java利用htmlparser获取html中想要的代码具体实现

List<Mp3> mp3List = new ArrayList<Mp3>();
        try{
            Parser parser = new Parser(htmlStr);//初始化Parser，这里要注意导入包为org.htmlparser。这里参数有很多。这个地方我写的是提前获取好的html文本。也可以传入URl对象
            parser.setEncoding("utf-8");//设置编码机
            AndFilter filter =
                new AndFilter(
                              new TagNameFilter("div"),
                             new HasAttributeFilter("id","songListWrapper")
              );//通过filter找到div且div的id为songListWrapper

              NodeList nodes = parser.parse(filter);//通过filter获取nodes
              Node node = nodes.elementAt(0);
              NodeList nodesChild = node.getChildren();
              Node[] nodesArr = nodesChild.toNodeArray();
              NodeList nodesChild2 = nodesArr[1].getChildren();
              Node[] nodesArr2 = nodesChild2.toNodeArray();
              Node nodeul = nodesArr2[1];
              Node[] nodesli = nodeul.getChildren().toNodeArray();//解析出nodesli为想要的

           
              for(int i=2;i<nodesli.length;i++){
                  //System.out.println(nodesli[i].toHtml());
                  Node tempNode =  nodesli[i];
                  TagNode tagNode = new TagNode();//通过TagNode获得属性，只有将Node转换为TagNode才能获取某一个标签的属性
                  tagNode.setText(tempNode.toHtml());
                  String claStr = tagNode.getAttribute("class");//claStr为bb-dotimg clearfix  song-item-hook { 'songItem': { 'sid': '113275822', 'sname': '我的要求不算高', 'author': '黄渤' } }
                  claStr = claStr.replaceAll(" ", "");
                  if(claStr.indexOf("\\?")==-1){
                      Pattern pattern = Pattern.compile("[\\s\\wa-z\\-]+\\{'songItem':\\{'sid':'([\\d]+)','sname':'([\\s\\S]*)','author':'([\\s\\S]*)'\\}\\}");
                      Matcher matcher = pattern.matcher(claStr);
                      if(matcher.find()){
                          Mp3 mp3 = new Mp3();
                          mp3.setSid(matcher.group(1));
                          mp3.setSname(matcher.group(2));
                          mp3.setAuthor(matcher.group(3));
                          mp3List.add(mp3);
                          //for(int j=1;j<=matcher.groupCount();j++){
                              //System.out.print("   "+j+"--->"+matcher.group(j));
                          //}
                      }
                  }
                  //System.out.println(matcher.find());
              }

            }catch(Exception e){
                e.printStackTrace();
            }