Retrofit添加 Interceptor

User-Agent

public class UAInterceptor implements Interceptor {

    @Override
    public Response intercept(Chain chain) throws IOException {
        Request.Builder builder = chain.request().newBuilder();
        builder.addHeader("User-Agent","Android;lovelycn;1.0");
        return chain.proceed(builder.build());
    }
}

log日志打印

public class LogInterceptor implements Interceptor {

    public String TAG = "okHttp";

    @Override
    public okhttp3.Response intercept(Chain chain) throws IOException {
        Request request = chain.request();
        long startTime = System.currentTimeMillis();
        okhttp3.Response response = chain.proceed(chain.request());
        long endTime = System.currentTimeMillis();
        long duration = endTime - startTime;
        okhttp3.MediaType mediaType = response.body().contentType();
        String content = response.body().string();
        Log.e(TAG, "\n");
        Log.e(TAG, "----------Start----------------");
        Log.e(TAG, "| " + request.toString());
        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) + "=" + body.encodedValue(i) + ",");
                }
                sb.delete(sb.length() - 1, sb.length());
                Log.e(TAG, "| RequestParams:{" + sb.toString() + "}");
            }
        }
        Log.e(TAG, "| Response:" + content);
        Log.e(TAG, "----------End:" + duration + "毫秒----------");
        return response.newBuilder()
                .body(okhttp3.ResponseBody.create(mediaType, content))
                .build();
    }
}

  public static OkHttpClient genericClient() {
        OkHttpClient httpClient = new OkHttpClient.Builder()
                .addInterceptor(new UAInterceptor())
                .addInterceptor(new LogInterceptor())
                .build();
        return httpClient;
    }