18     float:left;
19     250px;
20     height:600px;
21     border:0;    
22 }
23 
24 .mainframe{
25     float:right;
26     1200px;
27     height:600px;
28     border:0;
29 }
30 
31 </style>
32 
33 </head>
34 
35 
36 <iframe src="head.jsp" class="headframe" scrolling="no"></iframe>
37 <iframe src="left3.jsp" class="leftframe" scrolling="no"></iframe>
38 <iframe src="main.jsp" name="mainAction" class="mainframe"></iframe>
39 
40 
41 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>错误界面</title>
 8 </head>
 9 <body>
10     用户不存在或者用户密码错误
11 </body>
12 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>标题头</title>
 8 <style type="text/css">
 9 
10 .headdiv{
11     background-color:#3F51B5;
12     100%; 
13     height:130px;
14 }
15 
16 .headdiv P{
17     font-family:YouYuan;
18     font-size:20px;
19     color:#E8EAF6;
20     position:relative;
21     left:20px;
22     top:45px;
23 }
24 
25 .headdiv a{
26     font-family:YouYuan;
27     font-size:20px;
28     color:#E8EAF6;
29     
30     text-align:right;
31 }
32 
33 </style>
34 
35 
36 </head>
37 <body>
38 
39 <div class="headdiv">
40     <p>课程信息管理 </p> <br>
41      &emsp;&emsp;<a href="index.jsp" target="_top">退出</a>
42 </div>
43 
44 </body>
45 </html>

  1 <%@ page language="java" contentType="text/html; charset=UTF-8"
  2     pageEncoding="UTF-8"%>
  3 <!DOCTYPE html>
  4 
  5 <%@page import="com.Servlet.*"%>
  6 <%@page import="com.Bean.*"%>
  7 <%@page import="com.DBUtil.*"%>
  8 <%@page import="com.Dao.*"%>
  9 <html>
 10 <head>
 11 <meta charset="UTF-8">
 12 <title>登陆界面</title>
 13 <style type="text/css">
 14 
 15 .colorcloth{
 16     background-color:#3399FF;
 17     100%; 
 18     height:210px;
 19 }
 20 
 21 .container{
 22      background-color:#FFFFFF;
 23      400px;
 24     height:210px;
 25     margin:200px auto;
 26 }
 27 
 28 .buser{
 29     position:relative;
 30     left:30px;
 31     top:5px;
 32     border-radius:3px;
 33     210px;
 34     height:20px;
 35     border:#DCDCDC 1px solid;    
 36 }
 37 
 38 .buser:hover{
 39     box-shadow:0 0 12px #1E90FF;
 40 }
 41 
 42 .bpassword{
 43     position:relative;
 44     left:45px;
 45     top:20px;
 46     border-radius:3px;
 47     210px;
 48     height:20px;
 49     border:#DCDCDC 1px solid;
 50 }
 51 
 52 .bpassword:hover{
 53     box-shadow:0 0 12px #1E90FF;
 54 }
 55 
 56 .user{
 57     position:relative;
 58     left:20px;
 59     top:5px;
 60     font-size:14px;
 61     font-family:STHeiti;
 62     font-weight:600;
 63 }
 64 
 65 .password{
 66     position:relative;
 67     left:35px;
 68     top:20px;
 69     font-size:14px;
 70     font-family:STHeiti;
 71     font-weight:600;
 72 }
 73 
 74 .butn{
 75     position:relative;
 76     left:77px;
 77     top:55px;
 78     215px;
 79     height:25px;
 80     border-radius:3px;
 81     color:white;
 82     background-color:#0066CC;
 83     text-align:center;
 84     text-decoration:none;
 85     border:none;
 86 }
 87 
 88 .butn:hover{
 89     box-shadow:0 0 10px #0066CC;
 90 }
 91 
 92 .title{
 93     background-color:#FFFFFF;
 94     100%;
 95 }
 96 
 97 .title p{
 98     font-family:YouYuan;
 99     font-size:90px;
100     color:#0066CC;
101     text-align:center;
102 }
103 
104 </style>
105 </head>
106 <body>
107 <div class="title">
108     <p>课程信息登录</p>
109 </div>
110 
111 <div class="colorcloth">
112 <div class="container">
113     <section>
114         <form action="LoginServlet?method=login" method="post">
115         
116             <span class="user">用户名</span>
117             <input type="text" name="user" class="buser" placeholder="  Usename">
118             <br/>
119             <span class="password">密码</span>
