Spring xml 方式配制的小demo

1、新建一个Web程序
   在程序中引入Spring所需要的jar包，我以前有弄好的包，包含了以下几个jar包

2、在src下新建Person.java的实例bean.

package cn.ehoo.bean;
/**
 *@author whp
 *@Email [e-mail]
 *@Dec 30, 2010
 *
 */
public class Person {
	private Long id;
	private String userName;
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}
}

3、再建立数据层的PersonDao接口与PersonDaoBean的实现bean

PersonDao.java

package cn.ehoo.dao;

import cn.ehoo.bean.Person;

/**
 *@author whp
 *@Email [e-mail]
 *@Dec 30, 2010
 *
 */
public interface PersonDao {

	public void save(Person person);

}

PersonDaoBean.java

package cn.ehoo.dao.impl;

import org.springframework.stereotype.Repository;

import cn.ehoo.bean.Person;
import cn.ehoo.dao.PersonDao;

/**
 *@author whp
 *@Email [e-mail]
 *@Dec 30, 2010
 *
 */
public class PersonDaoBean implements PersonDao {
	public void save(Person person){
		System.out.println("执行 PersonDaoBean 里的save方法");
	}
}

4 建立服务层的PersonService.java与实现类PersonServiceBean.java

PersonService.java

package cn.ehoo.service;

import cn.ehoo.bean.Person;

/**
 *@author whp
 *@Email [e-mail]
 *@Dec 30, 2010
 *
 */

public interface PersonService {

	public void save(Person person);

}

实现类PersonServiceBean.java

package cn.ehoo.service.impl;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.annotation.Resource;

import org.springframework.stereotype.Service;

import cn.ehoo.bean.Person;
import cn.ehoo.dao.PersonDao;
import cn.ehoo.service.PersonService;

/**
 *@author whp
 *@Email [e-mail]
 *@Dec 30, 2010
 *
 */
public class PersonServiceBean implements PersonService {
	 private PersonDao personDao;
	public void save(Person person){
		System.out.println("执行 PersonServiceBean 里的save方法"); 
		personDao.save(person);
	}
	
	public void init(){
		System.out.println("初始化资源文件");
	}
	
	public void destroy(){
		System.out.println("关闭资源性文件");
	}
}

5 在程序的classpath路径下面(也就是src的根目录下)建立beans.xml文件

  <?xml version="1.0" encoding="UTF-8" ?> 
- <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
  <bean name="personDao" class="cn.ehoo.dao.impl.PersonDaoBean" /> 
- <bean name="personService" class="cn.ehoo.service.impl.PersonServiceBean">
  <property name="personDao" ref="personDao" /> 
  </bean>
  </beans>

6 junit进行测试

package junit.test;

import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import cn.ehoo.bean.Person;
import cn.ehoo.service.PersonService;

/**
 *@author whp
 *@Email [e-mail]
 *@Dec 30, 2010
 *
 */
public class SpringTest {
	public static PersonService personService;
	@BeforeClass
	public static void setUpBeforeClass() throws Exception {
		AbstractApplicationContext cxt = new ClassPathXmlApplicationContext("beans.xml");
		personService =(PersonService)cxt.getBean("personServiceBean");
	}
	@Test
	public void save(){
		Person person = new Person();
		personService.save(person);
	}
	public static void main(String[] args) {
		try {
			setUpBeforeClass();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	/**
	 *@author whp
	 *@Email [e-mail]
	 *@Dec 30, 2010
	 *
	 */

	@AfterClass
	public static void tearDownAfterClass() throws Exception {
	}
}