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HomeBackend DevelopmentPHP Tutorial模拟登陆正方教务系统,重定向一直解决不了〉

<?php$login_url='http://jwxt.nbut.cn/(gnqj51blynlz1k45ufftjgux)/default_ysdx.aspx';$user='11480010126';$password='tianyun';$RadioButtonList1='学生';$__VIEWSTATE='dDw1MjQ2ODMxNzY7Oz5PMj6WMeVIzgWyGp6TS4sLvnQtaA=='; $cookie_file = tempnam('./temp','cookie');$login_url = 'http://jwxt.nbut.cn/(gnqj51blynlz1k45ufftjgux)/default_ysdx.aspx';$post_fields = array($user,$password,$RadioButtonList1,$__VIEWSTATE);//传入参数$ch = curl_init($login_url);curl_setopt($ch, CURLOPT_HEADER, 0);//显示头部curl_setopt($ch, CURLOPT_POST, 1);//post传递$header[]='User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.116 Safari/537.36';curl_setopt($ch, CURLOPT_HTTPHEADER, $header);//模拟客户端curl_setopt($ch, CURLOPT_RETURNTRANSFER,0);//显示页面curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);//post传递值curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);//存入cookiecurl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);//允许重定向curl_exec($ch);curl_close($ch);     $url='http://jwxt.nbut.cn/(gnqj51blynlz1k45ufftjgux)/xs_main.aspx?xh='.$user;$ch = curl_init($url);curl_setopt($ch, CURLOPT_HEADER, 0);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);curl_setopt($ch, CURLOPT_POST, 1);$header[]='Referer:http://jwxt.nbut.cn/(gnqj51blynlz1k45ufftjgux)/default_ysdx.aspx';$header[]='User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.116 Safari/537.36';curl_setopt($ch, CURLOPT_HTTPHEADER, $header);curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);//读取cookieecho $contents;$contents = curl_exec($ch);curl_close($ch); ?>


回复讨论(解决方案)

在线等,拜托各位

返回 <script>alert('密码错误!!');</script>

这个网站没有使用 cookie 传递 sessionid 而是通过 url 传递的
所以你把这个写死是不行的:
http://jwxt.nbut.cn /(gnqj51blynlz1k45ufftjgux)/default_ysdx.aspx
而是应这样写

$url = 'http://jwxt.nbut.cn';$u = get_headers($url, 1);$login_url = 'http://jwxt.nbut.cn' . dirname($u['Location']) . '/default_ysdx.aspx';
另外提交的参数应是关联数组,而非下标数组
$post_fields = array(  'TextBox1' => $user = '11480010126',  'TextBox2' => 'tianyun',  'RadioButtonList1' => '学生',  '__VIEWSTATE' => 'dDw1MjQ2ODMxNzY7Oz5PMj6WMeVIzgWyGp6TS4sLvnQtaA==',  "Button1" => "  登录  ",);
注意:要使用 gbk 编码的

所以并不是重定向的问题,而是你根本就没有登录上去

用于现在返回的是 密码错误,所以无法再观察第二段 curl 的情况了

很多大学都用正方教务系统么?我们学校也是哎

2楼已经分析的很正确,我只作解释!
当输入网址http://jwxt.nbut.cn,服务端会重定向到一个网页,也就是在http://jwxt.nbut.cn后加上/随机串/default_ysdx.aspx,这个随机串存储到服务端的。所以你写死就是不正确的。
首先请求网址http://jwxt.nbut.cn。获取响应头中的Location,如图:


然后拼接你的url,再次访问http://jwxt.nbut.cn/Location/default_ysdx.aspx网址。这是一点。
2:查看源代码
提交的参数是关联数组,并非下表数组。
截部分图:




上面完成了!你就登录成功了。

我们学校也是这玩意==
但我用python写的时候怎么获取那个Location呢,谢谢

手动@二楼 @四楼

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