Question

我正在尝试使用Android中的HttpClient从远程站点获取资源。我一直在尝试以下

public class Engine {

    public String test(){
        String engineUrl = "http://site/path"; //I used legit site and path here
        InputStream is = null;
        String result = "";
        try{
            HttpClient httpclient = new DefaultHttpClient();
            HttpGet req = new HttpGet(engineUrl);

            HttpResponse response = httpclient.execute(req);  <<----this
            //is = response.getEntity().getContent();

        }catch(Exception e){
            e.printStackTrace();
            Log.e("error", "err");
        }
        return result;
    }

每当我尝试执行给定的标记方法时，我都会收到错误。如果我不执行.execute（）方法，一切正常。

我的调用片段是：

public class mainFragment extends Fragment{
    View view = null;
    Context context = null;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        // TODO Auto-generated method stub
         view =  inflater.inflate(R.layout.fragment_main, container, false);
         context = getActivity().getApplicationContext();

         final TextView v = (TextView)view.findViewById(R.id.hello);

         Thread t = new Thread(){

            @Override
            public void run() {
                // TODO Auto-generated method stub
                Engine e = new Engine();
                v.setText(e.test());

            }

         };
         t.run();

         return view;
    }

}

非常感谢!!

谢谢大家，我想我解决了这个问题。我必须使用AsyncTask＆lt;＆gt;对于网络操作而言不是线程类。再次感谢

Answer 1

你不能打电话

v.setText(e.test())

在

run().

由于UI更改必须在UI线程中完成。试试

final String result = e.test():

runOnUiThread(new Runnable(){
private void run (){
v.setText(result);
}
}).

执行HttpClient GET android时出现Bufferoverflow错误

1 个答案: