===============
PersonServiceBeanFactory.java
===============
package blog.service.impl;
public class PersonServiceBeanFactory {
public static PersonServiceBean createPersonServiceBean(){
return new PersonServiceBean();
}
public PersonServiceBean createPersonServiceBean2(){
return new PersonServiceBean();
}
}
==============
beans.xml
==============
<?xml version="1.0" encoding="UTF-8"?>
<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">
<!-- id属于xml所有的属性,是确定bean唯一的属性,不能包含特殊字符 建议第一个字母小写 -->
<!-- name属性可以包含特殊字符,当不包含特殊字符时应选用id来表示bean,id可以被xml解析 -->
<!-- 使用类构造器方法创建bean -->
<bean id="personService" class="blog.service.impl.PersonServiceBean" ></bean>
<!-- 使用静态工场方法创建bean -->
<bean id="personService2" class="blog.service.impl.PersonServiceBeanFactory"
factory-method="createPersonServiceBean"></bean>
<!-- 使用实例工场方法实例化 -->
<bean id="PersonServiceBeanFactory" class="blog.service.impl.PersonServiceBeanFactory"></bean>
<bean id="personService3" factory-bean="PersonServiceBeanFactory" factory-method="createPersonServiceBean2"></bean>
</beans>
=================
springtest.java
=================
package junit.test;
import org.junit.BeforeClass;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import blog.service.PersonService;
import blog.service.impl.PersonServiceBean;
public class springtest {
@BeforeClass
public static void setUpBeforeClass() throws Exception {
}
@Test
public void instanceSpring(){//实例化spring容器
//使用:在类路径寻找配置文件来实例化容器
ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");
PersonService personService = (PersonService)ctx.getBean("personService");
personService.save();
PersonService personService2 = (PersonService)ctx.getBean("personService2");
personService2.save();
PersonService personService3 = (PersonService)ctx.getBean("personService3");
personService3.save();
}
}