四种常用的通知类型(xml)

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion> <groupId>com.ly.spring</groupId>
<artifactId>spring05</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.0.2.RELEASE</version>
</dependency>
<!--用于解析切入点表达式-->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.6</version>
</dependency>
<!--用于整合junit-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.0.2.RELEASE</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency> </dependencies>
<!--解决IDEA maven变更后自动重置LanguageLevel和JavaCompiler版本的问题-->
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>13</source>
<target>13</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

package com.ly.spring.domain;import java.io.Serializable;public class Account implements Serializable {
}

package com.ly.spring.service;import com.ly.spring.domain.Account;import java.util.List;public interface IAccountService {
public List<Account> findAll();
}

package com.ly.spring.service.impl;import com.ly.spring.domain.Account;
import com.ly.spring.service.IAccountService;
import org.springframework.stereotype.Service;import java.util.List;
@Service("accountService")
public class AccountServiceImpl implements IAccountService {
@Override
public List<Account> findAll() {
System.out.println("AccountServiceImpl---findAll");
int i= 1/0;
return null;
}
}

package com.ly.spring.utils;import org.springframework.stereotype.Component;@Component("logUtil")
public class LogUtil {
public void beforeFunc() {
System.out.println("---前置通知---");
}
public void afterReturnFunc() {
System.out.println("---后置通知---");
}
public void afterThrowFunc() {
System.out.println("---异常通知---");
}
public void afterFunc() {
System.out.println("--最终通知--");
}
}

<?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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<!--配置注解扫描的包-->
<context:component-scan base-package="com.ly.spring"></context:component-scan>
<!--aop相关配置-->
<aop:config>
<!--id指定通知的id，ref指定通知bean-->
<aop:aspect id="logAdvisor" ref="logUtil">
<!--配置通知类型，method指定调用通知bean的方法，pointcut-ref指定切入点表达式-->
<!--前置通知，在目标方法执行前执行-->
<aop:before method="beforeFunc" pointcut-ref="logPointCut"></aop:before>
<!--后置通知，在目标方法执行后执行，若目标方法抛出异常，则不会执行-->
<aop:after-returning method="afterReturnFunc" pointcut-ref="logPointCut"></aop:after-returning>
<!--异常通知，在目标方法抛出异常后执行-->
<aop:after-throwing method="afterThrowFunc" pointcut-ref="logPointCut"></aop:after-throwing>
<!--最终通知，不论目标方法是否抛出异常，都会执行-->
<aop:after method="afterFunc" pointcut-ref="logPointCut"></aop:after>
<!--配置切入点表达式-->
<!--
1、若配置在aop:aspect标签内则只对当前切面有效
2、可以配置在aop:aspect标签外，此时aop:pointcut标签必须配置在所有的aop:aspect标签前面，对所有的切面有效
-->
<aop:pointcut id="logPointCut" expression="execution(* com.ly.spring.service.impl.*.*(..))"/>
</aop:aspect>
</aop:config>
</beans>

package com.ly.spring.test;import com.ly.spring.domain.Account;
import com.ly.spring.service.IAccountService;
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;
//替换junit的main方法
@RunWith(SpringJUnit4ClassRunner.class)
//指定spring配置文件的位置
@ContextConfiguration(locations = "classpath:bean.xml")
public class MainTest {
@Autowired
private IAccountService accountService;
@Test
public void test1() {
accountService.findAll();
}
}