java.lang.IllegalArgumentException: Attribute value must not be null错误
错误原因是我在session中放入的空值导致java.lang.IllegalArgumentException: Attribute value must not be null,设置值之前判断一下空值//如下代码public String about(Model model) {BlogUser user = blogUserService.findAdminUser();//user是null则会造成这个错误model.addAttribute("user", user
