解决spring boot中普通类中使用service为null 的方法

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
public final class SpringUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext = null;
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        // TODO Auto-generated method stub
        if (SpringUtil.applicationContext == null) {
            SpringUtil.applicationContext = applicationContext;
            System.out.println("=============================================="+
                    "========ApplicationContext配置成功,在普通类可以通过调用ToolSpring.getAppContext()获取applicationContext对象,applicationContext="
                            + applicationContext + "==========");
        }
    }
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }
    //通过类名称获取Bean.
    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }
    //通过class获取Bean.
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }
}