Spring的AOP使用xml配置

 

需要使用spring的包，大家自己全部导入进去即可。省4........

 

用户管理接口

1. package com.rx.spring;
2. 
   
3. public interface UserManager {
4. 
   
5.     public void addUser(String username, String password);
6.     
7.     public void deleteUser(int id);
8.     
9. 
   
10. }

用户管理实现

1. package com.rx.spring;
2. 
   
3. public class UserManagerImpl implements UserManager {
4. 
   
5.     public void addUser(String username, String password) {
6.         System.out.println("-------UserManagerImpl.addUser()----------");
7.     }
8. 
   
9.     public void deleteUser(int id) {
10.         System.out.println("-------UserManagerImpl.deleteUser()----------");
11.     }
12. 
    
13. }

 

切面

1. package com.rx.spring;
2. 
   
3. public class SecurityHandler {
4.     
5.     private void checkSecurity() {
6.         System.out.println("----------checkSecurity()---------------");
7.     }
8.     
9. }

 

applicationContext.xml内容如下：

1. <?xml version="1.0" encoding="UTF-8"?>
2. 
   
3. <beans xmlns="http://www.springframework.org/schema/beans"
4.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
5.          xmlns:aop="http://www.springframework.org/schema/aop"
6.          xmlns:tx="http://www.springframework.org/schema/tx"
7.          xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
8.            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
9.            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">
10.     
11.     <bean id="securityHandler" class="com.rx.spring.SecurityHandler"/>           
12.     
13.     <bean id="userManager" class="com.rx.spring.UserManagerImpl"/>
14.     
15.     <aop:config>
16.         <aop:aspect id="security" ref="securityHandler">
17.             <aop:pointcut id="allAddMethod" expression="execution(* com.rx.spring.UserManagerImpl.add*(..))"/>
18.             <aop:before method="checkSecurity" pointcut-ref="allAddMethod"/>
19.             <aop:after method="checkSecurity" pointcut-ref="allAddMethod"/>
20.         </aop:aspect>
21.     </aop:config>   
22. </beans>

客户端调用:

1. package com.rx.spring;
2. 
   
3. import org.springframework.beans.factory.BeanFactory;
4. import org.springframework.context.support.ClassPathXmlApplicationContext;
5. 
   
6. public class Client {
7. 
   
8.     public static void main(String[] args) {
9.         BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext.xml");
10.         
11.         UserManager userManager = (UserManager)factory.getBean("userManager");
12.         
13.         userManager.addUser("sd", "123");
14.         userManager.deleteUser(1);
15.     }
16. }

 

运行结果：

 

----------checkSecurity()---------------
-------UserManagerImpl.addUser()----------
----------checkSecurity()---------------
-------UserManagerImpl.deleteUser()----------