.Net Framework创建grpc
1.环境要求
.Net Framework 4.8
.Net Core 版本： https://www.cnblogs.com/dennisdong/p/17120990.html
2.Stub和Proto
2.1 新建类库
GrpcCommon
2.2 新建文件夹和配置文件
文件夹：Certs,Helpers,Models,Protos\Google,Stubs\Example
class类：AppConfigs.cs
using System;
using System.Configuration;
namespace GrpcCommon
{
public class AppConfigs
{
public static string Host = GetValue("host");
public static int HttpPort = Convert.ToInt32(GetValue("httpPort"));
public static int HttpsPort = Convert.ToInt32(GetValue("httpsPort"));
public static string Issuer = GetValue("issuer");
public static int Expire = Convert.ToInt32(GetValue("expire"));
public static string SecurityKey = GetValue("securityKey");
public static string GetValue(string key)
{
try
{
return ConfigurationManager.AppSettings[key].Trim();
}
catch (Exception e)
{
throw new Exception($"AppConfig 配置获取异常,{e.StackTrace}");
}
}
public static T GetValue<T>(string key) where T : class
{
try
{
return ConfigurationManager.AppSettings[key].Trim() as T;
}
catch (Exception e)
{
throw new Exception($"AppConfig 配置获取异常,{e.StackTrace}");
}
}
}
}
添加程序集引用：System.Configuration
2.3 新建proto文件
在Protos下新建example.proto文件
syntax = "proto3";
package example;
import "Protos/Google/struct.proto";
option csharp_namespace = "GrpcExample";
service ExampleServer {
// Unary
rpc UnaryCall (ExampleRequest) returns (ExampleResponse);
// Server streaming
rpc StreamingFromServer (ExampleRequest) returns (stream ExampleResponse);
// Client streaming
rpc StreamingFromClient (stream ExampleRequest) returns (ExampleResponse);
// Bi-directional streaming
rpc StreamingBothWays (stream ExampleRequest) returns (stream ExampleResponse);
}
message ExampleRequest {
string securityKey = 1;
string userId = 2;
google.protobuf.Struct userDetail = 3;
string token = 4;
}
message ExampleResponse {
int32 code = 1;
bool result = 2;
string message = 3;
}
2.4 下载google protobuf文件
https://github.com/protocolbuffers/protobuf/releases/download/v21.12/protoc-21.12-win64.zip
其他版本参考：https://github.com/protocolbuffers/protobuf/releases
下载不了的文章末尾有源码地址
下载解压后将\include\google\protobuf中的所有文件放在Protos下的Google中
2.5 NuGet安装依赖包
GrpcCommon右键管理NuGet程序包安装以下依赖：
Google.Protobuf 3.21.12,Grpc.Core 2.46.6,Grpc.Tools 2.51.0,JWT 10.0.2
2.6 生成stub文件
项目根目录下按下Shift+鼠标右键在此打开命令窗口
.\packages\Grpc.Tools.2.51.0\tools\windows_x64\protoc.exe -I .\GrpcCommon\ .\GrpcCommon\Protos\example.proto --csharp_out .\GrpcCommon\Stubs\Example --grpc_out .\GrpcCommon\Stubs\Example --plugin=protoc-gen-grpc=.\packages\Grpc.Tools.2.51.0\tools\windows_x64\grpc_csharp_plugin.exe
运行之后会在Example文件夹下生成Example.cs和ExampleGrpc.cs
2.7 配置JWT
2.7.1 在Models下新建JwtToken
/// <summary>
/// Jwt Token
/// </summary>
public class JwtToken
{
/// <summary>
/// 授权者
/// </summary>
public string userid { get; set; }
/// <summary>
/// Token过期时间
/// </summary>
public long exp { get; set; }
/// <summary>
/// Issuer
/// </summary>
public string iss { get; set; }
}
2.7.2 在Models下新建UserDetails
public class UserDetails
{
public string UserName { get; set; }
public int Age { get; set; }
public IEnumerable<string> Friends { get; set; }
}
2.7.2 在Helpers下新建JwtHelper
using System;
using System.Text;
using GrpcCommon.Models;
using JWT;
using JWT.Algorithms;
using JWT.Exceptions;
using JWT.Serializers;
#pragma warning disable CS0618
namespace GrpcCommon.Helpers
{
public class JwtHelper
{
/// <summary>
/// 颁发JWT Token
/// </summary>
/// <param name="securityKey"></param>
/// <param name="userName"></param>
/// <returns></returns>
public static string GenerateJwt(string securityKey, string userName)
{
