javascript - 在 MVC Controller 中检索 Cookie

Question

我创建了一个在 document.ready 下触发的 JavaScript 函数

function setCookie(cname, cvalue, exdays) {
    var d = new Date();
    d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
    var expires = "expires=" + d.toUTCString();
    document.cookie = cname + "=" + cvalue + "; " + expires;
}

当我尝试从 MVC Controller 检索此 cookie 时...

HttpContext.Request.Cookies["cname"].Value 

我得到一个空值并显示错误。我如何获取这个 cookie 的值？

代码更新。不知道为什么它突然起作用。我不记得我更改过任何代码。

<script type="text/javascript" language="javascript">
$(document).ready(function () {
        setCookie('cname','computername',999);

});

Controller

var computername=HttpContext.Request.Cookies["cname"].Value

脚本文件

function setCookie(cname, cvalue, exdays) {
var d = new Date();
d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
var expires = "expires=" + d.toUTCString();
document.cookie = cname + "=" + cvalue + "; " + expires;

}

Answer 1

您的代码工作正常，但我认为您忘记在脚本部分内的 View 中编写javascript代码

@section scripts
{
   <script>
       $(document).ready(function () {
           setCookie("test", "test", 10);
       });

       function setCookie(cname, cvalue, exdays) {
           var d = new Date();
           d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
           var expires = "expires=" + d.toUTCString();
           document.cookie = cname + "=" + cvalue + "; " + expires;
       }
</script> 
}