Spring MapFactoryBean例子

package com.tw511.common;

import java.util.Map;

public class Customer 
{
	private Map maps;
	//...
}

<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 id="CustomerBean" class="com.tw511.common.Customer">
		<property name="maps">
			<bean class="org.springframework.beans.factory.config.MapFactoryBean">
				<property name="targetMapClass">
					<value>java.util.HashMap</value>
				</property>
				<property name="sourceMap">
					<map>
						<entry key="Key1" value="one" />
						<entry key="Key2" value="two" />
						<entry key="Key3" value="three" />
					</map>
				</property>
			</bean>
		</property>
	</bean>

</beans>

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xmlns:util="http://www.springframework.org/schema/util"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
	http://www.springframework.org/schema/util
	http://www.springframework.org/schema/util/spring-util-2.5.xsd">

	<bean id="CustomerBean" class="com.tw511.common.Customer">
		<property name="maps">
			<util:map map-class="java.util.HashMap">
				<entry key="Key1" value="1" />
				<entry key="Key2" value="2" />
				<entry key="Key3" value="3" />
			</util:map>
		</property>
	</bean>

</beans>

Caused by: org.xml.sax.SAXParseException: 
	The prefix "util" for element "util:map" is not bound.

執行結果...

package com.tw511.common;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App 
{
    public static void main( String[] args )
    {
    	ApplicationContext context = new ClassPathXmlApplicationContext("SpringBeans.xml");

    	Customer cust = (Customer)context.getBean("CustomerBean");
    	System.out.println(cust);
    	
    }
}

輸出結果：

	
	
	
	

		Customer [maps={Key2=two, Key1=one, Key3=three}]