//var securityKey = AppConfigs.SecurityKey;
var issuer = AppConfigs.Issuer;
var expire = AppConfigs.Expire;
var expTime = new DateTimeOffset(DateTime.Now.AddSeconds(expire)).ToUnixTimeSeconds();
//身份验证信息
var jwtToken = new JwtToken { userid = userName, exp = expTime, iss = issuer };
var key = Encoding.UTF8.GetBytes(securityKey);
IJwtAlgorithm algorithm = new HMACSHA256Algorithm(); //加密方式
IJsonSerializer serializer = new JsonNetSerializer(); //序列化Json
IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder(); //base64加解密
IJwtEncoder encoder = new JwtEncoder(algorithm, serializer, urlEncoder); //JWT编码
var token = encoder.Encode(jwtToken, key); //生成令牌
return token;
}
/// <summary>
/// 校验解析Jwt Token
/// </summary>
/// <returns></returns>
public static Tuple<bool, string> ValidateJwt(string token, string secret)
{
try
{
IJsonSerializer serializer = new JsonNetSerializer();
IDateTimeProvider provider = new UtcDateTimeProvider();
IJwtValidator validator = new JwtValidator(serializer, provider);
IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder();
IJwtAlgorithm alg = new HMACSHA256Algorithm();
IJwtDecoder decoder = new JwtDecoder(serializer, validator, urlEncoder, alg);
var payLoad = decoder.Decode(token, secret);
//校验通过，返回解密后的字符串
return new Tuple<bool, string>(true, payLoad);
}
catch (TokenExpiredException expired)
{
//token过期
return new Tuple<bool, string>(false, expired.Message);
}
catch (SignatureVerificationException sve)
{
//签名无效
return new Tuple<bool, string>(false, sve.Message);
}
catch (Exception err)
{
// 解析出错
Console.WriteLine(err.StackTrace);
return new Tuple<bool, string>(false, err.Message);
}
}
}
}
3.搭建grpc服务端
3.1 新建控制台应用程序
GrpcServer
3.2 安装依赖包
Google.Protobuf 3.21.12,Grpc.Core 2.46.6,Newtonsoft.Json 13.0.2
3.3 新建服务类
ExampleService.cs
using System;
using System.Threading.Tasks;
using Grpc.Core;
using GrpcCommon.Helpers;
using GrpcCommon.Models;
using GrpcExample;
using Newtonsoft.Json;
namespace GrpcServer.Services
{
public class ExampleService : ExampleServer.ExampleServerBase
{
public override Task<ExampleResponse> UnaryCall(ExampleRequest request, ServerCallContext context)
{
Console.WriteLine(request.ToString());
var tokenRes = JwtHelper.ValidateJwt(request.Token, request.SecurityKey);
// 正常响应客户端一次
ExampleResponse result;
if (tokenRes.Item1)
{
var payLoad = JsonConvert.DeserializeObject<JwtToken>(tokenRes.Item2);
if (!request.UserId.Equals(payLoad.userid))
{
result = new ExampleResponse
{
Code = -1,
Result = false,
Message = "userid不匹配"
};
}
else
{
var userDetail = JsonConvert.DeserializeObject<UserDetails>(request.UserDetail.Fields.ToString());
result = new ExampleResponse
{
Code = 200,
Result = true,
Message = $"UnaryCall 单次响应: {request.UserId},{userDetail.UserName}"
};
}
}
else
{
// 正常响应客户端一次
result = new ExampleResponse
{
Code = -1,
Result = false,
Message = tokenRes.Item2
};
}
return Task.FromResult(result);
}
public override async Task StreamingFromServer(ExampleRequest request, IServerStreamWriter<ExampleResponse> responseStream, ServerCallContext context)
{
// 无限响应客户端
while (!context.CancellationToken.IsCancellationRequested)
{
await responseStream.WriteAsync(new ExampleResponse
{
Code = 200,
Result = true,
Message = $"StreamingFromServer 无限响应: {Guid.NewGuid()}"
});
await Task.Delay(TimeSpan.FromSeconds(3), context.CancellationToken);
}
}
public override async Task<ExampleResponse> StreamingFromClient(IAsyncStreamReader<ExampleRequest> requestStream, ServerCallContext context)
{
// 处理请求
while (await requestStream.MoveNext())
{
Console.WriteLine(requestStream.Current.UserId);
