[OKHttp] OKhttp使用

OKHttp.java

//1. 同步请求 
OkHttpClient client = new OkHttpClient();//创建OkHttpClient对象
Request request = new Request.Builder()
  .url("http://www.baidu.com")//请求接口。如果需要传参拼接到接口后面。
  .build();//创建Request 对象
Response response = null;
response = client.newCall(request).execute();//得到Response 对象
//2. 异步
 OkHttpClient client = new OkHttpClient();
    Request request = new Request.Builder()
            .url("http://www.baidu.com")
            .build();
    client.newCall(request).enqueue(new Callback() {
        @Override
        public void onFailure(Call call, IOException e) {
        }
        @Override
        public void onResponse(Call call, Response response) throws IOException {
            if(response.isSuccessful()){//回调的方法执行在子线程。
                Log.d("kwwl","获取数据成功了");
                Log.d("kwwl","response.code()=="+response.code());
                Log.d("kwwl","response.body().string()=="+response.body().string());
            }
        }
    });
// 3. Post
  OkHttpClient client = new OkHttpClient();//创建OkHttpClient对象。
    FormBody.Builder formBody = new FormBody.Builder();//创建表单请求体
    formBody.add("username","zhangsan");//传递键值对参数
    Request request = new Request.Builder()//创建Request 对象。
            .url("http://www.baidu.com")
            .post(formBody.build())//传递请求体
            .build();
    client.newCall(request).enqueue(new Callback() {。。。});/