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  • (MVC)javaBaen+jsp+servlet对数据的操作

    运用MVC对数据进行一些简单的处理，基本实现数据的增删改查，达到前端和后台的数据之间的交互。

    1.开始界面

     1 <%@page import="com.zdsofe.work.Student"%>
 2 <%@page import="java.util.List"%>
 3 <%@page import="com.zdsofe.work.ReadData"%>
 4 <%@ page language="java" contentType="text/html; charset=UTF-8"
 5     pageEncoding="UTF-8"%>
 6 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 7 <html>
 8 <head>
 9 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
10 <title>Insert title here</title>
11 <script type="text/javascript" src="../js/jquery-1.7.2.js"></script>
12 <script type="text/javascript">
13 function fun1() {
14     $(":checkbox").attr("checked","checked");
15 }
16   
17   function fun2() {
18       $(":checkbox").attr("checked",false);
19 }
20 
21 </script>
22 </head>
23 <body>
24 <% ReadData rd=new ReadData();
25  List<Student> list= rd.findInfo();
26 
27 %>
28 <form action="../MoreDeleteServlet" >
29 <table border="1">
30 <tr> <td colspan="4"><button type="button" onclick="fun1()">全选</button>
31         <button type="button" onclick="fun2()">全不选</button></td></tr>
32 <tr>       
33 <th>序号</th>
34 <th>名字</th>
35 <th>密码</th>
36 <th>操作</th>
37 </tr>
38 
39 
40 <%
41 for(int i=0;i<list.size();i++)
42 {
43     %>
44     <tr>
45     <td><%=list.get(i).getId()%></td>
46     <td><%=list.get(i).getUserName()%></td>
47     <td><%=list.get(i).getMima()%></td>    
48     <td>
49          <input type="checkbox" name="c" value="<%=list.get(i).getId()%>"/>
50          <a href="../servlet?userI=<%=list.get(i).getId()%>">修改</a>
51          <a href="../DeleteServlet?userI=<%=list.get(i).getId()%>">删除</a>       
52     </td>
53     </tr>    
54 <% 
55   }
56 
57 %>
58 <tr>
59     <td colspan="4"><a href="addData.jsp" style="text-decoration: none;">增加</a>                    
60                     <button type="submit">批量删除</button>
61     </td>
62     </tr>
63 </table>
64 </form>
65 <form action="../DimServlet">
66  <select name="se">
67  <option value="id">序号</option>
68  <option value="name">姓名</option>
69  </select>
70  <input type="text" name="in"/>
71  <button type="submit">模糊查询</button>
72 </form>
73 </body>
74 
75 </html>
    View Code

    2.增加数据的界面

     1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 7 <title>Insert title here</title>
 8 </head>
 9 <body>
10 <form action="../AddServlet" method="post">
11 
12 用户名：<input type="text" name="userName" ><br/>
13 密码：<input type="password" name="mima" ><br/>
14 ID:<input type="text" name="id" />
15 <button type="submit">提交</button>
16 
17 </form>
18 </body>
19 </html>
    View Code

    3.修改数据的界面

     1 <%@page import="com.zdsofe.work.Student"%>
 2 <%@ page language="java" contentType="text/html; charset=UTF-8"
 3     pageEncoding="UTF-8"%>
 4 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 5 <html>
 6 <head>
 7 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 8 <title>Insert title here</title>
 9 </head>
10 
11 <%
12 //获取用户信息
13    Student stu=(Student)session.getAttribute("user");
14 %>
15 <body>
16 
17 <form action="../EditServlet" method="post">
18 
19 用户名：<input type="text" name="userName" value="<%=stu.getUserName()%>"><br/>
20 密码：<input type="password" name="mima" value="<%=stu.getMima()%>"><br/>
21 ID:<input type="text" name="id" value="<%=stu.getId()%>"/>
22 <button type="submit">提交</button>
23 
24 </form>
25 
26 </body>
27 </html>
    View Code

