Spring的无接口署理实现AOP
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2019-06-14

Spring的无接口署理实现AOP

Spring的无接口署理实现AOP

package com.rx.spring.cglib;
public class UserManagerImpl { // implements UserManager {
  public void addUser(String username, String password) {
    System.out.println("-------UserManagerImpl.addUser()----------");
  }
  public void deleteUser(int id) {
    System.out.println("-------UserManagerImpl.deleteUser()----------");
  }
}
package com.rx.spring.cglib;
import org.aspectj.lang.JoinPoint;
public class SecurityHandler {
  private void checkSecurity(JoinPoint joinPoint) {
    Object[] args = joinPoint.getArgs();
    for (int i=0; i<args.length; i++) {
      System.out.println(args[i]);
    }
    System.out.println(joinPoint.getSignature().getName());
    System.out.println("----------checkSecurity()---------------");
  }
}
package com.rx.spring.cglib;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Client {
  public static void main(String[] args) {
    BeanFactory factory = new ClassPathXmlApplicationContext("applicationContextCglib.xml");
    UserManagerImpl userManager = (UserManagerImpl)factory.getBean("userManager");
    userManager.addUser("abc", "123");
    System.out.println("testing");
    userManager.deleteUser(1);
  }
}
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:aop="http://www.springframework.org/schema/aop"
     xmlns:tx="http://www.springframework.org/schema/tx"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
      http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
      http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">
  <!--
  <aop:aspectj-autoproxy proxy-target-class="true"/>
   -->
  <bean id="securityHandler" class="com.rx.spring.cglib.SecurityHandler"/>
  <bean id="userManager" class="com.rx.spring.cglib.UserManagerImpl"/>
  <aop:config>
    <aop:aspect id="security" ref="securityHandler">
      <aop:pointcut id="allAddMethod" expression="execution(* com.rx.spring.cglib.UserManagerImpl.add*(..))"/>
      <aop:before method="checkSecurity" pointcut-ref="allAddMethod"/>
    </aop:aspect>
  </aop:config>
</beans>

Spring的无接口代理实现AOP

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