spring AOP只拦截某个类中某个方法

参考链接：https://www.yiibai.com/spring/spring-aop-example-pointcut-advisor.html

• Advice – 指示之前或方法执行后采取的行动。
• Pointcut– 指明哪些方法应该拦截，通过方法的名称或正则表达式模式。
• Advisor – 分组"通知"和”切入点“成为一个单元，并把它传递到代理工厂对象

拦截constomService中print方法

constomService:

package com.crud.spring.service;

public class CustomerService {
    private String name;
    private String url;

    public void setName(String name) {
        this.name = name;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public void printName() {
        System.out.println("Customer name : " + this.name);
    }

    public void printURL() {
        System.out.println("Customer website : " + this.url);
    }

    public void printThrowException() {
        throw new IllegalArgumentException();
    }

}

hijackAroundMethodBeanAdvice:

package com.crud.spring.aop;

import java.util.Arrays;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;

public class HijackAroundMethod implements MethodInterceptor {
   @Override
   public Object invoke(MethodInvocation methodInvocation) throws Throwable {

      System.out.println("Method name : "
            + methodInvocation.getMethod().getName());
      System.out.println("Method arguments : "
            + Arrays.toString(methodInvocation.getArguments()));

      System.out.println("HijackAroundMethod : Before method hijacked!");

      try {
         Object result = methodInvocation.proceed();
         System.out.println("HijackAroundMethod : Before after hijacked!");

         return result;

      } catch (IllegalArgumentException e) {

         System.out.println("HijackAroundMethod : Throw exception hijacked!");
         throw e;
      }
   }
}

xml:

<?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:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <bean id="customerService" class="com.crud.spring.service.CustomerService">
        <property name="name" value=" YiiBaii Mook Kim"></property>
        <property name="url" value=" http://www.yiibai.com"></property>
    </bean>


    <bean id="hijackAroundMethodBeanAdvice" class="com.crud.spring.aop.HijackAroundMethod" />

    <bean id="customerServiceProxy" class="org.springframework.aop.framework.ProxyFactoryBean">
        <property name="target" ref="customerService" />
        <property name="interceptorNames">
            <list>
                <value>customerAdvisor</value>
            </list>
        </property>
    </bean>

    <bean id="customerCut"
          class="org.springframework.aop.support.NameMatchMethodPointcut">
        <property name="mappedName" value="printName" />
    </bean>

    <bean id="customerAdvisor"
          class="org.springframework.aop.support.DefaultPointcutAdvisor">
        <property name="pointcut" ref="customerCut" />
        <property name="advice" ref="hijackAroundMethodBeanAdvice" />
    </bean>

</beans>

测试：

package com.crud.spring.test;

import com.crud.spring.service.CustomerService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    public static void main(String[] args) {

        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        CustomerService cust = (CustomerService) applicationContext.getBean("customerServiceProxy");

        System.out.println("*************************");
        cust.printName();
        System.out.println("*************************");
        cust.printURL();
        System.out.println("*************************");
        try {
            cust.printThrowException();
        } catch (Exception e) {

        }

    }
}