Spring---静态与动态工厂之二——改善

短命女 2022-05-14 02:09 209阅读 0赞

applicationContext.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.xsd">
    
        
        
        <bean id="factory" class="com.myproject.ba3.ServiceFactory"/>
    
        
        <bean id="myService" factory-bean="factory" factory-method="getSomeService"/>
    </beans>

MyTest：

package com.myproject.ba3;
    /*在本程序中主要用于创建降低工厂与Test之间的耦合度 * **/
    
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    import com.myproject.ba.ISomeService;
    import com.myproject.ba2.ServiceFactory;
    
    public class MyTest { 
    
        @Test
        public void test01(){
            ISomeService service=new ServiceFactory().getSomeService();//动态的工厂-----设置成静态方法以后这样子做调用也可以
            service.doSome();
        }
    
    
        @Test
        public void test02() {
            String resource = "com/myproject/ba3/applicationContext.xml";
            ApplicationContext ac=new ClassPathXmlApplicationContext(resource);
            //获取工厂
            ISomeService service=(ISomeService) ac.getBean("myService");
            service.doSome();
        }//出错处：我在执行Mytest的时候，不显示“执行无参数构造器”
    
        /*在test02()中我的目的就是为了让工厂和和test的耦合度降低下来。----反而使复杂度增加了。-----因为没有使用动态工厂bean----在applicationContext.xml进行设置 * <bean id="myService" factory-bean="factory" factory-method="getSomeService"/> * (2)在Test里面进行设置： * 把ServiceFactory factory=(ServiceFactory) ac.getBean("factory"); ISomeService service=factory.getSomeService(); 改成：ISomeService service=(ISomeService) ac.getBean("myService"); */
    
    }