    4.模糊查询后的界面

     1 <%@page import="com.zdsofe.work.Student"%>
 2 <%@page import="java.util.List"%>
 3 <%@page import="com.zdsofe.work.ReadData"%>
 4 <%@ page language="java" contentType="text/html; charset=UTF-8"
 5     pageEncoding="UTF-8"%>
 6 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 7 <html>
 8 <head>
 9 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
10 <title>Insert title here</title>
11 </head>
12 <% ReadData rd=new ReadData();
13    String se=session.getAttribute("se").toString();
14    String in=session.getAttribute("in").toString();
15    List<Student> list= rd.findDim(se,in);
16    
17 %>
18 <body>
19 <table border="1">
20 <tr>
21 <th>序号</th>
22 <th>名字</th>
23 <th>密码</th>
24 <th>操作</th>
25 </tr>
26 
27 <%
28 for(int i=0;i<list.size();i++)
29 {
30     %>
31     <tr>
32     <td><%=list.get(i).getId()%></td>
33     <td><%=list.get(i).getUserName()%></td>
34     <td><%=list.get(i).getMima()%></td>    
35     
36     <td>        
37         <a href="../servlet?userI=<%=list.get(i).getId()%>">修改</a>
38         <a href="../DeleteServlet?userI=<%=list.get(i).getId()%>">删除</a>       
39     </td>
40     </tr>
41     
42 <% 
43   }
44 
45  
46 %>
47 <tr>
48     <td colspan="4"><a href="addData.jsp">增加</a>                    
49                    
50     </td>
51     </tr>
52 </table>
53 </body>
54 </html>
    View Code

    5.连接数据库的工具类

     1 package com.zdsofe.util;
 2 
 3 import java.sql.Connection;
 4 import java.sql.DriverManager;
 5 import java.sql.SQLException;
 6 
 7 public class DBUtil {
 8     private static String DRIVER="com.mysql.jdbc.Driver";
 9     private static String URL="jdbc:mysql://localhost:3306/mysql";
10     private static String user="root";
11     private static String key="775297";
12     public static Connection conn;
13     
14     //加载驱动
15         static{
16             try {
17                 Class.forName(DRIVER);
18             } catch (ClassNotFoundException e) {
19                 e.printStackTrace();
20             }
21         }
22         //连接数据库
23         public static Connection getConnection(){
24          try {
25             conn = DriverManager.getConnection(URL, user, key);
26         } catch (SQLException e) {
27             e.printStackTrace();
28         }
29             return conn;
30         }
31 }
    View Code

    6.实体类

     1 package com.zdsofe.work;
 2 
 3 public class Student {
 4  public String id;
 5  public  String userName;
 6  public  String mima;
 7  
 8 public Student(String id, String userName, String mima) {
 9     super();
10     this.id = id;
11     this.userName = userName;
12     this.mima = mima;
13 }
14 
15 public Student(String userName, String mima) {
16     
17     this.userName = userName;
18     this.mima = mima;
19 }
20 
21 public Student() {
22     super();
23 }
24 
25 public String getId() {
26     return id;
27 }
28 public void setId(String id) {
29     this.id = id;
30 }
31 public String getUserName() {
32     return userName;
33 }
34 public void setUserName(String userName) {
35     this.userName = userName;
36 }
37 public String getMima() {
38     return mima;
39 }
40 public void setMima(String mima) {
41     this.mima = mima;
42 }
43  
44  
45  
46 
47 }
    View Code

