Spring 面向切面(XML)

Maven配置文件

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>org.jinglun</groupId>
  <artifactId>SpringInAction</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>SpringInAction Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <!-- Spring集成Junit-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.mockito</groupId>
        <artifactId>mockito-core</artifactId>
        <version>3.1.0</version>
        <scope>test</scope>
    </dependency>
    
    <!-- Spring Aop -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjweaver</artifactId>
        <version>1.9.4</version>
    </dependency>
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjrt</artifactId>
        <version>1.6.11</version>
    </dependency>
    
    <!-- Spring MVC -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>4.3.2.RELEASE</version>
    </dependency>
    <!-- Spring Core -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>4.3.2.RELEASE</version>
    </dependency>
    <!-- junit -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
    </dependency>

  </dependencies>
  <build>
    <finalName>SpringInAction</finalName>
  </build>
</project>

 

 

通知类：

Audience.java

package concert;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Aspect;

@Aspect
public class Audience {
    
    public void silenceCellPhones() {
        System.out.println("Silencing cell phones");
    }
    
    public void takeSeats() {
        System.out.println("Taking seats");
    }
    
    public void applause() {
        System.out.println("CLAP CLAP CLAP!!!");
    }
    
    public void demandRefund() {
        System.out.println("Demanding a refund");
    }

    public void watchPerformance(ProceedingJoinPoint jp) {
        try {
            System.out.println("Arround Start");
            jp.proceed();
            System.out.println("Arround End");
        } catch (Throwable e) {
            System.out.println("Demanding a refund");
        }
    }
}

 

切点：

Performance.java

package concert;

public interface Performance {
    public void perform();
}

 

PerformanceImpl.java

package concert;

import org.springframework.stereotype.Component;

@Component
public class PerformanceImpl implements Performance{

    public void perform() {
        System.out.println("perform");
    }
}

 

XML配置：

spring-service.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:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
                        http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 
                        http://www.springframework.org/schema/tx 
                        http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
                        http://www.springframework.org/schema/aop 
                        http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-4.2.xsd">

    <context:component-scan base-package="concert" />

    <aop:aspectj-autoproxy />

    <bean id="audience" class="concert.Audience"/>

    <aop:config>
        <aop:aspect ref="audience">
            <aop:pointcut 
                id="performance"
                expression="execution(* concert.Performance.perform(..))" />
            <aop:before
                pointcut-ref="performance"
                method="silenceCellPhones" />
            <aop:before
                pointcut-ref="performance"
                method="takeSeats" />
            <aop:after-returning
                pointcut-ref="performance"
                method="applause" />
            <aop:after-throwing
                pointcut-ref="performance"
                method="demandRefund" />
            <aop:around 
                pointcut-ref="performance"
                method="watchPerformance" />
        </aop:aspect>
    </aop:config>
</beans>

 

测试类：

PerformTest.java

package concert;

import static org.junit.Assert.assertNotNull;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:spring-service.xml"})
public class PerformTest {
    
    @Autowired
    private Performance perform;
    
    @Test
    public void play() {
        perform.perform();
        assertNotNull(perform);
    }
}