120             <input type="password" name="password" class="bpassword" placeholder="  Password">
121             <br/>
122             <input type="submit" value="登录" class="butn">
123             <br/>
124         </form>
125     </section>
126 </div>
127 </div>
128 
129 <script type="text/javascript">
130 
131 
132 </script>
133 
134 </body>
135 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>学生左侧栏</title>
 8 <style type="text/css">
 9 
10 .leftMenu{
11     background-color:#7986CB;
12     250px; 
13     height:600px;
14     position:relative;
15     top:0px;
16 }
17 
18 .menuParent{
19     background-color:#BBDEFB;
20 }
21 
22 
23 
24 </style>
25 </head>
26 <body>
27 
28 <div class="leftMenu">
29     <div class="menu">
30     
31     
32         <div class="menuParent">
33             <div class="ListTitlePanel">
34                 <div class="ListTitle">
35                     <strong>课程信息管理</strong>                    
36                     <div class="leftbgbt"></div>
37                 </div>
38             </div>
39             
40             <div class="menuList">
41 <!--                 <div><a target="mainAction" href="add1.jsp">添加个人信息</a></div> -->
42                 <div><a target="mainAction" href="update1.jsp">修改个人信息</a></div>
43                 <div><a target="mainAction" href="StudentServlet?method=show">浏览课程信息</a></div>
44             </div>
45         </div>
46         
47         
48     </div>
49 </div>
50 
51 <script type="text/javascript">
52 
53 
54 
55 </script>
56 
57 </body>
58 </html>

 1 <%@page import="com.Dao.*"%>
 2 <%@page import="com.Bean.*"%>
 3 <%@page import="org.apache.jasper.tagplugins.jstl.core.ForEach"%>
 4 <%@page import="java.util.ArrayList"%>
 5 <%@page import="java.util.List" %>
 6 <%@ page language="java" contentType="text/html; charset=UTF-8"
 7     pageEncoding="UTF-8"%>
 8 <!DOCTYPE html>
 9 <html>
10 <head>
11 <meta charset="UTF-8">
12 <title>教师左侧栏</title>
13 <style type="text/css">
14 
15 .leftMenu{
16     background-color:#7986CB;
17     250px; 
18     height:600px;
19     position:relative;
20     top:0px;
21 }
22 
23 .menuParent{
24     background-color:#BBDEFB;
25 }
26 
27 
28 
29 
30 </style>
31 
32 
33 </head>
34 <script type="text/javascript">
35 
36 function onload()
37 {
38     <%
39     Cookie[] cookies=request.getCookies();
40     String value="";
41     ArrayList<teacher> list=new ArrayList<>();
42     if(cookies!=null){
43         System.out.println("cookie的长度为:"+cookies.length);
44         for(int i=0;i<cookies.length;i++)
45         {
46             
47             if(cookies[i].getName().equals("teacher"))
48             {
49                 value=cookies[i].getValue();
50                 System.out.println(value+":");
51                 list=Dao.getteacher(value);
52             }
53         }
54     }
55     %>
56 }
57 
58 </script>
59 <body onload="onload()">
60 
61 <div class="leftMenu">
62      
63     <div class="menu">
64 
65     
66         <div class="menuParent">
67             <div class="ListTitlePanel">
68                 <div class="ListTitle">
69                     <strong>课程信息管理</strong>                    
70                     <div class="leftbgbt"></div>
71                 </div>
72             </div>
73              <%for(teacher s:list) 
74             {
75                 
76             %>
77             <div class="menuList">
78                 <div><a target="mainAction" href="add2.jsp">添加课程信息</a></div>
79                 <div><a target="mainAction" href="update2.jsp">修改个人信息</a></div>
80                 <div><a target="mainAction" href="TeacherServlet?method=searchclass&name=<%=s.getName() %>">浏览选课信息</a></div>
