好用util添加

1.SpringContextUtil

public class SpringContextUtil {
    private static ApplicationContext applicationContext;

    public static void setApplicationContext(ApplicationContext context) {
        applicationContext = context;
    }

    public static Object getBean(String beanId) {
        return applicationContext.getBean(beanId);
    }

    public static <T> T getBean(Class<T> arg0) {
        return applicationContext.getBean(arg0);
    }
}