javascript-html5-css3
diff --git a/‎nodejs/标准模块/http-reptile.js
Lines changed: 85 additions & 0 deletions b/‎nodejs/标准模块/http-reptile.js
Lines changed: 85 additions & 0 deletions
diff --git a/‎nodejs/标准模块/http.js renamed to ‎nodejs/标准模块/http-server.js b/‎nodejs/标准模块/http.js renamed to ‎nodejs/标准模块/http-server.js
@@ -0,0 +1,85 @@
+/**
+ * Created by chenhao on 15/6/7.
+ */
+
+var http = require('http');
+var url = 'http://www.imooc.com/learn/348';
+
+/*获取页面所有的html*/
+//http.get(url,function(res){
+//    var html='';
+//
+//    res.on('data',function(data){
+//        html+=data;
+//    });
+//
+//    res.on('end',function(){
+//        console.log(html);
+//    });
+//}).on('error',function(){
+//    console.log('获取课程出错');
+//});
+
+/*
+ * 获取页面部分数据
+ * ps:依赖第三方的cheerio模块(全局安装该模块会`Error: Cannot find module 'cheerio'`)
+ */
+var cheerio = require('cheerio');
+
+function filterChapters(html) {
+    var $ = cheerio.load(html),
+        chapters = $('.learnchapter'),
+        courseData = [];
+
+    chapters.each(function (item) {
+        var chapter = $(this),
+            chapterTitle = chapter.find('strong').text(),
+            videos = chapter.find('.video').children('li'),
+            chapterData = {
+                chapterTitle: chapterTitle,
+                videos: []
+            };
+
+        console.log(chapter.find('.video'));
+        videos.each(function (item) {
+            var video = $(this).find('.studyvideo'),
+                videoTitle = video.text(),
+                videoId = video.attr('href').split('video/')[1];
+
+            chapterData.videos.push({
+                videoTitle: videoTitle,
+                id: videoId
+            });
+        });
+        courseData.push(chapterData);
+    });
+    return courseData;
+}
+
+function printChapterInfo(courseData) {
+    courseData.forEach(function (item) {
+        var chapterTitle = item.chapterTitle;
+
+        console.log(chapterTitle + '\n');
+
+        item.videos.forEach(function (video) {
+            console.log('[' + video.id + ']' + video.videoTitle + '\n');
+        });
+    });
+}
+
+http.get(url, function (res) {
+    var html = '';
+
+    res.on('data', function (data) {
+        html += data;
+    });
+
+    res.on('end', function () {
+        var courseData = filterChapters(html);
+
+        printChapterInfo(courseData);
+    });
+}).on('error', function () {
+    console.log('获取课程出错');
+});