OkHttp日志拦截器LoggingInterceptor

• 首先我们需要在项目中添加依赖

    compile 'com.squareup.retrofit2:retrofit:2.3.0'
    compile 'com.squareup.retrofit2:converter-gson:2.0.2'

• 创建拦截器

public class LoggingInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
        //Chain 里包含了request和response
        Request request = chain.request();
        long t1 = System.nanoTime();//请求发起的时间
        Logger.info(String.format("发送请求 %s on %s%n%s",request.url(),chain.connection(),request.headers()));
        Response response = chain.proceed(request);
        long t2 = System.nanoTime();//收到响应的时间
        //不能直接使用response.body（）.string()的方式输出日志
        //因为response.body().string()之后，response中的流会被关闭，程序会报错，
        // 我们需要创建出一个新的response给应用层处理
        ResponseBody responseBody = response.peekBody(1024 * 1024);
        Logger.info(String.format("接收响应：[%s] %n返回json:%s  %.1fms%n%s",
                response.request().url(),
                responseBody.string(),
                (t2-t1) /1e6d,
                response.headers()
                ));
        return response;
    }
}

• 请求时我们用了两种方法，我们先看第一种使用O看Http的；

    private void useOkHttp() {
        OkHttpClient client = new OkHttpClient.Builder()
                .addInterceptor(new LoggingInterceptor())
                .build();
        Request request = new Request.Builder().url(Urls.requestJokesUrl)
                .header("User-Agent", "OkHttp Example")
                .build();
        client.newCall(request).enqueue(new okhttp3.Callback() {
                @Override
                public void onFailure(okhttp3.Call call, IOException e) {

                }

                @Override
                public void onResponse(okhttp3.Call call, Response response) throws IOException {
                    runOnUiThread(new
                                          Runnable() {
                                              @Override
                                              public void run() {
                                                  Toast.makeText(MainActivity.this, "请求成功", Toast.LENGTH_SHORT).show();
                                              }
                                          });
                }
            });
    }

• 接下来我们看第二种使用Retrofit的；

用到的接口JokesRequest_interface.java

public interface JokesRequest_interface {

    @Headers("User-Agent:OkHttp Example")
    @GET("content/text.php")
    Call<JokesBean> getJokes(@Query("key") String key,@Query("page") String page,@Query("pagesize") String pageSize);

}

开始请求：

    private void useRetrofit() {
        OkHttpClient client = new OkHttpClient.Builder()
                .addInterceptor(new LoggingInterceptor())
                .build();
        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(Urls.baseUrl)
                .addConverterFactory(GsonConverterFactory.create())
                .client(client)
                .build();
        JokesRequest_interface request = retrofit.create(JokesRequest_interface.class);
        Call<JokesBean> call = request.getJokes(Constant.DOUBIAN_KEY, "1", "1");
        call.enqueue(new Callback<JokesBean>() {
            @Override
            public void onResponse(Call<JokesBean> call, retrofit2.Response<JokesBean> response) {
                Toast.makeText(MainActivity.this, "请求成功", Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onFailure(Call<JokesBean> call, Throwable t) {
            }
        });
    }

• 最后我们看看拦截到的log日志

  
  log

我测试的接口是申请的聚合的笑话大全