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siye@r480:~/svlution/workspace/springcore4322$ tree src/
src/
├── main
│ ├── java
│ │ ├── log4j.properties
│ │ └── ocn
│ │ └── site
│ │ └── springaop
│ │ ├── advice
│ │ │ └── LogUser.java
│ │ ├── setup
│ │ │ └── Appconfig.java
│ │ └── target
│ │ ├── PersonImpl.java
│ │ ├── Person.java
│ │ ├── UserImpl.java
│ │ └── User.java
│ └── resources
└── test
├── java
│ └── ocn
│ └── site
│ └── springaop
│ └── target
│ └── Runtest.java
└── resources
└── config
└── application.xml
17 directories, 9 files
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.22.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjrt -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.9.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.3.22.RELEASE</version>
<scope>test</scope>
</dependency>
package ocn.site.springaop.advice;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.DeclareParents;
import org.springframework.stereotype.Component;
import ocn.site.springaop.target.Person;
import ocn.site.springaop.target.PersonImpl;
//@Aspect // java-config配置的时候开启此注解
@SuppressWarnings("unused")
@Component
public class LogUser {
// 引入通知是aop中的一种技术实现,在实际使用中个人感觉很少使用。
// 此举仅作学习了解。
// @DeclareParents 向目标类,引入指定接口的实现
// value : 指定目标类,符号+表示接口的所有实现类
// defaultImpl : 引入指定接口的实现类
//
// 补充:测试环境中使用面向接口编程特性.
@DeclareParents(value = "ocn.site.springaop.target.User+", defaultImpl = PersonImpl.class)
public Person person;
}
package ocn.site.springaop.setup;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
@Configuration
@ComponentScan({ "ocn.site.springaop.advice", "ocn.site.springaop.target" })
@EnableAspectJAutoProxy(proxyTargetClass = true)
public class Appconfig {
}
package ocn.site.springaop.target;
public interface Person {
public void eat();
}
package ocn.site.springaop.target;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;
@Component
public class PersonImpl implements Person {
private final Logger logger = Logger.getLogger(this.getClass());
@Override
public void eat() {
logger.info("补充能量");
}
}
package ocn.site.springaop.target;
public interface User {
public void work();
}
package ocn.site.springaop.target;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;
@Component
public class UserImpl implements User {
private final Logger logger = Logger.getLogger(this.getClass());
@Override
public void work() {
logger.info("工作任务");
}
}
package ocn.site.springaop.target;
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.SpringRunner;
import ocn.site.springaop.setup.Appconfig;
@SuppressWarnings("unused")
@RunWith(SpringRunner.class)
//@ContextConfiguration(classes = Appconfig.class)
@ContextConfiguration("classpath:config/application.xml")
public class Runtest {
private @Autowired User user;
@Test
public void run() throws Exception {
user.work();
Person person = (Person) user;
person.eat();
}
}
<?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
<aop:aspectj-autoproxy proxy-target-class="true"></aop:aspectj-autoproxy>
<bean class="ocn.site.springaop.target.UserImpl"></bean>
<bean class="ocn.site.springaop.target.PersonImpl"></bean>
<bean id="logUser" class="ocn.site.springaop.advice.LogUser"></bean>
<aop:config>
<aop:aspect ref="logUser">
<aop:declare-parents types-matching="ocn.site.springaop.target.User+"
implement-interface="ocn.site.springaop.target.Person" default-impl="ocn.site.springaop.target.PersonImpl" />
</aop:aspect>
</aop:config>
</beans>
19-09-06 10:51:38 org.springframework.test.context.support.DefaultTestContextBootstrapper =====>>> Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [org.springframework.test.context.web.ServletTestExecutionListener, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener, org.springframework.test.context.support.DependencyInjectionTestExecutionListener, org.springframework.test.context.support.DirtiesContextTestExecutionListener, org.springframework.test.context.transaction.TransactionalTestExecutionListener, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener]
19-09-06 10:51:38 org.springframework.test.context.support.DefaultTestContextBootstrapper =====>>> Using TestExecutionListeners: [org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@180bc464, org.springframework.test.context.support.DependencyInjectionTestExecutionListener@1324409e, org.springframework.test.context.support.DirtiesContextTestExecutionListener@2c6a3f77]
19-09-06 10:51:38 org.springframework.beans.factory.xml.XmlBeanDefinitionReader =====>>> Loading XML bean definitions from class path resource [config/application.xml]
19-09-06 10:51:38 org.springframework.context.support.GenericApplicationContext =====>>> Refreshing org.springframework.context.support.GenericApplicationContext@5034c75a: startup date [Fri Sep 06 10:51:38 CST 2019]; root of context hierarchy
19-09-06 10:51:39 ocn.site.springaop.target.UserImpl =====>>> 工作任务
19-09-06 10:51:39 ocn.site.springaop.target.PersonImpl =====>>> 补充能量
19-09-06 10:51:39 org.springframework.context.support.GenericApplicationContext =====>>> Closing org.springframework.context.support.GenericApplicationContext@5034c75a: startup date [Fri Sep 06 10:51:38 CST 2019]; root of context hierarchy