Spring入門Blog[九、Spring Aop 用xml的方式實現] – JAVA編程語言程序開發技術文章

學習完瞭Spring AOPAnnotation之後在再學xml方式的我覺得就很簡明易懂瞭。這個案例不再將一些細節性的問題再次敘述,請看案例代碼,如下所示:

1、 編寫被代理對象:

[java] 
import org.springframework.stereotype.Component; 
import com.spring.dao.UserDao; 
 
@Component("userService") 
public class UserServiceImpl implements UserService{ 
    private UserDao userDao; 
     
    public void setUserDao(UserDao userDao) { 
        this.userDao = userDao; 
    } 
     
    //在下面方法前面加邏輯 
    public void HelloWorld(){ 
        System.out.println("helloworld"); 
    } 

2、編寫配置文件:

[html] 
<?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" 
       xmlns:aop="http://www.springframework.org/schema/aop" 
       xsi:schemaLocation="http://www.springframework.org/schema/beans  
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
           http://www.springframework.org/schema/context 
           http://www.springframework.org/schema/context/spring-context-2.5.xsd 
           http://www.springframework.org/schema/aop 
           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd" > 
    <context:annotation-config/> 
    <!– 配置容器資源掃描的包 –> 
   <context:component-scan base-package="com.spring" /> 
    <!– 將前面類寫入容器 –> 
    <bean id="logInterceptor" class="com.spring.aop.LogInterceptor" /> 
    <!– 配置AOP –> 
    <aop:config> 
        <!– 聲明pointcut –> 
        <aop:pointcut expression="execution(public * com.spring.service..*.*(..))" id="servicepoint" /> 
        <!– 聲明切面類 –> 
        <aop:aspect id="aspectLog" ref="logInterceptor"> 
            <aop:before method="BeforeMethod" pointcut-ref="servicepoint"/> 
            <aop:after-returning method="AfterMethod" pointcut-ref="servicepoint"/> 
            <aop:around method="aroundProcced" pointcut-ref="servicepoint"/> 
        </aop:aspect> 
    </aop:config> 
</beans> 
3、編寫測試文件:

[java] 
package com.spring.test; 
 
import org.junit.Test; 
import org.springframework.beans.factory.BeanFactory; 
import org.springframework.context.support.ClassPathXmlApplicationContext; 
import com.spring.service.UserService; 
 
public class SpringTest { 
    @Test 
    public void test01() { 
        BeanFactory applicationContext = new ClassPathXmlApplicationContext( 
                "beans.xml"); 
        UserService user = (UserService) applicationContext.getBean("userService"); 
        user.HelloWorld(); 
    } 

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