问BasicNetwork.performRequest:意外响应代码413？

EN

        private void submitContacts(){

        // now here we convert this list array into json string

        Gson gson=new Gson();

        final String newDataArray=gson.toJson(dataArray); // dataarray is list aaray

        final String server_url="http://www.........com/TrueCaller/submit_contacts.php"; // url of server check this 100 times it must be working



        // volley

        StringRequest stringRequest=new StringRequest(Request.Method.POST, server_url,
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response)
                    {

                        final String result=response.toString();
                        Log.d("response", "result : "+result); //when response come i will log it
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error)
                    {
                        error.printStackTrace();
                        error.getMessage(); // when error come i will log it
                    }
                }
        )
        {
            @Override
            protected Map<String, String> getParams() throws AuthFailureError {
                Map<String,String> param=new HashMap<String, String>();
                param.put("array",newDataArray); // array is key which we will use on server side

                return param;
            }
        };
        Vconnection.getnInstance(this).addRequestQue(stringRequest); // vConnection i claas which used to connect volley

    }

 if (phoneC != "") {
                Bitmap bitmap = retrieveContactPhoto(MainActivity.this, phoneC);
                String image = "";
                if (bitmap != null) {
                    image = getStringImage(bitmap);
                }

                Contact_Details dt = new Contact_Details(name, phoneC, UIDD, country_code, image, emailC, adressC);
                dataArray.add(dt);
            }

public class Contact_Details {
String name;
String phone_no;
String identifier;
String country_code;

public String getCountry_code() {
    return country_code;
}

public void setCountry_code(String country_code) {
    this.country_code = country_code;
}

public String getImage() {
    return image;
}

public void setImage(String image) {
    this.image = image;
}

String image;

public String getEmail() {
    return email;
}

public void setEmail(String email) {
    this.email = email;
}

String email;

public String getAddress() {
    return address;
}

public void setAddress(String address) {
    this.address = address;
}

String address;

public Contact_Details(String name, String phone_no, String identifier, String country_code, String image, String email, String address) {
    this.name = name;
    this.phone_no = phone_no;
    this.identifier = identifier;
    this.country_code = country_code;
    this.image = image;
    this.email = email;
    this.address = address;
}


public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String getPhone_no() {
    return phone_no;
}

public void setPhone_no(String phone_no) {
    this.phone_no = phone_no;
}

public String getIdentifier() {
    return identifier;
}

public void setIdentifier(String identifier) {
    this.identifier = identifier;
}
}