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| 28. 6. 5. BeanFactory实例 |
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File: context.xml |
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<?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.xsd">
<bean id="logging" class="LoggingBean"/>
<bean class="ShutdownHookBean"/>
</beans>
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File: Main.java |
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import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;
public class Main {
public static void main(String[] args) throws Exception {
XmlBeanFactory factory = new XmlBeanFactory(new ClassPathResource(
"context.xml"));
factory.preInstantiateSingletons();
LoggingBean lb = (LoggingBean) factory.getBean("logging");
lb.run();
}
}
class LoggingBean implements BeanNameAware {
private String name;
public void setBeanName(String name) {
this.name = name;
}
public void run() {
System.out.println("Bean name is'" + this.name + "'.");
}
}
class ShutdownHookBean implements BeanFactoryAware, Runnable {
private ConfigurableListableBeanFactory beanFactory;
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
if (beanFactory instanceof DefaultListableBeanFactory) {
this.beanFactory = (ConfigurableListableBeanFactory)beanFactory;
Runtime.getRuntime().addShutdownHook(new Thread(this));
}
}
public void run() {
if (this.beanFactory != null) {
System.out.println("Destroying singletons.");
this.beanFactory.destroySingletons();
}
}
}
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 Download: Spring-BeanFactoryAware.zip( 2,599 k) |
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