1.添加依賴

compile 'com.squareup.okhttp3:okhttp:3.4.0'

2.創(chuàng)建OkHttp實例

OkHttpClient client = new OkHttpClient();

3.創(chuàng)建Request對象

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

4.調(diào)用execute()方法來發(fā)送請求并獲取服務(wù)器返回的數(shù)據(jù)

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

5.獲取返回的數(shù)據(jù)

String responseData = response.body().string();

若是發(fā)送一條post請求

1.創(chuàng)建RequestBody 對象來存放需要提交的參數(shù)

RequestBody requestBody = new FormBody.Builder().add("鍵名","值").build();

2.打開url連接并且傳遞參數(shù)

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

3.調(diào)用execute()方法來發(fā)送請求并獲取服務(wù)器返回的數(shù)據(jù)

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

4.獲取返回的數(shù)據(jù)

String responseData = response.body().string();

? ? ? ? ? ?

解析后臺傳來的json數(shù)據(jù)

1.添加依賴

compile 'com.google.code.gson:gson:2.7'

2.創(chuàng)建Gson對象

Gson gson = new Gson();

3.獲取返回值并進行解析

List<Product> products = gson.fromJson(jsonData,newTypeTolen<List<Product>>(){}.getType());