spring 获取bean

从spring中取得已经初始化的bean

xml：
<bean id="springUtils" class="studio.crescent.common.SpringUtils" />

code：
package studio.crescent.common;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

/**
* <li>Title: SpringUtils.java</li>
* <li>Project: </li>
* <li>Package: </li>
* <li>Description: Spring通用类</li>
* <li>Copyright: Copyright (c) 2010</li>
* <li>Company: Crescent Studio</li>
* <li>Created on 2010-6-30 下午08:30:34</li>
*
* @author chun_chang
* @version 1.0
*
*/
public class SpringUtils implements ApplicationContextAware {

private static ApplicationContext applicationContext = null;

public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
SpringUtils.applicationContext = applicationContext;
}

public static ApplicationContext getApplicationContext() {
return applicationContext;
}

/**
* 描述：getBean 获取bean
* @param beanName
* @return
* @CreateOn 2010-7-1  上午11:05:53
* @author chun_chang
*/
public static Object getBean(String beanName){
if(null == applicationContext){
return null;
}else{
return applicationContext.getBean(beanName);
}
}
}