spring AOP学习笔记

public class User {
    private int id;
    private String name;
    private int age;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
}
  

 

 

 

public interface UserManager {

    public void aadUser(User user);
    
    public void deleteById(int id);
    
    public void updateUser(User user);
    
    public User findById(int id);
}
 

public class UserManagerImp implements UserManager {

    @Override
    public void aadUser(User user) {
        System.out.println("----------addUser------------");
    }

    @Override
    public void deleteById(int id) {
        System.out.println("----------deleteById------------");
    }

    @Override
    public User findById(int id) {
        System.out.println("----------findById------------");
        return null;
    }

    @Override
    public void updateUser(User user) {
        System.out.println("----------updateUser------------");
    }

}
 

public class SecurityHandler {
    public void checkSecurity(){
        System.out.println("-----------checkSecurity()----------");
    }
}
 

public class TestMain{

    public static void main(String[] args) throws Exception{
        //产生一个安全代理的对象方法
        ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
        
        UserManager userManager = (UserManager)ctx.getBean("userManager");
        
        User user = new User();
        user.setAge(23);
        user.setId(1);
        user.setName("huangbiao");
        
        userManager.aadUser(user);
    }
}
 

<bean id="userManager" class="hb.com.UserManagerImp" />
    <bean id="securityHandler" class="hb.com.SecurityHandler" />
    <aop:config>
        <aop:aspect id="asp" ref="securityHandler">
            <aop:pointcut id="allAddMethod" expression="execution(* hb.com.UserManagerImp.*(..))" />
            <aop:before method="checkSecurity" pointcut-ref="allAddMethod"/>
        </aop:aspect>
    </aop:config>
</beans>

 spring AOP术语：
 aspect----实现切面的类（SecurityHandler）
 advice----before after (实现切面的方法)
 pointcut----(过滤条件)指定横切的方法(add*())
 weave ---- 把advice应用到目标方法上的过程叫做织入
 target Object----目标对象
 Proxy ----代理
 Introduction ----动态添加方法