bean scope 테스트(singleton : default, prototype)

 

<?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-3.0.xsd">

 <bean id="testDTO" class="di.dto.TestDTO" />
 <bean id="testDTO2" class="di.dto.TestDTO"/>
</beans>

 

package di.dto;

public class TestDTO {
 
}

 

package di.main;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import di.dto.TestDTO;

public class TestScope {
 public static void main(String[] args) {
  ApplicationContext ctx = new ClassPathXmlApplicationContext("di/config/test.xml");
  TestDTO dto1 = (TestDTO) ctx.getBean("testDTO");
  TestDTO dto2 = (TestDTO) ctx.getBean("testDTO");
  TestDTO dto3 = (TestDTO) ctx.getBean("testDTO2");
  System.out.println("dto1 : "+dto1);
  System.out.println("dto2 : "+dto2);
  System.out.println("testDTO2 : "+dto3);
  System.out.println("dto1==dto2 : "+(dto1==dto2));
  System.out.println("dto1==dto3 : "+(dto1==dto3));
 }

}

 

* 결과

 

 

<?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-3.0.xsd">

 <bean id="testDTO" class="di.dto.TestDTO" scope="prototype"/>
 <bean id="testDTO2" class="di.dto.TestDTO"/>
</beans>

 

 

package di.dto;

public class TestDTO {
 
}

 

package di.main;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import di.dto.TestDTO;

public class TestScope {
 public static void main(String[] args) {
  ApplicationContext ctx = new ClassPathXmlApplicationContext("di/config/test.xml");
  TestDTO dto1 = (TestDTO) ctx.getBean("testDTO");
  TestDTO dto2 = (TestDTO) ctx.getBean("testDTO");
  TestDTO dto3 = (TestDTO) ctx.getBean("testDTO2");
  System.out.println("dto1 : "+dto1);
  System.out.println("dto2 : "+dto2);
  System.out.println("testDTO2 : "+dto3);
  System.out.println("dto1==dto2 : "+(dto1==dto2));
  System.out.println("dto1==dto3 : "+(dto1==dto3));
 }

}

 

* 결과