81             </div>
82             <% } %>
83         </div>
84         
85         
86     </div>
87 </div>
88 
89 <script type="text/javascript">
90 
91 
92 
93 </script>
94 
95 </body>
96 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>管理员左侧栏</title>
 8 <style type="text/css">
 9 
10 .leftMenu{
11     background-color:#7986CB;
12     250px; 
13     height:600px;
14     position:relative;
15     top:0px;
16 }
17 
18 .menuParent{
19     background-color:#BBDEFB;
20 }
21 
22 
23 
24 </style>
25 </head>
26 <body>
27 
28 <div class="leftMenu">
29     <div class="menu">
30     
31     
32         <div class="menuParent">
33             <div class="ListTitlePanel">
34                 <div class="ListTitle">
35                     <strong>课程信息管理</strong>                    
36                     <div class="leftbgbt"></div>
37                 </div>
38             </div>
39             
40             <div class="menuList">
41                 <div><a target="mainAction" href="addstudent.jsp">添加学生</a></div>
42                 <div><a target="mainAction" href="addteacher.jsp">添加教师</a></div>
43             </div>
44         </div>
45         
46         
47     </div>
48 </div>
49 
50 <script type="text/javascript">
51 
52 
53 
54 </script>
55 
56 </body>
57 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>显示界面</title>
 8 </head>
 9 <body>
10     
11     <div align="left">
12     <font style="background-color: blue">显示界面  </font>
13     </div>
14 </body>
15 </html>

 1 <%@page import="com.Dao.*"%>
 2 <%@page import="com.Bean.*"%>
 3 <%@page import="org.apache.jasper.tagplugins.jstl.core.ForEach"%>
 4 <%@page import="java.util.ArrayList"%>
 5 <%@page import="java.util.List" %>
 6 <%@ page language="java" contentType="text/html; charset=utf-8"
 7     pageEncoding="utf-8"%>
 8     <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
 9 <!DOCTYPE html>
10 <html>
11 <head>
12 <meta charset="utf-8">
13 <title>课程浏览</title>
14 </head>
15 <script type="text/javascript">
16 function onload()
17 {
18     <%
19     Cookie[] cookies=request.getCookies();
20     String value="";
21     ArrayList<student> list=new ArrayList<>();
22     if(cookies!=null){
23         System.out.println("cookie的长度为:"+cookies.length);
24         for(int i=0;i<cookies.length;i++)
25         {
26             
27             if(cookies[i].getName().equals("student"))
28             {
29                 value=cookies[i].getValue();
30                 System.out.println(value+":");
31                 list=Dao.getstudent(value);
32             }
33         }
34     }
35     %>
36 }
37 </script >
38 <body onload="onload()">
39 <div align="center">
40 <h1>课程信息浏览：</h1>
41 
42 <form action="StudentServlet?method=show" method="post" onsubmit="return check()">
43 <table>
44 <tr>
45 <td>课程名称</td>
46 <td>任课教师</td>
47 <td>课程编号</td>
48 <td>课程人数</td>
49  <td align="center" colspan="1">操作</td>
50 </tr>
51 <c:forEach items="${list}" var="item">
52 <tr>
53  <td><a href="showclassinfo.jsp?name=${item.name}&teacher=${item.teacher}&pid=${item.pid}&number=${item.number}&count=${item.count}">${item.name}</a></td>
54  <td><a href="TeacherServlet?method=seacrch&name=${item.teacher}">${item.teacher}</a></td>
55  <td>${item.pid}</td>
56  <td>${item.number}</td>
57              <%for(student s:list) 
58             {
59                 
60             %>
61  <td><a href="StudentServlet?method=addclasses&name=${item.name}&studentid=<%=s.getId() %>&id=${item.pid}">选课</a></td>
62            <% } %>
63 </tr>
64 </c:forEach>
65 </table>
66 </form>
67 </div>
68 
69 </body>
70 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title></title>
 8 </head>
 9 <body>
10 <div align="center">
