为什么我在反应中获取它时没有得到会话？

Question

当我将端点粘贴到浏览器中时 url 并保存并获取会话，它就可以正常工作。

但是当我像这样用 react fetch 尝试它时：

fetch(`https://localhost:44369/api/users/save-to-session?userId=${userId}`, {
  method: "GET",
  mode: "cors",
  credentials: "include",
}).then(() => {
  fetch(`https://localhost:44369/api/users/fetch-from-session`, {
    method: "GET",
    mode: "cors",
    credentials: "include",
  })
    .then(function (body) {
      return body.text();
    })
    .then((response) => {
      console.log(response);
    });
});

我得到空值。

这是 asp.net 核心网络 api 端点

    [HttpGet]
    [Route("save-to-session")]
    public IActionResult SaveToSession(string userId)
    {
        HttpContext.Session.SetString("user", userId);
        return Content(userId);
    }

    [HttpGet]
    [Route("fetch-from-session")]
    public IActionResult FetchFromSession()
    {
        string name = HttpContext.Session.GetString("user");
        return Ok(name);
    }

可能是因为 CORS？这是在我的启动文件中：

    services.AddCors();
    services.AddMvc();

services.AddSession(options => {
                options.IdleTimeout = TimeSpan.FromMinutes(60);
                options.Cookie.HttpOnly = false;
                options.Cookie.IsEssential = true;
            });



   app.UseCors(options => options.WithOrigins("http://localhost:3000")
               .AllowAnyMethod()
               .AllowAnyHeader()
               .AllowCredentials());

Answer 1

当从 http 客户端向 https 服务器发送带有 cookie 的请求时，您应该将 Security 设置为真

services.AddSession(options => {
    options.IdleTimeout = TimeSpan.FromMinutes(60);
    options.Cookie.HttpOnly = false;
    options.Cookie.IsEssential = true;
    options.Cookie.SameSite = SameSiteMode.None;
    options.Cookie.SecurePolicy = CookieSecurePolicy.Always;
});

为什么我在反应中获取它时没有得到会话？

Why doesn't i get the session when i fetch it in react?

asp.net

session

fetch

reactjs

asp.net-core