基于注解的Spring AOP

[1] 导入jar包

com.springsource.net.sf.cglib-2.2.0.jar com.springsource.org.aopalliance-1.0.0.jar com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar commons-logging-1.1.3.jar hamcrest-core-1.3.jar junit-4.12.jar spring-aop-4.0.0.RELEASE.jar spring-aspects-4.0.0.RELEASE.jar spring-beans-4.0.0.RELEASE.jar spring-context-4.0.0.RELEASE.jar spring-core-4.0.0.RELEASE.jar spring-expression-4.0.0.RELEASE.jar

[2] 创建被代理类

由于我们加入了cglib的支持，所以允许被代理类不实现任何接口。但是必须加入IOC容器，否则Spring没法控制和操作。

[3] 创建切面类

@Aspect
@Component
public class LogAspect {
​
    @Before(value=”execution(* com.atguigu.spring.aop.target.Calculator.*(..))”)
    public void doBeforeLog() {
        System.out.println(“[aop log]method begin”);
    }
​
    @AfterReturning(value=”execution(* com.atguigu.spring.aop.target.Calculator.*(..))”)
    public void doSuccessLog() {
        System.out.println(“[aop log]method successfully end”);
    }
​
    @AfterThrowing(value=”execution(* com.atguigu.spring.aop.target.Calculator.*(..))”)
    public void doExceptionLog() {
        System.out.println(“[aop log]method ended with exception”);
    }
​
    @After(value=”execution(* com.atguigu.spring.aop.target.Calculator.*(..))”)
    public void doAfterLog() {
        System.out.println(“[aop log]method finally end”);
    }
}

[4] 配置Spring配置文件

[5] junit测试