为什么全局异常处理无法处理筛选器中引发的异常？

Question

为什么全局异常处理不能处理过滤器中抛出的异常?

我的代码现在看起来是这样的:

1. 筛选方法

   @Override
   public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
   HttpServletRequest   httpServletRequest = (HttpServletRequest) servletRequest;
   String token = httpServletRequest.getHeader("token");
   if (token==null)
   throw new NoTokenException();
   try {
   String s = jwtToken.parseJwt(token);
   httpServletRequest.setAttribute("id",s);
   }catch (Exception e){
   throw new RuntimeException();
   }
   filterChain.doFilter(servletRequest,servletResponse);
   }
   

2. 控制器通知类

   @RestControllerAdvice
   public class GlobalExceptionHandle {
   @ExceptionHandler(Exception.class)
   public void Handle(Exception e, HttpServletResponse response) throws IOException {
   response.setContentType("application/json;charset=UTF-8");
   response.getWriter().write("msg");
   response.flushBuffer();
   }
   }
   

Answer 1

@RestControllerAdvice不能用于过滤器。对于它们，您需要实现一个额外的过滤器，如https://stackoverflow.com/a/34633687/16572295.

所示。