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

    public SpringContextUtil() {
    }

    public static <T> T getBean(Class<T> clzName) throws BeansException {
        return applicationContext.getBean(clzName);
    }

    public void setApplicationContext(ApplicationContext applicationContext) {
        if (applicationContext == null) {
            applicationContext = applicationContext;
        }

    }

    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

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

    public static Object getBean(String name, Class requiredType) {
        return applicationContext.getBean(name, requiredType);
    }

    public static boolean containsBean(String name) {
        return applicationContext.containsBean(name);
    }

    public static boolean isSingleton(String name) {
        return applicationContext.isSingleton(name);
    }

    public static Class getType(String name) {
        return applicationContext.getType(name);
    }

    public static String[] getAliases(String name) {
        return applicationContext.getAliases(name);
    }
}