Android使用拦截器打印网络请求、响应日志信息

OKhttp的拦截器有很多用处，今天分享一个利用它实现对请求响应信息的一个日志信息打印的封装。

效果图

public class MyInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
        Request original = chain.request();
        String url = original.url().toString();
        Response response = chain.proceed(original);
        LogUtil.i(String.format("...\n请求链接：%s\n请求参数：%s\n请求响应%s", original.url(), getRequestInfo(original), getResponseInfo(response))); 
        return response;
    }

    /**
     * 打印请求消息
     *
     * @param request 请求的对象
     */
    private String getRequestInfo(Request request) {
        String str = "";
        if (request == null) {
            return str;
        }
        RequestBody requestBody = request.body();
        if (requestBody == null) {
            return str;
        }
        try {
            Buffer bufferedSink = new Buffer();
            requestBody.writeTo(bufferedSink);
            Charset charset = Charset.forName("utf-8");
            str = bufferedSink.readString(charset);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return str;
    }

    /**
     * 打印返回消息
     *
     * @param response 返回的对象
     */
    private String getResponseInfo(Response response) {
        String str = "";
        if (response == null || !response.isSuccessful()) {
            return str;
        }
        ResponseBody responseBody = response.body();
        long contentLength = responseBody.contentLength();
        BufferedSource source = responseBody.source();
        try {
            source.request(Long.MAX_VALUE); // Buffer the entire body.
        } catch (IOException e) {
            e.printStackTrace();
        }
        Buffer buffer = source.buffer();
        Charset charset = Charset.forName("utf-8");
        if (contentLength != 0) {
            str = buffer.clone().readString(charset);
        }
        return str;
    }

}