SpringAOP配置与使用（示例）

1、pom.xml追加

spring-aspects

aspectjrt

为控制器以外的类织入切面

2、新建spring-aop.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop.xsd">

    <context:component-scan base-package="io.deolin.demoapp.service" />

    <aop:aspectj-autoproxy />

    <bean class="io.deolin.demoapp.aspect.ServiceAspect" />

</beans>

扫描控制层以外的包

3、新建切面

@Aspect
public class ServiceAspect extends AspectCommon {

    Logger log = LogManager.getLogger(ServiceAspect.class);

    @Pointcut("execution(* io.deolin.demoapp.service.*.*(..))")
    public void performance() {}

    @Before("performance()")
    public void before(JoinPoint joinPoint) {
        log.info(getFinger(joinPoint) + " 业务开始");
    }

    @AfterReturning("performance()")
    public void afterReturning(JoinPoint joinPoint) {
        log.info(getFinger(joinPoint) + " 业务结束");
    }

    @AfterThrowing(value = "performance()", throwing = "e")
    public void afterThrowing(JoinPoint joinPoint, Throwable e) throws Throwable {
        log.error(getFinger(joinPoint) + " 业务异常 " + e.getClass().getSimpleName());
    }

}

abstract public class AspectCommon {

    protected String getFinger(JoinPoint joinPoint) {
        String className = joinPoint.getTarget().getClass().getSimpleName();
        String mehtodName = joinPoint.getSignature().getName();
        return className + "#" + mehtodName;
    }

}

为控制器织入切面

4、dispatcherservlet-servlet.xml追加

    <!-- 控制层AOP -->
    <aop:aspectj-autoproxy proxy-target-class="true" />
    <bean class="io.deolin.demoapp.aspect.ControllerAspect" />

5、新建切面

@Aspect
public class ControllerAspect extends AspectCommon {

    Logger log = LogManager.getLogger(ControllerAspect.class);

    @Pointcut("execution(* io.deolin.demoapp.controller.*.*(..))")
    public void performance() {}

    @Before("performance()")
    public void before(JoinPoint joinPoint) {
        log.info(getFinger(joinPoint) + " 请求开始");
    }

    @AfterReturning("performance()")
    public void afterReturning(JoinPoint joinPoint) {
        log.info(getFinger(joinPoint) + " 请求结束");
    }

}