工具类：获取 spring 容器中 bean

柔光的暖阳◎ 2023-02-13 14:41 2阅读 0赞

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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 ...

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