用GsonFormat解析数组形式的json串

他首先要转化一下类型，那要怎么转呢那就要用到一个方法了TypeToken

List<DataDataBean> data = gson.fromJson(json, new TypeToken<List<DataDataBean>>() {}.getType());
      //他要遍历取出他的值之后将他存到集和中去
      for (DataDataBean dataDataBean:data){
         List<DataDataBean.DataBean> dataBeen = dataDataBean.getData();
         if(dataBeen!=null){
            list.addAll(dataBeen);
            setAdapter();
            pullToRefreshList.onRefreshComplete();
            }
     }