视频地址发掘抓取

视频地址挖掘抓取
//得到视频标题  
   public String getVideoTitle(String beginTitleStr,int beginTextNum,String endTitleStr){  
    int beginTitleNum =  videoStr.indexOf(beginTitleStr,beginTextNum)+beginTitleStr.length();  
    int endTitleNum = videoStr.indexOf(endTitleStr,beginTitleNum);  
    String videoTitle = new ToolsSubString().mySubString(videoStr,beginTitleNum,endTitleNum);         
    return videoTitle;  
   }  
 
//得到视频地址ID  
   public String getVideoId(String beginIdStr,int beginTextNum,String endIdStr){  
    int beginIdNum = videoStr.indexOf(beginIdStr,beginTextNum)+beginIdStr.length();  
    int endIdNum = videoStr.indexOf(endIdStr,beginIdNum);  
    String videoId = new ToolsSubString().mySubString(videoStr,beginIdNum,endIdNum);  
    return videoId;  
   }  
     
   //抓取土豆网视频信息的方法  
   public void catchTudouVideo(int neadCatchNum,String beginSearchVideoNumStr){  
    //抓取内容定位  
    String endSearchVideoNumStr = "</em>";  
    String beginTextStr = "<a class="inner" target="new";  
    String beginIdStr = "href="http://www.tudou.com/programs/view/";  
    String endIdStr = "/"";  
    String beginTitleStr = "title="";        
    String endTitleStr = """;  
    int beginTextNum = 0;  
      
    //得到搜索到视频个数，循环得到视频信息          
    int searchVideoNum = getVideoNum(neadCatchNum,beginSearchVideoNumStr, endSearchVideoNumStr);  
    for(int i=0;i<searchVideoNum;i++){  
        //内容定位  
        beginTextNum = videoStr.indexOf(beginTextStr,beginTextNum)+beginTextStr.length();  
          
        //得到视频信息  
        String videoTitle = getVideoTitle(beginTitleStr, beginTextNum, endTitleStr);  
        String videoId = getVideoId(beginIdStr, beginTextNum, endIdStr);                      
        String videoUrl = "http://www.tudou.com/v/"+videoId+"/v.swf";  
 
        //创建video对象保存视频信息，并添加到video集合，为存入数据库做准备  
        VideoEntity video = new VideoEntity(videoTitle,"土豆网",videoUrl);  
        videoList.add(video);  
    }  
   }