自定义标签中@Autowired的属性为null

自定义标签中@Autowired的属性为null

解决办法：两步
1.新建一个类SpringContext，实现接口ApplicationContextAware;
public class SpringContext implements ApplicationContextAware {

    /**
     * context
     */
    @Autowired
    private static ApplicationContext context;

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

    /**
     * 获取bean
     * @param name
     * @return
     */
    public static Object getBean(String name) {
        return context.getBean(name);
    }

    /**
     * 是否包含bean
     * @param name
     * @return
     */