    7.一些实现功能的静态方法

      1 package com.zdsofe.work;
  2 
  3 import java.sql.ResultSet;
  4 import java.sql.SQLException;
  5 import java.sql.Statement;
  6 import java.util.ArrayList;
  7 import java.util.List;
  8 
  9 import com.zdsofe.util.DBUtil;
 10 
 11 
 12 
 13 public class ReadData {
 14     
 15     //查询信息
 16     public static List<Student> findInfo() {
 17         List <Student>list=new ArrayList<>();
 18         //调用连接并创建SQL语句
 19         try {
 20             Statement stam= DBUtil.getConnection().createStatement();
 21             String sql="SELECT id,userName,mima FROM  denglu;";
 22             ResultSet rs=stam.executeQuery(sql);
 23             
 24             while(rs.next())
 25             {
 26                 String id=rs.getString("id");
 27                 String userName=rs.getString("userName");
 28                 String mima=rs.getString("mima");
 29                 Student stu=new Student(id,userName,mima);
 30                 list.add(stu);
 31             }
 32             
 33         } catch (SQLException e) {
 34             e.printStackTrace();            
 35         }
 36         
 37         return list;
 38     }
 39         
 40     
 41     //模糊查询    
 42     public static List<Student> findDim(String se,String in ) {
 43         List <Student>list=new ArrayList<>();
 44         
 45         if(se.equals("id"))
 46             {  //调用连接并创建SQL语句
 47               try {
 48                 Statement stam= DBUtil.getConnection().createStatement();
 49                 String sql="select * from denglu where id like '%"+in+"%'";                
 50                 ResultSet rs=stam.executeQuery(sql);                        
 51                 while(rs.next())
 52                 {
 53                     String id=rs.getString("id");
 54                     String userName=rs.getString("userName");
 55                     String mima=rs.getString("mima");
 56                     Student stu=new Student(id,userName,mima);
 57                     list.add(stu);
 58                 }
 59                 
 60             } catch (SQLException e) {
 61                 e.printStackTrace();            
 62             }
 63         }
 64         if(se.equals("name"))
 65         {
 66              try {
 67                     Statement stam= DBUtil.getConnection().createStatement();
 68                     String sql="select * from denglu where userName like '%"+in+"%'";
 69                     
 70                     ResultSet rs=stam.executeQuery(sql);
 71                     
 72                     while(rs.next())
 73                     {
 74                         String id=rs.getString("id");
 75                         String userName=rs.getString("userName");
 76                         String mima=rs.getString("mima");
 77                         Student stu=new Student(id,userName,mima);
 78                         list.add(stu);
 79                     }
 80                     
 81                 } catch (SQLException e) {
 82                     e.printStackTrace();            
 83                 }
 84         }
 85         
 86         return list;
 87     }
 88      /* 根据用户名查询用户信息
 89      * @param userName
 90      * @return
 91      */
 92     public static Student findUserByName(String id)
 93     {
 94         Student stu=null;
 95         //输出查询sql
 96         String sql = "select * from denglu t where t.id='"+id+"'";
 97         try {
 98             //调用连接并创建SQL语句
 99             Statement stam= DBUtil.getConnection().createStatement();            
100             ResultSet rs=stam.executeQuery(sql);        
101             if(rs.next())
102             {
103                 String i=rs.getString("id");
104                 String name=rs.getString("userName");
105                 String mima=rs.getString("mima");
106                 stu=new Student(i,name,mima);                      
107             }
108             
109         } catch (SQLException e) {
110             e.printStackTrace();
111             
112         }
113         return stu;
114     }
115     
116     /**
117      * 根据编码修改用户信息
118      * @param user
119      * @return
120      */
121     public static int update(Student stu)
122     {
123         //执行sql的结果
124         int result = 0;
125         //更新sql
126         
127         String sql = "update denglu t set t.userName='"+stu.getUserName()+"',t.mima = '"+stu.getMima()+"' where t.id ='"+stu.getId()+"'";
128         try {
129         Statement stam=    DBUtil.getConnection().createStatement();
130             result=stam.executeUpdate(sql);
131             
132         } catch (SQLException e) {
133             e.printStackTrace();
134         }
135         
136         
137         return result;
138     }
139 }
    View Code

    8.查询数据的servlet

     1 package com.zdsofe.work;
 2 
 3 import java.io.IOException;
 4 import java.sql.ResultSet;
 5 import java.sql.SQLException;
 6 import java.sql.Statement;
 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 import javax.servlet.http.HttpSession;
14 
15 import com.zdsofe.util.DBUtil;
16 
17 /**
18  * Servlet implementation class servlet
19  */
20 @WebServlet("/servlet")
21 public class servlet extends HttpServlet {
22     private static final long serialVersionUID = 1L;
23        
24     /**
25      * @see HttpServlet#HttpServlet()
26      */
27     public servlet() {
28         super();
29         // TODO Auto-generated constructor stub
30     }
31 
32     /**
33      * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
34      */
35     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
36         //解决乱码问题
37         request.setCharacterEncoding("utf-8");
38         response.setCharacterEncoding("utf-8");
39         response.setContentType("text/html charset=utf-8");
40         
41        //获取用户id：
42         String userI = request.getParameter("userI");
43         
44        //根据用户id查询某一条用户信息
45         Student stu=ReadData.findUserByName(userI);
46         HttpSession session = request.getSession();
47         session.setAttribute("user", stu);
48         session.setAttribute("title", "修改用户");
49         response.sendRedirect(request.getContextPath()+"/pages/edit.jsp");
50     }
51 
52     /**
53      * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
54      */
55    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
56                 
57         
58     }
59 
60 }
    View Code

