使用 JAX-RS 的 ContainerResponseContext 获取和打印响应主体

Question

我有下面的代码，我正在尝试使用 ContainerResponseContext 获取和打印响应正文。但是，它返回 null。我可以使用 responseContext.getStatus() 等 getter 从“ContainerResponseContext”获取其他详细信息。请注意，我不想在任何地方使用“WriterInterceptor”和 Lombok 的“aroundWriteTo”。任何帮助表示赞赏。谢谢！！

    public void getResponseBody(ContainerResponseContext context) throws IOException {
        OutputStream originalStream = context.getEntityStream();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        context.setEntityStream(baos);
         
            LOG.info("Payload output Stream(Response with Payload, ContainerResponseContext) : " + baos.toString());
            baos.writeTo(originalStream);
            baos.close();
            context.setEntityStream(originalStream);
        }

调用上面的“getResponseBody”方法如下：

@Override
    public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext)
            throws IOException {
        
        
          if(responseContext.hasEntity()) { getResponseBody(responseContext); }
         
        
        responseContext.getHeaders();
        LOG.info("--------Start Response without Payload content--------");
        
        
        LOG.info("Response Details: Response status:" + responseContext.getStatus()+
                " ,Response Info:"+responseContext.getStatusInfo());
        
        
          MultivaluedMap<String, Object> map = responseContext.getHeaders();
          for (Entry<String, List<Object>> entry : map.entrySet()) { 
              String k = entry.getKey(); List<Object> v = entry.getValue(); 
          LOG.info("Key Response: " + k + ", Response Value: " + v); }
          
          if(responseContext.hasEntity()) {
              getResponseBody(responseContext);
          }
         
          LOG.info("--------End Response without Payload content--------");
        
    }