Spring 获取Bean ApplicationContextAware的使用

创建类继承ApplicationContextAware

package net.ybclass.online_ybclass.utils;

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

/**
* @ClassName：AppUtil
* @Description：获取bean工具类
* @Author：chenyb
* @Date：2020/8/20 11:39 上午
* @Versiion：1.0
*/
@Component
public class AppUtil implements ApplicationContextAware {
private static ApplicationContext applicationContext;
@Override
public void setApplicationContext(ApplicationContext args) throws BeansException {
this.applicationContext=args;
}
public static Object getObject(String id){
return applicationContext.getBean(id);
}
}

使用

@RestController
public class TestController {
@GetMapping("test")
public JsonData test()
{
VideoService videoService= (VideoService)AppUtil.getObject("videoServiceImpl");
return JsonData.buildSuccess(videoService.listVideo());
}
}