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  • javascript 设置cookie和取得cookie

    代吗实例:

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>cookie</title>
        <script>
            function  setCookie(name,value,expires,path,domain,secure)  {
                var cookieName=encodeURIComponent(name)+'='+encodeURIComponent(value);
                if(expires instanceof Date ) {
                    cookieName+=';expires='+expires;
                }
                if(path) {
                    cookieName+=';path='+path;
                }
                if(domain) {domain
                    cookieName+=';domain='+domain;
                }
                if(secure) {
                    cookieName+=';secure';
                }
                document.cookie=cookieName;
            }
            function  getCookie(name) {
                var cookieName=encodeURIComponent(name)+'=';
                var cookieStart = document.cookie.indexOf(cookieName);
    
                if (cookieStart>-1) {
                    var cookieEnd=document.cookie.indexOf(';',cookieStart);
                    if(cookieEnd==-1){
                        cookieEnd=documet.cookie.length;
                    }
                    cookieValue=decodeURIComponent(document.cookie.substring(cookieStart+cookieName.length,cookieEnd));
                    return   cookieValue;
                }
            }
            alert(getCookie('user'));
            alert(getCookie('email'));
            alert(getCookie('url'));
            function setCookieDate(day) {            //传递一个天数,比如传递7,就7天后失效
                var date = null;
                if (typeof day == 'number' && day > 0) {
                    date = new Date();
                    date.setDate(date.getDate() + day);
                } else {
                    throw new Error('您传递的天数不合法!必须是数字且大于0');
                }
                return date;
            }
    </script>
    </head>
    <p>设置cookie和取得cookie </p>
    </body>
    </html>

    效果:

    设置cookie

    火狐设置下隐私选项我们可以看到cookie,在localhost中我们可以看到结果。

     cookie 中的user

     cookie 中的url

    cookie 中的email

     

    取得cookie

    16:45:06   2017-09-04

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  • 原文地址:https://www.cnblogs.com/guangzhou11/p/7474340.html
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