登录页面源码
㈠ 静态网页登录代码
最简单的一个html登录页面
就在<form action="">双引号里面填你需要跳转的页面比如1.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>MyHtml.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
</head>
<body>
<form action="">
<table align="center">
<tr>
<td>
用户名：
</td>
<td>
<input type="text" name="userName" />
</td>
</tr>
<tr>
<td>
密码：
</td>
<td>
<input type="password" name="password" />
</td>
</tr>
<tr>
<td>
<input type="submit" value="提交">
</td>
<td>
<input type="reset" value="重置" />
</td>
</tr>
</table>
</form>
</body>
</html>
㈡ html登陆界面代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>用户登录</title>
<script language="javascript" type="text/javascript" >
function x(){
if((a.name.value=="admin")&&(a.password.value=="admin")){
session.setAttribute("name",name);
response.sendRedirect("index.html");
}else{
alert('登录失败,请输入正确的用户名和密码！');
a.name.focus();
return false;
}
}
</script>
<style type="text/css">
.imgsub{
height: 33px;
width: 154px;
margin-top: 10px;
margin-left: 50px;
background:transparent;
}
input[type="text"]
{
width:150px;
margin-top:10px;
font-family: Verdana, Arial;
background:transparent;
}
input[type="password"]
{
width:150px;
margin-top:10px;
font-family: Verdana, Arial;
background:transparent;
}
input[type="submit"]
{
width:60px;
margin-left:35px;
display:block;
}
body {background-image: url(qui.jpg);}
</style>
</head>
<body>
<center>
<h2>学生信息管理系统</h2>
</center>
<center><br>
<form name="a" method="post" action="index.html" onsubmit="return x()">
账号：<input name="name" value="" type="text" size="16" ><br>
密码：<input name="password" value="" type="password" size="17" > <br>
<br> <input type="submit" class="imgsub" value="登录">
</form>
</center>
</body>
</html>
用户名和密码都是admin
㈢ 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>
(3)登录页面源码扩展阅读：
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>
㈣ 网页登录源代码
㈤ 用html代码编写一个简单的登陆界面
<!DOCTYPE html><html lang="zh-CN"><head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>登录</title>
<link href="css/bootstrap.min.css" rel="stylesheet"></head><body><nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="./">jsp作业</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li><a href="login.html">登录</a></li>
</ul>
</div>
</div></nav><div class="container">
<div class="row">
<div class="col-md-4">
</div>
<div class="col-md-4">
<form class="form-signin" target="submitFrame" method="post">
<h2 class="form-signin-heading">登录到jsp作业</h2>
<label for="inputEmail">Email</label>
<input type="email" id="inputEmail" class="form-control" placeholder="请输入Email" required autofocus><br>
<label for="inputPassword">密码</label>
<input type="password" id="inputPassword" class="form-control" placeholder="请输入密码" required>
<div class="checkbox">
<label>
<input type="checkbox" value="remember-me" checked="checked"> 记住密码 </label>
</div>
<button type="submit" class="btn btn-primary" id="btn-login">登录</button>
<a href="reg.html" class="btn btn-default">注册</a>
</form>
<iframe style="display: none;" name="submitFrame" src="about:blank"></iframe>
</div>
<div class="col-md-4">
</div>
</div>
<script src="js/jquery.min.js"></script></body></html>
㈥ html登录页面设计
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<link href="main.css" type="text/css" rel="stylesheet">
<title>登陆界面</title>
</head>
<body>
<div class="login_ico">
<img src="images/login_ico.png">
</div>
<div class="login_putin">
<ul>
<li><input type="text" ></li>
<li><input type="password" ></li>
</ul>
</div>
<div class="login_btn">
<input type="submit" value="登陆">
</div>
</body>
</html>
样式 ：
*{
margin:0;
padding:0;}
li{
list-style-type:none;
margin:0;
padding:0;}
a{
text-decoration:none;
color:#000;}
/*---------------------按钮-----------------------------*/
.login_putin ul li input{
margin: 0;
width:70%;
padding: 1em 2em 1em 5.4em;
-webkit-border-radius:.3em;
-moz-border-radius: .3em;
border: 1px solid #999;
}
.login_btn{
width:300px;
margin:40px auto 0 auto;
}
.login_btn input{
width:100%;
margin:0;
padding:.5em 0;
-webkit-border-radius:.3em;
-moz-border-radius: .3em;
border:#1263be solid 1px;
background:#1b85fd;
color:#FFF;
font-size:17px;
font-weight:bolder;
letter-spacing:1em;
}
.login_btn input:hover{
background:#1263be;
}
㈦ 这是登录页面的后台代码：
我感觉你的代码很清晰，位置也对（有一点，我觉得判断验证码应该在最先，不过这无所谓，不会影响程序）。是不是session丢失的问题，你可以这样试试，
<system.web>
<sessionState mode="StateServer" timeout="30"/>
</system.web>
并且手动启动服务ASP.NET State Service
还有你的母版页，我写都是在Init事件中判断session，因为一个页面套用了母版页后，顺序是这样的：先是普通页的init事件，然后母版页的init，普通页的load，母版页的load
，还有你的！ispostback，我也不太知道对不对，去掉试试。
如果还不行的话，那就不好意思了，小弟能力有限，就当我路过...