11 
12 <h1>课程详细信息查询</h1>
13 <table border="1">
14 <tr>
15 <td>课程名称</td>
16 <td>任课教师</td>
17 <td>课程编号</td>
18 <td>课程人数</td>
19 <td>选课人数</td>
20 </tr>
21 <tr>
22 <td>${param.name}</td>
23 <td>${param.teacher}</td>
24 <td>${param.pid}</td>
25 <td>${param.number}</td>
26 <td>${param.count}</td>
27 </tr>
28 </table>
29 </div>
30 
31 </body>
32 </html>

 1 <%@ page language="java" contentType="text/html; charset=utf-8"
 2     pageEncoding="utf-8"%>
 3     <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
 4 <!DOCTYPE html>
 5 <html>
 6 <head>
 7 <meta charset="utf-8">
 8 <title></title>
 9 </head>
10 <body>
11 <div align="center">
12 <h1>选课结果浏览：</h1>
13 
14 <form action="TeacherServlet?method=searchclass" method="post" onsubmit="return check()">
15 <table>
16 <tr>
17 <td>课程名称</td>
18 <td>已选课人数</td>
19 <td>课程总人数</td>
20  
21 </tr>
22 <c:forEach items="${list}" var="item">
23 <tr>
24  <td><a href="showclassinfo.jsp?name=${item.name}&teacher=${item.teacher}&pid=${item.pid}&number=${item.number}&count=${item.count}">${item.name}</a></td>
25  <td><a href="TeacherServlet?method=checkstudent&id=${item.pid}">${item.count}</a></td>
26  <td>${item.number}</td>
27  
28 </tr>
29 </c:forEach>
30 </table>
31 </form>
32 </div>
33 
34 </body>
35 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3     <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
 4 <!DOCTYPE html>
 5 <html>
 6 <head>
 7 <meta charset="UTF-8">
 8 <title></title>
 9 </head>
10 <body>
11 <div align="center">
12 <h1>学生信息浏览</h1>
13 <form action="TeacherServlet?method=checkstudent" method="post" >
14 <table border="1">
15 <tr>
16 <td>学生姓名</td>
17 <td>学生专业</td>
18 </tr>
19 
20 <c:forEach items="${list}" var="item">
21 <tr>
22 <td><a href="showstudentinfos.jsp?id=${item.id}&name=${item.name}&sex=${item.sex}&classes=${item.classes}&zhuanye=${item.zhuanye}">${item.name}</a></td>
23 <td>${item.zhuanye}</td>
24 </tr>
25 </c:forEach>
26 
27 </table>
28 </form>
29 </div>
30 
31 </body>
32 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title></title>
 8 </head>
 9 <body>
10 <div align="center">
11 
12 <h1>学生详细信息</h1>
13 <table border="1">
14 <tr>
15 <td>学生学号</td>
16 <td>学生姓名</td>
17 <td>学生性别</td>
18 <td>学生班级</td>
19 <td>学生专业</td>
20 </tr>
21 <tr>
22 <td>${param.id}</td>
23 <td>${param.name}</td>
24 <td>${param.sex}</td>
25 <td>${param.classes}</td>
26 <td>${param.zhuanye}</td>
27 </tr>
28 </table>
29 </div>
30 
31 </body>
32 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3     <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
 4 <!DOCTYPE html>
 5 <html>
 6 <head>
 7 <meta charset="UTF-8">
 8 <title></title>
 9 </head>
10 <body>
11 <div align="center">
12 <h1>教师信息浏览</h1>
13 <form action="TeacherServlet?method=seacrch" method="post" >
14 <table border="1">
15 <tr>
16 <td>教师工号</td>
17 <td>教师姓名</td>
18 <td>教师性别</td>
19 <td>所在院系</td>
20 <td>教师职称</td>
21 </tr>
22 
23 <c:forEach items="${list}" var="item">
24 <tr>
25 <td>${item.id}</td>
26 <td>${item.name}</td>
27 <td>${item.sex}</td>
28 <td>${item.xueyuan}</td>
29 <td>${item.zhicheng}</td>
30 </tr>
31 </c:forEach>
32 
33 </table>
34 </form>
35 </div>
36 
37 </body>
38 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>课程信息管理系统：学生界面</title>
 8 
 9 <style type="text/css">
10 
11 .headframe{
12     100%;
13     height:130px;
14     border:0;
15 }
16 
17 .leftframe{
18     float:left;
19     250px;
20     height:600px;
21     border:0;    
22 }
23 
24 .mainframe{
25     float:right;
26     1200px;
27     height:600px;
28     border:0;
29 }
30 
31 </style>
32 
33 <script type="text/javascript">
34 
35 
36 
37 </script>
38 
39 </head>
40 <body onload="onload()">
41 </body>
42 
