Volley请求队列超时

Question

RequestQueue mRequestQueue = Volley.newRequestQueue(getApplicationContext());
mRequestQueue.add(new JsonObjectRequest(Method.GET, cityListUrl, null, new Listener<JSONObject>() 
{
    public void onResponse(JSONObject jsonResults) 
    {
        //Any Call
    }
}, new ErrorListener()
   {
        public void onErrorResponse(VolleyError arg0) 
        {
            //Any Error log
        }
   }
));

这是我的请求调用，我想更改或设置请求的超时时间。有没有任何可能？

- Rizvan

Answer 1

你应该设置请求的RetryPolicy：

myRequest.setRetryPolicy(new DefaultRetryPolicy(
                MY_SOCKET_TIMEOUT_MS, 
                DefaultRetryPolicy.DEFAULT_MAX_RETRIES, 
                DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));

这将改变您的代码为：

RequestQueue mRequestQueue = Volley.newRequestQueue(getApplicationContext());
JsonObjectRequest request = new JsonObjectRequest(Method.GET, cityListUrl, null, new
    Listener<JSONObject>() {
        public void onResponse(JSONObject jsonResults) {
            //Any Call
        }
    }, new ErrorListener(){
        public void onErrorResponse(VolleyError arg0) {
            //Any Error log
        }
    }
);


int socketTimeout = 30000;//30 seconds - change to what you want
RetryPolicy policy = new DefaultRetryPolicy(socketTimeout, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
request.setRetryPolicy(policy);
mRequestQueue.add(request);

---

如果你刚开始使用，你可能想考虑使用droidQuery，它更容易配置:

int socketTimeout = 30000;
$.ajax(new AjaxOptions().url(cityListUrl)
                        .timeout(socketTimeout)
                        .success(new Function() {
                            public void invoke($ d, Object... args) {
                                JSONObject jsonResults = (JSONObject) args[0];
                                //Any call
                            }
                        })
                        .error(new Function() {
                            public void invoke($ d, Object... args) {
                                AjaxError error = (AjaxError) args[0];
                                Log.e("Ajax", error.toString());
                            }
                        }));

- Phil

---

有没有onTimeOut方法？ - Dr.jacky

@Mr.Hyde，我不知道Volley中是否有此功能，但您可以在droidQuery中使用statusCode()来处理这个问题。该函数接受一个状态码数组和一个Function，因此您可以传入超时代码（480、419、504、503、522、598、599）和一个处理这些超时的Function。varargs的第一个参数将是一个AjaxOptions对象，您可以选择使用它重新启动请求：$.ajax((AjaxOptions)args[0]);。 - Phil

我尝试了相同的操作，有时它可以正常工作，有时会出现timeoutError并很快重试，但仍然会出现相同的错误。如何确定和定位实际原因呢？ - Bhuro

Answer 2

像这样的东西

RetryPolicy retryPolicy = new DefaultRetryPolicy(
    YOUR_TIMEOUT_MS,
    YOUT_MAX_RETRIES,
    YOUR_BACKOFF_MULT
);

JsonObjectRequest request = new JsonObjectRequest(...);
request.setRetryPolicy(retryPolicy);

或者您可以实现自己的RetryPolicy。

- Blaz

Answer 3

这对我很有用：

这适用于我：

RequestQueue mRequestQueue = Volley.newRequestQueue(getApplicationContext());
JsonObjectRequest request = new JsonObjectRequest(Method.GET, cityListUrl, null, new
    Listener<JSONObject>() {
        public void onResponse(JSONObject jsonResults) {
            //Any Call
        }
    }, new ErrorListener(){
        public void onErrorResponse(VolleyError arg0) {
            //Any Error log
        }
    }
);


int socketTimeout = 30000;//30 seconds - change to what you want
RetryPolicy policy = new DefaultRetryPolicy(socketTimeout, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
request.setRetryPolicy(policy);
mRequestQueue.add(request);

- King of Masses

---

Android Studio 有点小问题，但感谢花费了一分钟或一小时来解决我的问题。我会等待新版本的 ^_^ - david glorioso

Answer 4

String url = "https://api.joind.in/v2.1/events?start=" + start + "&resultsperpage=20&format=json";
Log.i("DREG", "onLoadMoreItems: " + url);
final StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
        new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                // Add Code Here
            }
        },
        new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                    if (error instanceof NetworkError) {
                    } else if (error instanceof ServerError) {
                    } else if (error instanceof AuthFailureError) {
                    } else if (error instanceof ParseError) {
                    } else if (error instanceof NoConnectionError) {
                    } else if (error instanceof TimeoutError) {
                        Toast.makeText(getContext(),
                                "Oops. Timeout error!",
                                Toast.LENGTH_LONG).show();
                    }
            }
        }
);
stringRequest.setRetryPolicy(new DefaultRetryPolicy(
        10000,
        DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
        DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
requestQueue.add(stringRequest);

- Ahamadullah Saikat

Answer 5

void RequestVolley() {

    // Instantiate the RequestQuee
    RequestQueue queue = Volley.newRequestQueue(getApplication());

    //create new volley request
    JsonObjectRequest requestNew = new JsonObjectRequest(Request.Method.GET, Url, null, createMyReqSuccessListener(), createMyReqErrorListener());

    //Response.Listener and Error.Listener defined afterwards


    //first param is TIMEOUT ...integer
    //second param is number of retries ...integer
    //third is backoff multiplier ...integer

    requestNew.setRetryPolicy(new DefaultRetryPolicy(6000, 1, 1));

    queue.add(requestNew);
}

private Response.Listener < JSONObject > createMyReqSuccessListener() {
    return new Response.Listener < JSONObject > () {
        @Override
        public void onResponse(JSONObject response) {

            //do something
        }
    };
}

private Response.ErrorListener createMyReqErrorListener() {
    return new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {

            //do something
        }
    };
}

- Aditya varale