VUE前端cookie操作

pobu168

42508人浏览 · 2017-06-06 16:25:31

pobu168 · 2017-06-06 16:25:31 发布

如下是简单cookie操作，当前仅限前端实例

要注意的有两点：

1、cookie内容存贮的名称

2、删除cookie是通过设置过期为过去时间实现的

<body>
<div id="app">
    <button @click="clearCookie()">
        清除cookie
    </button>
</div>
</body>
<script>
    let app = new Vue({
        el: "#app",
        data: {
        },
        created: function () {
            this.checkCookie();
        },
        methods: {
            //设置cookie
            setCookie: function (cname, cvalue, exdays) {
                var d = new Date();
                d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
                var expires = "expires=" + d.toUTCString();
                console.info(cname + "=" + cvalue + "; " + expires);
                document.cookie = cname + "=" + cvalue + "; " + expires;
                console.info(document.cookie);
            },
            //获取cookie
            getCookie: function (cname) {
                var name = cname + "=";
                var ca = document.cookie.split(';');
                for (var i = 0; i < ca.length; i++) {
                    var c = ca[i];
                    while (c.charAt(0) == ' ') c = c.substring(1);
                    if (c.indexOf(name) != -1) return c.substring(name.length, c.length);
                }
                return "";
            },
            //清除cookie
            clearCookie: function () {
                this.setCookie("username", "", -1);

            },
            checkCookie: function () {
                var user = this.getCookie("username");
                if (user != "") {
                    alert("Welcome again " + user);
                } else {
                    user = prompt("Please enter your name:", "");
                    if (user != "" && user != null) {
                        this.setCookie("username", user, 365);
                    }
                }
            }
        }
    })
</script>

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