前端使用cookie
步骤一 编写方法cookie.ts

//获取cookie、
const CooieTool = {
    getCookie: (name: string) => {
        var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
        if (arr = document.cookie.match(reg))
            return (arr[2]);
        else
            return null;
    },

    //设置cookie,增加到vue实例方便全局调用
    setCookie: (c_name: any, value: any, expiredays: any) => {
        var exdate = new Date();
        exdate.setDate(exdate.getDate() + expiredays);
        document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toUTCString());
    },

    //删除cookie
    delCookie: (name: any) => {
        var exp = new Date();
        exp.setTime(exp.getTime() - 1);
        var cval = CooieTool.getCookie(name);
        if (cval != null)
            document.cookie = name + "=" + cval + ";expires=" + exp.toUTCString();
    }
}
export default CooieTool

步骤二 main.ts挂载

import CooieTool from './assets/js/cookie'

app.config.globalProperties.$CooieTool = CooieTool;// cookie处理

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步骤三 使用

// 登录时设置状态
const $CooieTool = getCurrentInstance()?.appContext.config.globalProperties.$CooieTool
$CooieTool.setCookie('isLogin',true,30)

// main.ts中配置全局的路由守卫
let isLogin = CooieTool.getCookie('isLogin')
    console.log('isLogin', isLogin)
    if (isLogin) {
        //判断是否有登录
        next();
    } else {
        //在没有登录或者登录过期的前提下，to下面的path是否为/login，如果不是则页面跳转到登录页面
        if (to.path == "/login") {
            next();
        } else {
            next({ path: "/login" }); //跳转页面到login页
        }
    }