Javascript 使用表单输入设置 cookie

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时间:2020-08-23 05:09:19  来源:igfitidea点击:

Setting cookies with form input

javascriptformscookies

提问by Hans.Gundlach

I am trying to make a username cookie using the user's input to a web form. However it's not working and I don't know why. Do you know what the problem is?

我正在尝试使用用户对 Web 表单的输入来制作用户名 cookie。但是它不起作用,我不知道为什么。你知道问题是什么吗?

<form>
    <input type="text" value="Enter Your Nickname" id="nameBox">
    <input type="button" value="Go!" id="submit" onClick="putCookie">
<form>


<script>
    var today = new Date();
    var expiry = new Date(today.getTime() + 30 * 24 * 3600 * 1000); // plus 30 days

    function setCookie(name, value){
        document.cookie=name + "=" + escape(value) + "; path=/; expires=" + expiry.toGMTString();
    }
    //this should set the UserName cookie to the proper value;
    function storeValues(form){
        setCookie("userName", form.submit.value);
        return true;
    }

</script>
</body>

采纳答案by Ruchira Shree

You can check below code, it might help you.

您可以检查以下代码,它可能对您有所帮助。

<html>
<head>
    <script>
var today = new Date();
  var expiry = new Date(today.getTime() + 30 * 24 * 3600 * 1000); // plus 30 days

  function setCookie(name, value)
  {
    document.cookie=name + "=" + escape(value) + "; path=/; expires=" + expiry.toGMTString();
  }
function putCookie(form)
                //this should set the UserName cookie to the proper value;
  {
   setCookie("userName", form[0].usrname.value);

    return true;
  }

  </script>
</head>
<body>
<form>
 <input type="text" value="Enter Your Nickname" id="nameBox" name='usrname'>
 <input type="button" value="Go!" id="submit" onclick="putCookie(document.getElementsByTagName('form'));">
</form>
</body>


</html>

While defined function name should be putCookies instead of storeValues and function call you can do this way: putCookie(document.getElementsByTagName('form'));

虽然定义的函数名应该是 putCookies 而不是 storeValues 和函数调用你可以这样做: putCookie(document.getElementsByTagName('form'));

Inside the function definition cookie values can be get from the form as below: setCookie("userName", form[0].usrname.value);

在函数定义中,cookie 值可以从如下表单中获取: setCookie("userName", form[0].usrname.value);

Form element should have attribute : name='usrname'

表单元素应该有属性:name='usrname'

It will surely set cookies for your username with form element.

它肯定会使用表单元素为您的用户名设置 cookie。

回答by zorgan

Change the form to:

将表格更改为:

<form onsubmit="storeValues(this)">
<input type="text" value="Enter Your Nickname" id="nameBox">
<input type="submit" value="Go!" id="submit">
<form>

And storeValues(form) function to:

和 storeValues(form) 函数:

{
   setCookie("userName", form.nameBox.value);
   return true;
}