Question

我正在使用volley从服务器获取Json数据。这是一种检测语言API，它接受文本和API密钥作为参数。当我发送请求时，来自API的响应是“密钥无效”。我已经在邮递员上检查了它，钥匙工作正常。

这是我的代码。

public void detectlanguage(Context context, final String str) {


    String url = String.format("http://ws.detectlanguage.com/0.2/detect");


    JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, url, null,
            new com.android.volley.Response.Listener<JSONObject>() {
                @Override
                public void onResponse(JSONObject response) {
                    res = response.toString();
                    try {
                        JSONObject jsonObject = new JSONObject(res);
                        Log.i((TAG), jsonObject.toString());
                        jsonArray = jsonObject.getJSONObject("data").getJSONArray("detections");
                        string = jsonArray.getJSONObject(0).getString("language");

                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    Toast.makeText(TakePicture.this, string, Toast.LENGTH_LONG).show();
                }
            }, new com.android.volley.Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            VolleyLog.d(TAG, "Error: " + error.getMessage());
            Toast.makeText(getApplicationContext(),
                    error.getMessage(), Toast.LENGTH_SHORT).show();
        }
    })
     {

        @Override
        protected Map<String, String> getParams() throws AuthFailureError {
            Map<String, String> params = new HashMap<>(2);
            params.put("q", str);
            params.put("key", key);

            return params;
        }

         @Override
         public Map<String, String> getHeaders() throws AuthFailureError {

             final HashMap<String, String> headers = new HashMap<>();
             headers.put("Content-Type", "form-data;boundary=" + BOUNDARY);
             return headers;


         }
     };


    AppController.getInstance().addToRequestQueue(jsonObjectRequest, TAG);


}

当我手动添加数据时，代码工作，但它没有以这种方式工作。可能是什么问题？

Answer 1

public void detectlanguage(Context context, final String str) {


String url = String.format("http://ws.detectlanguage.com/0.2/detect");

JSONObject jsonObject = new JSONObject();
try{
   jsonObject.put("first_name", "S");
   jsonObject.put("last_name", "K");   
}

catch(Exception e)
{}

//3rd Parms not null if your have parms
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, url, jsonObject,
        new com.android.volley.Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                res = response.toString();
                try {
                    JSONObject jsonObject = new JSONObject(res);
                    Log.i((TAG), jsonObject.toString());
                    jsonArray = jsonObject.getJSONObject("data").getJSONArray("detections");
                    string = jsonArray.getJSONObject(0).getString("language");

                } catch (Exception e) {
                    e.printStackTrace();
                }
                Toast.makeText(TakePicture.this, string, Toast.LENGTH_LONG).show();
            }
        }, new com.android.volley.Response.ErrorListener() {
    @Override
    public void onErrorResponse(VolleyError error) {
        VolleyLog.d(TAG, "Error: " + error.getMessage());
        Toast.makeText(getApplicationContext(),
                error.getMessage(), Toast.LENGTH_SHORT).show();
    }
})
 {

    @Override
    protected Map<String, String> getParams() throws AuthFailureError {
        Map<String, String> params = new HashMap<>(2);
        params.put("q", str);
        params.put("key", key);

        return params;
    }

     @Override
     public Map<String, String> getHeaders() throws AuthFailureError {

         final HashMap<String, String> headers = new HashMap<>();
         headers.put("Content-Type", "form-data;boundary=" + BOUNDARY);
         return headers;
     }
 };
AppController.getInstance().addToRequestQueue(jsonObjectRequest, TAG);
}

如何使用凌空从服务器获得响应？

1 个答案: