自己写的RSS阅读器，总是报GaiException异常
以下是源码：public class MainActivity extends Activity {
public final String url = "http://feed.feedsky.com/yeeyan_top";
private InputSource inputSource;
//private RSSFeed rssFeed = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.showlistview);
getFeed(url);
//showListView();
}
private void showListView(RSSFeed rssFeed){
ListView listView = (ListView)findViewById(R.id.listView1);
if (rssFeed == null) {
setTitle("访问失败");
return;
}
List<Map<String, String>> dataList = rssFeed.getDataListView();
SimpleAdapter adapter = new SimpleAdapter(this, dataList, android.R.layout.simple_list_item_2
, new String[]{"title" , "UpdateTime"},
new int[]{R.id.textViewTitle , R.id.textViewUpdateTime});
listView.setAdapter(adapter);
}
private void getFeed(String URL_link){
MyAsyncTask myAsyncTask = new MyAsyncTask();
myAsyncTask.execute(URL_link);
}
public class MyAsyncTask extends AsyncTask<String, Integer, RSSFeed>{
@Override
protected RSSFeed doInBackground(String... params) {
// TODO Auto-generated method stub
MyContentHandler myContentHandler = new MyContentHandler();
try {
URL url = new URL(params[0]);
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
XMLReader reader = parser.getXMLReader();
reader.setContentHandler(myContentHandler);
InputSource source = new InputSource(url.openStream());
reader.parse(source);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
return myContentHandler.getRSSFeed();
}
@Override
protected void onPostExecute(RSSFeed result) {
// TODO Auto-generated method stub
showListView(result);
super.onPostExecute(result);
}
}
其中的MyContentHandler是用来解析RSS网站xml并把结果放到RSSFeed对象中保存，通过showListView函数把保存在RSSFeed对象中的数据显示在ListView中。
但在InputSource source = new InputSource(url.openStream());这一行上抛GaiException异常，有没有哪位高手晓得原因的？小弟新手，望指教。
补充：移动开发 , Android
