index
<%@ 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>
<script type="text/javascript">
function aaa() {
window.location = "registe.jsp";
}
</script>
<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>
<form action="dologin.jsp" method="post">
用户名:<input type="text" name="uname" value="小白" />
密码 : <input type="password" name="upwd" value="88888" /><br> <br>
<input type="button" value="注册" onclick="aaa()">
<input type="submit" value="登录">
</form>
</body>
</html>
registe
<%@ 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> <style type="text/css"> a { text-decoration: none; } img { height-line: 20px; height: 20px; width: 20px; } </style> <script type="text/javascript"> function a() { alert("注册成功,请您登录使用。"); } function b() { alert("您是否放弃注册!"); window.location = "index.jsp"; } function mycheck() { //判断用户名是否为空 if (form.newuser.value == "") { alert("用户名不能为空,请输入用户名!"); form.userName.focus(); return; } //判断密码是否为空 if (form.newpassword.value == "") { alert("密码不能为空,请输入密码!"); form.password.focus(); return; } //判断验证码是否为空 if (form.validationCode.value == "") { alert("验证码不能为空,请输入验证码!"); form.validationCode.focus(); return; } //判断验证码是否正确 if (form.validationCode.value != form.validationCode1.value) { alert("请输入正确的验证码!!"); form.validationCode.focus(); return; } form.submit(); } </script> <base href="<%=basePath%>"> <title>My JSP 'registe.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> <form action="doregiste.jsp" method="post"> <p> 用户名:<input type="text" name="newuser" placeholder="请设定您的用户名" /> </p> <p> 密码:<input type="text" name="newpassword" placeholder="请设定您的密码" /> </p> <p> 邮箱:<input type="text" name="newemail" placeholder="请输入您的可用邮箱邮箱" /> </p> <p> 验证码:<input type="text" name="validationCode" onKeyDown="if(event.keyCode==13){form.submit.focus();}" size="6"> <% int intmethod1 = (int) ((((Math.random()) * 11)) - 1); int intmethod2 = (int) ((((Math.random()) * 11)) - 1); int intmethod3 = (int) ((((Math.random()) * 11)) - 1); int intmethod4 = (int) ((((Math.random()) * 11)) - 1); //将得到的随机数进行连接 String intsum = intmethod1 + "" + intmethod2 + intmethod3 + intmethod4; %> <!-- 设置隐藏域,验证比较时使用--> <input type="hidden" name="validationCode1" value="<%=intsum%>"> <!-- 将图片名称与得到的随机数相同的图片显示在页面上 --> <img src="./images/<%=intmethod1%>.jpg"> <img src="./images/<%=intmethod2%>.jpg"> <img src="./images/<%=intmethod3%>.jpg"> <img src="./images/<%=intmethod4%>.jpg"><br> <br> </p> <input type="submit" value="注册" onclick="a()"> <input type="button" value="返回" onclick="b()"> </form> </body> </html>
doregiste
<%@page import="com.gd.entity.Users"%> <%@page import="com.gd.dao.UsersDao"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% request.setCharacterEncoding("utf-8"); String newuser = request.getParameter("newuser"); String newpassword = request.getParameter("newpassword"); String newemail = request.getParameter("newemail"); Users u = new Users(); u.setUsername(newuser); u.setPassword(newpassword); u.setEmail(newemail); UsersDao ud = new UsersDao(); ud.registea(u); request.getRequestDispatcher("index.jsp").forward(request, response); %>
UsersDao
package com.gd.dao; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import com.gd.entity.Users; public class UsersDao extends BaseDao { public boolean login(String uname, String upwd) throws SQLException { Connection conn = getConnection(); String sql = "select * from users where username=? and password=?"; PreparedStatement ps = conn.prepareStatement(sql); ps.setString(1, uname); ps.setString(2, upwd); ResultSet rs = ps.executeQuery(); if (rs.next()) { closeAll(conn, ps, rs); return true; } else { closeAll(conn, ps, rs); return false; } } public void registe(String uname, String upwd, String email) throws SQLException { Connection conn = getConnection(); String sql = "insert into users (username,PASSWORD,email) value (?,?,?)"; PreparedStatement ps = conn.prepareStatement(sql); ps.setString(1, uname); ps.setString(2, upwd); ps.setString(3, email); int row = ps.executeUpdate(); if (row == 1) { System.out.println("添加成功"); closeAll(conn, ps, null); } else { System.out.println("添加失败"); } } public void registea(Users users) throws SQLException { Connection conn = getConnection(); String sql = "insert into users (username,PASSWORD,email) value (?,?,?)"; PreparedStatement ps = conn.prepareStatement(sql); ps.setString(1, users.getUsername()); ps.setString(2, users.getPassword()); ps.setString(3, users.getEmail()); ps.executeUpdate(); closeAll(conn, ps, null); } // public static void main(String[] args) { // UsersDao ud=new UsersDao(); // try { // System.out.println(ud.login("tom", "456")); // } catch (SQLException e) { // // TODO Auto-generated catch block // e.printStackTrace(); // } // } // public static void main(String[] args) { // // UsersDao ud = new UsersDao(); // // try { // ud.registe("yuhang", "456", "1418612405"); // // } catch (SQLException e) { // // e.printStackTrace(); // } // // } }