OKhttp3基本POST使用

protected OkHttpClient mOkHttpClient;

//初始化okHttpClient
private void initOkHttpClient() {
    File sdcache = getExternalCacheDir();
    int cacheSize = 10 * 1024 * 1024;
    OkHttpClient.Builder builder = new OkHttpClient.Builder()
            .connectTimeout(15, TimeUnit.SECONDS)
            .writeTimeout(20, TimeUnit.SECONDS)
            .readTimeout(20, TimeUnit.SECONDS)
            .cache(new Cache(sdcache.getAbsoluteFile(), cacheSize));
    mOkHttpClient = builder.build();
}

//请求方法
public void testOKHttp3(){
    //fastJson将对象转成JSON字符串
    TestBean testBean = new TestBean();
    testBean.setAge("12");
    testBean.setName("Tom");
    String json = JSON.toJSONString(testBean);
    //请求body
    RequestBody body = RequestBody.create(MEDIA_TYPE_JSON, json);
    //请求header的添加
    Headers headers = new Headers.Builder().add("test","12")
            .add("test1","456").build();
    //请求组合创建
    Request request = new Request.Builder()
            .url("https://free-api.heweather.com/s6/air/now?location=beijing&key=f464c53cb02240a194640685ee425116")
            .post(body)
            .headers(headers)
            .build();
     //发起请求
     mOkHttpClient.newCall(request).enqueue(new Callback() {
         @Override
         public void onFailure(Call call, IOException e) {

         }
         @Override
         public void onResponse(Call call, Response response){
             //获得返回，并使用FastJson将Json字符串存储在JavaBean对象中
             final AirConditionInfoList airConditionInfoList = JSON.parseObject(response.body().string(),                     AirConditionInfoList.class);
         }
     });
}