标签：http round beans code getbean oct image advice int
AroundAdvice
1、在方法之前和之后来执行相应的操作
2、实现MethodInterceptor接口
接口文件：
public interface IHello {
public void sayHello(String str);
}
public class Hello implements IHello {
@Override
public void sayHello(String str) {
System.out.println("你好"+str);
}
}
SayAroundAdvice文件：
public class SayAroundAdvice implements MethodInterceptor {
@Override
public Object invoke(MethodInvocation arg0) throws Throwable {
// TODO Auto-generated method stub
Object result=null;
System.out.println("Around在方法执行前做事情！");
result=arg0.proceed();
System.out.println("Around在方法执行后做事情！");
return result;
}
}
Main文件:
public class MainTest {
public static void main(String[] args) {
// TODO Auto-generated method stub
ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");
IHello hello=(IHello)context.getBean("helloProxy");
hello.sayHello("访客");
}
}
applicationContext.xml文件：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN"
"http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
<!-- 建立目标对象实例 -->
<bean id="bean_hello" class="com.pb.Hello" />
<!-- 创建Around advice实例 -->
<bean id="ssd" class="com.pb.SayAroundAdvice" />
<!-- 建立代理对象 -->
<bean id="helloProxy" class="org.springframework.aop.framework.ProxyFactoryBean">
<!-- 设置代理的接口 -->
<property name="proxyInterfaces">
<value>com.pb.IHello</value>
</property>
<!-- 设置目标对象实例 -->
<property name="target">
<ref bean="bean_hello"/>
</property>
<!-- 设置Advice实例 -->
<property name="interceptorNames">
<list>
<value>ssd</value>
</list>
</property>
</bean>
</beans>
执行效果：
标签：http round beans code getbean oct image advice int
原文地址：https://www.cnblogs.com/schangxiang/p/11145462.html
