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  • java7连接数据库 网页 添加学生信息测试

    石家庄铁道大学2019年秋季

      2018 课堂测试试卷(六)10分)

    课程名称: JAVA语言程序设计  任课教师 王建民        考试时间: 150 分钟  

    一、 考试要求:

     

    1登录账号:要求由612位字母、数字、下划线组成,只有字母可以开头;(1分)

    2登录密码:要求显示“• ”或“*”表示输入位数,密码要求八位以上字母、数字组成。(1分)

    3性别:要求用单选框或下拉框实现,选项只有“男”或“女”;(1分)

    4学号:要求八位数字组成,前四位为2018”开头,输入自己学号;(1分)

    5姓名:输入自己的姓名;

    5电子邮箱:要求判断正确格式xxxx@xxxx.xxxx;(1分)

    6点击“添加”按钮,将学生个人信息存储到数据库中。(3分)

    7可以演示连接上数据库。(2分)

     index.jsp:

    <%@ page language="java" contentType="text/html; charset=UTF-8"

        pageEncoding="UTF-8"%>

    <!DOCTYPE html>

    <html>

    <head>

    <meta charset="UTF-8">

    <title>注册</title>

    <!-- CSS样式 -->

    <style type="text/css">

    tr{height:30px;}

    th{70px;text-align:left;}

    </style>

    <!-- 结束 -->

    </head>

    <body >

    <h2 style="text-align:center">用户注册</h2>

    <form action="./AddServlet" method="post" onsubmit="return check()">

    <table style="align:center;margin:auto;" >

    <tr >

    <th >登录账号:</th>

    <td ><input  type="text" name="username"id="username" placeholder="请输入登录账号"></td>

    </tr>

    <tr>

    <th >登录密码:</th>

    <td><input  type="password" name="password"id="password"placeholder="请输入登录密码"></td>

    </tr>

    <tr >

    <th >性别:</th>

    <td><input type="radio" name="sex"id="sex" value="男" checked="checked"><input type="radio" name="sex"id="sex" value="女"></td>

    </tr>

    <tr >

    <th >姓名:</th>

    <td><input type="text" name="name"id="name"placeholder="请输入姓名"></td>

    </tr>

    <tr >

    <th >学号:</th>

    <td><input type="text" name="stunumber"id="stunumber"placeholder="请输入学号"></td>

    </tr>

    <tr >

    <th >电子邮件:</th>

    <td><input type="text" name="mail"id="mail"placeholder="请输入电子邮件"></td>

    </tr>

    <tr >

    <th >所在学校:</th>

    <td><input type="text" name="school"id="school"placeholder="请输入所在学校"></td>

    </tr>

    <tr >

    <th >所在系:</th>

    <td><input type="text" name="xi"id="xi"placeholder="请输入所在系"></td>

    </tr>

    <tr >

    <th >所在班级:</th>

    <td><input type="text" name="class1"id="class1"placeholder="请输入所在班级"></td>

    </tr>

    <tr >

    <th >入学年份:</th>

    <td><select name="stuyear"id="stuyear">

    <option value="2019届">2019届</option>

    <option value="2018届">2018届</option>

    <option value="2017届">2017届</option>

    <option value="2016届">2016届</option>

    </select></td>

    </tr>

    <tr >

    <th >生源地:</th>

    <td><input type="text" name="place"id="place"placeholder="请输入生源地"></td>

    </tr>

    <tr >

    <th >备注:</th>

    <td><input type="text" name="beizhu"id="beizhu"placeholder="无"></td>

    </tr>

    <tr >

    <td colspan="2"align="center"><input type="submit" value="注册" >

         

    <input type="reset" value="重置" ></td>

    </tr>

    </table>

    </form>

    <!-- 输入字段验证部分 -->

    <script type="text/javascript">

    function check(){

    var username=document.getElementById("username");

    var password=document.getElementById("password");

    var stunumber=document.getElementById("stunumber");

    var name=document.getElementById("name");

    var mail=document.getElementById("mail");

    var sReg = /[_a-zA-Zd-.]+@[_a-zA-Zd-]+(.[_a-zA-Zd-]+)+$/; //正则表达式

    //判断登陆账号位数

    if((username.value).length<6||(username.value).length>12){

    alert('请输入6到12位英文字母、数字和下划线,以英文字母开头');

    username.focus();

    return false;

    }

    //判断登陆账号是否包含汉字

    if(/.*[u4e00-u9fa5]+.*$/.test(username.value)){

    alert('用户名不能包含汉字');

    username.focus();

    return false;

    }

    //判断登陆账号是否以英文字母开头

    if(!isNaN(username.value[0])){

    alert('请以英文字母开头');

    username.focus();

    return false;

