如何从Volley中的JSONObject获取字符串响应 [英] How to get String response from JSONObject in Volley

问题描述

我已经通过齐射创建了JSONRequest，它成功命中了服务，检查了服务端，它接收了数据，并发送成功"作为回报.

I have created JSONRequest by using volley, It successfully hits the service, I checked the service end, It receives the data, and send "Success" in return.

问题在于，Service在输出中返回String，而Volley在输出中除了某些JSON Data.因此，它执行onError方法而不是onResponse.

The problem is that, Service returns String in output, and Volley excepts some JSON Data in output. So it executes the onError Method, instead of onResponse.

请指导我如何使它接受字符串响应，或者当您将JSONObject作为请求使用时，这是不可能的.

Kindly guide me how to make it accept string response, or is it not possible when you are using JSONObjectas request.

    Request<JSONObject> jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, "http://192.168.0.101:8888/api/services/mytest",
            jsonParent, new Response.Listener<JSONObject>() {
        @Override
        public void onResponse(JSONObject response) {
            Log.d("Success", response.toString());
            deleteFile();
        }
    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            Log.d("Error", error.toString());
            deleteFile();
        }

    RequestQueue requestQueue = Volley.newRequestQueue(getApplicationContext());
    requestQueue.add(jsonObjectRequest);

推荐答案

您可以使用StringRequest代替JSONRequest.

You can use StringRequest instead JSONRequest.

StringRequest stringRequest = new StringRequest(methodType, url,
                    new Response.Listener<String>() {
                        @Override
                        public void onResponse(String response) {

                        }
                    }, new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {

                }
            }){
                @Override
                public Map<String, String> getHeaders() throws AuthFailureError {
                    return headers == null ? super.getHeaders() : headers;
                }

                @Override
                public byte[] getBody() throws AuthFailureError {
                    return "Your JSON body".toString().getBytes();
                }
            };

getheaders方法是根据需要添加自定义标头，而getBody提供request body.

getheaders method is to add custom headers if you want and getBody to supply request body.

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