从 9.5.16/10.4.1 开始，您可以使用 [backend.user.isLoggedIn] 或 [backend.user.isAdmin] (TSref) 用于检查 BE 用户属性.

Since 9.5.16/10.4.1, you could use [backend.user.isLoggedIn] or [backend.user.isAdmin] (TSref) for checking BE user properties.

也许这是隐藏"的更好方法通过设置 HTTP 身份验证来阻止不受欢迎的访问者的页面...

Maybe it would be a better approach to "hide" the page for unwanted visitors by setting an HTTP auth...

更新:

测试了两种变体.两个条件变体在 TYPO3 v10.4.17/10.4.19 中匹配:

Tested both variants. Both condition variants are matching in an TYPO3 v10.4.17/10.4.19:

page.200 = TEXT
[getTSFE() && getTSFE().isBackendUserLoggedIn() == true]
    page.200.value = BE-User is logged in.
[getTSFE() && getTSFE().isBackendUserLoggedIn() == false]
    page.200.value = BE-User is NOT logged in.
[global]

page.250 = TEXT
page.250.value = <hr />

page.300 = TEXT
page.300.value = BE-User is NOT logged in.
[backend.user.isLoggedIn]
    page.300.value = BE-User is logged in.
[global]

注意:要完成这项工作，您的 FE 和 BE 必须能够共享他们的会话 cookie.这意味着，两者都必须使用 相同 域(或适当配置的 cookie 域)调用.注意多域实例和带有/不带有www"的变体(www.example.com != example.com)

Notice: To get this work, your FE and BE must be able to share their session cookie. This means, both must be called with same domain (or appropriately configured cookie domain). Be aware with multi-domain instance and the variants with/without "www" (www.example.com != example.com)