AsyncTask中的POST請求錯誤

Question

我打電話是這樣的：

new asyncTaskPost().execute();

這是我的AsyncTask：

class asyncTaskPost extends AsyncTask<String, Void, Void> {

@Override
protected void onPreExecute() {
}

@Override
protected Void doInBackground(String... params) { <------ HERE ERROR!!!!!!
postMethod();
}

@Override
protected void onPostExecute(Void result) {
}

}

那個POST請求：

public static void postMethod()
{

HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://iwindroids.ru/test.php");
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);

nameValuePairs.add(new BasicNameValuePair("lal", "ss"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

HttpResponse response= httpclient.execute(httppost);
HttpEntity responseEntity = response.getEntity();
String serverResponse = EntityUtils.toString(responseEntity);
Log.i("server response is="+serverResponse,"");

} catch (ClientProtocolException e) {
    e.printStackTrace();
} catch (IOException e) {
}
}

提示什么問題protected Void doInBackground(String... params) {以及如何修復它？ 我在代碼中標記了一個錯誤

<------ HERE ERROR !!!!!!

謝謝！

Answer 1

沒有傳遞給doInbackground ，也需要一個return語句

@Override
protected Void doInBackground(Void... params) {
postMethod();
return null;
}

也改變

class asyncTaskPost extends AsyncTask<Void, Void, Void> {

Params，執行時發送給任務的參數類型。

檢查AsyncTask泛型類型@

http://developer.android.com/reference/android/os/AsyncTask.html