SpringMVC记录我遇到的坑_AOP注解无效,切面不执行的解决
作者:z781582206
这篇文章主要介绍了SpringMVC记录我遇到的坑_AOP注解无效,切面不执行的解决方案,具有很好的参考价值,希望对大家有所帮助。如有错误或未考虑完全的地方,望不吝赐教
AOP注解无效,切面不执行的解决
想做一个api请求日志,想到使用aop,配置过程中遇到了一个坑,aop不起作用,
我的aop是这样的:
package com.ljwm.ibei.aspact; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.context.annotation.Configuration; 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 javax.servlet.http.HttpServletRequest; /** * Created by user on 2017/9/8. */ @Aspect @Configuration public class ApiRequestLog { private Logger _log = LoggerFactory.getLogger(ApiRequestLog.class); @Around("execution(* com.ljwm.ibei.controller.*.*(..))") public Object doAround(ProceedingJoinPoint pjp) throws Throwable { RequestAttributes ra = RequestContextHolder.getRequestAttributes(); ServletRequestAttributes sra = (ServletRequestAttributes) ra; HttpServletRequest request = sra.getRequest(); String url = request.getRequestURL().toString(); String method = request.getMethod(); String uri = request.getRequestURI(); String queryString = request.getQueryString(); _log.debug("请求开始, 各个参数, url: {}, method: {}, uri: {}, params: {}", url, method, uri, queryString); Object result = pjp.proceed(); return result; } }
配置文件分成applicationContext.xml、applicationContext-mvc.xml还有mybatis和shiro的
web.xml配置:
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <display-name>Archetype Created Web Application</display-name> <filter> <filter-name>shiroFilter</filter-name> <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> <init-param> <param-name>targetFilterLifecycle</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>shiroFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>spring-dispatcher</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/applicationContext-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring-dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/applicationContext*.xml</param-value> </context-param> <filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <listener> <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class> </listener> <listener> <listener-class>com.ljwm.ibei.listener.ContextFinalizer</listener-class> </listener> </web-app>
我把<aop:aspectj-autoproxy proxy-target-class="true"/>写在applicationContext中,把<context:component-scan> 和 <mvc:annotation-driven>写在applicationContext-mvc中,发现aop没有执行,后来经过尝试发现,因为在初始化DispatchServlet的时候加载了mvc的配置,但是aop的代理却没有加载,导致其不能执行,我猜测是因为spring默认bean是单例的,
对已经初始化的bean容器不在做后续处理,由于是先加载的mvc所以是aop失效,我把aop代理的那个放到mvc中,aop就能执行了,不知道我的猜测对不对,还望大神赐教
另一个问题:
springmvc在controller层使用aop切面不成功解决
需要在配置文件中加入
<aop:aspectj-autoproxy proxy-target-class="true" />
以上为个人经验,希望能给大家一个参考,也希望大家多多支持脚本之家。