新建 springBeanUtil.java
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
/**
* @author: 马宾
* @DATA: 2020/11/22 16:27
* @description: SpringContextUtils todo
* @Belong: JuLink-Iot
**/
@Component
public class SpringBeanUtil implements ApplicationContextAware {
private static ApplicationContext applicationContext = null;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
SpringBeanUtil.applicationContext = applicationContext;
}
public static Object getBeanByName(String beanName) {
if (applicationContext == null) {
return null;
}
return applicationContext.getBean(beanName);
}
public static <T> T getBean(Class<T> type) {
return applicationContext.getBean(type);
}
//获取applicationContext
public static ApplicationContext getApplicationContext() {
return applicationContext;
}
}
然后在需要注入的地方,这样用:
private AlarmService alarmService;
this.alarmService = SpringBeanUtil.getBean(AlarmService.class);
或:
private static NettyMessageHandleService nettyMessageHandleService;
static {
nettyMessageHandleService = SpringBeanUtil.getBean(NettyMessageHandleService.class);
}
主要思路就是从springboot容器里去取。