SpringUtil

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;


/**
ApplicationContextAware初始化


通過它Spring容器會自動通過調用ApplicationContextAware接口中的setApplicationContext方法把上下文環境對象注入具體實現類中。


我們在ApplicationContextAware的實現類中，就可以通過這個上下文環境對象得到Spring容器中的Bean。
**/
public class SpringUtil implements ApplicationContextAware, DisposableBean
{
	
	public SpringUtil(){}


	/** 屬性注入: Spring框架應用上下文對象 */ 
	private static ApplicationContext applicationContext = null;
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException
	{
		applicationContext = applicationContext;
	}


	public void destroy()
		throws Exception
	{
		applicationContext = null;
	}


	public static ApplicationContext getApplicationContext()
	{
		return applicationContext;
	}


	public static Object getBean(String name)
		throws BeansException
	{
		return applicationContext.getBean(name);
	}


}


/**
applicationContext.xml中配置:
	<bean id="springUtil" class="net.eleshop.util.SpringUtil" lazy-init="false" />


web.xml中配置:
	<!-- 初始化Spring容器時加載的核心配置文件-->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath*:/applicationContext*.xml</param-value>
	</context-param>
	<!-- 配置Spring的核心監聽器: ContextLoaderListener 初始化Spring容器-->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
**/