okhttp網絡框架的使用get和post請求

首先引入okhttp網絡框架，很簡單如圖：在app項目中的build.gradle裏的dependencies
裏添加compile ‘com.squareup.okhttp3:okhttp:3.2.0’ 這句代碼依賴。
然後點擊Sync Now即可使用。

Get請求（主要獲取數據）

//構造request對象
 Request request  = new Request.Builder().get().url("https://www.baidu.com")
 .build();
 //創建okhttpClient對象
OkHttpClient okHttpClient = new OkHttpClient();
//獲取call對象
Call call = okHttpClient.newCall(request);
//異步請求
call.enqueue(new Callback() {
     @Override
     public void onFailure(Call call, IOException e) {
     //請求失敗異常處理
          e.printStackTrace();
     }
    @Override
        public void onResponse(Call call, Response response) throws IOException {
        //請求成功獲取數據
            String string = response.body().string();

        }
    });

Post請求（主要提交數據給服務端，需要請求體，responseBody根據類似鍵值對的添加來傳遞）

 //創建okhttpClient對象
 OkHttpClient okHttpClient = new OkHttpClient();
 FormBody.Builder requestBuild = new FormBody.Builder();

 //這裏根據鍵值對來添加要傳遞的數據給服務端
    RequestBody requestBody = requestBuild.add
    ("username", "niubi").add("password", "324").build();

    //構造request
    Request request = new Request.Builder()
            .post(requestBody)
            .url(baseUrl + "login")//服務器地址
            .build();   

    //獲取call對象
Call call = okHttpClient.newCall(request);

//異步請求
call.enqueue(new Callback() {
     @Override
     public void onFailure(Call call, IOException e) {
     //請求失敗異常處理
          e.printStackTrace();
     }
    @Override
        public void onResponse(Call call, Response response) throws IOException       {


        }
    });