Spring AOP 实例2

最新推荐文章于 2025-02-24 04:38:00 发布

Benson2012

最新推荐文章于 2025-02-24 04:38:00 发布

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本文链接：https://blog.youkuaiyun.com/sybww/article/details/23440383

本文介绍如何在Spring框架中使用正则表达式来定义切入点，并通过代理工厂实现AOP增强。

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RegexPointcut .java

package com.studyspring.ch3;

import org.springframework.aop.Advisor;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.aop.support.JdkRegexpMethodPointcut;

public class RegexPointcut {

public static void main(String[] args) {
  MultipleMethod target=new MultipleMethod();
  JdkRegexpMethodPointcut pc=new JdkRegexpMethodPointcut();
  pc.setPattern(".*get.*");
  Advisor advisor=new DefaultPointcutAdvisor(pc,new BeforeAdvicetest());

  ProxyFactory pf=new ProxyFactory();
  pf.addAdvisor(advisor);
  pf.setTarget(target);
  MultipleMethod proxy=(MultipleMethod)pf.getProxy();

  proxy.setAge(25);
  proxy.setName("David");
  proxy.setTitle("xiaodongxi@sahu.com");
  proxy.getAge();
  proxy.getName();
  proxy.getTitle();
}

}

MultipleMethod.java

package com.studyspring.ch3;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class MultipleMethod {
private Log log=LogFactory.getLog(MultipleMethod.class);
private String name;
private int age;
private String title;
public int getAge() {
  log.info("我们处理get方法");
  System.out.println("我们处理get方法");
  return age;
}
public void setAge(int age) {
  log.info("我们处理set方法");
  System.out.println("我们处理set方法");
  this.age = age;
}
public String getName() {
  log.info("我们处理get方法");
  System.out.println("我们处理get方法");
  return name;
}
public void setName(String name) {
  log.info("我们处理set方法");
  System.out.println("我们处理set方法");
  this.name = name;
}
public String getTitle() {
  log.info("我们处理get方法");
  System.out.println("我们处理get方法");
  return title;
}
public void setTitle(String title) {
  log.info("我们处理set方法");
  System.out.println("我们处理set方法");
  this.title = title;
}
}

BeforeAdvicetest.java

package com.studyspring.ch3;

import java.lang.reflect.Method;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.aop.MethodBeforeAdvice;
import org.springframework.aop.framework.ProxyFactory;
public class BeforeAdvicetest implements MethodBeforeAdvice{

/**
* @param args
*/
private Log log=LogFactory.getLog(BeforeAdvicetest.class);

public void before(Method method, Object[] arg, Object target) throws Throwable {
log.info("Now we use before advice");
System.out.println("Now we use before advice");
}

}