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");