SpringMVC记录我遇到的坑_AOP注解无效,切面不执行的解决

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" />

来源：https://blog.csdn.net/z781582206/article/details/77894774