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" />

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服务器之家。

原文链接：https://blog.csdn.net/z781582206/article/details/77894774