Aditya Vyas Aditya Vyas - 6 months ago 114
JSON Question

Post Method using Volley not working

Hi i am using

Volley
for my login page. I need to pass data like this manner

{
userID : '-988682425884628921',
email :'aditya@vyas.com',
passwd : '123ss'
}


I am using POST Method to send data,I already check in DHC, The Api is working fine in DHC and I am getting JSON Response, But when i try with Volley i am not able to get response. and not even any error in my logcat.

JAVA code

RequestQueue mVolleyQueue = Volley.newRequestQueue(this);

CustomRequest req = new CustomRequest(Request.Method.POST,url,null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.v("tag","login response " + response);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.v("tag","login error response " + error.getMessage());
}
}){
@Override
public Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();

params.put("userID", "-988682425884628921");
params.put("email", "aditya@vyas.com");
params.put("passwd", "123ss");
return params;
}


@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/json; charset=utf-8");
return headers;
}
};
mVolleyQueue.add(req);


Error

05-28 09:20:14.696 2450-2468/com.android.msahakyan.expandablenavigationdrawer E/tag﹕ parseNetworkError is ! null
05-28 09:20:14.697 2450-2468/com.android.msahakyan.expandablenavigationdrawer E/tag﹕ parseNetworkError status code : 400
05-28 09:20:14.697 2450-2468/com.android.msahakyan.expandablenavigationdrawer E/tag﹕ parseNetworkError message : <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">
<HTML><HEAD><TITLE>Bad Request</TITLE>
<META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii"></HEAD>
<BODY><h2>Bad Request - Invalid Header</h2>
<hr><p>HTTP Error 400. The request has an invalid header name.</p>
</BODY></HTML>


}

Answer

Solved your problem. Just used JsonArrayRequest and passed parameters in JsonObject form:

    Map<String, String> params = new HashMap<String, String>();
    params.put("userID", "userid");
    params.put("email","email");
    params.put("passwd", "password");
    JsonArrayRequest request = new JsonArrayRequest(Request.Method.POST, "url", new JSONObject(params),
            new Response.Listener<JSONArray>() {
                @Override
                public void onResponse(JSONArray response) {
                    System.out.println("response -->> " + response.toString());
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    System.out.println("change Pass response -->> " + error.toString());
                }
            });

    request.setRetryPolicy(new

            DefaultRetryPolicy(60000,
            DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
            DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));


    Volley.newRequestQueue(activity).add(request);

No need of overriding getParams() or getHeaders().

Problem : 1 You were getting response code 500 because the server was accepting the params as JsonObject and we are trying to feed String.

Problem : 2 You were using JsonObjectRequet but the response from the server was in JsonArray so you need to use JsonArrayRequest to accept the response in JsonArray

Try and let me know this helps or not :)

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