在springboot错误默认是跳转到 请求返回渲染路径中的error/错误页面中。

源码分析：DefaultErrorViewResolver.java

private ModelAndView resolve(String viewName, Map<String, Object> 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); }

比如在application.properites中配置渲染页面为

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

如果不配置spring.freemarker.template-loader-path,springboot会在src/main/resources中的templates中的error文件下下找错误渲染的页面。

那么当出现错误时，系统会跳转到/WEB-INF/error/错误页面中。

使用AOP进行web层异常处理

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@Componentpublic 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; }}

总结

以上所述是小编给大家介绍的Spring Boot中使用AOP统一处理web层异常，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！