public class HttpBaseService {

     private OkHttpClient client = new OkHttpClient();

     private static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");

     public String sendGetRequest(String url){

         Request request = new Request.Builder().url(url).build();

         Response response = null;

         try {

             response = client.newCall(request).execute();

             if (response.isSuccessful()) {

                 return response.body().string();

             }

         } catch (IOException e) {

             e.printStackTrace();

         }

         return "";

     }

     public int sendDelRequest(String url){

         Request request = new Request.Builder().url(url).delete().build();

         return sendOperateRequest(request);

     }

     public int sendPostRequest(String url,String json){

 //        RequestBody formBody = new FormEncodingBuilder()

 //                .add("platform", "android")

 //                .add("name", "bug")

 //                .add("subject", "XXXXXXXXXXXXXXX")

 //                .build();

         RequestBody body = RequestBody.create(JSON,json);

         Request request = new Request.Builder().url(url).post(body).build();

         return sendOperateRequest(request);

     }

     public int sendPutRequest(String url,String json){

         RequestBody body = RequestBody.create(JSON,json);

         Request request = new Request.Builder().url(url).put(body).build();

         return sendOperateRequest(request);

     }

     private int sendOperateRequest(Request request){

         Response response = null;

         try {

             response = client.newCall(request).execute();

             if (response.isSuccessful()) {

                 return ;

             }

         } catch (IOException e) {

             e.printStackTrace();

         }

         return -;

     }

 }