spring 用JavaBean 配置List、Map、Set等java容器

用数值配置spring装配的JavaBean内部的List类型很容易，下面介绍如何用javabean装配JavaBean中的List

 

public class Element implements Serializable{
	/**
	 *
	 */
	private static final long serialVersionUID = -6956332143541075576L;
	private Integer id;
	private String name;
	private String url;
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getUrl() {
		return url;
	}
	public void setUrl(String url) {
		this.url = url;
	}
	
}

 public class Test {

	private List<Element> elementList;
	
	
	public List<Element> getElementList() {
		return elementList;
	}


	public void setElementList(List<Element> elementList) {
		this.elementList = elementList;
	}


	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String[] configLocations = {"E:\\test.xml"};
		ApplicationContext applicationContext = new FileSystemXmlApplicationContext(configLocations);
		Test test = (Test)applicationContext.getBean("test");
		List<Element> elList = test.getElementList();
		for(Element el : elList){
			System.out.println(el.getId() + " , " + el.getName() + " , " + el.getUrl());
		}
	}

}

 <?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:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
                      http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
                      http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

	<bean id="element0" class="com.beantest.Element">
		<property name="id" value="1001"/>
		<property name="name" value="hello"/>
		<property name="url" value="http://www.baidu.com/"/>
	</bean>
	<bean id="element1" class="com.beantest.Element">
		<property name="id" value="1002"/>
		<property name="name" value="world"/>
		<property name="url" value="http://www.google.com/"/>
	</bean>
	<bean id="test" class="com.beantest.Test">
		<property name="elementList">
			<list>
				<ref bean="element0" />
				<ref bean="element1" />
			</list>
		</property>
	</bean>
</beans>

 这样，两个bean element0和element1就被装配到了bean test里面。

<bean id="moreComplexObject" class="example.ComplexObject">
    <!-- results in a setAdminEmails(java.util.Properties) call -->
    <property name="adminEmails">
        <props>
            <prop key="administrator">[email protected]</prop>
            <prop key="support">[email protected]</prop>
            <prop key="development">[email protected]</prop>
        </props>
    </property>
    <!-- results in a setSomeList(java.util.List) call -->
    <property name="someList">
        <list>
            <value>a list element followed by a reference</value>
            <ref bean="myDataSource" />
        </list>
    </property>
    <!-- results in a setSomeMap(java.util.Map) call -->
    <property name="someMap">
        <map>
            <entry key="an entry" value="just some string"/>
            <entry key ="a ref" value-ref="myDataSource"/>
        </map>
    </property>
    <!-- results in a setSomeSet(java.util.Set) call -->
    <property name="someSet">
        <set>
            <value>just some string</value>
            <ref bean="myDataSource" />
        </set>
    </property>
</bean>

 

spring直接在xml里面声明List，如下：

	<bean id="dmapScheduleframeworkCallbackUrls" class="java.util.ArrayList">
		<constructor-arg index="1">
			<list>
				<value>localhost:8080</value>
				<value>localhost:8081</value>
				<value>localhost:8082</value>
			</list>
		</constructor-arg>
	</bean>