php 登陆动作详解

来源：互联网发布：3dsmax 安装mac 编辑：程序博客网时间：2024/05/23 15:05
<?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">
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