SpringContextUtil

package com.jxdinfo.hussar.util;

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

/**
 * Spring 上下文工具类
 */
@Component
public class SpringContextUtil implements ApplicationContextAware {

    private static ApplicationContext applicationContext;


    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {

        SpringContextUtil.applicationContext = applicationContext;
    }

    /**
     * 获取上下文
     */
    public static ApplicationContext getApplicationContext(){
        return  applicationContext;
    }

    /**
     * 获取bean的方法  类名首字母一定要小写
     * @param beanId
     * @return
     * @throws BeansException
     */
    public static Object getBean(String beanId) throws BeansException {
        return applicationContext.getBean(beanId);
    }

    public static <T> T getBean(Class<T> clazz) throws BeansException {
        return getApplicationContext().getBean(clazz);
    }
}