使用resteasy记录JSON帖子

问题描述

我正在寻找一种在RESTEASY框架中记录JSON帖子的方法.

I'm looking for a way to log JSON posts in a RESTEASY framework.

我想记录POST正文以记录文件，以查看客户端向我发送的内容.

I woul like to log the POST body to log file to see what the client is sending to me.

有没有可以使用的拦截器或类似的东西，我找到了PreProcessInterceptor的示例，但它似乎已弃用.

Is there any interceptor or something similar that I can use, I have found an example for PreProcessInterceptor but it looks like it is deprecated.

我正在使用resteasy 3.0.8

I'm using resteasy 3.0.8

推荐答案

您可以使用 ContainerRequestFilter :

@Provider
public class LogFilter implements ContainerRequestFilter {

    private Logger LOG = LoggerFactory.getLogger(LogFilter.class);

    @Override
    public void filter(ContainerRequestContext requestContext) throws IOException {

        if (!"POST".equals(requestContext.getMethod())
                || !MediaType.APPLICATION_JSON_TYPE.equals(requestContext.getMediaType())
                || requestContext.getEntityStream() == null) {
            return;
        }

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        IOUtils.copy(requestContext.getEntityStream(), baos);
        byte[] bytes = baos.toByteArray();
        LOG.info("Posted: " + new String(bytes, "UTF-8"));
        requestContext.setEntityStream(new ByteArrayInputStream(bytes));

    }

}

代替检查方法和内容类型，您还可以按 @ NameBinding 仅在需要的地方.

Instead of checking for Method and Content-Type you can also register this filter per @NameBinding only where you need it.

注意::这个简单的示例复制了请求的InputStream，因此它将被读取两次(可能是性能问题).

Note: This simple example copies the InputStream of the request so it will be read twice (maybe a performance problem).

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