Android Volley POST参数 [英] Android Volley POST Parameters

问题描述

我需要调用一个将字符串数组作为POST参数的api.因此，以API定义的示例为例:

I need to call an api that expects a string array as a POST parameter. So for an example of an API definition:

POST api/names

预期的POST参数是名称和其他一些属性的数组，如下所示:

POST parameter expected is an array of names and some other attributes like below:

{ names: [ "John", "Bill" ], department: "Engineering" }

我目前正在使用Android文档中所述的自定义Volley框架，但似乎Volley的参数只能作为Map(字符串，键和值的字符串)传递.我已经有来自Android应用程序的数组，准备将其作为post参数传递，但是此Volley需要一个String.

I am currently using a custom Volley framework as described in the Android documentation but it seems like the parameters from Volley can only be passed as a Map of (String, String as key and value). I already have the array from my Android app, ready to be passed as a post parameter but this Volley expects a String.

我尝试使用Arrays.toString(myStringArray)转换数组，并像下面那样传递它，但是它不起作用.

I tried to convert my array using Arrays.toString(myStringArray) and passed it like below but it does not work.

String[] namesArray = new String[1];
namesArray[0] = "Bill";

Map<String, String> mapParams = new HashMap<String, String>();
mapParams.put("department", "Computer Science");
mapParams.put("names", Arrays.toString(namesArray));

// Then call the Volley here passing the mapParams. 

当我只能使用Volley中的字符串时，如何调用需要数组字符串的api?

How can I call the api that expects a String of array when I can only use a String from Volley?

推荐答案

我将为您提供完整的代码，以通过POST方法将JsonObject发布到排球上.

I will give you full code to post JsonObject on volley, through POST method.

JSONObject js = new JSONObject();
    try {
        js.put("genderType", "MALE");
        }

    } catch (JSONException e) {
        e.printStackTrace();
    }

    String url = "LINK TO POST/";

    // Make request for JSONObject
    JsonObjectRequest jsonObjReq = new JsonObjectRequest(
            Request.Method.POST, url, js,
            new Response.Listener<JSONObject>() {

                @Override
                public void onResponse(JSONObject response) {
                    Log.e(TAG, "Response_Code from Volley" + "\n" + response.toString() + " i am king");
                }
            }, new Response.ErrorListener() {

        @Override
        public void onErrorResponse(VolleyError error) {
            VolleyLog.e(TAG, "Error: " + error.getMessage());
            NetworkResponse response = error.networkResponse;
            if (error instanceof ServerError && response != null) {
                try {
                    String res = new String(response.data,
                            HttpHeaderParser.parseCharset(response.headers, "utf-8"));
                    // Now you can use any deserializer to make sense of data
                    Log.e(TAG, "onErrorResponse: of uploadUser" + res);
                    //   JSONObject obj = new JSONObject(res);
                } catch (UnsupportedEncodingException e1) {
                    // Couldn't properly decode data to string
                    e1.printStackTrace();
                }
            }
        }
    }) {
        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            HashMap<String, String> headers = new HashMap<String, String>();
            headers.put("Content-Type", "application/json");
            return headers;
        }
    };
    Log.e(TAG, "uploadUser:  near volley new request ");
    // Adding request to request queue
    Volley.newRequestQueue(this).add(jsonObjReq);

}

将您需要的任何内容与键及其值一起放置在js对象中

Put anything you need in the js object with key and its values

这篇关于Android Volley POST参数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！