伴随微信的红火，微信公众平台成为许多开发者的下一个目标。笔者本身对于这种新鲜事物没有如此多的吸引力。但是最近有朋友帮忙开发微信公众平台中一个成绩查询的功能。于是便在空余时间研究了一番。
主要的实现步骤是，通过PHP的CURL技术模拟登陆目标网站，通过登陆的用户，获取到用户的成绩信息，使用正则表达式对数据进行抓取和存储，使用HTML技术对数据进行重新弄排版。
微信公众平台的功能就是通过浏览的目的来实现成绩查询。整体的技术实现就在于PHP的CURL技术。下面就随便找了一个文件，获取成绩。具体代码如下。
<HTML> <HEAD><TITLE>请您登录</TITLE> <script language="JavaScript"> function Judge() { var WebUserNO=document.all["WebUserNO"].value; if(WebUserNO=="") {alert("登录用户不能为空！"); document.all["WebUserNO"] .focus(); return false; } } </script> <META http-equiv=Content-Type content="text/html; charset=gb2312"> <STYLE type=text/css>TD { FONT-SIZE: 12px } p1 { FONT-SIZE: 12px } INPUT { FONT-SIZE: 12px } p2 { FONT-SIZE: 12px; LINE-HEIGHT: 14pt } p3 { FONT-SIZE: 14px } p4 { FONT-SIZE: 14px; LINE-HEIGHT: 14pt } p5 { FONT-SIZE: 16px } p6 { FONT-SIZE: 14px; LINE-HEIGHT: 180% } p7 { FONT-SIZE: 12px; COLOR: #136792; LINE-HEIGHT: 160% } BIG { FONT-SIZE: 18px } A:link { COLOR: #0000ff } A:visited { COLOR: #0000ff } A:hover { COLOR: #ff0000 } hand { CURSOR: hand; BACKGROUND-COLOR: rgb(208,207,192) } </STYLE> <!--style end--> <META content="MSHTML 6.00.2600.0" name=GENERATOR></HEAD> <BODY bgColor=#ffffff topMargin=7 marginheight="0" marginwidth="25"> <form name="LoginForm" method="post" action="qing.php"> <TABLE cellSpacing=0 cellPadding=0 width="100%" border=0> <TBODY> <TR> <TD bgColor=#e6e6e6 height=20></TD> <TD align=right bgColor=#e6e6e6> </TD> </TR></TBODY></TABLE><BR> <TABLE cellSpacing=0 cellPadding=1 width=492 align=center border=0> <TBODY> <TR> <TD> <TABLE borderColor=#c1eaff cellSpacing=0 cellPadding=20 width=474 align=center border=1> <TBODY> <TR> <TD><TABLE width=283 height="100" border=0 align=center cellPadding=0 cellSpacing=0> <tr> <td width="50" rowspan="4"> </td> <td align="left"> </td> </tr> <tr> <td height="22" align="left">用户名: <input name="WebUserNO" type="text" id="WebUserNO" size="12"></td> </tr> <tr> <td height="22" align="left">密 码: <input name="Password" type="password" id="Password" size="12"></td> </tr> <tr> <td height="22" align="left" valign="middle"><p>附加码: <input name="Agnomen" type="text" id="Agnomen" size="12"> </p> <p><A href="User_JSP/FuJiaMa.htm" target="_blank" ><img src="http://218.61.108.163/ACTIONVALIDATERANDOMPICTURE.APPPROCESS" width="60" height="20" alt="验证码说明" border="0"></a></p></td> </tr> <tr align="center"> <td colspan="2"><input type="image" border="0" name="submit" src="http://218.61.108.163/User_JSP/images/Logon.gif" width="37" height="18" onClick="javascript:return Judge();"> </td> </tr> <tr> <td colspan="2"><div align="center"><input name="applicant" type="hidden" value="ACTIONQUERYSTUDENTSCORE"></div></td> </tr> </TABLE> <br> </TD> </TR> </TABLE></TD></TR></TBODY></TABLE> </form> <BR> <BR> </BODY></HTML>
qing.php
<?php $cookie_file = tempnam('./temp','cookie'); $login_url = 'http://218.61.108.163/ACTIONQUERYSTUDENTSCORE.APPPROCESS'; $post_fields = 'WebUserNO=stuid&Password=passwd&Agnomen=code&applicant=ACTIONQUERYGRADUATESCHOOLREPORTBYSELF'; $ch = curl_init($login_url); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file); curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields); curl_exec($ch); curl_close($ch); $url='http://218.61.108.163/ACTIONQUERYGRADUATESCHOOLREPORTBYSELF.APPPROCESS'; $ch = curl_init($url); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0); curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file); $contents = curl_exec($ch); //正则表达式提取数据。 $match="|(<=<td>).*(?=</td>)|"; preg_match_all($match,$contents,$b); $abc = $b[0]; $abs = $b[1]; $abd = $b[1]; echo $abc; echo $abs; echo $abd; curl_close($ch); ?>
获取到成绩的界面
