实例学习JavaScript读取和写入cookie

最新推荐文章于 2023-06-28 19:46:29 发布

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最新推荐文章于 2023-06-28 19:46:29 发布

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本文链接：https://blog.youkuaiyun.com/qq_36117508/article/details/82690425

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<html>
<head>
  <title>createCookie</title>
  <script>
    function createCookie(){
      //get name and password
      var name = document.getElementById("name").value;
      var pwd = document.getElementById("pwd").value;
      //create cookie
      document.cookie = name+'|'+pwd;
      //go to showCookie.html page
      window.location.href = "showCookie.html";
    }
  </script>
</head>
<body>
  Userame:  <input id="name" type="text" /><br><br>
  Password:  <input id="pwd" type="password" /><br><br>
  <button onclick="createCookie()">Submit</submit>
</body>
</html>

createCookie.html

点击submit按钮提交cookie值，页面会自动跳转到showCookie.html

<html>
<head>
  <title>showCookie</title>
  <script>
    function showCookie(){
      //document.cookie is a string, using split() function to get cookie date in array form 
      var arr = document.cookie.split('|');
      //processing data in cookie
      var cookie_info = 'Data in cookie:<br>username is:  '+arr[0]+"<br>password is:  "+arr[1]+'<br>';
      //set content of element of id "res"
      document.getElementById("res").innerHTML = cookie_info;
    }
  </script>
</head>
<body>
  <button onclick="showCookie()">Show Cookie</button>
  <p id="res"></p>
</body>
</html>

点击showcookie，会显示里面的信息。