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Spring4-AOP通知
1.创建Maven项目,项目名称springdemo50,如图所示
2.配置Maven,修改项目中的pom.xml文件,修改内容如下
<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>1.0.0</modelVersion> <groupId>shequ</groupId> <artifactId>springdemo13</artifactId> <version>0.0.1-SNAPSHOT</version> <properties> <java.version>1.7</java.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> </properties> <repositories> <repository> <id>codelds</id> <url>https://code.lds.org/nexus/content/groups/main-repo</url> </repository> </repositories> <dependencies> <dependency> <groupId>javax.annotation</groupId> <artifactId>jsr250-api</artifactId> <version>1.0</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.10</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version> </dependency> </dependencies> <build/> </project>
3.在src/main/java下创建实体Bean Customer,包名(com.mycompany.shequ.bean)如图所示
4.实体Bean Customer的内容如下
package com.mycompany.shequ.bean;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
@Component("customerBean")
public class Customer {
private String name;
private String email;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
@Value("#{(‘dengyunshuo@163.com‘ matches ‘^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)" +
"*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$‘) ? ‘dengyunshuo@163.com‘:‘不合法‘}")
public void setEmail(String email) {
this.email = email;
}
}5.在src/main/java下创建接口ICustomerDao,包名(com.mycompany.shequ.dao)如图所示
6.ICustomerDao的内容如下
package com.mycompany.shequ.dao;
public interface ICustomerDao {
public void showMe();
}7.在src/main/java下创建ICustomerDao的实现类CustomerDaoImpl,包名
8.ICustomerDao的实现类CustomerDaoImpl的内容如下
package com.mycompany.shequ.dao.impl;
import com.mycompany.shequ.dao.ICustomerDao;
public class CustomerDaoImpl implements ICustomerDao {
public void showMe() {
System.out.println("I‘m CustomerDaoImpl");
}
}9.在src/main/java下创建业务Bean ICustomerService接口,包名(com.mycompany.shequ.service)如图所示
10.ICustomerService接口的内容如下
package com.mycompany.shequ.service;
public interface ICustomerService {
public void showMe();
}11.在src/main/java下创建业务Bean ICustomerService接口的实现类CustomerServiceImpl,包名(com.mycompany.shequ.service.impl)如图所示
12.业务Bean ICustomerService接口的实现类CustomerServiceImpl的内容如下
package com.mycompany.shequ.service.impl;
import com.mycompany.shequ.dao.ICustomerDao;
import com.mycompany.shequ.service.ICustomerService;
public class CustomerServiceImpl implements ICustomerService {
private ICustomerDao customerDao;
public ICustomerDao getCustomerDao() {
return customerDao;
}
public void setCustomerDao(ICustomerDao customerDao) {
this.customerDao = customerDao;
}
public void showMe() {
customerDao.showMe();
}
}13.在src/main/java下创建前置通知实现类MethodBefore,包名(com.mycompany.shequ.service.impl)如图所示
14.前置通知实现类MethodBefore的内容如下
package com.mycompany.shequ.service.impl;
import java.lang.reflect.Method;
import org.springframework.aop.MethodBeforeAdvice;
/**
* 方法执行前通知
* @author Administrator
*
*/
public class MethodBefore implements MethodBeforeAdvice {
public void before(Method arg0, Object[] arg1, Object arg2)
throws Throwable {
System.out.println("前置通知被执行");
}
}15.在src/main/java下创建后置通知实现类MethodAfter,包名(com.mycompany.shequ.service.impl)如图所示
16.后置通知实现类MethodAfter的内容如下
package com.mycompany.shequ.service.impl;
import java.lang.reflect.Method;
import org.springframework.aop.AfterReturningAdvice;
/**
* 方法执行完成后通知
* @author Administrator
*
*/
public class MethodAfter implements AfterReturningAdvice {
public void afterReturning(Object arg0, Method arg1, Object[] arg2,
Object arg3) throws Throwable {
System.out.println("后置通知被执行");
}
}17.在src/main/java下创建异常通知实现类ThrowException,包名(com.mycompany.shequ.service.impl)如图所示
18.异常通知实现类ThrowException的内容如下
package com.mycompany.shequ.service.impl;
import org.springframework.aop.ThrowsAdvice;
/**
* 抛出异常后通知
* @author Administrator
*
*/
public class ThrowException implements ThrowsAdvice {
public void afterThrowing(IllegalArgumentException e) throws Throwable{
System.out.println("异常通知被执行");
}
}19.在src/main/java下创建环绕通知实现类AroundMethod,包名(com.mycompany.shequ.service.impl)如图所示
20.环绕通知实现类AroundMethod的内容如下
package com.mycompany.shequ.service.impl;
import java.util.Arrays;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
/**
* 环绕通知
* @author Administrator
*
*/
public class AroundMethod implements MethodInterceptor {
public Object invoke(MethodInvocation method) throws Throwable {
System.out.println("环绕通知被执行");
System.out.println("方法名称:"+method.getMethod().getName());
System.out.println("方法参数:"+Arrays.toString(method.getArguments()));
Object result = method.proceed();
return result;
}
}21.在src/main/resource下创建核心的配置文件applicationContext.xml,如图所示
22.配置文件applicationContext.xml,如图所示
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd"> <!-- customer dao Bean --> <bean id="customerDao" class="com.mycompany.shequ.dao.impl.CustomerDaoImpl"></bean> <!-- customer 业务层 Bean --> <bean id="customerService" class="com.mycompany.shequ.service.impl.CustomerServiceImpl"> <property name="customerDao" ref="customerDao"></property> </bean> <!-- 方法执行前通知 --> <bean id="methodBeforeBean" class="com.mycompany.shequ.service.impl.MethodBefore"></bean> <!-- 方法执行完成后通知 --> <bean id="methodAfterBean" class="com.mycompany.shequ.service.impl.MethodAfter"></bean> <!-- 抛出异常后通知 --> <bean id="throwExceptionBean" class="com.mycompany.shequ.service.impl.ThrowException"></bean> <!-- 环绕通知 --> <bean id="aroundMethodBean" class="com.mycompany.shequ.service.impl.AroundMethod"></bean> <bean id="customerServiceProxy" class="org.springframework.aop.framework.ProxyFactoryBean"> <property name="target" ref="customerService"></property> <property name="interceptorNames"> <list> <!-- methodBeforeBean是前置通知Bean的名称 --> <value>methodBeforeBean</value> <!-- methodAfterBean是后置通知Bean的名称 --> <value>methodAfterBean</value> <!-- throwExceptionBean是异常通知Bean的名称 --> <value>throwExceptionBean</value> <!-- aroundMethodBean是环绕通知Bean的名称 --> <value>aroundMethodBean</value> </list> </property> </bean> </beans>
23.在src/test/java下创建测试文件AppTest,包名(com.mycompany.shequ.test)如图所示
24.测试文件AppTest的内容如下
package com.mycompany.shequ.test;
import org.junit.Test;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.mycompany.shequ.service.ICustomerService;
public class AppTest {
@Test
public void beanTest(){
ConfigurableApplicationContext context = new
ClassPathXmlApplicationContext("applicationContext.xml");
ICustomerService customerService = (ICustomerService)
context.getBean("customerServiceProxy");
customerService.showMe();
}
}25.在测试类AppTest的beanTest方法上右键运行,输出结果如图所示
本文出自 “素颜” 博客，谢绝转载！
Spring4-AOP通知
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