<%@ 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 'register.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="do.jsp" method="post"> 用户名:<input type="text" name="uname" /><Br> 密码 ：<input type="password" name="upwd" /><br> email：<input type="text" name="uemail" /><br> <input type="submit" value="确认"> </form> </body> </html>
<%@ 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> <script type="text/javascript"> function mycheck() { //判断验证码是否为空 if (form1.validationCode.value==""){ alert("验证码不能为空，请输入验证码!"); form1.validationCode.focus(); return; } //判断验证码是否正确 if (form1.validationCode.value != form1.validationCode1.value) { alert("请输入正确的验证码!!"); form1.validationCode.focus(); return; } form1.submit1(); } </script> <body> <form action="dologin.jsp" method="post"> 用户名:<input type="text" name="uname" value="kitty" /><Br> 密码 ：<input type="password" name="upwd" value="777"/><br> <br> 验证码：<input type="text" name="validationCode" onKeyDown="if(event.keyCode==13){form1.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%>.png"> <img src="images/<%=intmethod2%>.png"> <img src="images/<%=intmethod3%>.png"> <img src="images/<%=intmethod4%>.png"> <br> <input type="submit" value="登录"> <a href="register.jsp">注册</a> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <%@page import="com.gd.entity.Users"%> <%@page import="com.gd.entity.Msg"%> <%@page import="com.gd.dao.MsgDao"%> <%@page import="com.gd.dao.UsersDao"%> <% 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 'do.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> <% request.setCharacterEncoding("utf-8"); Users a=new Users(); String uname = request.getParameter("uname"); String upwd = request.getParameter("upwd"); String email = request.getParameter("uemail"); a.setUsername(uname); a.setPassword(upwd); a.setEmail(email); UsersDao as=new UsersDao(); as.addUsers(a); request.getRequestDispatcher("index.jsp").forward(request, response); %> </body> </html>
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 { // 登录功能 public boolean login(String uname, String upwd) throws SQLException { // 获取连接 Connection conn = getConnection(); // 编写sql语句 String sql = "select * from users where username=? and password=?"; // 执行sql语句 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 addUsers(Users users) { try { Connection con = getConnection(); String sql = "insert into users(username,password,email) values(?,?,?);"; PreparedStatement ps = con.prepareStatement(sql); ps.setString(1, users.getUsername());// 给sql语句的问号赋值 ps.setString(2, users.getPassword()); ps.setString(3, users.getEmail()); ps.executeUpdate(); closeAll(con, ps, null); } catch (SQLException ex) { ex.printStackTrace(); } } // 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(); // } // } }
