jsp第七周
<%@ 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
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<%@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); } |
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package com.he.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 sid) { 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(); }} |
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package com.he.dao;import java.sql.Connection;import java.sql.DriverManager;import java.sql.PreparedStatement;import com.he.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/zdh", "root", "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; } // 登录 } |