}
// 响应客户端
return new ExampleResponse
{
Code = 200,
Result = true,
Message = $"StreamingFromClient 单次响应: {Guid.NewGuid()}"
};
}
public override async Task StreamingBothWays(IAsyncStreamReader<ExampleRequest> requestStream, IServerStreamWriter<ExampleResponse> responseStream, ServerCallContext context)
{
#region 服务器响应客户端一次
// 处理请求
//while (await requestStream.MoveNext())
//{
// Console.WriteLine(requestStream.Current.UserName);
//}
//请求处理完成之后只响应一次
//await responseStream.WriteAsync(new ExampleResponse
//{
// Code = 200,
// Result = true,
// Message = $"StreamingBothWays 单次响应: {Guid.NewGuid()}"
//});
//await Task.Delay(TimeSpan.FromSeconds(3), context.CancellationToken);
#endregion
#region 服务器响应客户端多次
// 处理请求
var readTask = Task.Run(async () =>
{
while (await requestStream.MoveNext())
{
Console.WriteLine(requestStream.Current.UserId);
}
});
// 请求未处理完之前一直响应
while (!readTask.IsCompleted)
{
await responseStream.WriteAsync(new ExampleResponse
{
Code = 200,
Result = true,
Message = $"StreamingBothWays 请求处理完之前的响应: {Guid.NewGuid()}"
});
await Task.Delay(TimeSpan.FromSeconds(3), context.CancellationToken);
}
// 也可以无限响应客户端
//while (!context.CancellationToken.IsCancellationRequested)
//{
// await responseStream.WriteAsync(new ExampleResponse
// {
// Code = 200,
// Result = true,
// Message = $"StreamingFromServer 无限响应: {Guid.NewGuid()}"
// });
// await Task.Delay(TimeSpan.FromSeconds(3), context.CancellationToken);
//}
#endregion
}
}
}
3.4 AppConfig添加配置
<appSettings>
<!--主机配置-->
<add key="host" value="0.0.0.0" />
<add key="httpPort" value="5000" />
<add key="httpsPort" value="7000" />
<!--Jwt配置-->
<add key="securityKey" value="grpc.dennis.com" />
<add key="issuer" value="https://grpc.dennis.com" />
<!--token过期时间：分钟-->
<add key="expire" value="1" />
</appSettings>
3.5 修改程序入口
修改Program.cs，SSL证书文章后面有说明
using System;
using Grpc.Core;
using System.Collections.Generic;
using System.IO;
using GrpcCommon;
using GrpcExample;
using GrpcServer.Services;
private static void Main()
{
var host = AppConfigs.Host;
var httpPort = AppConfigs.HttpPort;
var httpsPort = AppConfigs.HttpsPort;
var cert = File.ReadAllText("Certs\\cert.pem");
var key = File.ReadAllText("Certs\\key.pem");
var server = new Server
{
Services =
{
ExampleServer.BindService(new ExampleService())
},
Ports =
{
new ServerPort(host, Convert.ToInt32(httpPort), ServerCredentials.Insecure),
new ServerPort(host, Convert.ToInt32(httpsPort), new SslServerCredentials(
new List<KeyCertificatePair>
{
new KeyCertificatePair(cert, key)
}))
}
};
server.Start();
Console.WriteLine($"Grpc Server Listening on http://{host}:{httpPort}, https://{host}:{httpsPort}");
Console.ReadLine();
server.ShutdownAsync().Wait();
}
4.搭建grpc客户端
4.1 新建控制台应用程序
GrpcClient
4.2 安装依赖包
Google.Protobuf 3.21.12,Grpc.Core 2.46.6,Newtonsoft.Json 13.0.2
4.3 新建测试类
ExampleUnit.cs
using System;
using Google.Protobuf.WellKnownTypes;
using System.Collections.Generic;
using System.IO;
using System.Threading.Tasks;
using Grpc.Core;
using GrpcExample;
using GrpcCommon.Helpers;
namespace GrpcClient.Test
{
internal class ExampleUnit
{
public static void Run()
{
// 常规请求响应
UnaryCall();
// 服务器流响应
StreamingFromServer();
// 客户端流响应
StreamingFromClient();
// 双向流响应
StreamingBothWays();
}
/// <summary>
/// 创建客户端链接
/// </summary>
/// <param name="enableSsl"></param>
/// <returns></returns>
private static ExampleServer.ExampleServerClient CreateClient(bool enableSsl = true)
{
Channel channel;
if (enableSsl)
{
// ssl加密连接
const string serverUrl = "localhost:7000";
Console.WriteLine($"尝试链接服务器,https://{serverUrl}");
