1. Get方法
   //创建okHttpClient对象
   OkHttpClient mOkHttpClient = new OkHttpClient();
   //创建一个Request
   final Request request = new Request.Builder()
   .url("https://github.com/hongyangAndroid")
   .build();
   //new call
   Call call = mOkHttpClient.newCall(request);
   //请求加入调度
   call.enqueue(new Callback()
   {
   @Override
   public void onFailure(Request request, IOException e)
   {
   }

        @Override
        public void onResponse(final Response response) throws IOException
        {
                //String htmlStr =  response.body().string();
        }
   

});

2. Post方法
   Request request = buildMultipartFormRequest(
   url, new File[]{file}, new String[]{fileKey}, null);
   FormEncodingBuilder builder = new FormEncodingBuilder();
   builder.add("username","张鸿洋");

Request request = new Request.Builder()
.url(url)
.post(builder.build())
.build();
mOkHttpClient.newCall(request).enqueue(new Callback(){});

image.png

3. 获取响应 RealCall
   getResponseWithInterceptorChain

   
   
   image.png

private Response getResponseWithInterceptorChain() throws IOException {
// Build a full stack of interceptors.
List<Interceptor> interceptors = new ArrayList<>();
//添加应用拦截器
interceptors.addAll(client.interceptors());
//添加重试和重定向拦截器
interceptors.add(retryAndFollowUpInterceptor);
//添加转换拦截器
interceptors.add(new BridgeInterceptor(client.cookieJar()));
//添加缓存拦截器
interceptors.add(new CacheInterceptor(client.internalCache()));
//添加连接拦截器
interceptors.add(new ConnectInterceptor(client));
//添加网络拦截器
if (!retryAndFollowUpInterceptor.isForWebSocket()) {
interceptors.addAll(client.networkInterceptors());
}
//添加网络拦截器
interceptors.add(new CallServerInterceptor(
retryAndFollowUpInterceptor.isForWebSocket()));
//生成拦截器链
Interceptor.Chain chain = new RealInterceptorChain(
interceptors, null, null, null, 0, originalRequest);
return chain.proceed(originalRequest);
}

image.png

//手动创建一个OkHttpClient并设置超时时间
        OkHttpClient.Builder builder = new OkHttpClient.Builder();
        builder.connectTimeout(DEFAULT_TIMEOUT, TimeUnit.SECONDS);

        retrofit = new Retrofit.Builder()
                .client(getOkHttpClient())
                .addConverterFactory(JsonConverterFactory.create(new Gson()))
//                .addConverterFactory(GsonConverterFactory.create())
                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
                .baseUrl(BASE_URL)
                .build();

        apiService = retrofit.create(APIService.class);

2） 创建Retrofit对象
Retrofit retrofit = new Retrofit.Builder()
        //使用自定义的mGsonConverterFactory
        .addConverterFactory(GsonConverterFactory.create())
        .baseUrl("http://apis.baidu.com/txapi/")
        .build();
mApi = retrofit.create(APi.class);
3）发起网络请求
mApi = retrofit.create(APi.class);
Call<News> news = mApi.getNews("1", "10");
news.enqueue(new Callback<News>() {
    @Override
    public void onResponse(Call<News> call, Response<News> response) {

    }

    @Override
    public void onFailure(Call<News> call, Throwable t) {

    }
});
public interface APi {

    @Headers("apikey:81bf9da930c7f9825a3c3383f1d8d766")
    @GET("word/word")
    Call<News> getNews(@Query("num") String num,@Query("page")String page);
}