package com.dataeasy.server.utiis;

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 SpringUtils implements ApplicationContextAware {

    private static ApplicationContext applicationContext;

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

    /**
     * 通过class获取Bean.
     *
     * @param clazz
     * @param <T>
     * @return
     */
    public static <T> T getBean(Class<T> clazz) {
        return applicationContext.getBean(clazz);
    }

    /**
     * 通过bean的名称获取对应的bean
     * @param beanName bean的名称
     * @return
     * @param <T>
     */
    public static <T> T getBean(String beanName) {
        return (T) applicationContext.getBean(beanName);
    }
}