通过Spring注入，获取Service对象实例

工具类：

package com.lkg.transos.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Service;

@Service
public class SpringContextUtil implements ApplicationContextAware{
	
	private static ApplicationContext applicationContext;

	@Override
	public void setApplicationContext(ApplicationContext applicationContext)
			throws BeansException {
		// TODO Auto-generated method stub
		SpringContextUtil.applicationContext = applicationContext;
	}
	
	public static ApplicationContext getApplicationContext() {
		return applicationContext;
	}

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

在Spring配置文件（ApplictionContext.xml）中加注入SpringContextUtil对象：

<bean id="SpringContextUtil" class="com.lkg.transos.util.SpringContextUtil"></bean>

获取Service对象实例：

OsAgentExtService osAgentExtService =  (OsAgentExtService) SpringContextUtil.getBean("osAgentExtService");