为什么全局异常处理不能处理过滤器中抛出的异常？

Question

为什么全局异常处理不能处理过滤器中抛出的异常？

我的代码现在是这样的：

1. 过滤方法

    @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. 控制器建议类

    @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 不适用于过滤器。对于他们，您需要实现一个额外的过滤器，如https://stackoverflow.com/a/34633687/16572295 中所述。