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

  1.0.0
  shequ
  springdemo13
  0.0.1-SNAPSHOT
  
  
  	1.7
  	UTF-8
  	UTF-8
  
  
  
  	
  		codelds
  		https://code.lds.org/nexus/content/groups/main-repo
  	
  
  
  
  	
  		javax.annotation
  		jsr250-api
  		1.0
  	
  	
  	
  		org.springframework
  		spring-test
  		4.1.4.RELEASE
  	
  	
  	
  		junit
  		junit
  		4.10
  	
  	
  	
  		org.springframework
  		spring-core
  		4.1.4.RELEASE
  	
  	
  	
        org.springframework
        spring-context
        4.1.4.RELEASE
    
    
    
        org.springframework
        spring-jdbc
        4.1.4.RELEASE
    
    
    
        mysql
        mysql-connector-java
        5.1.34
    
       
  
  

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("#{('[email protected]' matches '^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)" +
	"*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$') ? '[email protected]':'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

	
	
	
	
	
	
		
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
		
			
				
				methodBeforeBean
				
				
				methodAfterBean
				
				
				throwExceptionBean
				
				
				aroundMethodBean
			
		
	

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