    9..增加数据的servlet

     1 package com.zdsofe.work;
 2 
 3 import java.io.IOException;
 4 import java.sql.SQLException;
 5 import java.sql.Statement;
 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.zdsofe.util.DBUtil;
14 
15 /**
16  * Servlet implementation class AddServlet
17  */
18 @WebServlet("/AddServlet")
19 public class AddServlet extends HttpServlet {
20     private static final long serialVersionUID = 1L;
21        
22     /**
23      * @see HttpServlet#HttpServlet()
24      */
25     public AddServlet() {
26         super();
27         // TODO Auto-generated constructor stub
28     }
29 
30     /**
31      * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
32      */
33     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
34         // TODO Auto-generated method stub
35     }
36 
37     /**
38      * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
39      */
40     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
41         int i=0;
42         
43         //请求和响应页面的编码格式修改        
44         request.setCharacterEncoding("UTF-8");
45         response.setCharacterEncoding("utf-8");
46         response.setContentType("text/html charset=utf-8");
47         
48         String sql="insert into denglu values('"+request.getParameter("id")+"','"+request.getParameter("userName")+"','"+request.getParameter("mima")+"')";
49         try {
50             Statement stam=DBUtil.getConnection().createStatement();
51             i=stam.executeUpdate(sql);
52         } catch (SQLException e) {
53             e.printStackTrace();
54         }
55         if(i==1)
56         {
57             response.sendRedirect(request.getContextPath()+"/pages/student.jsp");
58         }
59     }
60 
61 }
    View Code

    10.删除数据的servlet

     1 package com.zdsofe.work;
 2 
 3 import java.io.IOException;
 4 import java.sql.SQLException;
 5 import java.sql.Statement;
 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.zdsofe.util.DBUtil;
14 
15 /**
16  * Servlet implementation class DeleteServlet
17  */
18 @WebServlet("/DeleteServlet")
19 public class DeleteServlet extends HttpServlet {
20     private static final long serialVersionUID = 1L;
21        
22     /**
23      * @see HttpServlet#HttpServlet()
24      */
25     public DeleteServlet() {
26         super();
27         // TODO Auto-generated constructor stub
28     }
29 
30     /**
31      * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
32      */
33     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
34 
35                 //获取要删除的用户ID
36                 String userId = request.getParameter("userI");
37                 //删除的sql语句
38                 String sql = "delete from denglu  where id = "+userId+"";
39                 
40             try {
41                 Statement stam=    DBUtil.getConnection().createStatement();
42                 stam.executeUpdate(sql);
43             } catch (SQLException e) {
44                 // TODO Auto-generated catch block
45                 e.printStackTrace();
46             }
47             response.sendRedirect(request.getContextPath()+"/pages/student.jsp");
48     }
49 
50     /**
51      * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
52      */
53     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
54         // TODO Auto-generated method stub
55     }
56 
57 }
    View Code

    11.模糊查询的servlet

     1 package com.zdsofe.work;
 2 
 3 import java.io.IOException;
 4 import java.sql.ResultSet;
 5 import java.sql.SQLException;
 6 import java.sql.Statement;
 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.zdsofe.util.DBUtil;
15 
16 /**
17  * Servlet implementation class DimServlet
18  */
19 @WebServlet("/DimServlet")
20 public class DimServlet extends HttpServlet {
21     private static final long serialVersionUID = 1L;
22        
23     /**
24      * @see HttpServlet#HttpServlet()
25      */
26     public DimServlet() {
27         super();
28         // TODO Auto-generated constructor stub
29     }
30 
31     /**
32      * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
33      */
34     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
35         
36         //请求和响应页面的编码格式修改       
37         request.setCharacterEncoding("UTF-8");
38         response.setCharacterEncoding("utf-8");
39         response.setContentType("text/html charset=utf-8");
40         
41         //获取输入的模糊数据        
42         String se=request.getParameter("se");        
43         String in=request.getParameter("in");
44         
45         ReadData.findDim(se,in);
46         request.getSession().setAttribute("se", se);
47         request.getSession().setAttribute("in", in);
48         
49        /* request.getRequestDispatcher("/pages/newStudent.jsp").forward(request, response);*/
50         response.sendRedirect(request.getContextPath()+"/pages/newStudent.jsp");
51     }
52     
53    
54     /**
55      * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
56      */
57     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
58 
59     }
60 
61 }
    View Code

