jsp第七周作业:4/14

用户表:  uid (主键,自动增长)   uname  upwd

使用分层实现注册。(必做)

使用分层实现登录。(选做)

 

1.登陆界面index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>
  
  <body  style="background:url(images/2.jpg)">
  <div class="contentArea">
    <form name="form1" method="post" action="control.jsp" >
        <table>
        
            <tr>    
                <td>用户名:</td>
                <td> <input type="text" name="uname" id="userName"  ></td>
            </tr>
            <tr>    
                 <td>输入登录密码:</td>
                <td><input type="password" name="upwd" id="pwd"></td>
            </tr>
            
            <tr>    
                <td colspan="2"><input type="submit" value="注册"></td>
            </tr>
        </table>
    </form>
  </body>
</html>

2.数据处理control.jsp

<%@page import="com.gd.dao.StuDao"%>
<%@page import="com.gd.bean.Stu"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    Stu s = new Stu();
    
    String uname = request.getParameter("uname");
    s.setUname(uname);
    String upwd = request.getParameter("upwd");
    s.setUpwd(upwd);
    
    StuDao sd=new StuDao();
    if(sd.addStu(s)>0){
        //跳转注册成功页面 
        request.getRequestDispatcher("welcome.jsp").forward(request,response);
    }else{
        //错误页面 
        request.getRequestDispatcher("no.jsp").forward(request,response);
    }
    
    
    
%>

2.注册成功界面welcome.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
 
</head>
<body>
 
<%
    String uname = (String) request.getSession().getAttribute("uname");
%>

<body  style="background:url(images/2.jpg)">
  <div class="contentArea">
   <h1 style="color: red">欢迎<%=uname%></h1><br>
   <h4 style="color: blue">哦耶,注册成功了呢-_-</h4><br>
</html>

 

3.注册失败界面no.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 
 
 
<html>
  <head>
   
  </head>
   
  <body  style="background:url(images/2.jpg)">
  <div class="contentArea">
  <h1>注册失败</h1><hr>
    <h2>点击重新<a href="index.jsp">注册</a></h2>
  </body>
</html>

 

4.src-pacage-com.gb.bean-class-Stu.java界面

package com.gd.bean;

public class Stu {
    private int uid;
    private String uname;
    private String upwd;
    //访问器
    public int getUid() {
        return uid;
    }
    public void setUid(int uid) {
        this.uid = uid;
    }
    public String getUname() {
        return uname;
    }
    public void setUname(String uname) {
        this.uname = uname;
    }
    public String getUpwd() {
        return upwd;
    }
    public void setUpwd(String upwd) {
        this.upwd = upwd;
    }
    //构造器
    public Stu(int uid, String uname, String upwd) {
        super();
        this.uid = uid;
        this.uname = uname;
        this.upwd = upwd;
    }
    public Stu() {
        super();
    }
    
    
    
    
    

}

 

5.src-pacage-com.gb.dao-class-StuDao.java界面

package com.gd.dao;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

import com.gd.bean.Stu;

public class StuDao {
    //学生数据访问类
    
    //添加学生
    public int addStu(Stu s){
        int i=0;
        
        try {
            //加载驱动
            Class.forName("com.mysql.jdbc.Driver");
            //建立连接
            Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/mysql", "root", "");            
            //写SQL语句
            String sql="insert into stu values(?,?,?)";            
            //执行
            PreparedStatement ps=con.prepareStatement(sql);
            ps.setInt(1, s.getUid());
            ps.setString(2, s.getUname());
            ps.setString(3, s.getUpwd());
            i=ps.executeUpdate();
            
            
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return i;
        
        
        
        
        
        
        
    }
    
    //删除学生
    
    //登录
    
    //查询全部
    
    //修改学生信息

}

 

 

 

 

 

posted @ 2021-04-18 18:46  喜欢晒完太阳的被子  阅读(24)  评论(0编辑  收藏  举报