Spring Boot中使用AOP统一处理web层异常的教程

 private ModelAndView resolve(String viewName, Map model) {
 String errorViewName = "error/" + viewName;
 TemplateAvailabilityProvider provider = this.templateAvailabilityProviders
  .getProvider(errorViewName, this.applicationContext);
 if (provider != null) {
  return new ModelAndView(errorViewName, model);
 }
 return resolveResource(errorViewName, model);
 }

#配置freemaker
spring.freemarker.template-loader-path=/WEB-INF/

package com.niugang.aop;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.servlet.ModelAndView;
/**
 * controller层统一异常处理
 * 
 * @author niugang
 *
 */
@Aspect
@Component
public class ExceptionControllerAscept {
 private Logger logger = LoggerFactory.getLogger(ExceptionControllerAscept.class);
 /**
 * 匿名切点的方式
 * 
 * @param ex
 * @throws ServletException
 * @throws IOException
 */
 @AfterThrowing(value = "execution(public * com.niugang.controller..*.*(..))", throwing = "ex")
    public ModelAndView aroundAdvice(Exception ex) throws ServletException, IOException {
 ModelAndView modelAndView = new ModelAndView();
 RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
 ServletRequestAttributes r = (ServletRequestAttributes) requestAttributes;
 HttpServletRequest request = r.getRequest();
 modelAndView.setViewName("500");
 // 第一如果是 RuntimeException
 if (ex instanceof RuntimeException) {
  logger.error("抛出运行时异常{}", ex.getMessage());
  modelAndView.addObject("exception", ex.getMessage());
  // 跳转到错误页面
  modelAndView.addObject("url", request.getRequestURL());
  return modelAndView;
 }
 modelAndView.addObject("exception","未知异常");
 return modelAndView;
 }
}