后端开发|php教程
php,curl,模拟登录,正方教务系统
后端开发-php教程
代码如下
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$cookie_file = tempnam(./temp,cookie);$login_url = http://211.64.47.129/default_ysdx.aspx;$post_fields = \__VIEWSTATE=dDw1MjQ2ODMxNzY7Oz7xlHJHd0KfeVRA2p7BXNto118wbQ==&TextBox1=学号&TextBox2=密码;$ch = curl_init($login_url);curl_setopt($ch, CURLOPT_HEADER, 0);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt($ch, CURLOPT_POST, 1);curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);curl_exec($ch);curl_close($ch);$url=http://211.64.47.129/xs_main.aspx?xh=学号;$ch = curl_init($url);curl_setopt($ch, CURLOPT_HEADER, 0);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);$contents = curl_exec($ch);preg_match("/ (.*)/",$contents,$arr);echo $arr[1];curl_close($ch);
但是最后却回到了登录的界面，小白求大神解答
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回复内容：
代码如下
$cookie_file = tempnam(./temp,cookie);$login_url = http://211.64.47.129/default_ysdx.aspx;$post_fields = \__VIEWSTATE=dDw1MjQ2ODMxNzY7Oz7xlHJHd0KfeVRA2p7BXNto118wbQ==&TextBox1=学号&TextBox2=密码;$ch = curl_init($login_url);curl_setopt($ch, CURLOPT_HEADER, 0);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt($ch, CURLOPT_POST, 1);curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);curl_exec($ch);curl_close($ch);$url=http://211.64.47.129/xs_main.aspx?xh=学号;$ch = curl_init($url);curl_setopt($ch, CURLOPT_HEADER, 0);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);$contents = curl_exec($ch);preg_match("/ (.*)/",$contents,$arr);echo $arr[1];curl_close($ch);
但是最后却回到了登录的界面，小白求大神解答
根据楼主的要求, 配合我自己写的HttpClient的类, 编写的代码如下, 但因为没有测试账号, 所以测试时使用的账号和密码为test, 返回的结果是登陆失败, 楼主只需要修改代码里的账号和密码, 应该就可以了.
HTTP请求过程中的Cookie由HttpClient/CURL自动处理.
楼主发的代码应该是没问题的, 感觉应该是没有提交RadioButtonList1和Button1这两个数据.
还有那个__VIEWSTATE虽然看起来是固定的, 但为了保险期间, 还是应该从页面中获取到之后, 再提交登陆.
附代码:
ch = curl_init(); curl_setopt($this->ch, CURLOPT_USERAGENT, Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; QQDownload 685; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E));//UA curl_setopt($this->ch, CURLOPT_TIMEOUT, 40); curl_setopt($this->ch, CURLOPT_FOLLOWLOCATION, TRUE); curl_setopt($this->ch, CURLOPT_AUTOREFERER, true); curl_setopt($this->ch, CURLOPT_RETURNTRANSFER, TRUE); curl_setopt($this->ch, CURLOPT_COOKIEJAR, $cookie_jar); curl_setopt($this->ch, CURLOPT_COOKIEFILE, $cookie_jar); } function __destruct(){ curl_close($this->ch); } final public function setReferer($ref=\){ if($ref != \){ curl_setopt($this->ch, CURLOPT_REFERER, $ref); } } final public function Get($url, $header=false, $nobody=false){ curl_setopt($this->ch, CURLOPT_POST, false); curl_setopt($this->ch, CURLOPT_URL, $url); curl_setopt($this->ch, CURLOPT_HEADER, $header); curl_setopt($this->ch, CURLOPT_NOBODY, $nobody); return curl_exec($this->ch); } final public function Post($url, $data=array(), $header=false, $nobody=false){ curl_setopt($this->ch, CURLOPT_URL, $url); curl_setopt($this->ch, CURLOPT_HEADER, $header); curl_setopt($this->ch, CURLOPT_NOBODY, $nobody); curl_setopt($this->ch, CURLOPT_POST, true); curl_setopt($this->ch, CURLOPT_POSTFIELDS, http_build_query($data)); return curl_exec($this->ch); }}const Login_URL = http://211.64.47.129/default_ysdx.aspx;$http = new HttpClient(tempnam(./temp,cookie));$html = $http->Get(Login_URL);//先请求登陆页面, 获取 __VIEWSTATEpreg_match(/name="__VIEWSTATE" value="(.+?)"/, $html, $vs);if(count($vs) !== 2){ echo 获取viewstate失败; exit();}//构造登陆时的数据$data = array( \__VIEWSTATE=>$vs[1],//__VIEWSTATE TextBox1=>username,//修改此处的用户 TextBox2=>password,//和密码 RadioButtonList1=>学生,//以及身份类型 Button1=> 登录 );$html = $http->Post(Login_URL, $data);preg_match(/language=\javascript\>alert\(\(.+?)\\);/, $html, $err);//检测是否出错, 如果有出错, 则显示错误信息, 然后退出if(count($err) === 2){ echo $err[1]; exit();}$sn = 123123;//学号$html = $http->Get(http://211.64.47.129/xs_main.aspx?xh=. $sn);preg_match(/\s*(.*)/, $html, $result);var_dump($result);
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