Question

我在android服务中使用JsonArrayRequest：

public int onStartCommand(Intent intent, int flags, final int startId) {
    //...
    JsonArrayRequest jsonArrayRequest = new JsonArrayRequest
            (Request.Method.GET, url, "", new Response.Listener<JSONArray>() {

                @Override
                public void onResponse(JSONArray response) {
                    Log.i("SUCCESS", response.toString());
                    stopSelf(startId);
                }
            }, new Response.ErrorListener() {

                @Override
                public void onErrorResponse(VolleyError error) {
                    stopSelf(startId);

                }
            });
    CORE.getInstance(getApplicationContext()).addToRequestQueue(jsonArrayRequest);
    Log.i("StationsService", "onStartCommand END");
    return START_STICKY;
}

运行后，我在stopSelf（startId）上获得了Exception;：

java.lang.IllegalMonitorStateException: object not locked by thread before wait()
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:401)
        at com.omsk.wwtlf.istanbultransportnet.api.services.StationsService$1.onResponse(StationsService.java:42)
        at com.omsk.wwtlf.istanbultransportnet.api.services.StationsService$1.onResponse(StationsService.java:36)
        at com.android.volley.toolbox.JsonRequest.deliverResponse(JsonRequest.java:65)
        at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
        at android.os.Handler.handleCallback(Handler.java:615)
        at android.os.Handler.dispatchMessage(Handler.java:92)
        at android.os.Looper.loop(Looper.java:137)
        at android.app.ActivityThread.main(ActivityThread.java:4745)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:511)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
        at dalvik.system.NativeStart.main(Native Method)

你能否建议一个正确的方法来停止Volley的服务？

Answer 1

传递jsonarray作为请求而不是＆＃34;＆＃34; （空白字符串）

public int onStartCommand(Intent intent, int flags, final int startId) {
//...
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest
        (Request.Method.GET, url, <jsonarray-object>, new Response.Listener<JSONArray>() {

            @Override
            public void onResponse(JSONArray response) {
                Log.i("SUCCESS", response.toString());
                stopSelf(startId);
            }
        }, new Response.ErrorListener() {

            @Override
            public void onErrorResponse(VolleyError error) {
                stopSelf(startId);

            }
        });
CORE.getInstance(getApplicationContext()).addToRequestQueue(jsonArrayRequest);
Log.i("StationsService", "onStartCommand END");
return START_STICKY;

}

Answer 2

@Override
protected Map<String, String> getParams() throws AuthFailureError {
    HashMap<String, String> params = new HashMap<String, String>();
    params.put("name", "value");
    return params;
}
then make new constructor :
public PostJsonArrayRequest(String url, Response.Listener<JSONArray> listener, Response.ErrorListener errorListener) {
    super(Method.POST, url, null, listener, errorListener);
}

Android凌空JsonArrayRequest中的服务

2 个答案: