Spring Load Resource from file, classpath and URL

/*
Pro Spring
By Rob Harrop
Jan Machacek
ISBN: 1-59059-461-4
Publisher: Apress
*/



///////////////////////////////////////////////////////////////////////////////////////

//File: events.xml
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
    <bean id="publisher" class="Publisher"/>
        <bean id="messageEventListener" class="MessageEventListener"/>
</beans>

///////////////////////////////////////////////////////////////////////////////////////
import org.springframework.context.ApplicationEvent;


public class MessageEvent extends ApplicationEvent {

    private String msg;
    public MessageEvent(Object source, String msg) {
        super(source);
        this.msg = msg;
    }
    
    public String getMessage() {
        return msg;
    }
    
}
///////////////////////////////////////////////////////////////////////////////////////
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;

public class MessageEventListener implements ApplicationListener {

   
    public void onApplicationEvent(ApplicationEvent event) {
       if(event instanceof MessageEvent) {
           MessageEvent msgEvt = (MessageEvent)event;
           System.out.println("Received: " + msgEvt.getMessage());
       }
    }

}

///////////////////////////////////////////////////////////////////////////////////////
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.support.FileSystemXmlApplicationContext;

public class Publisher implements ApplicationContextAware {

    private ApplicationContext ctx;

    public static void main(String[] args) {
        ApplicationContext ctx = new FileSystemXmlApplicationContext(
                "build/events.xml");

        Publisher pub = (Publisher) ctx.getBean("publisher");
        pub.publish("Hello World!");
        pub.publish("The quick brown fox jumped over the lazy dog");
    }

    public void setApplicationContext(ApplicationContext applicationContext)
            throws BeansException {
        this.ctx = applicationContext;

    }

    public void publish(String message) {
        ctx.publishEvent(new MessageEvent(this, message));
    }
}
///////////////////////////////////////////////////////////////////////////////////////

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
import org.springframework.core.io.Resource;

public class ResourceDemo {

    public static void main(String[] args) throws Exception{
        ApplicationContext ctx = new FileSystemXmlApplicationContext(
        "build/events.xml");
  
        Resource res1 = ctx.getResource("file:///c:/test.txt");
        displayInfo(res1);
        Resource res2 = ctx.getResource("classpath:lib/commons-logging.jar");
        displayInfo(res2);
        Resource res3 = ctx.getResource("http://www.google.co.uk");
        displayInfo(res3);
    }
    
    private static void displayInfo(Resource res) throws Exception{
        System.out.println(res.getClass());
        System.out.println(res.getURL().getContent());
        System.out.println("");
    }
}
SpringResource.zip( 1,199 k)
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1.	File System Resource Demo
2.	Message Source
Spring Load Resource from file, classpath and URL : IoC Resource « Spring « Java

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