这就是我所做的：
我在这里阅读了有关过滤器的基础知识，并且发现需要创建一个自定义过滤器，该过滤器将首先出现在过滤器链中，并且将尝试捕获所有可能在此发生的运行时异常。然后，我需要手动创建json并将其放入响应中。
所以这是我的自定义过滤器：
public class ExceptionHandlerFilter extends oncePerRequestFilter { @Override public void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException { try { filterChain.doFilter(request, response); } catch (RuntimeException e) { // custom error response class used across my project ErrorResponse errorResponse = new ErrorResponse(e); response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value()); response.getWriter().write(convertObjectToJson(errorResponse)); }} public String convertObjectToJson(Object object) throws JsonProcessingException { if (object == null) { return null; } ObjectMapper mapper = new ObjectMapper(); return mapper.writevalueAsString(object); }}然后我在之前将其添加到web.xml中
CorsFilter。而且有效！
<filter> <filter-name>exceptionHandlerFilter</filter-name> <filter-class>xx.xxxxxx.xxxxx.api.controllers.filters.ExceptionHandlerFilter</filter-class> </filter> <filter-mapping> <filter-name>exceptionHandlerFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <filter-name>CorsFilter</filter-name> <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> </filter> <filter-mapping> <filter-name>CorsFilter</filter-name> <url-pattern>/*</url-pattern></filter-mapping>