    }

    //判断登录密码位数

    if((password.value).length<8){

    alert('密码应为8位以上英文或数字');

    password.focus();

    return false;

    }

    //验证学号是否合法

    if((stunumber.value).length!=8)

    {

    alert('学号应为8位以2018为开头的数字');

    stunumber.focus();

    return false;

    }

    else if(stunumber.value[3]!=8)

    {

    alert('学号应为8位以2018为开头的数字');

    stunumber.focus();

    return false;

    }

    //判断姓名是否为空

    if(name.value==''){

    alert('姓名不能为空');

    name.focus();

    return false;

    }

    //判断电子邮件格式是否正确

    if(! sReg.test(mail.value)){

    alert('电子邮件格式错误');

    mail.focus();

    return false;

    }

    }

    </script>

    <!-- 验证结束 -->

    </body>

    </html>

    fail.jsp:

    <%@ page language="java" contentType="text/html; charset=UTF-8"

        pageEncoding="UTF-8"%>

    <!DOCTYPE html>

    <html>

    <head>

    <meta charset="UTF-8">

    <title>Insert title here</title>

    </head>

    <body>

    <h1 style="text-align:center;">添加失败</h1>

    <h1 style="text-align:center;"><a href="index.jsp">返回继续添加信息</a></h1>

    </body>

    </html>

    success.jps:

    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>Insert title here</title>
    </head>
    <body>
    <h1 style="text-align:center;">添加成功</h1>
    <h1 style="text-align:center;"><a href="index.jsp">返回继续添加信息</a></h1>
    </body>
    </html>

    Name.java:

    package com.login1.name;

    public class Name {

    private int id;

    private String username;

    private String password;

    private String sex;

    private String name;

    private String stunumber;

    private String mail;

    private String school;

    private String xi;

    private String class1;

    private String stuyear;

    private String place;

    private String beizhu;

    public int getId() {

    return id;

    }

    public void setId(int id) {

    this.id = id;

    }

    public String getUsername() {

    return username;

    }

    public void setUsername(String username) {

    this.username = username;

    }

    public String getPassword() {

    return password;

    }

    public void setPassword(String password) {

    this.password = password;

    }

    public String getSex() {

    return sex;

    }

    public void setSex(String sex) {

    this.sex = sex;

    }

    public String getName() {

    return name;

    }

    public void setName(String name) {

    this.name = name;

    }

    public String getStunumber() {

    return stunumber;

    }

    public void setStunumber(String stunumber) {

    this.stunumber = stunumber;

    }

    public String getMail() {

    return mail;

    }

    public void setMail(String mail) {

    this.mail = mail;

    }

    public String getSchool() {

    return school;

    }

    public void setSchool(String school) {

    this.school = school;

    }

    public String getXi() {

    return xi;

    }

    public void setXi(String xi) {

    this.xi = xi;

    }

    public String getClass1() {

    return class1;

    }

    public void setClass1(String class1) {

    this.class1 = class1;

    }

    public String getStuyear() {

    return stuyear;

    }

    public void setStuyear(String stuyear) {

    this.stuyear = stuyear;

    }

    public String getPlace() {

    return place;

    }

    public void setPlace(String place) {

    this.place = place;

    }

    public String getBeizhu() {

    return beizhu;

    }

    public void setBeizhu(String beizhu) {

    this.beizhu = beizhu;

    }

    public Name(int id, String username, String password, String sex, String name, String stunumber, String mail,

    String school, String xi, String class1, String stuyear, String place, String beizhu) {

    super();

    this.id = id;

    this.username = username;

    this.password = password;

    this.sex = sex;

    this.name = name;

    this.stunumber = stunumber;

    this.mail = mail;

    this.school = school;

    this.xi = xi;

    this.class1 = class1;

    this.stuyear = stuyear;

    this.place = place;

    this.beizhu = beizhu;

    }

    public Name(String username, String password, String sex, String name, String stunumber, String mail, String school,

    String xi, String class1, String stuyear, String place, String beizhu) {

    super();

    this.username = username;

    this.password = password;

    this.sex = sex;

    this.name = name;

    this.stunumber = stunumber;

    this.mail = mail;

    this.school = school;

    this.xi = xi;

    this.class1 = class1;

    this.stuyear = stuyear;

    this.place = place;

    this.beizhu = beizhu;

    }

    }

     DBUtil.java:

    package com.login1.util;

    import java.sql.Connection;

    import java.sql.DriverManager;

    import java.sql.ResultSet;

    import java.sql.SQLException;

    import java.sql.Statement;

    public class DBUtil {

        public static String db_url="jdbc:mysql://127.0.0.1:3306/javaweb?useUnicode=ture&"

