spring高级功能 - JAVA - 编程开发网

return id; } // 实现构造函数 public Talk() { System.out.println("talk被创建"); } public void setId(String id) { this.id = id; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public String getContent() { return Content; } public void setContent(String content) { Content = content; } public List getNames() { return names; } public void setNames(List names) { this.names = names; } }
在XML文件中配置

测试代码

	/**
		 * 不同类型的继承
		 */		
		 ApplicationContext context=new
		 ClassPathXmlApplicationContext("applicationContext.xml"); Talk
		 topic=context.getBean("talk",Talk.class);
		 
		 System.out.println(topic.getNames());
		 System.out.println(topic.getTitle());

运行结果：

talk被创建
reply被创建
[123, 245]
xxxx

工厂TopicFactory.java

package factory;

import org.springframework.beans.factory.FactoryBean;

import auto.Topic;

public class TopicFactory  implements  FactoryBean
  
   {
	
	 private Topic topic;
	//返回对象
	@Override
	public Topic getObject() throws Exception {
		//单例模式
		if(topic==null){
			topic=new Topic();
		}
			return topic;
		
	}
    //返回对象类型
	@Override
	public Class
    getObjectType() {
		
		return Topic.class;
	}

	//判断对象是否是单例
	@Override
	public boolean isSingleton() {
		
		return true;
	}

}

bean.xml

测试代码：

// 工厂		
		  ApplicationContext context = new ClassPathXmlApplicationContext(
		  "bean.xml"); Topic topic = context.getBean("topic", Topic.class);
		  topic.setId("110"); System.out.println(topic.getId()); Topic topic1 =
		  context.getBean("topic", Topic.class);
		  System.out.println(topic1.getId());

运行结果：

110
110

spring高级功能(二)