Spring factory-method

public class ClientService {
  private static ClientService clientService = new ClientService();
  private ClientService() {}

  public static ClientService createInstance() {
    return clientService;
  }
}

<bean id="clientService"
      class="examples.ClientService"
      factory-method="createInstance"/>

public class DefaultServiceLocator {
  private static ClientService clientService = new ClientServiceImpl();
  private DefaultServiceLocator() {}

  public ClientService createClientServiceInstance() {
    return clientService;
  }
}

<!-- the factory bean, which contains a method called createInstance() -->
<bean id="serviceLocator" class="examples.DefaultServiceLocator">
  <!-- inject any dependencies required by this locator bean -->
</bean>

<!-- the bean to be created via the factory bean -->
<bean id="clientService"
      factory-bean="serviceLocator"
      factory-method="createClientServiceInstance"/>

public class DefaultServiceLocator {
  private static ClientService clientService = new ClientServiceImpl();
  private static AccountService accountService = new AccountServiceImpl();

  private DefaultServiceLocator() {}

  public ClientService createClientServiceInstance() {
    return clientService;
  }

  public AccountService createAccountServiceInstance() {
    return accountService;
  }
}

<bean id="serviceLocator" class="examples.DefaultServiceLocator">
  <!-- inject any dependencies required by this locator bean -->
</bean>
<bean id="clientService"
      factory-bean="serviceLocator"
      factory-method="createClientServiceInstance"/>

<bean id="accountService"
      factory-bean="serviceLocator"
      factory-method="createAccountServiceInstance"/>

package org.hzy.entity;

public class DefaultServiceLocator {
	private static CreateBean cre=new CreateBean();
	private static HelloSpring hs=new HelloSpring();
	private DefaultServiceLocator() {}
	 public CreateBean createClientServiceInstance() {
		    return cre;
	 }
	  public HelloSpring createHello(String a,Integer b) {
		    return new HelloSpring(a,b);
	}
}

<?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:tx="http://www.springframework.org/schema/tx"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"
	default-lazy-init="false">

	<!--<bean id="basehello" class="org.hzy.entity.BaseHello">
		<property name="xx">
			<value>sdfd</value>
		</property>
	</bean>
	<bean id="hello1" class="org.hzy.entity.HelloSpring" parent="basehello">
		<property name="uage">
			<value>50</value>
		</property>
	</bean>-->
	<!--<bean id="hello2" class="org.hzy.entity.HelloSpring">
		<constructor-arg index="0" type="java.lang.String" value="aa"/>
		<constructor-arg index="1" type="java.lang.Integer" value="22"/>
	</bean>-->
	
	<!--<bean id="ch1" class="org.hzy.entity.Chinese">
		<property name="axe">
			<ref local="SteelAxe"/>
		</property>
	</bean>-->
	<!--<bean id="ch2" class="org.hzy.entity.Chinese">
		<constructor-arg index="0" type="org.hzy.entity.Axe" ref="SteelAxe"></constructor-arg>
	</bean>
	<bean id="SteelAxe" class="org.hzy.entity.SteelAxe"></bean>
	<bean id="StoneAxe" class="org.hzy.entity.StoneAxe"></bean>-->
	<bean id="create" class="org.hzy.entity.CreateBean" factory-method="createInstance"></bean>
	
	<bean id="serviceLocator" class="org.hzy.entity.DefaultServiceLocator"></bean>
	<bean id="def" factory-bean="serviceLocator" factory-method="createClientServiceInstance"></bean>
	<bean id="hs" factory-bean="serviceLocator" factory-method="createHello">
		<!--<property name="uname">
			<value>132</value>
		</property>
		<property name="uage">
			<value>132</value>
		</property>-->
		<constructor-arg><value>a.b.c.User</value></constructor-arg>
		<constructor-arg><value>26</value></constructor-arg>
	</bean>
</beans>

	public static void main(String[] args) {
		ApplicationContext context=new ClassPathXmlApplicationContext("beans.xml");
//		CreateBean df=context.getBean("def",CreateBean.class);
//		System.out.println(df);
		HelloSpring hs=(HelloSpring) context.getBean("hs");
		hs.print1();
	}