var credentials = new SslCredentials(File.ReadAllText("Certs\\cert.pem"));
channel = new Channel(serverUrl, credentials, new List<ChannelOption>
{
new ChannelOption(ChannelOptions.SslTargetNameOverride, "grpc.dennis.com")
});
}
else
{
// 不安全连接
const string serverUrl = "localhost:5000";
Console.WriteLine($"尝试链接服务器,http://{serverUrl}");
channel = new Channel(serverUrl, ChannelCredentials.Insecure);
}
Console.WriteLine("服务器链接成功");
return new ExampleServer.ExampleServerClient(channel);
}
private static async void UnaryCall()
{
var client = CreateClient();
var userId = Guid.NewGuid().ToString();
const string securityKey = "Dennis!@#$%^";
var token = JwtHelper.GenerateJwt(securityKey, userId);
var result = await client.UnaryCallAsync(new ExampleRequest
{
SecurityKey = securityKey,
UserId = userId,
UserDetail = new Struct
{
Fields =
{
["userName"] = Value.ForString("Dennis"),
["age"] = Value.ForString("18"),
["friends"] = Value.ForList(Value.ForString("Roger"), Value.ForString("YueBe"))
}
},
Token = token
});
Console.WriteLine($"Code={result.Code},Result={result.Result},Message={result.Message}");
}
private static async void StreamingFromServer()
{
var client = CreateClient();
var result = client.StreamingFromServer(new ExampleRequest
{
UserId = "Dennis"
});
while (await result.ResponseStream.MoveNext())
{
var resp = result.ResponseStream.Current;
Console.WriteLine($"Code={resp.Code},Result={resp.Result},Message={resp.Message}");
}
}
private static async void StreamingFromClient()
{
var client = CreateClient();
var result = client.StreamingFromClient();
// 发送请求
for (var i = 0; i < 5; i++)
{
await result.RequestStream.WriteAsync(new ExampleRequest
{
UserId = $"StreamingFromClient 第{i}次请求"
});
await Task.Delay(TimeSpan.FromSeconds(1));
}
// 等待请求发送完毕
await result.RequestStream.CompleteAsync();
var resp = result.ResponseAsync.Result;
Console.WriteLine($"Code={resp.Code},Result={resp.Result},Message={resp.Message}");
}
private static async void StreamingBothWays()
{
var client = CreateClient();
var result = client.StreamingBothWays();
// 发送请求
for (var i = 0; i < 5; i++)
{
await result.RequestStream.WriteAsync(new ExampleRequest
{
UserId = $"StreamingBothWays 第{i}次请求"
});
await Task.Delay(TimeSpan.FromSeconds(1));
}
// 处理响应
var respTask = Task.Run(async () =>
{
while (await result.ResponseStream.MoveNext())
{
var resp = result.ResponseStream.Current;
Console.WriteLine($"Code={resp.Code},Result={resp.Result},Message={resp.Message}");
}
});
// 等待请求发送完毕
await result.RequestStream.CompleteAsync();
// 等待响应处理
await respTask;
}
}
}
4.4 添加配置信息
<appSettings>
<!--主机配置-->
<add key="host" value="0.0.0.0" />
<add key="httpPort" value="5000" />
<add key="httpsPort" value="7000" />
<!--Jwt配置-->
<add key="securityKey" value="grpc.dennis.com" />
<add key="issuer" value="https://grpc.dennis.com" />
<!--token过期时间：分钟-->
<add key="expire" value="10" />
</appSettings>
4.5 修改程序入口
修改Program.cs
using System;
using GrpcClient.Test;
namespace GrpcClient
{
internal class Program
{
static void Main(string[] args)
{
// Example 测试
ExampleUnit.Run();
Console.ReadKey();
}
}
}
5.SSL证书生成
5.1 下载安装openssl
参考文章：https://www.cnblogs.com/dingshaohua/p/12271280.html
5.2 生成证书
在GrpcCommon的Certs下右键打开命令窗口输入openssl
5.2.1 生成key
genrsa -out key.pem 2048
5.2.1 生成pem证书
req -new -x509 -key key.pem -out cert.pem -days 3650
5.2.1 pem证书转换成pfx证书
pkcs12 -export -out cert.pfx -inkey key.pem -in cert.pem
6.运行项目
6.1 拷贝证书
把整个Certs文件夹分别拷贝到GrpcServer和GrpcClient下的\bin\Debug\Certs
6.2 启动程序
先运行GrpcServer在运行GrpcClient即可
6.3 调试
右键解决方案-->属性-->启动项目-->选择多个启动项目-->F5调试即可
