1. Spring组成

 

• Inversion of Control (IoC)
• Aspect Oriented Programming (AOP)
• Abstract Service

2. Spring下载

3. Spring实例

EricTest.java

package erictest;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.FileSystemXmlApplicationContext;

public class EricTest {

    public static void main(String argv[]) {

        ApplicationContext ctx = new FileSystemXmlApplicationContext("src/ericspring.xml");

        ShowMessage sm = (ShowMessage)ctx.getBean("ericBean");

        sm.show();

    }

}

ShowMessage.java

package erictest;

public class ShowMessage {

    private String message;

    public void setMessage(String message){

           this.message = message;

    }

   

    public String getMessage(){

           return this.message;

    }

    public void show(){

           System.out.print("Spring Test Message: " + getMessage());

    }

}

 

ericspring.xml

package erictest;

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>

    <bean id = "ericBean" class="erictest.ShowMessage">

       <property name="message">

           <value>Says Hello Spring!</value>

       </property>

    </bean>

</beans>

运行即可显示结果

Spring Test Message: Says Hello Spring!