取spring容器内bean的工具类

只是记录一下，以后可能可以直接抄来用 单元测试自测OK

package com.mea.pay.transaction.helper;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ApplicationObjectSupport;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;

/**
 * 取spring容器中的bean
 *
 * @author Heng.Wei
 * @date 2022-05-09
 **/
@Component
public class ApplicationContextUtil extends ApplicationObjectSupport {
          
   

    private static ApplicationContext applicationContext;

    @PostConstruct
    void init(){
          
   
        ApplicationContextUtil.applicationContext = super.getApplicationContext();
    }

    /**
     * <pre>
     * 获取springbean
     * </pre>
     *
     * @param beanName bean名称
     * @return Bean对象
     **/
    public static Object getBean(String beanName) {
          
   
        return applicationContext.getBean(beanName);
    }

    /**
     * <pre>
     * 获取springbean
     * </pre>
     *
     * @param clazz Class类
     * @return Bean对象
     **/
    public static <T> T getBean(Class<T> clazz) {
          
   
        return applicationContext.getBean(clazz);
    }

    /**
     * <pre>
     * 获取springbean
     * </pre>
     *
     * @param beanName bean名称
     * @param clazz    Class类
     * @return Bean对象
     **/
    public static <T> T getBean(String beanName, Class<T> clazz) {
          
   
        return applicationContext.getBean(beanName, clazz);
    }

}