Neither BindingResult nor plain target object for bean name 'TeachLab' available as request attribut

这个问题百度了下，主要是spring mvc在绑定对象的时候出了问题，我本地具体的解决办法是加如下代码

	@ModelAttribute("TeachLab")
	public TeachLab get(TeachLab teachLab){
		return teachLab;
	}