我在SecurityConfig.java的configure方法中配置了自定义的失败处理类和JWT过滤器

在执行用户认证的时候由于token错误本应该到我自定义的异常处理类里执行，但是却没有过去

应该是被UsernamePasswordAuthenticationFilter直接拦截了，你看一下前台返回的错误是403应该，直接在前台加错误提示就好了

在后台拦截的话应该像下面这样写

http.csrf().disable()
.exceptionHandling().authenticationEntryPoint(new CustomAuthenticationEntryPoint())
 .accessDeniedHandler(new CustomAccessDenyHandler());

public class CustomAccessDenyHandler implements AccessDeniedHandler {

    @Override
    public void handle(HttpServletRequest request, HttpServletResponse response,
                       AccessDeniedException accessDeniedException) throws IOException, ServletException {
        response.setCharacterEncoding("utf-8");
        response.setContentType("text/javascript;charset=utf-8");
        response.getWriter().print(JSONObject.toJSONString(new ResponseDTO(994,"您不能访问当前页面")));
    }

}

public class CustomAuthenticationEntryPoint implements AuthenticationEntryPoint {

    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response,
                         AuthenticationException authException) throws IOException, ServletException {
        response.setCharacterEncoding("utf-8");
        response.setContentType("text/javascript;charset=utf-8");
        response.getWriter().print(JSONObject.toJSONString(new ResponseDTO(994,"登录超时，请重新进入此页面")));
    }

}