小程序三方平台开发: 解析小程序开发的未来趋势和机遇
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2023-03-20
Spring基于advisor配置aop过程解析
1、目标类
package com.gec.target;
public class Hadoop {
public void eatting() {
System.out.println("大象正在吃东西 1");
try {
//耗时5秒
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
2、增强类,此类必须要实现增强方位接口
package com.gec.advice;
import org.springframework.aop.MethodBeforeAdvice;
import java.lang.reflect.Method;
public class BeforeMethodAdvice implements MethodBeforeAdvice {
@Override
public void before(Method method, Object[] objects, Object o) throws Throwable {
System.out.println("how are you");
}
}
3、配置文件
xmlns:xsi="http://w3.org/2001/XMLSchema-instance" xmlns:p="http://springframework.org/schema/p" xmlns:context="http://springframework.org/schema/context" xmlns:util="http://springframework.org/schema/util" xmlns:aop="http://springframework.org/schema/aop" xsi:schemaLocation="http://springframework.org/schema/behttp://ans http://springframework.org/schema/beans/spring-beans-4.3.xsd http://springframework.org/schema/util http://springframework.org/schema/util/spring-util-4.3.xsd http://springframework.org/schema/context http://springframework.org/schema/context/spring-context-4.3.xsd http://springframework.org/schema/aop http://springframework.org/schema/aop/spring-aop-4.3.xsd"> &lhttp://t;/beans> 4、测试 public static void main(String[] args) { ApplicationContext ctx=new ClassPathXmlApplicationContext("beans.xml"); Hadoop hadoop= (Hadoop) ctx.getBean("hadoop"); hadoop.eatting(); }
xmlns:xsi="http://w3.org/2001/XMLSchema-instance"
xmlns:p="http://springframework.org/schema/p"
xmlns:context="http://springframework.org/schema/context"
xmlns:util="http://springframework.org/schema/util"
xmlns:aop="http://springframework.org/schema/aop" xsi:schemaLocation="http://springframework.org/schema/behttp://ans
http://springframework.org/schema/beans/spring-beans-4.3.xsd http://springframework.org/schema/util http://springframework.org/schema/util/spring-util-4.3.xsd http://springframework.org/schema/context http://springframework.org/schema/context/spring-context-4.3.xsd
http://springframework.org/schema/aop http://springframework.org/schema/aop/spring-aop-4.3.xsd">
&lhttp://t;/beans>
4、测试
public static void main(String[] args) {
ApplicationContext ctx=new ClassPathXmlApplicationContext("beans.xml");
Hadoop hadoop= (Hadoop) ctx.getBean("hadoop");
hadoop.eatting();
}
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