spring2.5学习笔记（三）：属性赋值

beans.xml

<?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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           ">
		<!-- IOC控制反转的原理演示 -->
		<bean id="persondao" class="cn.itcast.dao.impl.PersonDaoBean">
		</bean>
		<bean id="personservice5" class="cn.itcast.service.impl.PersonServiceBean" >
			<!-- 这里运用java的反射机制，将生成的bean组件（persondao）中的方法，映射给ipersondao，
				也就是 在PersonServiceBean中只要建一个persondao相关接口的引用就能调用到实现了这个接口的类中的方法-->
			<!-- 依赖属性值的注入 -->
			<property name="ipersondao" ref="persondao"></property>
			<!-- 普通类型值的注入 -->
			<property name="name" value="hhp"></property>
			<property name="id" value="88"></property>
	
			<!-- 四种集合类型变量属性值的注入 -->
			<property name="sets">
				<set>
					<value>第一个set值</value>
					<value>第二个set值</value>
					<value>第三个set值</value>
				</set>
			</property>
			<property name="lists">
				<list>
					<value>第一个list值</value>
					<value>第二个list值</value>
					<value>第三个list值</value>
				</list>
			</property>
			
			<property name="properties">
				<props>
					<prop key="key1">第一个properties的值</prop>
					<prop key="key2">第二个properties的值</prop>
					<prop key="key3">第三个properties的值</prop>
				</props>
			</property>
			<property name="maps">
				<map>
					<entry key="key-1" value="第一个map值"></entry>
					<entry key="key-2" value="第二个map值"></entry>
					<entry key="key-3" value="第三个map值"></entry>
				</map>
			</property>
	                
                         <!-- 以下是通过构造器给属性赋值 -->
			<constructor-arg index="0" type="cn.itcast.dao.impl.IPersonDao" ref="persondao"></constructor-arg>
			<constructor-arg index="1" value="这是通过构造器注入的形式，为属性赋值"></constructor-arg>
		</bean>
		
		<!-- 以下使用java的@Resource注解注入的形式给 属性赋值 -->
		<context:annotation-config></context:annotation-config>
		<bean id="iPersonDao" class="cn.itcast.dao.impl.PersonDaoBean">
		</bean>
		<bean id="personservice6" class="cn.itcast.service.impl.PersonServiceBean2" >
		</bean>
</beans>

cn.itcast.dao.impl包下的java文件

package cn.itcast.dao.impl;
public interface IPersonDao {
	public abstract void add();
}

package cn.itcast.dao.impl;
public class PersonDaoBean implements IPersonDao {
	public void add(){
		System.out.println("执行PersonDaoBean类中的add方法");
	}
}

cn.itcast.service包下的java文件

package cn.itcast.service;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
public interface IPersonService {
	public Set<String> getSets();
	public List<String> getLists();
	public Properties getProperties();
	public Map getMaps();
	public abstract void save();
}

cn.itcast.service.impl包下的java文件

package cn.itcast.service.impl;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

import cn.itcast.dao.impl.IPersonDao;
import cn.itcast.dao.impl.PersonDaoBean;
import cn.itcast.service.IPersonService;
public class PersonServiceBean implements IPersonService {

	/* (non-Javadoc)
	 * @see cn.itcast.service.impl.IPersonService#save()
	 */
	//此方法在配置文件bean标签中用init-method属性调用
	private IPersonDao ipersondao ;
	private String name;
	private Integer id;
	private Set<String> sets = new HashSet<String>();
	private List<String> lists = new ArrayList<String>();
	private Properties properties = new Properties();
	private Map maps = new HashMap();
	
	private IPersonDao personDao;
	private String str;
	
	public PersonServiceBean(IPersonDao personDao, String str) {
		super();
		this.personDao = personDao;
		this.str = str;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	
	public Set<String> getSets() {
		return sets;
	}
	public void setSets(Set<String> sets) {
		this.sets = sets;
	}
	
	public List<String> getLists() {
		return lists;
	}
	public void setLists(List<String> lists) {
		this.lists = lists;
	}
	
	public Properties getProperties() {
		return properties;
	}
	public void setProperties(Properties properties) {
		this.properties = properties;
	}
	
	public Map getMaps() {
		return maps;
	}
	public void setMaps(Map maps) {
		this.maps = maps;
	}
	public IPersonDao getIpersondao() {
		return ipersondao;
	}
	public void setIpersondao(IPersonDao ipersondao) {
		this.ipersondao = ipersondao;
	}
	
	public void init(){
		System.out.println("初始化");
	}
	public PersonServiceBean(){
		System.out.println("我被实例化了");
	}
	
	public void save(){
		System.out.println("这是PersonServiceBean类中的save方法");
		System.out.println("id="+id+"    name="+name);
		System.out.println("=========以下是通过构造器注入的方式向属性赋值");
		personDao.add();
		System.out.println("这是通过构造器注入的属性值"+str);
		System.out.println("=========以上是通过构造器注入的方式向属性赋值");
//		ipersondao.add();
	}
	
	public void destroy(){
		System.out.println("关闭打开的资源");
	}
}

package cn.itcast.service.impl;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import org.springframework.beans.factory.annotation.Autowired;
import cn.itcast.dao.impl.IPersonDao;
import cn.itcast.service.IPersonService;
public class PersonServiceBean2 implements IPersonService {
//	@ItcastResource 
//	@Resource 
	@Autowired private IPersonDao iPersonDao;
	public List<String> getLists() {
		// TODO Auto-generated method stub
		return null;
	}

	public Map getMaps() {
		// TODO Auto-generated method stub
		return null;
	}

	public Properties getProperties() {
		// TODO Auto-generated method stub
		return null;
	}

	public Set<String> getSets() {
		// TODO Auto-generated method stub
		return null;
	}

	
	
	public IPersonDao getIPersonDao() {
		return iPersonDao;
	}

	
	 public void setIPersonDao(IPersonDao personDao) {
		iPersonDao = personDao;
	}

	public void save() {
		iPersonDao.add();
	}
}

测试文件

package junit.test;


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

import cn.itcast.service.IPersonService;

public class SpringTest {

	@BeforeClass
	public static void setUpBeforeClass() throws Exception {
	}
	
	@Test public void instanceSpring(){	
		ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");
		IPersonService personservice5 = (IPersonService)ctx.getBean("personservice5");
		System.out.println("============set==============");
		for(String value : personservice5.getSets()){
			System.out.println("注入的set值：   "+value);
		}
		System.out.println("============list==============");
		for(String value : personservice5.getLists()){
			System.out.println("注入的list值：   "+value);
		}
		System.out.println("============properties==============");
		for(Object key : personservice5.getProperties().keySet()){
			System.out.println("key：   "+personservice5.getProperties().getProperty((String)key));
		}
		System.out.println("============map==============");
		for(Object key : personservice5.getMaps().keySet()){
			System.out.println("map：   "+personservice5.getMaps().get(key));
		}
		personservice5.save();
		
	}

}