ASP.NET Core2.2 和2.1 版本中对cookie的设置和存储

 services.Configure<CookiePolicyOptions>(option =>{
                option.CheckConsentNeeded=ContextBoundObject=>true;
                option.MinimumSameSitePolicy=SameSiteMode.None;
            }); //添加cookie的服务

 app.UseCookiePolicy();      //启用cookie服务

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;


//参数验证，路由的参数验证配置
using Microsoft.AspNetCore.Routing;
using Microsoft.AspNetCore.Routing.Constraints;
//mysql基础配置引用
using Online.Examination.Web.Repositories;
using Online.Examination.Web.Controllers;
using Online.Examination.Web.Repositories.DBBase;

$(function() {
    $.post("/login/OkCookie", function() {}) //如果使用cookie,客户端必须向服务端发送一次请求////
})

function login() {
    $(".error").text("");
    var uname = $("input[name='name']").val();
    var pwd = $("input[name='pwd']").val();
    var type = $("input[name='login_type']:checked").val();
    if (uname == "" || pwd == "") return false;
    $.post("/login/login", { "uname": uname, "pwd": pwd, "type": type }, function(msg) {
        if (msg.message == "success") {
            window.location.href = "index.html?id=" + msg.users.name;
        } else {
            $(".error").text("密码或账号错误");
        }
    })
}

 protected void DeleteCookies(string key)    //删除指定的cookie
        {
            HttpContext.Response.Cookies.Delete(key);
        }

        protected string GetCookies(string key)     //获取指定的cookie
        {
            HttpContext.Request.Cookies.TryGetValue(key, out string value);
            if (string.IsNullOrEmpty(value))
                value = string.Empty;
            return value;
        }