retrofit+rxjava日志输出

参考：
Retrofit使用Log拦截器在控制台输出Log
解决华为手机无法输出Debug级别log的问题

一、使用okhttp官方Log拦截器

导入依赖：

    compile 'com.squareup.okhttp3:logging-interceptor:3.4.1'

使用log拦截器：

OkHttpClient.Builder builder = new OkHttpClient.Builder();
if (BuildConfig.DEBUG) {
    HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
    loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);//日志级别
    builder.addInterceptor(loggingInterceptor);
}
OkHttpClient client = builder.build();
Retrofit mRetrofit = new Retrofit.Builder()
        .client(client)
        .build();

打印如下：

D/OkHttp: --> GET https://api.douban.com/v2/movie/top250?start=0&count=10 http/1.1
D/OkHttp: --> END GET
D/OkHttp: <-- 200 OK https://api.douban.com/v2/movie/top250?start=0&count=10 (1123ms)
D/OkHttp: Date: Wed, 04 Apr 2018 03:49:23 GMT
D/OkHttp: Content-Type: application/json; charset=utf-8
D/OkHttp: Transfer-Encoding: chunked
D/OkHttp: Connection: keep-alive
D/OkHttp: Keep-Alive: timeout=30
D/OkHttp: Vary: Accept-Encoding
D/OkHttp: X-Ratelimit-Remaining2: 90
D/OkHttp: X-Ratelimit-Limit2: 100
D/OkHttp: Expires: Sun, 1 Jan 2006 01:00:00 GMT
D/OkHttp: Pragma: no-cache
D/OkHttp: Cache-Control: must-revalidate, no-cache, private
D/OkHttp: Set-Cookie: bid=vzLXXRxVlk8; Expires=Thu,
         04-Apr-19 03:49:23 GMT; Domain=.douban.com; Path=/
D/OkHttp: X-DOUBAN-NEWBID: vzLXXRxVlk8
D/OkHttp: X-DAE-Node: dis12
D/OkHttp: X-DAE-App: movie
D/OkHttp: Server: dae
D/OkHttp: {"count": 10, "start": 0, "total": 250, 
"subjects": [{"rating": {"max": 10, "average": 
9.6, "stars": "50", "min": 0}, "genres":............

D/OkHttp: <-- END HTTP (23599-byte body)

使用okhttp过滤。

二、自定义Log拦截器方式1：

依赖：

    compile 'com.squareup.okhttp3:logging-interceptor:3.4.1'

定义拦截器：

@NonNull
private static HttpLoggingInterceptor getHttpLoggingInterceptor() {
    HttpLoggingInterceptor httpLoggingInterceptor =
             new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {
        @Override
        public void log(String message) {
            try {
                String text = URLDecoder.decode(message, "utf-8");
                Log.e("=======", text);
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
                Log.e("======", e.getMessage());
            }
        }
    });
    httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
    return httpLoggingInterceptor;
}

使用:

OkHttpClient.Builder builder = new OkHttpClient.Builder();
if (BuildConfig.DEBUG) {
     builder.addInterceptor(getHttpLoggingInterceptor());
}
OkHttpClient client = builder.build();
Retrofit mRetrofit = new Retrofit.Builder()
        .client(client)
        .build();

log如下：

E/=======: <-- 200 OK https://api.douban.com/v2/movie/top250?start=0&count=10 (1027ms)
E/=======: Date: Wed, 04 Apr 2018 04:38:13 GMT
E/=======: Content-Type: application/json; charset=utf-8
E/=======: Transfer-Encoding: chunked
E/=======: Connection: keep-alive
E/=======: Keep-Alive: timeout=30
E/=======: Vary: Accept-Encoding
E/=======: X-Ratelimit-Remaining2: 99
E/=======: X-Ratelimit-Limit2: 100
E/=======: Expires: Sun, 1 Jan 2006 01:00:00 GMT
E/=======: Pragma: no-cache
E/=======: Cache-Control: must-revalidate, no-cache, private
E/=======: Set-Cookie: bid=e8XDmXKtunk; Expires=Thu, 
            04-Apr-19 04:38:13 GMT; Domain=.douban.com; Path=/
E/=======: X-DOUBAN-NEWBID: e8XDmXKtunk
E/=======: X-DAE-Node: sindar21c
E/=======: X-DAE-App: movie
E/=======: Server: dae
E/=======: {"count": 10, "start": 0, "total": 250, 
"subjects": [{"rating": {"max": 10, "average": 9.6, 
 "stars": "50", "m.............................
E/=======: <-- END HTTP (23599-byte body)

三、自定义Log拦截器方式2：

定义拦截器:

public class LoggingInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
        Request request = chain.request();
        long t1 = System.nanoTime();//请求发起的时间

        String method = request.method();
        if ("POST".equals(method)) {
            StringBuilder sb = new StringBuilder();
            if (request.body() instanceof FormBody) {
                FormBody body = (FormBody) request.body();
                for (int i = 0; i < body.size(); i++) {
                    sb.append(body.encodedName(i)) 
                    .append("=")
                    .append(body.encodedValue(i)) 
                    .append(",");
                }
                sb.delete(sb.length() - 1, sb.length());
                Log.d("---POST---", 
                     String.format("发送请求 %s on %s %n%s %nRequestParams:{%s}",
                        request.url(),
                        chain.connection(),
                        request.headers(),
                        sb.toString()));
            }
        } else {
            Log.d("---GET---", 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();//收到响应事件

        ResponseBody responseBody = response.peekBody(1024 * 1024);
        Log.d("---response---", 
              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;
    }
}

使用:

OkHttpClient.Builder builder = new OkHttpClient.Builder();
if (BuildConfig.DEBUG) {
     builder.addInterceptor(new LoggingInterceptor());
}
OkHttpClient client = builder.build();
Retrofit mRetrofit = new Retrofit.Builder()
        .client(client)
        .build();

log如下：

D/---GET---: 发送请求 https://api.douban.com/v2/movie/top250?start=0&count=10 on null
D/---response---: 接收响应: [https://api.douban.com/v2/movie/top250?start=0&count=10] 
   返回json:【{"count": 10, "start": 0, "total": 250,  
   "subjects": [{"rating": {"max": 10......................