Admin: 1 версия

2010-06-01T06:15:58Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:44Z

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== Context Aware Demo ==



<source lang="java">
/*
Pro Spring
By Rob Harrop
Jan Machacek
ISBN: 1-59059-461-4
Publisher: Apress
*/
///////////////////////////////////////////////////////////////////////////////
//File: aware.xml
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="contextAware" class="ContextAwareDemo"/>
</beans>
///////////////////////////////////////////////////////////////////////////////
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.support.FileSystemXmlApplicationContext;
public class ContextAwareDemo implements ApplicationContextAware {
private ApplicationContext ctx;
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
ctx = applicationContext;
}
public static void main(String[] args) {
ApplicationContext ctx = new FileSystemXmlApplicationContext(
"build/aware.xml");

ContextAwareDemo demo = (ContextAwareDemo) ctx.getBean("contextAware");
demo.displayAppContext();
}
public void displayAppContext() {
System.out.println(ctx);
}
}

</source>



== Message Event ==



<source lang="java">
/*
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));
}
}

</source>

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Java/Spring/IoC Context - История изменений

Admin: 1 версия

в 18:01, 31 мая 2010