okhttp日志拦截

package www.jc.house.common.http;


import android.util.Log;

import java.io.IOException;
import java.nio.charset.Charset;
import java.util.concurrent.TimeUnit;

import okhttp3.Connection;
import okhttp3.Headers;
import okhttp3.Interceptor;
import okhttp3.MediaType;
import okhttp3.Protocol;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import okhttp3.ResponseBody;
import okio.Buffer;

/**
 * Created by xin on 2017/7/22.
 */

public class HttpLogSaveInterceptor implements Interceptor {
    private static final Charset UTF8 = Charset.forName("UTF-8");

    @Override
    public Response intercept(Chain chain) throws IOException {

        //Request
        Request request = chain.request();
        RequestBody requestBody = request.body();
        boolean hasRequestBody = requestBody != null;


        Connection connection = chain.connection();
        Protocol protocol = connection != null ? connection.protocol() : Protocol.HTTP_1_1;
        String requestStartMessage = "--> " + request.method() + ' ' + request.url() + ' ' + protocol;
        Log.v("http",requestStartMessage);
        if (hasRequestBody) {
            if (requestBody.contentType() != null) {
                Log.v("http", "Content-Type: " + requestBody.contentType());
            }
            if (requestBody.contentLength() != -1) {
                Log.v("http", "Content-Length: " + requestBody.contentLength());
            }
        }
        Headers headers = request.headers();
        for (int i = 0, count = headers.size(); i < count; i++) {
            String name = headers.name(i);
            // Skip headers from the request body as they are explicitly logged above.
            if (!"Content-Type".equalsIgnoreCase(name) && !"Content-Length".equalsIgnoreCase(name)) {
                Log.v("http", name + ": " + headers.value(i));
            }
        }



        //请求参数
        Buffer buffer = new Buffer();
        requestBody.writeTo(buffer);
        Charset charset = UTF8;
        MediaType contentType = requestBody.contentType();
        if (contentType != null) {
            charset = contentType.charset(UTF8);
        }
        Log.v("http", "");
        Log.v("http", buffer.readString(charset));
        Log.v("http", "--> END " + request.method()
                + " (" + requestBody.contentLength() + "-byte body)");
        

        //Response

        long startNs = System.nanoTime();
        Response response = chain.proceed(request);
        long tookMs = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNs);

        ResponseBody responseBody = response.body();
        long contentLength = responseBody.contentLength();


        String bodySize = contentLength != -1 ? contentLength + " -byte" : " unknown-length";

        Log.v("http","<-- " + response.code() + ' ' + response.message() + ' '
                + response.request().url() + " (" + tookMs + "ms" +  bodySize + " body" );

        Headers responseHeaders = response.headers();
        for (int i = 0, count = headers.size(); i < count; i++) {
            Log.v("http",responseHeaders.name(i) + ": " + responseHeaders.value(i));
        }

        okhttp3.MediaType mediaType = response.body().contentType();

        String content = response.body().string();
        Log.v("http", content);
        Log.v("http", "<-- END HTTP");

        return response.newBuilder()
                .body(okhttp3.ResponseBody.create(mediaType, content))
                .build();
    }
}