/**
  * 把数据层传过来的实体类封装成视图层尸体类(实现数据层和视图层的解耦)
  *
  * @param list
  * @return
  */
 private List<String> getStringListByExampleBeanList(List<ExampleBean> list) {
   List<String> result = new ArrayList<String>();
   for (ExampleBean b : list) {
     result.add(b.getContent());
   }
   return result;
 }
 @Override
 public List<ExampleBean> getSynTestData() throws Exception {
   // TODO Auto-generated method stub
   List<ExampleBean> list = new ArrayList<ExampleBean>();
   ExampleBean bean = new ExampleBean();
   bean.setContent("这是同步返回的消息");
   list.add(bean);
   return list;
 }