android - android 在没有 AsyncTask 的情况下执行 HTTP 请求？

Question

我的应用程序从服务器获取多 Json 信息

旨在寻找任何方式来执行Http请求AsyncTask，有没有办法做到这一点，或者我必须继续使用AsyncTask从服务器获取 Json 信息？

Answer 1

我建议看看Android Asynchronous Http Client (Loopj) library。这是一个“典型”http 请求的示例。

AsyncHttpClient client = new AsyncHttpClient();
client.get("http://www.google.com", new AsyncHttpResponseHandler() {
    @Override
    public void onSuccess(String response) {
        System.out.println(response);
    }
});

Answer 2

这就是你可以做到的

public class RequestClient extends AsyncTask<String, Void, String>{
    Context context;

    public RequestClient(Context c) {
        context = c;
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
    }

    @Override
    protected String doInBackground(String... aurl){
    String responseString="";
    HttpClient client = null;
    try {
         client = new DefaultHttpClient();  
         HttpGet get = new HttpGet(LoginActivity.url);
         HttpResponse responseGet = client.execute(get);  
         HttpEntity resEntityGet = responseGet.getEntity();  
         if (resEntityGet != null) {  
             responseString = EntityUtils.toString(resEntityGet);
             Log.i("GET RESPONSE", responseString.trim());
         }
    } catch (Exception e) {
        Log.d("ANDRO_ASYNC_ERROR", "Error is "+e.toString());
    }
        Log.d("ANDRO_ASYNC_RESPONSE", responseString.trim());
        client.getConnectionManager().shutdown();
     return responseString.trim();

    }


    @Override
    protected void onPostExecute(String response) {
         super.onPostExecute(response); 
        }
}

你必须从主类中调用它

RequestClient reqClient = new RequestClient(this);
reqClient.execute().get();