spring aop

一、 注解方式

1.CutPointInterface

public interface CutPointInterface {
    void method();
}

2.CutPointClass 

@Component
public class CutPointClass implements CutPointInterface {

    @Override
    public void method() {
        // TODO Auto-generated method stub
        System.out.println("切点类");
    }

}

3.AspectClass 

@Aspect
public class AspectClass {
    
    @Pointcut("execution(* com.lzp.annotationAop.CutPointInterface.method(..))")
    public void method(){
        
    }
    
    @Before("method()")
    public void before(){
        System.out.println("之前");
    }
    @After("method()")
    public void after(){
        System.out.println("之后");
    }
    
    
}

4.xml

<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"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
                         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                         http://www.springframework.org/schema/context
                         http://www.springframework.org/schema/context/spring-context-3.0.xsd
                         http://www.springframework.org/schema/tx
                         http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
                         http://www.springframework.org/schema/aop 
                         http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
    <bean id="cutPointClass" class="com.lzp.annotationAop.CutPointClass"></bean>
    <bean id="aspectClass" class="com.lzp.annotationAop.AspectClass"></bean>
 <aop:aspectj-autoproxy proxy-target-class="true"/>
 
</beans>

5.mainTest

    ApplicationContext context = new ClassPathXmlApplicationContext(
                "annotationAop.xml");
        CutPointInterface cutPoint=    (CutPointInterface) context.getBean("cutPointClass");
        cutPoint.method();

 注意jdk和aspect版本

JDK1.6 —— aspectJ1.6

JDK1.7 —— aspectJ1.7.3+

参考：http://www.cnblogs.com/xing901022/p/4267563.html

二、xml配置方式

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">

<bean id="logger" class="com.lzp.mySpringAOP.WriterLogger" />

    <bean id="loan" class="com.lzp.mySpringAOP.TestLoan" />
    <bean id="person" class="com.lzp.mySpringAOP.Person">
        <constructor-arg name="name" value="小名"></constructor-arg>
    </bean>


    <aop:config>
 
        <!-- 捕获带参数的方法执行 -->
        <aop:aspect ref="logger">
            <aop:pointcut
                expression="execution(* com.lzp.mySpringAOP.Loan.transfer(com.lzp.mySpringAOP.Person,java.lang.Double)) and args(person,amount)"
                id="myPointCut" />
            <aop:before method="transfer" pointcut-ref="myPointCut"
                arg-names="person,amount" />
        </aop:aspect>
    </aop:config>

public interface Loan {
    void transfer(Person person,Double amount);
}

public class TestLoan implements Loan {

    @Override
    public void transfer(Person person,Double amount) {
        System.out.println("转账完成");
    } 
}


public class WriterLogger implements Loan {
    @Override
    public void transfer(Person person, Double amount) {
        // TODO Auto-generated method stub
         System.out.println(person.getName()+"即将转账金额为"+amount);
    }
}

public class Person {
    private String name;

    public Person(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
    
}