                + "characterEncoding=utf8&serverTimezone=GMT&useSSL=false";

        public static String db_user="root";

        public static String db_password="123456";

        public static Connection getConn()

        {

            Connection conn=null;

            try

            {

                Class.forName("com.mysql.cj.jdbc.Driver");

                conn=DriverManager.getConnection(db_url,db_user,db_password);

                System.out.println("数据库连接成功");

            }catch(Exception e)

            {

                e.printStackTrace();

            }

            return conn;

        }

        public static void close (Statement state,Connection conn)

        {

            if(state!=null)

            {

                try

                {

                    state.close();

                    //System.out.println("state关闭");

                }catch(SQLException e)

                {

                    e.printStackTrace();

                }

            }

            if(conn!=null)

            {

                try

                {

                    conn.close();

                    //System.out.println("conn关闭");

                }catch(SQLException e)

                {

                    e.printStackTrace();

                }

            }

        }

        public static void close (ResultSet rs,Statement state,Connection conn)

        {

            if(rs!=null)

            {

                try

                {

                    rs.close();

                    //System.out.println("rs关闭");

                }catch(SQLException e)

                {

                    e.printStackTrace();

                }

            }

            if(state!=null)

            {

                try

                {

                    state.close();

                    //System.out.println("state关闭");

                }catch(SQLException e)

                {

                    e.printStackTrace();

                }

            }

            if(conn!=null)

            {

                try

                {

                    conn.close();

                    //System.out.println("conn关闭");

                }catch(SQLException e)

                {

                    e.printStackTrace();

                }

            }

        }

        public static void main(String[] args) {

         Connection conn = DBUtil.getConn();

    }

    }

    Dao.java:

    package com.login1.dao;

    import java.sql.Connection;

    import java.sql.SQLException;

    import java.sql.Statement;

    import com.login1.name.Name;

    import com.login1.util.DBUtil;

    public class Dao {

    //将数据添加到数据库

    public boolean add(Name login1)

        {

            Connection conn = DBUtil.getConn();

            Statement state = null;

            

            //添加的SQL语句,将信息录入到login1表中

            String sql="insert into login1(username,password,sex,name,stunumber,mail,school,xi,class1,stuyear,place,beizhu) values('"+login1.getUsername()+"','"+login1.getPassword()+"','"+login1.getSex()+"','"+login1.getName()+

                    "','"+login1.getStunumber()+"','"+login1.getMail()+"','"+login1.getSchool()+"','"+login1.getXi()+"','"+login1.getClass1()+"','"+login1.getStuyear()+"','"+login1.getPlace()+"','"+login1.getBeizhu()+"')";

            int a=0;

            try

            {

                state = conn.createStatement();

                a=state.executeUpdate(sql);

            }catch (SQLException e)

            {

                e.printStackTrace();

                return false;

            }finally

            {

                DBUtil.close(state,conn);

            }

            if(a>0)return true;

            else return false;

        }

    }

    AddServlet.java:

    package com.login.servlet;

    import java.io.IOException;

    import javax.servlet.ServletException;

    import javax.servlet.annotation.WebServlet;

    import javax.servlet.http.HttpServlet;

    import javax.servlet.http.HttpServletRequest;

    import javax.servlet.http.HttpServletResponse;

    import com.login1.dao.Dao;

    import com.login1.name.Name;

    /**

     * Servlet implementation class AddServlet

     */

    @WebServlet("/AddServlet")

    public class AddServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;

        Dao dao =new Dao();  

        /**

         * @see HttpServlet#HttpServlet()

         */

        public AddServlet() {

            super();

            // TODO Auto-generated constructor stub

        }

    /**

     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

     */

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    request.setCharacterEncoding("utf-8");

    String username=request.getParameter("username");

    String password=request.getParameter("password");

    String sex=request.getParameter("sex");

    String name=request.getParameter("name");

    String stunumber=request.getParameter("stunumber");

    String mail=request.getParameter("mail");

    String school=request.getParameter("school");

    String xi=request.getParameter("xi");

    String class1=request.getParameter("class1");

    String stuyear=request.getParameter("stuyear");

    String place=request.getParameter("place");

    String beizhu=request.getParameter("beizhu");

    Name login1 =new Name(username,password,sex,name,stunumber,mail,school,xi,class1,stuyear,place,beizhu);

    if(dao.add(login1))

    {

                request.getRequestDispatcher("success.jsp").forward(request,response);

    }

    else 

    {

                request.getRequestDispatcher("fail.jsp").forward(request,response);

            }

    }

    /**

     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)

     */

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    // TODO Auto-generated method stub

    doGet(request, response);

    }

    }

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  • 原文地址:https://www.cnblogs.com/zaixiachengxuyuan/p/11715683.html
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