43 <iframe src="head.jsp" class="headframe" scrolling="no"></iframe>
44 <iframe src="left1.jsp" class="leftframe" scrolling="no"></iframe>
45 <iframe src="main.jsp" name="mainAction" class="mainframe"></iframe>
46 
47 
48 </html>

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html>
 4 <html>
 5 <head>
 6 <meta charset="UTF-8">
 7 <title>课程信息管理系统：教师界面</title>
 8 
 9 <style type="text/css">
10 
11 .headframe{
12     100%;
13     height:130px;
14     border:0;
15 }
16 
17 .leftframe{
18     float:left;
19     250px;
20     height:600px;
21     border:0;    
22 }
23 
24 .mainframe{
25     float:right;
26     1200px;
27     height:600px;
28     border:0;
29 }
30 
31 </style>
32 
33 </head>
34 
35 
36 <iframe src="head.jsp" class="headframe" scrolling="no"></iframe>
37 <iframe src="left2.jsp" class="leftframe" scrolling="no"></iframe>
38 <iframe src="main.jsp" name="mainAction" class="mainframe"></iframe>
39 
40 
41 </html>

  1 <%@page import="com.Dao.*"%>
  2 <%@page import="com.Bean.*"%>
  3 <%@page import="org.apache.jasper.tagplugins.jstl.core.ForEach"%>
  4 <%@page import="java.util.ArrayList"%>
  5 <%@page import="java.util.List" %>
  6 <%@ page language="java" contentType="text/html; charset=UTF-8"
  7     pageEncoding="UTF-8"%>
  8 <!DOCTYPE html>
  9 <html>
 10 <head>
 11 <meta charset="UTF-8">
 12 <title>修改学生信息</title>
 13 
 14 <style type="text/css">
 15 
 16 /* .butn{ */
 17 /*     display:inline-block; */
 18 /*     padding: 8px 35px; */
 19 /*     background-color:#32CD32; */
 20 /*      color:white; */
 21 /*      border:none; */
 22 /*      text-align:center; */
 23 /*     text-decoration:none; */
 24 /*     border-radius:5px;     */
 25 /*     position:absolute; */
 26 /*      left:40px; */
 27 /*      top:95px; */
 28 /* } */
 29 
 30 </style>
 31 
 32 </head>
 33 <script type="text/javascript">
 34 function onload()
 35 {
 36     <%
 37     Cookie[] cookies=request.getCookies();
 38     String value="";
 39     ArrayList<student> list=new ArrayList<>();
 40     if(cookies!=null){
 41         System.out.println("cookie的长度为:"+cookies.length);
 42         for(int i=0;i<cookies.length;i++)
 43         {
 44             
 45             if(cookies[i].getName().equals("student"))
 46             {
 47                 value=cookies[i].getValue();
 48                 System.out.println(value+":");
 49                 list=Dao.getstudent(value);
 50             }
 51         }
 52     }
 53     %>
 54 }
 55 </script>
 56 <body onload="onload()">
 57 
 58 <div class="container">
 59     <section>
 60         <form action="StudentServlet?method=update" method="post" onsubmit="return check()">
 61             <%for(student s:list) 
 62             {
 63                 
 64             %>
 65             
 66             <span class="cname" style="background-color: red">学号</span>
 67             <input type="text" name="id" class="icname" placeholder="  class-name" id="id" readonly="readonly" value=<%=s.getId()%> >
 68             <br/>
 69             
 70             <span class="teacher">姓名</span>
 71             <input type="text" name="name" class="iteacher" placeholder="  teacher" id="name" value=<%=s.getName()%> >
 72             <br/>
 73             
 74             <span class="place">性别</span>
 75             <label><input type="radio" name="sex" id="sex" value="男">男</label>
 76                <label><input type="radio" name="sex" id="sex" value="女">女</label>
 77             <br/>
 78             
 79             
 80             
 81             <span class="place">班级</span>
 82             <input type="text" name="classes" class="iteacher" placeholder=" classes" id="classes" value=<%=s.getClasses() %>>
 83             <br/>
