public static boolean checkSemiAuto(String jobId, String workId) {
		String createType;
		EomAlarmWorkMapper   alarmMapper = ContextUtils.getBean("eomAlarmWorkMapper");
		EomAlarmWork alarmWork = alarmMapper.selectByPrimaryKey(workId);
		   if(alarmWork != null && !alarmWork.equals("")){
			   createType = alarmWork.getCreateType(); 
		   }else{
			   createType = Constants.ALARM_WORK_WEIHU;
		   }
		   if(createType.equals(Constants.ALARM_WORK_DEFAULT) && jobId.equals(Constants.JOB_ALARM_HANDLE)){
			   return true;
		   }
		   else{
			   return false;
		   }
	} 

    private static EomAlarmWorkMapper alarmWorkMapper;

应为static类加载时候初始化，

package com.ailk.utils;

import org.apache.commons.lang3.Validate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

/**
 * 以静态变量保存Spring ApplicationContext, 
 */
public class ContextUtils implements ApplicationContextAware, DisposableBean {

	private static ApplicationContext applicationContext = null;
	private static PropertiesLoader propertiesLoader;

	private static Logger logger = LoggerFactory.getLogger(ContextUtils.class);
	
	public static String getConfig(String key) {
		if (propertiesLoader == null){
			propertiesLoader = new PropertiesLoader("config.properties");
		}
		return propertiesLoader.getProperty(key);
	}
	/**
	 * 取得存储在静态变量中的ApplicationContext.
	 */
	public static ApplicationContext getApplicationContext() {
		assertContextInjected();
		return applicationContext;
	}

	/**
	 * 从静态变量applicationContext中取得Bean, 自动转型为所赋值对象的类型.
	 */
	@SuppressWarnings("unchecked")
	public static <T> T getBean(String name) {
		assertContextInjected();
		return (T) applicationContext.getBean(name);
	}

	/**
	 * 从静态变量applicationContext中取得Bean, 自动转型为所赋值对象的类型.
	 */
	public static <T> T getBean(Class<T> requiredType) {
		assertContextInjected();
		return applicationContext.getBean(requiredType);
	}

	/**
	 * 清除ContextUtils中的ApplicationContext为Null.
	 */
	public static void clearHolder() {
		logger.debug("清除ContextUtils中的ApplicationContext:"
				+ applicationContext);
		applicationContext = null;
	}

	/**
	 * 实现ApplicationContextAware接口, 注入Context到静态变量中.
	 */
	@Override
	public void setApplicationContext(ApplicationContext applicationContext) {
		if (ContextUtils.applicationContext != null) {
			logger.warn("ContextUtils中的ApplicationContext被覆盖, 原有ApplicationContext为:" + ContextUtils.applicationContext);
		}

		ContextUtils.applicationContext = applicationContext; // NOSONAR
	}

	/**
	 * 实现DisposableBean接口, 在Context关闭时清理静态变量.
	 */
	@Override
	public void destroy() throws Exception {
		ContextUtils.clearHolder();
	}

	/**
	 * 检查ApplicationContext不为空.
	 */
	private static void assertContextInjected() {
		Validate.validState(applicationContext != null, "applicaitonContext属性未注入, 请在applicationContext.xml中定义ContextUtils");
	}
}