    12.修改数据的servlet

     1 package com.zdsofe.work;
 2 
 3 import java.io.IOException;
 4 import java.lang.reflect.InvocationTargetException;
 5 import java.util.Enumeration;
 6 import java.util.HashMap;
 7 import java.util.Map;
 8 
 9 import javax.servlet.ServletException;
10 import javax.servlet.annotation.WebServlet;
11 import javax.servlet.http.HttpServlet;
12 import javax.servlet.http.HttpServletRequest;
13 import javax.servlet.http.HttpServletResponse;
14 
15 import org.apache.commons.beanutils.BeanUtils;
16 
17 /**
18  * Servlet implementation class EditServlet
19  */
20 @WebServlet("/EditServlet")
21 public class EditServlet extends HttpServlet {
22     private static final long serialVersionUID = 1L;
23        
24     /**
25      * @see HttpServlet#HttpServlet()
26      */
27     public EditServlet() {
28         super();
29         // TODO Auto-generated constructor stub
30     }
31 
32     /**
33      * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
34      */
35     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
36                 //请求和响应页面的编码格式修改
37                 
38                 request.setCharacterEncoding("UTF-8");
39                 response.setCharacterEncoding("utf-8");
40                 response.setContentType("text/html charset=utf-8");
41                 /*//获取表单中的所用控件name属性
42                 Enumeration<String> en = request.getParameterNames();
43                 Map<String, Object> mapObj = new HashMap<>();
44                 //实例化一个Student对象
45                 Student stu=new Student();
46                 while(en.hasMoreElements())
47                 {
48                     String rs = en.nextElement();
49                     mapObj.put(rs, request.getParameter("rs"));
50                 }
51                 try {
52                     BeanUtils.populate(stu, mapObj);
53                 
54                     
55                 } catch (IllegalAccessException | InvocationTargetException e) {
56                     e.printStackTrace();
57                 }*/
58                 String name=request.getParameter("userName");
59                 String mima=request.getParameter("mima");
60                 String id=request.getParameter("id");
61             
62                 Student stu=new Student(id,name,mima);
63                 //根据条件修改用户信息，调用执行sql方法
64                 
65                 int upResult = ReadData.update(stu);
66                 
67                 if(upResult==1)
68                 {
69                     response.sendRedirect(request.getContextPath()+"/pages/student.jsp");
70                 }
71             
72     }
73 
74     /**
75      * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
76      */
77     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
78         doGet(request, response);
79     }
80 
81 }
    View Code

    13.删除多个的servlet

     1 package com.zdsofe.work;
 2 
 3 import java.io.IOException;
 4 import java.sql.SQLException;
 5 import java.sql.Statement;
 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.zdsofe.util.DBUtil;
14 
15 /**
16  * Servlet implementation class MoreDeleteServlet
17  */
18 @WebServlet("/MoreDeleteServlet")
19 public class MoreDeleteServlet extends HttpServlet {
20     private static final long serialVersionUID = 1L;
21        
22     /**
23      * @see HttpServlet#HttpServlet()
24      */
25     public MoreDeleteServlet() {
26         super();
27         // TODO Auto-generated constructor stub
28     }
29 
30     /**
31      * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
32      */
33     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
34         
35         String[] id=request.getParameterValues("c");
36         
37         if(id.length>0)
38         {
39             for(int i=0;i<id.length;i++)
40             {
41                 //删除的sql语句
42                 String sql = "delete from denglu  where id = "+id[i]+"";
43                 try {
44                     Statement stam=    DBUtil.getConnection().createStatement();
45                     stam.executeUpdate(sql);
46                 } catch (SQLException e) {
47                     e.printStackTrace();
48                 }
49                 
50             }
51         }
52         response.sendRedirect(request.getContextPath()+"/pages/student.jsp");
53     }
54 
55     /**
56      * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
57      */
58     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
59         // TODO Auto-generated method stub
60     }
61 
62 }
    View Code
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  • 原文地址：https://www.cnblogs.com/zclqian/p/7263485.html
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