spring IoC編程執行個體

設定檔

/SpringHelloWorld/src/applicationContext.xml

代碼

<?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-2.0.xsd">

<bean id="greetingService" class="com.qdu.sun.spring.HelloWorld">
<constructor-arg>
<value type="java.lang.String">Welcome!</value>
</constructor-arg>
</bean></beans>

 

 

 

SpringTest.java

代碼

package com.qdu.sun.spring;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;

public class SpringTest {
public static void main( String[] args ){
            BeanFactory factory = new XmlBeanFactory( new ClassPathResource("applicationContext.xml") );
            HelloWorld gc = (HelloWorld)factory.getBean("greetingService");
            gc.sayGreeting();
        }
}

 

 

HelloWorld.java

代碼

package com.qdu.sun.spring;

public class HelloWorld {
private String greeting;

public HelloWorld(){

    }

public HelloWorld( String greeting ){
this.greeting = greeting;
    }

public void sayGreeting(){
        System.out.println( greeting );
    }

public void setGreeting( String greeting ){
this.greeting = greeting;
    }

}