Java中获取applicationcontext(应用上下文)

package com.wl.iwbservice.util;

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

@Component
public class SpringContextUtil implements ApplicationContextAware {
    private static ApplicationContext appCtx;

    /**
     * @param applicationContext
     *            ApplicationContext.
     * @throws BeansException
     */
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        appCtx = applicationContext;
    }

    public static ApplicationContext getApplicationContext() {
        return appCtx;
    }

    public static Object getBean(String beanName) {
        return appCtx.getBean(beanName);
    }
}

说明： 当一个类实现了这个接口（ApplicationContextAware）之后，这个类就可以方便获得ApplicationContext中的所有bean，可以调取spring容器中管理的各个bean。

详情：https://blog.csdn.net/wwd0501/article/details/63682793