我们知道了通过发送get请求来进行手动刷课的原理，但是这显然还是不够方便。而且虽然我们知道了发送的包，但是我们并不知道这些数据从何而来。这是一个问题。
继续查看源码，终于在头信息里发现他引用了一个叫StudentLearning.js文件，介绍了整个系统运行的逻辑。其中有一个非常重要的函数：
代码语言：javascript复制//视频学习表
function GetStudentstudy() {
if (Isfull != true) {
if ($(".item_odd1").attr("kid") != "") {
noteTime = parseInt(jwplayer("div_play").getPosition());
$.ajax({ url: 'StudentLearning.ashx?action=GetG2SSetStageLearnPartStudent&fPlanID=' $(".item_odd1").attr("FBI") '&fPartID=' $(".item_odd1").attr("kid") "&fSecond=" noteTime, cache: false,
success: function(data) {
}
});
}
}
}看到了我们之前用的地址了，这里他用ajax技术向后台传输那些数据，fPlanID、fPartID、fSecond这些东西就来自于这里了。
其中的fPlanID的值很明显就是课程的URL:http://kczx.suda.edu.cn/G2S/Learning/Learning.htm?Part=&Plan=34&type=2里的Plan值了。那么fPartID该怎么得到呢？
在StudentLearning.js中找了一下，又发现了一个函数：
代码语言：javascript复制function GetList(type) {
var flagqimokaoshi = 1;
var locktiaozhuan = 0;
var fPlanID = request("Plan");
var flagPartID = request("Part");
var flagisLmitNum = 0;
$.ajax({ url: 'StudentLearning.ashx?action=GetG2SStageLearnGetChapter&fPlanID=' fPlanID, cache: false, async: false,
success: function(data) {
if (data != "False") {
data = data.replace(/[rn]/g, "\r\n");
var json = eval("(" data ")");
var strHtml = "";
var flagParent = 0;
var flagPart = 1;
if (json.Rows.length > 0) {
strHtml = " <ul class='catalogue_ul1' id='chapterList'>";
for (var i = 0; i < json.Rows.length; i ) {
var rows = json.Rows[i];
var fPartID = rows.fPartID;
var fPartName = rows.fPartName;
var fParentID = rows.fParentID;
var fVideoURL = rows.fVideoURL;
var zhuangtai = 0;
var fpartvideourl = rows.fpartvideourl;
var fCCPWebSiteID = rows.fCCPWebSiteID;
var fSchoolWork_ExamID = "";
fSchoolWork_ExamID = rows.fSchoolWork_ExamID;
var fVideoFileID = rows.fVideoFileID;
var fIsCrossChapter = rows.fIsCrossChapter; //是否跨章
var fStatus = rows.fStatus; //测试状态
var fSecond = rows.fSecond; //已读视频(秒)
var fContent = rows.fContent;
var fstudyStatus = rows.fstudyStatus; //学习状态
var fBuildMode = rows.fBuildMode; //作业状态 1 指定试卷 2 题库选题 3 直接出题
var fvideoSecond = rows.fvideoSecond; //视频总时长(秒)
var fxuexi = rows.fxuexi;
var qimokaishi = rows.qimokaishi; //期末考试
var qimofBuildMode = rows.qimofBuildMode;
var qimofCCPWebSiteID = rows.qimofCCPWebSiteID;
var weixuexi = rows.weixuexi; //是否学习 1已学 2 未学
var fisTest = rows.fisTest;
var fTaskID = rows.fTaskIDs;
var fisLmitNum = rows.fisLmitNum;
var MustFileIsFinish=rows.MustFileIsFinish;//资料学习情况 1:已完成学习 0:未完成
var flagyangshi = "time_ico1 unPlay ";
var icoTest = "";
var ficoTestTitle = "";
if (weixuexi == 1) {
zhuangtai = 1;
} else {
zhuangtai = 0;
}
......名字叫GetList，那么意图也就很明显了，就是得到课程列表的所有信息。用ajax向后台传入课程名，然后就会得到一大串的关于整个课程信息的回复。尝试了发送下，得到如下类似json格式的反馈：
代码语言：javascript复制{
RowCount: 34,
Rows: [
{
"fPartID": "264",
"fPartName": " 大学文化——大学的内涵与使命",
"fParentID": "0",
"fPlanID": "34",
"fBrief": "",
"fVideoFileID": "0",
"fSchoolWork_ExamID": "3172",
"fCCPWebSiteID": "27745",
"fBuildMode": "3",
"fpartvideourl": "",
"fStatus": "20",
"fSecond": "5953",
"fvideoSecond": "5953",
"fVideoURL": "",
"fContent": "",
"fOrder": "100",
"fIsCrossChapter": "1",
"qimokaishi": "5919",
"qimofBuildMode": "3",
"qimofCCPWebSiteID": "27745",
"qimoStatus": "1",
"fstudyStatus": "1",
"fxuexi": "0",
"weixuexi": "1",
"fisTest": "1",
"MustFileIsFinish": "0",
"fTaskID": "0",
"fisLmitNum": "-1"
},
{
"fPartID": "265",
"fPartName": " 大学文化——大学的内涵与使命（一）",
"fParentID": "264",
"fPlanID": "34",
"fBrief": "内容描述（最多200字）",
"fVideoFileID": "651",
"fSchoolWork_ExamID": "",
"fCCPWebSiteID": "",
"fBuildMode": "-1",
"fpartvideourl": "http://42.244.42.193:1221/download/38d2e715-2044-429d-b29d-89b964863a81.mp4",
"fStatus": "",
"fSecond": "1756",
"fvideoSecond": "1756",
"fVideoURL": "",
"fContent": "",
"fOrder": "101",
"fIsCrossChapter": "1",
"qimokaishi": "5919",
"qimofBuildMode": "3",
"qimofCCPWebSiteID": "27745",
"qimoStatus": "1",
"fstudyStatus": "1",
"fxuexi": "0",
"weixuexi": "1",
"fisTest": "1",
"MustFileIsFinish": "1",
"fTaskID": "0",
"fisLmitNum": "-1"
},
.......说他是类json格式，是因为他的RowCount和Rows没有加引号。。。。也是无语。。。
我们发现想要得到的信息几乎全在这里，通过他的命名也很容易看懂其表示的含义。
OK，到现在我们已经知道了所有想要的信息和业务的逻辑了，剩下的就是将这个思想付诸实现了。
