在springboot錯誤默認是跳轉到請求返回渲染路徑中的error/錯誤頁面中。
源碼分析: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中配置渲染頁面為
#配置freemakerspring.freemarker.template-loader-path=/WEB-INF/
如果不配置spring.freemarker.template-loader-path,springboot會在src/main/resources中的templates中的error文件下下找錯誤渲染的頁面。
那麼當出現錯誤時,系統會跳轉到/WEB-INF/error/錯誤頁面中。
使用AOP進行web層異常處理
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層統一異常處理* * @author niugang * */@Aspect@Componentpublic class ExceptionControllerAscept { private Logger logger = LoggerFactory.getLogger(ExceptionControllerAscept.class); /** * 匿名切點的方式* * @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("拋出運行時異常{}", ex.getMessage()); modelAndView.addObject("exception", ex.getMessage()); // 跳轉到錯誤頁面modelAndView.addObject("url", request.getRequestURL()); return modelAndView; } modelAndView.addObject("exception","未知異常"); return modelAndView; }}總結
以上所述是小編給大家介紹的Spring Boot中使用AOP統一處理web層異常,希望對大家有所幫助,如果大家有任何疑問請給我留言,小編會及時回復大家的。在此也非常感謝大家對武林網網站的支持!