06 2020 档案

摘要：Constructs a cookie with a specified name and value.The name must conform to RFC 2109. That means it can contain only ASCII alphanumeric characters an 阅读全文

摘要：modelAndView.addObject("loginUser", user); loginUser里面有username属性 当我们想获取username时，需要加上if判断，即判断loginUser不为null <th:block th:if="${loginUser!= null}"> < 阅读全文