java中调用api的方式(postJsonHTTP)

比眉伴天荒 2022-11-25 05:26 18阅读 0赞

//设置格式以及字符编码
     private static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");
     
     /** * @Description: 获取抓拍机列表 * @param boxIP 调用服务器的ip地址 * @param port 调用服务器的端口号 * @param jsonStr 发送的数据 * @param requestHead 请求头 * @return: * @Author: liujianhua * @Date: 18:47 */
     //比如：http://192.168.88.133:8080/api/selectById
     //同：http://boxIP:port/requestHead
     public static  String postJsonHTTP(String boxIP,String port ,String jsonStr,String requestHead) throws IOException { 
            String url = "http://"+boxIP+":"+port+"/"+requestHead;
            OkHttpClient okHttpClient = new OkHttpClient.Builder().readTimeout(30, TimeUnit.SECONDS).build();
            RequestBody requestBody = RequestBody.create(JSON, jsonStr);
            Request.Builder builder = new Request.Builder();
            final Request request = builder.url(url).post(requestBody).build();
            final Call call = okHttpClient.newCall(request);
            Response response;
            response = call.execute();
            return response.body().string();
        }

#### 如何调用 ####

public List<Map> requestCameraList() throws Exception{ 
            String boxIP = "192.168.88.133";
            String port = "8080";
            //将数据存放到map中
            Map requestMap = new HashMap();
            requestMap.put("Name","SubDevicesManageRequest");
            //下面将map转为json 
            String ret = postJsonHTTP(boxIP, port, gson.toJson(requestMap),LOADBAIDUCAMERA);
            //将收到的数据转为map格式
            HashMap retMap = gson.fromJson(ret, HashMap.class);
            System.err.println(retMap);
            return cameraListMap;
        }