Bean的属性注入

集合实体类

public class CollectionDemo {
	private List list;
	private Set set;
	private Map map;
	private Properties prop;

Car实体类

public class Car {
	private String name;
	private double price;

Person实体类

public class Person {
	private String name;
	private Car car;

applicationContext.xml

	<bean name="car" class="di.Car">
		<constructor-arg index="0" type="java.lang.String" value="奥迪" >constructor-arg>
		<constructor-arg index="1" type="double" value="400000">constructor-arg>
	bean>
	
	
	<bean name="car1" class="di.Car">
		<property name="name" value="宝马">property>
		<property name="price" value="500000">property>
	bean>
	
	<bean name="person" class="di.Person">
		<property name="name" value="张三">property>
		
		<property name="car" ref="car1">property>
	bean>
	
	
	<bean id="collectionDemo" class="di.CollectionDemo">
		<property name="list">
			<list>
				<value>张三value>
				<value>10value>
				<ref bean="car"/>
			list>
		property>
		
		<property name="set">
			<set>
				<value>李四value>
				<value>20value>
				<ref bean="person"/>
			set>
		property>
		
		<property name="map">
			<map>
				<entry key="username" value="李四">entry>
				<entry key-ref="person" value-ref="car">entry>
			map>
		property>
		
		<property name="prop">
			<props>
				<prop key="company">ylprop>
				<prop key="price">10000000prop>
			props>
		property>
		
	bean>

DiTest

	//构造方法注入
	@Test
	public void test1() {
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
		Car car = (Car) applicationContext.getBean("car");
		System.out.println(car.getName()+" "+car.getPrice());
	}
	//set方法注入
	@Test
	public void test2() {
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
		Car car = (Car) applicationContext.getBean("car1");
		System.out.println(car.getName()+" "+car.getPrice());
	}
	
	//set方法注入
	@Test
	public void test3() {
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
		Person person = (Person) applicationContext.getBean("person");
		System.out.println(person.getName()+" "+person.getCar().getName());
	}

	//测试集合属性注入---list
	@Test
	public void test4() {
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
		CollectionDemo cd = (CollectionDemo) applicationContext.getBean("collectionDemo");
		System.out.println(cd.getList());
	}
	
	//测试集合属性注入---set
	@Test
	public void test5() {
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
		CollectionDemo cd = (CollectionDemo) applicationContext.getBean("collectionDemo");
		System.out.println(cd.getSet());
	}
	
	//测试集合属性注入---map
	@Test
	public void test6() {
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
		CollectionDemo cd = (CollectionDemo) applicationContext.getBean("collectionDemo");
		System.out.println(cd.getMap());
	}
	
	// 测试集合属性注入---Properties
	@Test
	public void test7() {
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
		CollectionDemo cd = (CollectionDemo) applicationContext.getBean("collectionDemo");
		System.out.println(cd.getProp());
	}

p/c命名空间

    <bean id="dog" class="pc.Dog" p:name="小白" p:color="白色">bean>
    
    <bean id="dog1" class="pc.Dog" c:name="小黑" c:color="黑色">bean>
    
    <bean id="person" class="pc.Person" p:name="小王" p:dog-ref="dog1" p:age="20">bean>
    
    
    <bean id="person1" class="pc.Person">
    	<property name="name" value="#{person.name}">property>
    	<property name="dog" value="#{dog1}">property>
    	<property name="age" value="#{person.age+10}">property>
    	
    bean>