新建javaProject，导入相关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-1.1.1.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

新建一个类HelloWorld.java

package cn.baokx.spring.aop.helloworld;import org.springframework.stereotype.Component;@Componentpublic class HelloWorld {	public int divide(int i,int j){		return i/j; 	}}

添加Spring配制文件applicationContext.xml

新建一个切面LoggingAspect.java

package cn.baokx.spring.aop.helloworld;import java.util.Arrays;import java.util.List;import org.aspectj.lang.JoinPoint;import org.aspectj.lang.ProceedingJoinPoint;import org.aspectj.lang.annotation.After;import org.aspectj.lang.annotation.AfterReturning;import org.aspectj.lang.annotation.AfterThrowing;import org.aspectj.lang.annotation.Around;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.annotation.Before;import org.aspectj.lang.annotation.Pointcut;import org.springframework.core.annotation.Order;import org.springframework.stereotype.Component;//把类交由IOC容器管理且声明为一个切面@Component@Aspect//切面的优先级，值越小，优先级越高 @Order(1)public class LoggingAspect {		//切入点表达式	@Pointcut("execution(public int cn.baokx.spring.aop.helloworld.HelloWorld.divide(int,int))")	public void declareJointPointExpression(){}		//声明为前置通知:在目标方法开始之前执行	@Before("declareJointPointExpression()")	public void beforeMethod(JoinPoint joinPoint){		String methodName = joinPoint.getSignature().getName();		List

创建Main.java类进行测试

package cn.baokx.spring.aop.helloworld;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Main {	public static void main(String[] args) {		ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");		HelloWorld helloWorld = (HelloWorld) ctx.getBean("helloWorld");		int result = helloWorld.divide(10, 2);		result = helloWorld.divide(10, 0);	}}