Android发送POST网络请求

参考链接：【Android -- 网络请求】网络请求（Okhttp）_51CTO博客_android 网络请求

项目中需要通过发送网络请求获取需要显示的数据内容

 请求地址和requestbody如上图所示

//网络请求用
implementation 'com.squareup.okhttp3:okhttp:4.9.3'

代码实现如下：

private void postRequest(JSONArray setCodeParam,JSONArray codeParam,int target){
            MediaType mediaType = MediaType.parse("text/x-markdown; charset=utf-8");
            JSONObject requestObj = new JSONObject();
            try {
                JSONObject targetObj = new JSONObject();
                targetObj.put("Target",target);
                requestObj.put("Head",targetObj);

                JSONArray colArray = new JSONArray();
                colArray.put("COL1");
                colArray.put("COL2");
                requestObj.put("WantCol",colArray);

                requestObj.put("Setcode",setCodeParam);
                requestObj.put("Code",codeParam);
            } catch (JSONException e) {
                e.printStackTrace();
            }


            String requestBody = requestObj.toString();
            Request request = new Request.Builder()
                    .url("http://xxxxx.xxxxx.com:0000/XXXXX?Entry=XXXXXXXXXXX")
                    .post(RequestBody.create(mediaType, requestBody))
                    .build();
            OkHttpClient okHttpClient = new OkHttpClient();
            okHttpClient.newCall(request).enqueue(new Callback() {
                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    try {
                        String responseStr = response.body().string();
                        if(responseStr == null || responseStr.isEmpty())
                            return;
                        JSONObject responseObj = new JSONObject(responseStr);
                        ......
                        Log.d(LOG_TAG, "onResponse: " + responseStr);
                    } catch (JSONException | NumberFormatException e) {
                        e.printStackTrace();
                    }
                }

                @Override
                public void onFailure(Call call, IOException e) {
                    Log.d(LOG_TAG, "onFailure: " + e.getMessage());
                }
            });
        }