工具类：获取 spring 容器中 bean

Posted 2023-02-20 微风--轻许--

前些天发现了一个巨牛的人工智能学习网站，通俗易懂，风趣幽默，忍不住分享一下给大家。点击跳转到教程。 

package com.orange.utils;

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

/** 
 * Description :获取spring容器中bean
 */
@Component
public class SpringContextUtils implements ApplicationContextAware

    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException 
        this.applicationContext=applicationContext;
    

    public static ApplicationContext getApplicationContext() 
        return applicationContext;
    

    /**
     * 通过name获取 Bean.
     *
     * @param name
     * @return
     */
    public static Object getBean(String name) 
        return applicationContext.getBean(name);
    

    /**
     * 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name,以及Clazz返回指定的Bean
     *
     * @param name
     * @param clazz
     * @param <T>
     * @return
     */
    public static <T> T getBean(String name, Class<T> clazz) 
        return applicationContext.getBean(name, clazz);
    

ps : 此工具类出自我一位帅气、和善的同事：pjf，本想标为转载，但没有原文连接 ...