blazor、MVC和IIS的路由问题

Question

我正在尝试让blazor在IIS中托管的现有MVC应用程序中工作。我遵循了示例here

剃刀页面也有类似的例子。它们在IIS express和自托管中都能很好地工作，但是当我尝试在IIS中使用它们时，它们都失败了。

当驻留在IIS中时，框架注册到站点，而不是应用程序。当在chrome中打开时，控制台会显示以下错误：

blazor.server.js:1无法加载资源:服务器响应状态为503 (服务不可用) favicon.ico:1加载资源失败:服务器响应状态为503 (服务不可用)

我尝试将框架脚本引用从<script src="_framework/blazor.server.js"></script>更改为<script src="~/_framework/blazor.server.js"></script>。这解决了最初的错误，但blazor在下一步会失败：

[2020-03-05T09:46:07.566Z] Information: Normalizing '_blazor' to 'http://localhost/_blazor'.
_blazor/negotiate?negotiateVersion=1:1 Failed to load resource: the server responded with a status of 503 (Service Unavailable)
blazor.server.js:1 [2020-03-05T09:46:07.611Z] Error: Failed to complete negotiation with the server: Error: Service Unavailable
e.log @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
s @ blazor.server.js:1
Promise.then (async)
c @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
B @ blazor.server.js:1
e.getNegotiationResponse @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
B @ blazor.server.js:1
e.startInternal @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
B @ blazor.server.js:1
e.start @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
v @ blazor.server.js:1
e.startInternal @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
v @ blazor.server.js:1
e.startWithStateTransitions @ blazor.server.js:1
e.start @ blazor.server.js:1
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
r @ blazor.server.js:8
S @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
r @ blazor.server.js:8
E @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
n @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
Show 22 more frames
blazor.server.js:1 [2020-03-05T09:46:07.612Z] Error: Failed to start the connection: Error: Service Unavailable
e.log @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
s @ blazor.server.js:1
Promise.then (async)
c @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
B @ blazor.server.js:1
e.startInternal @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
B @ blazor.server.js:1
e.start @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
v @ blazor.server.js:1
e.startInternal @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
v @ blazor.server.js:1
e.startWithStateTransitions @ blazor.server.js:1
e.start @ blazor.server.js:1
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
r @ blazor.server.js:8
S @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
r @ blazor.server.js:8
E @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
n @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
Show 14 more frames
blazor.server.js:15 [2020-03-05T09:46:07.612Z] Error: Error: Service Unavailable
e.log @ blazor.server.js:15
C @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
s @ blazor.server.js:8
Promise.then (async)
c @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
r @ blazor.server.js:8
S @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
r @ blazor.server.js:8
E @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
n @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
blazor.server.js:1 Uncaught (in promise) Error: Cannot send data if the connection is not in the 'Connected' State.
at e.send (blazor.server.js:1)
at e.sendMessage (blazor.server.js:1)
at e.sendWithProtocol (blazor.server.js:1)
at blazor.server.js:1
at new Promise ()
at e.invoke (blazor.server.js:1)
at e. (blazor.server.js:15)
at blazor.server.js:15
at Object.next (blazor.server.js:15)
at blazor.server.js:15
e.send @ blazor.server.js:1
e.sendMessage @ blazor.server.js:1
e.sendWithProtocol @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
e.invoke @ blazor.server.js:1
(anonymous) @ blazor.server.js:15
(anonymous) @ blazor.server.js:15
(anonymous) @ blazor.server.js:15
(anonymous) @ blazor.server.js:15
r @ blazor.server.js:15
e.startCircuit @ blazor.server.js:15
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
a @ blazor.server.js:8
Promise.then (async)
c @ blazor.server.js:8
a @ blazor.server.js:8
Promise.then (async)
c @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
r @ blazor.server.js:8
E @ blazor.server.js:8
(anonymous) @ blazor.server.js:8
n @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
(anonymous) @ blazor.server.js:1
favicon.ico:1 Failed to load resource: the server responded with a status of 503 (Service Unavailable)

signalr集线器似乎指向IIS中的根站点路径，而不是应用程序路径。

有人知道我该怎么解决这个问题吗？要重现这个问题，只需下载源代码here并设置指向IIS的调试配置

谢谢

保罗

Answer 1

多亏了来自mars的agua的评论，解决方案是将以下标签添加到_layout.cshtml的头部

​

例如

    <head>
    <meta charset="utf-8" />
    <base href="~/" />