Spring------关于代理

Posted 2021-01-22 zhangxuuy

自动装配（基于顾问）

someService类

1 public class someService {
2     public void  list(){
3         System.out.println("list");
4     }
5     public  void add(){ System.out.println("add"); }
6 }

前置增强类

1 public class MyBeforeAdvice implements MethodBeforeAdvice {
2     @Override
3     public void before(Method method, Object[] args, Object target) throws Throwable {
4         System.out.println("before=============");
5     }
6 }

xml配置

 1 <bean id="someService" class="cn.Day11.someService"></bean>
 2     <!--增强-->
 3 <bean id="myBeforeAdvice" class="cn.Day11.MyBeforeAdvice"></bean>
 4     <!--顾问-->
 5     <bean id="myAdvisor" class="org.springframework.aop.support.NameMatchMethodPointcutAdvisor">
 6         <property name="advice" ref="myBeforeAdvice"></property>
 7         <property name="mappedNames" value="*li*"></property>
 8     </bean>
 9 
10 <!--自动代理-->
11     <bean id="proxyService" class="org.springframework.aop.framework.ProxyFactoryBean">
12         <property name="target" ref="someService"></property>
13         <property name="interceptorNames" value="myAdvisor"></property>
14     </bean>

测试类

1 public class Test11 {
2     @Test
3     public void zyy(){
4         ApplicationContext ctx=new ClassPathXmlApplicationContext("applicationContextDay11.xml");
5         someService service=(someService)ctx.getBean("proxyService");
6         service.list();
7         service.add();
8     }

测试结果

自动代理

 前两个类相同

xml文件（也可以用顾问）

 1 <bean id="someService" class="cn.Day12.someService"></bean>
 2     <!--增强-->
 3 <bean id="myBeforeAdvice" class="cn.Day12.MyBeforeAdvice"></bean>
 4     <!--顾问-->
 5     <bean id="myAdvisor" class="org.springframework.aop.support.NameMatchMethodPointcutAdvisor">
 6         <property name="advice" ref="myBeforeAdvice"></property>
 7         <property name="mappedNames" value="*li*"></property>
 8     </bean>
 9 
10 
11     <bean id="proxyService" class="org.springframework.aop.framework.ProxyFactoryBean">
12         <property name="target" ref="someService"></property>
13         <property name="interceptorNames" value="myAdvisor"></property>
14     </bean>
15 
16     <!--自动代理-->
17     <bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"></bean>

测试类

 1 public class Test12 {
 2     @Test
 3     public void De(){
 4             ApplicationContext ctx=new ClassPathXmlApplicationContext("applicationContextDay12.xml");
 5             someService service=(someService)ctx.getBean("someService");
 6             service.list();
 7             service.add();
 8 
 9     }
10 
11 }