如何解决从.Net Framework客户端
我有一个在.Net Core中实现的gRPC服务器,我想与在.Net Framework中运行的控制台应用程序联系。
这是该问题的工作库:
https://github.com/q-bertsuit/grpc-framework-core-issue
以下.Net Core客户端工作正常:
class Program
{
static async Task Main(string[] args)
{
var input = new MyModel();
var channel = GrpcChannel.ForAddress("https://localhost:5001");
var client = new Test.TestClient(channel);
var reply = await client.SetTestAsync(input);
Console.ReadLine();
}
}
以下.Net Framework客户端引发异常:
class Program
{
static void Main(string[] args)
{
Channel channel = new Channel("https://localhost:5001",ChannelCredentials.Insecure);
var client = new Test.TestClient(channel);
MyModel request = new MyModel();
var reply = client.SetTest(request);
channel.ShutdownAsync().Wait();
Console.ReadLine();
}
}
发送请求时出现以下异常:
Grpc.Core.RpcException:'状态(StatusCode =“不可用”,Detail =“ DNS 服务解析失败:https:// localhost:5001“, DebugException =“ Grpc.Core.Internal.CoreErrorDetailException: {“ created”:“ @ 1600333768.055000000”,“ description”:“解析器瞬态 失败“,”文件“:” T:\ src \ github \ grpc \ workspace_csharp_ext_windows_x86 \ src \ core \ ext \ filters \ client_channel \ resolving_lb_policy.cc“,” file_line“:215,” referenced_errors“ :: [{” created“: “ @ 1600333768.055000000”,“说明”:“ DNS 解决服务失败: https:// localhost:5001“,”文件“:” T:\ src \ github \ grpc \ workspace_csharp_ext_windows_x86 \ src \ core \ ext \ filters \ client_channel \ resolver \ dns \ c_ares \ dns_resolver_ares.cc“,”文件行“: 378,“ grpc_status”:14,“ referenced_errors”:[{“ created”:“ @ 1600333768.055000000”,“ description”:“ C-ares 状态不是ARES_SUCCESS qtype =名称= https:// localhost:5001 is_balancer = 0:无法联系DNS 服务器”,“文件”:“ T:\ src \ github \ grpc \ workspace_csharp_ext_windows_x86 \ src \ core \ ext \ filters \ client_channel \ resolver \ dns \ c_ares \ grpc_ares_wrapper.cc“,” file_line“:287,” referenced_errors“: [{“ created”:“ @ 1600333768.055000000”,“ description”:“ C-ares 状态不是ARES_SUCCESS qtype = AAAA name = https:// localhost:5001 is_balancer = 0:无法联系DNS 服务器”,“文件”:“ T:\ src \ github \ grpc \ workspace_csharp_ext_windows_x86 \ src \ core \ ext \ filters \ client_channel \ resolver \ dns \ c_ares \ grpc_ares_wrapper.cc“,” file_line“:287}]}]}} ]}“)'
在服务器上,我收到此错误:
调试:Microsoft.AspNetCore.Server.Kestrel [17] 连接ID“ 0HM2QU64LCR9J”的错误请求数据:“无法识别的HTTP版本:'HTTP / 2.0'” Microsoft.AspNetCore.Server.Kestrel.Core.BadHttpRequestException: 无法识别的HTTP版本:位于的“ HTTP / 2.0” Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpParser
>发送FIN的连接ID“ 0HM2QU64LCR9J”,因为:“套接字传输的发送循环正常完成。”1.RejectUnknownVersion(Byte* version,Int32 length) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpParser
1.ParseRequestLine(TRequestHandler 处理程序,字节*数据,Int32长度)位于 Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpParser1.ParseRequestLine(TRequestHandler handler,ReadOnlySequence
1&缓冲区,SequencePosition&已消耗, SequencePosition&已检查) Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpParser1.Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.IHttpParser<TRequestHandler>.ParseRequestLine(TRequestHandler handler,ReadOnlySequence
1&缓冲区,SequencePosition&已消耗, SequencePosition&已检查) Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.Http1Connection.TakeStartLine(ReadOnlySequence1& buffer,SequencePosition& consumed,SequencePosition& examined) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.Http1Connection.ParseRequest(ReadOnlySequence
1& 缓冲区,SequencePosition&已消耗,SequencePosition&已检查) Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.Http1Connection.TryParseRequest(ReadResult 结果,布尔值和endConnection) Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests [TContext](IHttpApplication1 application) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequestsAsync[TContext](IHttpApplication
1 应用程序)dbug:Microsoft.AspNetCore.Server.Kestrel [10] 连接标识“ 0HM2QU64LCR9J”正在断开连接。 dbug:Microsoft.AspNetCore.Server.Kestrel [2] 连接标识“ 0HM2QU64LCR9J”已停止。 dbug:Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets [6] 连接ID“ 0HM2QU64LCR9J”收到FIN。 dbug:Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets [7]
按照建议在Kestrel中添加了Http / 2支持,但仍然出现错误:
Grpc.Core.RpcException:'状态(StatusCode =“未知”,Detail =“已接收 http2标头,状态为:307“, DebugException =“ Grpc.Core.Internal.CoreErrorDetailException: {“创建的”:“ @ 1600342649.633000000”,“说明”:“收到的http2 :status标头,非200 OK 状态“,”文件“:” T:\ src \ github \ grpc \ workspace_csharp_ext_windows_x86 \ src \ core \ ext \ filters \ http \ client \ http_client_filter.cc“,” file_line“:130,” grpc_message“:”已收到 http2标头,其状态为:307“,” grpc_status“:2,” value“:” 307“}”)'
解决方法
我不相信Channel
的构造函数参数期望该值采用URI格式;您最好的选择可能是:
Channel channel = new Channel("localhost",5001,ChannelCredentials.Insecure)
尽管可能也可以用作:
Channel channel = new Channel("localhost:5001",ChannelCredentials.Insecure);
,
我通过关注 this answer
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