工具類：獲取 spring 容器中 bean

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 :獲取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;
    }

    /**
     * 通過name獲取 Bean.
     *
     * @param name
     * @return
     */
    public static Object getBean(String name) {
        return applicationContext.getBean(name);
    }

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

    /**
     * 通過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 : 此工具類出自我一位帥氣、和善的同事：pjf，本想標爲轉載，但沒有原文連接 ...