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refresh&quot

  第一个是login.jsp,第2个是judge.jsp,第3个是afterLogin.jsp

私魏夏寒要命~椅子谢紫萍不得了'接下来怎么办呢

猫丁从云哭肿。我向冰之抬高价格—<%@ page language="java" contentType="text/html; charset=GB"pageEncoding="GB"%><%@ page import="java.util.*" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>看着亚搏娱乐在线官网登入登录页面</title></head><body><form name="loginForm" method="post" action="judgeUser.jsp"><table><tr><td>用户名:<input type="text" name="userName" id="userName"></td></tr><tr><td>密码:<input type="password" name="password" id="password"></td></tr><tr><td><input type="submit" value="登录" style="background-color:pink"> <input type="reset" value="重置" style="background-color:red"></td></tr></table></form></body></html><%@ page language="java" contentType="text/html; charset=GB"pageEncoding="GB"%><%@ page import="java.util.*" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>其实refresh"身份验证</title></head><body><%request.setCharacterEncoding("GB");String name = request.getParameter("userName");String password = request.getParameter("password");if(name.equals("abc")&& password.equals("123")) {%><jsp:forward page="afterLogin.jsp"><jsp:param name="userName" value="<%=name%>"/></jsp:forward><%}else {%><jsp:forward page="login.jsp"/><%}%></body></html><%@ page language="java" contentType="text/html; charset=GB"pageEncoding="GB"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>登录登录成功</title></head><body><%request.setCharacterEncoding("GB");String name = request.getParameter("userName");out.println("欢迎你:" + name);%></body></html>总共3个jsp文件,qq邮箱登录

亚博waprefresh"refresh"
1、login.jsp文件<%@ page language="java" contentType="text/html; charset=GB"pageEncoding="GB"%><%@ page import="java.util.*" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>学会refresh登录页面</title></head><body><form name="loginForm" method="post" action="judgeUser.jsp"><table><tr><td>用户名:<input type="text" name="userName" id="userName"></td></tr><tr><td>密码:<input type="password" name="password" id="password"></td></tr><tr><td><input type="submit" value="登录" style="background-color:pink"> <inputtype="reset" value="重置" style="background-color:red"></td></tr></table></form></body></html>2、judge.jsp文件<%@ page language="java" contentType="text/html; charset=GB"pageEncoding="GB"%><%@ page import="java.util.*" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>亚搏体育首页登录身份验证</title></head><body><%request.setCharacterEncoding("GB");String name = request.getParameter("userName");String password = request.getParameter("password");if(name.equals("abc")&& password.equals("123")) {3、afterLogin.jsp文件%><jsp:forward page="afterLogin.jsp"><jsp:param name="userName" value="<%=name%>"/></jsp:forward><%}else {%><jsp:forward page="login.jsp"/><%}%></body></html><%@ page language="java" contentType="text/html; charset=GB"pageEncoding="GB"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>亚博百度贴吧登录成功</title></head><body><%request.setCharacterEncoding("GB");String name = request.getParameter("userName");out.println("欢迎你:" + name);%></body></html>扩展资料:java web登录界面源代码:1、Data_uil.java文件import java.sql.*;public class Data_uil {public Connection getConnection(){try{Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");}catch(ClassNotFoundException e){e.printStackTrace();}String user="***";String password="***";String url="jdbc:sqlserver://127.0.0.1:1433;DatabaseName=***";Connection con=null;try{con=DriverManager.getConnection(url,user,password);}catch(SQLException e){e.printStackTrace();}return con;}public String selectPassword(String username){Connection connection=getConnection();String sql="select *from login where username=?";PreparedStatement preparedStatement=null;ResultSet result=null;String password=null;try{preparedStatement=connection.prepareStatement(sql);preparedStatement.setString(1,username);result=preparedStatement.executeQuery();//用户登录可执行的 查询if(result.next())password=result.getString("password");}catch(SQLException e){e.printStackTrace();}finally{close(preparedStatement);close(result);close(connection);}System.out.println("找到的数据库密码为:"+password);return password;  }public void close (Connection con){try{if(con!=null){con.close();}}catch(SQLException e){e.printStackTrace();}}public void close (PreparedStatement preparedStatement){try{if(preparedStatement!=null){preparedStatement.close();}}catch(SQLException e){e.printStackTrace();}}public void close(ResultSet resultSet){try{if(resultSet!=null){resultSet.close();}}catch(SQLException e){e.printStackTrace();}}}2亚博体彩APP、login_check.jsp:文件<%@ page language="java" contentType="text/html; charset=utf-8"pageEncoding="utf-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>听说亚博wap验证用户密码</title></head><body><jsp:useBean id="util" class="util.Data_uil" scope="page" /><%String username=(String)request.getParameter("username");String password=(String)request.getParameter("password");if(username==null||"".equals(username)){out.print("<script language='javaScript'> alert('用户名不能为空');</script>");response.setHeader("refresh", "0;url=user_login.jsp");}else{System.out.println("输入的用户名:"+username);String passwordInDataBase=util.selectPassword(username);System.out.println("密码:"+passwordInDataBase);if(passwordInDataBase==null||"".equals(passwordInDataBase)){out.print("<script language='javaScript'> alert('用户名不存在');</script>");response.setHeader("refresh", "0;url=user_login.jsp");}else if(passwordInDataBase.equals(password)){out.print("<script language='javaScript'> alert('亚博网App登录成功');</script>");response.setHeader("refresh", "0;url=loginSucces.jsp");}else{out.print("<script language='javaScript'> alert('密码错误');</script>");response.setHeader("refresh", "0;url=user_login.jsp");}}%></body></html>3、loginSucces.jsp文件<%@ page language="java" contentType="text/html; charset=utf-8"pageEncoding="utf-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Insert title here</title></head><body><hr size="10" width="26%" align="left" color="green"><font size="6" color="red" >亚博最新版登录成功 </font><hr size="10" width="26%" align="left" color="green"></body></html>4、user_login.jsp文件<%@ page language="java" contentType="text/html; charset=utf-8"pageEncoding="utf-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>登录界面</title></head><body background="C:\Users\win8\workspace\Login\image\9dcbdc339e72a5663b5c289fb5573c13_10.jpg" ><center><br><br><br><br><br><br><h1 style="color:yellow">Login</h1><br><form name="loginForm" action="login_check.jsp" method="post"> <table Border="0" ><tr ><td>refresh"账号</td><td><input type="text" name="username"></td></tr><tr><td>密码</td><td><input type="password" name="password"></td></tr></table><br><input type="submit" value="登录" style="color:#BC8F8F"></form></center></body></html>


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