package com.yiibai.common;import java.util.Set;public class Customer
{private Set sets;//...
}

<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-2.5.xsd"><bean id="CustomerBean" class="com.yiibai.common.Customer"><property name="sets"><bean class="org.springframework.beans.factory.config.SetFactoryBean"><property name="targetSetClass"><value>java.util.HashSet</value></property><property name="sourceSet"><list><value>one</value><value>2</value><value>three</value></list></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/beanshttp://www.springframework.org/schema/beans/spring-beans-2.5.xsdhttp://www.springframework.org/schema/utilhttp://www.springframework.org/schema/util/spring-util-2.5.xsd"><bean id="CustomerBean" class="com.yiibai.common.Customer"><property name="sets"><util:set set-class="java.util.HashSet"><value>one</value><value>2</value><value>three</value></util:set></property></bean></beans>

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

执行结果

package com.yiibai.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("applicationContext.xml");Customer cust = (Customer)context.getBean("CustomerBean");System.out.println(cust);}
}

输出结果：

Customer [sets=[2, one, three]] Type=[class java.util.HashSet]