php 登陆动作详解

<?php
 class LoginAction extends Action {
	 function index(){
		 $this->display();
	 }
	 
	 	   function do_login(){
		   //获取用户名和密码信息,和数据库中比对
		   // echo 111111111;
		   // dump($_POST);
		   // dump($_SESSION);
		   $username=$_POST['username'];
		   $password=$_POST['password'];
           $code=$_POST['code'];
		    if($_SESSION['verify']!==md5($code))
			{
			$this->error('验证码错误');
			}
			/* else
			{$this->show('登录成功');}
			 */
			$m=new Model('user');
			$where['username']=$username;
			
			//$where['password']=$password;
			
			$i=$m->where($where)->count();
		
			
			if ($i>0){$this->redirect('User/index');}
			else{$this->error('该用户不存在');};
			
		   
 }         
 
}
?>


///调用Login/index Login模块的index方法,登陆页面内容:
<!-- form 表单 table 表格 td 单元格 tr 行标签 -->

<!doctype html>
<html lang="en">
 <head>

  <meta name="Generator" content="EditPlus?">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
 
 <title>Document</title>

 
	
  <link rel='stylesheet' type='text/css' href='__PUBLIC__/Css/login.css'/>
   <link rel='stylesheet' type='text/css' href='__PUBLIC__/Css/basic.css'/>
   <script src="__PUBLIC__/Js/login.js"></script>
 </head>
 
 <body>
  <!doctype html>
<html lang="en">
 <head>

  <meta name="Generator" content="EditPlus?">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <title>Document</title>
 </head>
 <body>
 <center>
 <h1>中均运维管理平台</h1>
   <!--图片标签-->
<img class="img_bk" src="__PUBLIC__/Images/scan.jpg"/>
 </center>
 <!--表单提交-->
 <form action='__URL__/do_login' method='post' name="myForm">

<center>
<table cellspacing="0" cellpadding="0">

<tr>

<td class="td1">用户名:</td>
<td><input type="text" name="username"/></td>
<td class="td3"></td>
<tr/>

<tr>
<td class="td1">密码:</td>
<td><input type="password" name="password"/></td>
<td class="td3"></td>
<tr/>


<tr>
	<td class="td1">验证码:</td>
	<td>   <input type='text' name='code' /></td>
	<td class="td3"><img src="__APP__/Public/code" onclick='this.src=this.src+"?"+Math.random()'/></td>
</tr>

<center>
<tr>
	<td class="td1"></td>
	<!-- <td align="center" ><input type="submit" name="login" value="login" /></td> -->
	<td>
	<img src="__PUBLIC__/Images/login.jpg" onclick="login()"/>
	</td>
	<td class="td3"></td>
</tr>
<center/>
<center/>

 </form>

 </body>
</html>

 </body>
</html>


//__PUBLIC__/Js/login.js 调用的js来自,利用的login方法
 <script src="/thinkphp/Public/Js/login.js"></script>
 
 function login() {
    
	var ou=document.myForm.username;
	var op=document.myForm.password;
	var oc=document.myForm.code;
	
	if (ou.value==''||op.value==''||oc.value==''){
		alert ('用户名,密码或者验证码不能为空');
	}else{
		
		document.myForm.submit();
	}
}


POST 请求调用的方法:
__URL__/do_login

 <!--表单提交-->
 <form action='/thinkphp/index.php/Login/do_login' method='post' name="myForm">
 
 


 
 

posted @ 2016-04-29 19:45  czcb  阅读(166)  评论(0编辑  收藏  举报