android - 如果 http 调用失败或在 android 中无法访问，则终止或停止后台线程

Question

我在下面做，但如果服务器不可访问或不可用，它不会在 2-3 秒后将控制权交还给线程。完成请求会在 10-15 秒后打印。知道为什么。

public JSONArray makeHttpRequest(String url) {

    // Making HTTP request
    try {

        HttpParams httpParameters = new BasicHttpParams();
        // Set the timeout in milliseconds until a connection is established.
        // The default value is zero, that means the timeout is not used. 
        int timeoutConnection = 2000;
        HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
        // Set the default socket timeout (SO_TIMEOUT) 
        // in milliseconds which is the timeout for waiting for data.
        int timeoutSocket = 2000;
        HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);

        DefaultHttpClient httpClient = new DefaultHttpClient(httpParameters);           

        HttpPost httpPost = new HttpPost(url);
        HttpResponse httpResponse = httpClient.execute(httpPost);
                    Log.d("error_trace", "Done making request");
        HttpEntity httpEntity = httpResponse.getEntity();
        is = httpEntity.getContent();

    } catch (Exception e) {
        e.printStackTrace();
        errorFlag = true;
    }