相关疑难解决方法(0)

我正在使用android Volley提出请求.所以我使用这段代码.我不明白一件事.我检查我的服务器,params始终为null.我认为getParams()不起作用.我该怎么做才能解决这个问题.

 RequestQueue queue = MyVolley.getRequestQueue();
        JsonObjectRequest jsObjRequest = new JsonObjectRequest(Request.Method.POST,SPHERE_URL,null,
                new Response.Listener<JSONObject>() {
                    @Override
                    public void onResponse(JSONObject response) {
                        System.out.println(response);
                        hideProgressDialog();
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                      hideProgressDialog();
                    }
                }) {
            protected Map<String, String> getParams() throws AuthFailureError {
                Map<String, String> params = new HashMap<String, String>();
                params.put("id","1");
                params.put("name", "myname");
                return params;
            };
        };
        queue.add(jsObjRequest);

我正在尝试在Volley JsonObjectRequest中发送POST参数.最初,它通过遵循官方代码所说的传递包含JsonObjectRequest的构造函数中的参数的JSONObject来为我工作.然后它突然停止工作,我没有对以前工作的代码进行任何更改.服务器不再识别正在发送任何POST参数.这是我的代码:

RequestQueue queue = Volley.newRequestQueue(this);
String url ="http://myserveraddress";

// POST parameters
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "test");

JSONObject jsonObj = new JSONObject(params);

// Request a json response from the provided URL
JsonObjectRequest jsonObjRequest = new JsonObjectRequest
        (Request.Method.POST, url, jsonObj, new Response.Listener<JSONObject>()
        {
            @Override
            public void onResponse(JSONObject response)
            {
                Toast.makeText(getApplicationContext(), response.toString(), Toast.LENGTH_SHORT).show();
            }
        },
        new Response.ErrorListener()
        {
            @Override
            public void onErrorResponse(VolleyError error)
            {
                Toast.makeText(getApplicationContext(), error.toString(), Toast.LENGTH_SHORT).show();
            }
        });

// Add the request to …

我正在尝试使用Android中的Volley将一些参数发布到我的rails API.这是代码:

我尝试了两个日志语句,一个在getParams(),另一个在getHeaders().getHeaders()记录中的一个而另一个不记录.为什么凌空无视getParams()？

{
//full_name,email,password are private variables defined for this class

String url =  "http://10.0.2.2:3000/users/sign_up.json" ; 

JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST,
                 url, null,
                 new Response.Listener<JSONObject>() {

                     @Override
                     public void onResponse(JSONObject response) {
                         Log.d(TAG, response.toString());
                         pDialog.hide();
                     }
                 }, new Response.ErrorListener() {

                     @Override
                     public void onErrorResponse(VolleyError error) {
                         VolleyLog.d(TAG, "Error: " + error.getMessage());
                         pDialog.hide();
                     }
                 }) {

             @Override
             public Map<String, String> getParams() {
                 Map<String, String> params = new HashMap<String, String>();

                 //This does not …

我正在尝试连接API url ="api adress",它接受两个头类型application/json来响应json和application/xml以在xml中重新定义.我需要使用json参数命中JSON,并且响应也将采用json格式.使用android volley Post请求和JsonObjectRequest设置头使用getHeaders它连接到服务器但getParams设置参数不起作用.

RequestQueue queue = Volley.newRequestQueue(this);
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Method.POST,
            Constants.BASE_URL + Constants.LOGIN, null, response,
            response_error) {
        /**
         * Passing some request headers
         * */
        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            HashMap<String, String> headers = new HashMap<String, String>();
            headers.put("Content-Type", "application/json");
            return headers;
        }
         @Override
         protected Map<String, String> getPostParams()
         throws AuthFailureError {
         // TODO Auto-generated method stub
            Map<String, String> params = new HashMap<String, String>();
            params.put("key", "value");
            return params;
         }
    };
    // implementation of listeners …