分享springside3 中的SpringContextUtils

web项目（ spring ）启动后，SpringContextUtils的applicationContext属性会自动初始化（不必 new ClassPathXmlApplicationContext("applicationContext.xml")），于是可以自行编写一些静态方法从 applicationContext 中获取bean了。

 package org.springside.modules.utils;
 
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
 
 public class SpringContextUtils
   implements ApplicationContextAware
 {
   private static ApplicationContext applicationContext;
 
   public void setApplicationContext(ApplicationContext context)
   {
     applicationContext = context;
   }
 
   public static ApplicationContext getApplicationContext()
   {
     if (applicationContext == null)
       throw new IllegalStateException("applicaitonContext未注入,请在applicationContext.xml中定义SpringContextUtil");
     return applicationContext;
   }
 
   public static <T> T getBean(String name)
   {
     return applicationContext.getBean(name);
   }
 }

<bean id="springContextUtils" class="org.springside.modules.utils.SpringContextUtils" />