spring-AOP

xml配置
加上
xmlns

xmlns:context="http://www.springframework.org/schema/context

schema

http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-2.5.xsd

import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.springframework.stereotype.Component;

@Aspect
@Component
public class LogInterceptor {

	@Before("execution(public void org.spring.dao.impl.UserDaoImpl.save(org.spring.model.User))")
	public void before(){
		System.out.println("method before start print");
	}
}

随便写一个类，类似如上，当执行UserDaoImpl.save(User)之前都会执行before方法。