Android使用Volley获得意外的响应代码500

Question

我有GET的简单链接从服务器检索数据，这些数据在Windows服务器上实现，我的android应用程序必须从中获取数据，响应为json格式，例如当我使用此FireFox地址栏上的链接：

http://MY_SITE/android/main.aspx?page=1&cat=0

我得到JsonArray回复：

[{"ID":27,"Number":"03331514800","Price":1500000,"Date":"","Status":0,"Cat":"$1$4$8$8$9$23$","SalesName":null,"TransID":null,"SalesDate":null,"SalesTime":null,"SalesSuccess":false}]

正确但我在使用Unexpected response code 500库

时收到此错误Volley

我的代码：

private void getLatestSimCardNumbers() {
    fetch_server_url = Application.getHostAddress() + "http://MY_SITE/android/main.aspx";

    HashMap<String, String> jsonBody = new HashMap<>();

    jsonBody.put("page", "1");
    jsonBody.put("cat", "0");

    HttpsTrustManager.allowAllSSL();
    JsonArrayRequest req = new JsonArrayRequest(fetch_server_url, new JSONObject(jsonBody),
            new Response.Listener<JSONArray>() {
                @Override
                public void onResponse(JSONArray response) {
                    Log.e("RESPONSE", response.toString());
                }
            }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            Log.e("ERR ", "");
        }
    });
    int         socketTimeout = 30000;
    RetryPolicy policy        = new DefaultRetryPolicy(socketTimeout, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
    req.setRetryPolicy(policy);
    Application.getInstance().addToRequestQueue(req);
}