Volley JsonObjectRequest错误响应码500

Question

当我尝试 post json 并将结果作为 json 时，我收到响应代码 500 错误。但是如果我用字符串请求尝试这个没有问题。我在 Whosebug 上搜索了很多，有像我这样的其他人也有这个问题，但没有最新的解决方案。所以有人可以告诉我如何通过最新方法（还有 php 方面）来做 json 对象 post 请求吗？

Android 边:

    Map<String, String> map = new HashMap<String, String>(); 
    map.put("user", username);
    map.put("pass", password);

    JsonObjectRequest sr = new JsonObjectRequest(Request.Method.POST, "http://www.example.com/example/.php?action=signin", new JSONObject(map), new Response.Listener<JSONObject>() {
        @Override
        public void onResponse(JSONObject result) {

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

    }) {
        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            Map<String,String> params = new HashMap<String, String>();

            return params;
        }
    };

PHP 边:

$post = json_decode(file_get_contents("php://input"), true);
        $user = $post['user'];
        $pass = $post['pass'];

$array = array("entrance" =>  $example);

echo json_encode($array,true);

Answer 1

我解决了这个问题，我的 json 对象中只有一个元素实际上是一个 json 数组。我把jsonobjectrequest改成jsonarrayrequest后问题就解决了

Answer 2

试试这个

JSONObject map = new JSONObject(); 
map.put("user", username);
map.put("pass", password);

JsonObjectRequest sr = new JsonObjectRequest(Request.Method.POST, "http://www.example.com/example/.php?action=signin", map, new Response.Listener<JSONObject>() {
    @Override
    public void onResponse(JSONObject result) {
        Log.e("ServiceCall", result.toString());
    }
}, new Response.ErrorListener() {
    @Override
    public void onErrorResponse(VolleyError error) {
        Log.e("ServiceCall", error.toString());
    }
});
RequestQueue mRequestQueue = Volley.newRequestQueue(<Activity>.this);
mRequestQueue.add(sr);

i think you have problem with your json ..and thats why at the server side it throws error and server error 500 comes

Volley JsonObjectRequest错误响应码500

Volley JsonObjectRequest error response code 500

android

json

http

android-volley

jsonobjectrequest