㈧ html网页设计：一个简单的登录界面代码！
大致形式应该是这样的：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>3</title>
</head>
<body>
<div align="center">
<form action="" name="myform">
<table>
<tr>
<td>用户名：</td>
<td><input type="text" id="user" /></td>
</tr>
<tr>
<td>密 码：</td>
<td><input type="text" id="password" /></td>
</tr>
<tr>
<td>验证码：</td>
<td align="left"><input type="text" size="5" id="code" /></td>
</tr>
</table>
</form>
<table>
<tr>
<td>
<input type="submit" value="提交" onclick=myfun_submit() />
</td>
<td>
<input type="submit" value="重置" onclick=myfun_reset() />
</td>
</tr>
</table>
</div>
<script type="text/javascript">
function myfun_submit(){
var user_val = document.getElementById("user").value;
var password_val = document.getElementById("password").value;
if(user_val==""){
alert("用户名不能为空！！");
}else if(password_val==""){
alert("密码不能为空！！！");
}
}
function myfun_reset(){
document.getElementById("user").value = "";
document.getElementById("password").value = "";
document.getElementById("code").value = "";
}
</script>
</body>
</html>
㈨ asp登录界面源代码
要是你要的话。我可以发一个文件给你。里面的内容是一本书的所有例子。包括有
“留言板、注册和登陆、Blog、小型论坛、新闻发布等等。”
都是ASP版的。只要你建好站点。复制相应的文件到你站点下就行了。
㈩ JAVA 中 GUI登录界面设计源代码
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class Login {
private JFrame frame = new JFrame("登录");
private Container c = frame.getContentPane();
private JTextField username = new JTextField();
private JPasswordField password = new JPasswordField();
private JButton ok = new JButton("确定");
private JButton cancel = new JButton("取消");
public Login(){
frame.setSize(300,200);
c.setLayout(new BorderLayout());
initFrame();
frame.setVisible(true);
}
private void initFrame() {
//顶部
JPanel titlePanel = new JPanel();
titlePanel.setLayout(new FlowLayout());
titlePanel.add(new JLabel("系统管理员登录"));
c.add(titlePanel,"North");
//中部表单
JPanel fieldPanel = new JPanel();
fieldPanel.setLayout(null);
JLabel l1 = new JLabel("用户名:");
l1.setBounds(50, 20, 50, 20);
JLabel l2 = new JLabel("密 码:");
l2.setBounds(50, 60, 50, 20);
fieldPanel.add(l1);
fieldPanel.add(l2);
username.setBounds(110,20,120,20);
password.setBounds(110,60,120,20);
fieldPanel.add(username);
fieldPanel.add(password);
c.add(fieldPanel,"Center");
//底部按钮
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout());
buttonPanel.add(ok);
buttonPanel.add(cancel);
c.add(buttonPanel,"South");
}
public static void main(String[] args){
new Login();
}
}