这将创建一个带有Logging的改装对象。不需要创建单独的对象。

 private static final Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(BASE_URL)
            .client(new OkHttpClient().newBuilder()
                    .addInterceptor(new HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY))
                    .readTimeout(READ_TIMEOUT_SECONDS, TimeUnit.SECONDS)
                    .writeTimeout(WRITE_TIMEOUT_SECONDS, TimeUnit.SECONDS)
                    .connectTimeout(CONNECTION_TIMEOUT_SECONDS, TimeUnit.SECONDS)
                    .build())
            .addConverterFactory(GsonConverterFactory.create())
            .build();

在Retrofit 2中做到这一点的最好方法是添加记录器拦截器作为networkInterceptor，这将打印出网络头和您的自定义头。重要的是要记住，拦截器作为一个堆栈工作，并确保在所有的末尾添加记录器。

OkHttpClient.Builder builder = new OkHttpClient.Builder();
builder.addInterceptor(new MyCustomInterceptor());
builder.connectTimeout(60, TimeUnit.SECONDS);
builder.readTimeout(60, TimeUnit.SECONDS);
builder.writeTimeout(60, TimeUnit.SECONDS);
// important line here
builder.addNetworkInterceptor(LoggerInterceptor());

在改装2中，你应该使用HttpLoggingInterceptor。

向build.gradle添加依赖项。截至2019年10月的最新版本为:

implementation 'com.squareup.okhttp3:logging-interceptor:4.2.1'

创建一个Retrofit对象，如下所示:

HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder().addInterceptor(interceptor).build();

Retrofit retrofit = new Retrofit.Builder()
        .baseUrl("https://backend.example.com")
        .client(client)
        .addConverterFactory(GsonConverterFactory.create())
        .build();

return retrofit.create(ApiClient.class);

如果出现弃用警告，只需将setLevel更改为:

interceptor.level(HttpLoggingInterceptor.Level.BODY);

上面的解决方案为您提供的logcat消息非常类似于

setLogLevel(RestAdapter.LogLevel.FULL)

对于java.lang.ClassNotFoundException:

旧的Retrofit版本可能需要旧的日志拦截器版本。详情请看评论部分。

我面临的主要问题是动态添加头文件并将它们记录到调试日志中。我试着增加两个拦截器。一个用于日志记录，一个用于添加动态报头(令牌授权)。问题是我们可以。addinterceptor或。addnetworkinterceptor。正如Jake Wharton对我说的:“网络拦截器总是紧跟在应用程序拦截器之后。看到https://github.com/square/okhttp/wiki/Interceptors”。下面是头文件和日志的工作示例:

OkHttpClient httpClient = new OkHttpClient.Builder()
            //here we can add Interceptor for dynamical adding headers
            .addNetworkInterceptor(new Interceptor() {
                @Override
                public Response intercept(Chain chain) throws IOException {
                    Request request = chain.request().newBuilder().addHeader("test", "test").build();
                    return chain.proceed(request);
                }
            })
            //here we adding Interceptor for full level logging
            .addNetworkInterceptor(new HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY))
            .build();

    Retrofit retrofit = new Retrofit.Builder()
            .addConverterFactory(GsonConverterFactory.create(gsonBuilder.create()))
            .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
            .client(httpClient)
            .baseUrl(AppConstants.SERVER_ADDRESS)
            .build();

我找到了打印登录改造的方法

OkHttpClient okHttpClient = new OkHttpClient.Builder()
            .addInterceptor(new Interceptor() {
                @Override
                public Response intercept(Chain chain) throws IOException {
                    Request request = chain.request();
                    if (BuildConfig.DEBUG) {
                        Log.e(getClass().getName(), request.method() + " " + request.url());
                        Log.e(getClass().getName(), "" + request.header("Cookie"));
                        RequestBody rb = request.body();
                        Buffer buffer = new Buffer();
                        if (rb != null)
                            rb.writeTo(buffer);
                        LogUtils.LOGE(getClass().getName(), "Payload- " + buffer.readUtf8());
                    }
                    return chain.proceed(request);
                }
            })
            .readTimeout(60, TimeUnit.SECONDS)
            .connectTimeout(60, TimeUnit.SECONDS)
            .build();

            iServices = new Retrofit.Builder()
                    .baseUrl("Your Base URL")
                    .client(okHttpClient)
                    .addConverterFactory(GsonConverterFactory.create())
                    .build()
                    .create(Your Service Interface .class);

对我有用。

我不知道setLogLevel()是否会在最终2.0版本的Retrofit中返回，但现在你可以使用一个拦截器来记录日志。

一个很好的例子可以在OkHttp wiki上找到:https://github.com/square/okhttp/wiki/Interceptors

OkHttpClient client = new OkHttpClient();
client.interceptors().add(new LoggingInterceptor());

Retrofit retrofit = new Retrofit.Builder()
        .baseUrl("http://www.yourjsonapi.com")
        .addConverterFactory(GsonConverterFactory.create())
        .client(client)
        .build();