网站登录源码
① jsp登陆界面源代码
1、login.jsp文件
<%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%>
<%@ page import="java.util.*" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>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>
2、judge.jsp文件
<%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%>
<%@ page import="java.util.*" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>身份验证</title>
</head>
<body>
<%
request.setCharacterEncoding("GB18030");
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=GB18030"
pageEncoding="GB18030"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>登录成功</title>
</head>
<body>
<%
request.setCharacterEncoding("GB18030");
String name = request.getParameter("userName");
out.println("欢迎你:" + name);
%>
</body>
</html>
(1)网站登录源码扩展阅读：
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();//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、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" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>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('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" "http://www.w3.org/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" >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" "http://www.w3.org/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:Userswin8workspaceLoginimage\_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>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>
② 进入网站后台如何获得网站源码
进入网站后台是无法获得网站源码的，需要你登录网站的空间才可以获得源码
③ 求教网站登录之后的网页源码如何获取
wmf19990425
④ 易语言 获取网页源代码
先post登录网站再取回登录后源码 先抓post登录包
精益模块 网页源码=网页_访问（post地址，“POST”，post数据）
⑤ 易语言如何在网页登录的情况下获取网页源码
网页编码是utf你需要转换成gbk
⑥ 网站登录源代码怎莫看
在网站上点击鼠标右键出现：
点击查看原文件即可。
希望能够帮助你！
⑦ 谁有登录的网站源码
JSP登陆系统 源代码 很好的源代码
<!-- 该Login页面是一个简单的登录界面 -->
<!--
该JSP程序是用来测试与MySQL数据库的连接，
需要一个数据库：LearnJSP，和其中一个表：userinfo
表中有两个字段分别为：UserName varchar (20) not null,UserPwd varchar (20) not null
-->
<html>
<head>
<title>登录</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta http-equiv="Content-Language" content="ch-cn">
</head>
<body>
<!-- Form 用来提取用户填入并提交的信息-->
<form method="post" name="frmLogin" action="LoginServlet">
<h1 align="center">用户登录</h1><br>
⑧ 有什么源码可以实现要登陆之后才能显示一个网页，请直接附上源码和教程谢谢啦~
登录后建立Session 如：Session["User"]=用户名;
判断如果存在这个Session不为空则进入页面 if(Session["User"]!=null){Response.Redirect("LuRusysterm.aspx")} 否则提示登录
或者在WebConfig里配置表单验证 在System.web下添加
<authentication mode="Forms">
<forms loginUrl="LRperson.aspx" defaultUrl="LuRusysterm.aspx" name=".ASPNETFORMSTEST" protection="All" timeout="30" ></forms>
</authentication>
<authorization>
<deny users="?"/>
</authorization>
⑨ php网站登录注册源码
//login.php 负责处理用户登录与退出动作
if(!isset($_POST['submit'])){
exit('非法访问!');
}
$username = htmlspecialchars($_POST['username']);
$password = MD5($_POST['password']);
//包含数据库连接文件
include('conn.php');
//检测用户名及密码是否正确
$check_query = mysql_query("select uid from user where username='$username' and password='$password' limit 1");
if($result = mysql_fetch_array($check_query)){
//登录成功
$_SESSION['username'] = $username;
$_SESSION['userid'] = $result['uid'];
echo $username,' 欢迎你！进入 <a href="my.php">用户中心</a>
';
echo '点击此处 <a href="login.php?action=logout">注销</a> 登录！
';
exit;
} else {
exit('登录失败！点击此处 <a href="javascript:history.back(-1);">返回</a> 重试');
}
注：上述源码是在TP中的登录验证方法，供参考！！
⑩ 求网页登录注册源码
分5个文件：
1：登录页面 login.htm
<html>
<head>
<meta http-equiv="Content-Language" content="zh-cn">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>登录</title>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="33%" height="64" id="table1">
<form name="form" action="go.asp" method="post"><tr>
<td>用户名：<input name="user"></td>
</tr>
<tr>
<td>密 码：<input type="password" name="pwd"></td>
</tr>
<tr>
<td><input name="sub" value="登录" type="submit"></td>
</tr></form>
</table>
</body>
</html>
------------------------
2.数据库连接文件 conn.asp
<%set rs=server.createobject("adodb.recordset")
conn = "driver={Microsoft Access Driver (*.mdb)};DBQ="&server.mappath("data.mdb")
%>
-------------------------
3:登录检测页面 go.asp
<!-- #include file="conn.asp" -->
<%
pwd=request.Form("pwd")
set rs=server.createobject("adodb.recordset")
sql="select * from user where name='"&request.Form("user")&"'"
rs.open sql,conn,1,1
if rs.eof or rs.bof then'如果用户名不存在
response.Write"<script language=javascript>alert('请输入正确的用户名！');history.go(-1);</script>"
Response.End()
else
if rs("pwd")<>pwd then'如果密码不对
response.write "<script language=JavaScript>alert('密码有误！');history.back();</script>"
else
response.write("登录成功")'
end if
end if%>
-------------------------------
4。注册文件 add.asp
<!-- #include file="conn.asp" -->
<%
sql="select * from user where u_user='"&request.Form("user")&"'"
set rs=server.createobject("adodb.recordset")
rs.open sql,conn,1,3
if rs.BOF or rs.EOF then
rs.addnew
rs("name")=request.Form("user")
rs("pwd")=request.Form("pwd")
rs.update
rs.close
set rs=nothing
response.Write ("注册成功!")
else
rs.close
set rs=nothing
response.write ("此用户已被注册")
end if
%>
4。注册页面 re.htm
<html>
<head>
<meta http-equiv="Content-Language" content="zh-cn">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>注册</title>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="33%" height="64" id="table1">
<form name="form" action="add.asp" method="post"><tr>
<td>用户名：<input name="user" size="23"></td>
</tr>
<tr>
<td>密 码：<input name="pwd" size="23" id="pwd"></td>
</tr>
<tr>
<td><input name="sub" value="注册" type="submit"></td>
</tr></form>
</table>
</body>
</html>
将这几个文件和数据库“data.mdb”放在同一目录内
数据库建一个USER表
含name pwd 两个字段 文本类型
运行login.htm测试登录
运行re.htm测试注册