问题描述
我在以下链接中有两个具有 Grpc 服务的简单 Web 程序集项目。
在 Visual Studio 中运行时，这两种解决方案都可以正常工作。但是，当每个解决方案都通过本地 IIS 服务器发布和托管时，没有预渲染的一个可以正常工作，而另一个则不行。
The output of the web assembly project (no prerendering) when hosted thru local IIS.
The output of the pre-rendered web assembly project when hosted thru local IIS.
错误简介：
RpcException: Status(StatusCode="Internal",Detail="Errorstarting gRPC call. HttpRequestException: 发送请求时出错。Http2ConnectionException: HTTP/2 服务器在连接上发送了无效数据。HTTP/2 错误代码'PROTOCOL_ERROR' (0x1).",DebugException="System.Net.Http.HttpRequestException: 发送请求时出错。 ---> System.Net.Http.Http2ConnectionException: HTTP/2 服务器在连接上发送了无效数据。 HTTP/2 错误代码“PROTOCOL_ERROR”（0x1）。 在 System.Net.Http.Http2Connection.ThrowProtocolError(Http2ProtocolErrorCode errorCode) 在 System.Net.Http.dll:token 0x60005f3+0x6 在 System.Net.Http.Http2Connection.ReadFrameAsync(Boolean initialFrame) 中 System.Net.Http.dll:token 0x60005bc+0x1ea 在 System.Net.Http.Http2Connection.ProcessIncomingFramesAsync() 在 System.Net.Http.dll:token 0x60005bd+0x93
预渲染项目解决方案中的代码片段，用于将 Grpc 通道注册为 startup.cs 文件中的服务：
public void ConfigureServices(IServiceCollection services)
{
services.AddControllersWithViews();
services.AddRazorPages();
services.AddGrpc();
services.AddSingleton<HttpClient>(sp =>
{
// Get the address that the app is currently running at
var server = sp.GetrequiredService<IServer>();
var addressFeature = server.Features.Get<IServerAddressesFeature>();
string baseAddress = addressFeature.Addresses.First();
return new HttpClient { BaseAddress = new Uri(baseAddress) };
});
services.AddSingleton(services =>
{
var server = services.GetrequiredService<IServer>();
var addressFeature = server.Features.Get<IServerAddressesFeature>();
string baseAddress = addressFeature.Addresses.First();
Console.WriteLine("first base in server -- " + addressFeature.Addresses.First());
Console.WriteLine("last base in server -- " + addressFeature.Addresses.Last());
var httpHandler = new GrpcWebHandler(GrpcWebMode.GrpcWeb,new httpclienthandler());
return GrpcChannel.ForAddress(baseAddress,new GrpcChannelOptions { HttpHandler = httpHandler });
});
}
代码对比截图：
Startup.cs code in non-prerendering solution vs Startup.cs code in the prerendering solution
Program.cs code in non-prerendering solution vs Program.cs code in prerendering solution
配置：
- .Net 6 预览版 5
- 我的操作系统构建版本是 19042.1052
- In IIS,the site binding is having a HTTPS connection (with a self- signed certificate)
解决方法
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