Android使用攔截器打印網絡請求、響應日誌信息

OKhttp的攔截器有很多用處，今天分享一個利用它實現對請求響應信息的一個日誌信息打印的封裝。

效果圖

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請求鏈接：%s\n請求參數：%s\n請求響應%s", original.url(), getRequestInfo(original), getResponseInfo(response))); 
        return response;
    }

    /**
     * 打印請求消息
     *
     * @param request 請求的對象
     */
    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 返回的對象
     */
    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;
    }

}