 84             
 85             
 86             <span class="place">专业</span>
 87             <input type="text" name="zhuanye" class="iteacher" placeholder="  zhuangye" id="zhuanye" value=<%=s.getZhuanye() %>>
 88             <br/>
 89             <% } %>
 90             <input type="submit" value="保存" class="butn">
 91             <br/>
 92         </form>
 93     </section>
 94 </div>
 95 
 96 <script type="text/javascript">
 97     
 98     
 99 </script>
100     
101 </body>
102 </html>

 1 <%@page import="com.Dao.*"%>
 2 <%@page import="com.Bean.*"%>
 3 <%@page import="org.apache.jasper.tagplugins.jstl.core.ForEach"%>
 4 <%@page import="java.util.ArrayList"%>
 5 <%@page import="java.util.List" %>
 6 <%@ page language="java" contentType="text/html; charset=UTF-8"
 7     pageEncoding="UTF-8"%>
 8 <!DOCTYPE html>
 9 <html>
10 <head>
11 <meta charset="UTF-8">
12 <title>修改教师信息</title>
13 
14 <style type="text/css">
15 
16 /* .butn{ */
17 /*     display:inline-block; */
18 /*     padding: 8px 35px; */
19 /*     background-color:#32CD32; */
20 /*      color:white; */
21 /*      border:none; */
22 /*      text-align:center; */
23 /*     text-decoration:none; */
24 /*     border-radius:5px;     */
25 /*     position:absolute; */
26 /*      left:40px; */
27 /*      top:95px; */
28 /* } */
29 
30 </style>
31 <script type="text/javascript">
32 function onload()
33 {
34     <%
35     Cookie[] cookies=request.getCookies();
36     String value="";
37     ArrayList<teacher> list=new ArrayList<>();
38     if(cookies!=null){
39         System.out.println("cookie的长度为:"+cookies.length);
40         for(int i=0;i<cookies.length;i++)
41         {
42             
43             if(cookies[i].getName().equals("teacher"))
44             {
45                 value=cookies[i].getValue();
46                 System.out.println(value+":");
47                 list=Dao.getteacher(value);
48             }
49         }
50     }
51     %>
52 }
53 </script>
54 
55 </head>
56 <body>
57 
58 <div class="container">
59     <section>
60         <form action="TeacherServlet?method=update" method="post" onsubmit="return check()">
61             <%for(teacher s:list) 
62             {
63                 
64             %>
65             <span class="cname">工号</span>
66             <input type="text" name="id" class="icname" placeholder="  class-name" id="id" readonly="readonly" value=<%=s.getId()%>>
67             <br/>
68             
69             <span class="teacher">姓名</span>
70             <input type="text" name="name" class="iteacher" placeholder="  teacher" id="name" value=<%=s.getName()%>>
71             <br/>
72             
73             <span class="place">性别</span>
74             <label><input type="radio" name="sex" id="sex" value="男">男</label>
75                <label><input type="radio" name="sex" id="sex" value="女">女</label>
76             <br/>
77             
78             <span class="place">学院</span>
79             <input type="text" name="xueyuan" class="iteacher" placeholder="  teacher" id="xueyuan" value=<%=s.getXueyuan()%>>
80             <br/>
81             
82             
83             <span class="place">职称</span>
84             <input type="text" name="zhicheng" class="iteacher" placeholder="  teacher" id="zhicheng" value=<%=s.getZhicheng()%>>
85             <br/>
86             <% } %>
87             <input type="submit" value="保存" class="butn">
88             <br/>
89         </form>
90     </section>
91 </div>
92 
93 <script type="text/javascript">
94     
95     
96 </script>
97     
98 </body>
99 </html>

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原文地址：https://www.cnblogs.com/cxy0210/p/12084639.html