添加项目文件。

lazy52API.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.13.35931.197 d17.13
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "lazy52API", "lazy52API\lazy52API.csproj", "{13E3BF0F-6CBC-465C-A566-FB635D87DCA9}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{13E3BF0F-6CBC-465C-A566-FB635D87DCA9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{13E3BF0F-6CBC-465C-A566-FB635D87DCA9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{13E3BF0F-6CBC-465C-A566-FB635D87DCA9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{13E3BF0F-6CBC-465C-A566-FB635D87DCA9}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {0CA45D20-65DD-42F9-9F9D-382FA58B5226}
+	EndGlobalSection
+EndGlobal

lazy52API/McpEndpointRouteBuilderExtensions.cs

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+using Microsoft.AspNetCore.Http.Features;
+using Microsoft.AspNetCore.Routing.Patterns;
+using Microsoft.AspNetCore.WebUtilities;
+using Microsoft.Extensions.Options;
+using ModelContextProtocol.Protocol.Messages;
+using ModelContextProtocol.Protocol.Transport;
+using ModelContextProtocol.Server;
+using ModelContextProtocol.Utils.Json;
+using System.Collections.Concurrent;
+using System.Diagnostics.CodeAnalysis;
+using System.Security.Cryptography;
+
+namespace WebSSE
+{
+    /// <summary>
+    /// Extension methods for <see cref="IEndpointRouteBuilder"/> to add MCP endpoints.
+    /// https://github.com/modelcontextprotocol/csharp-sdk/tree/main
+    /// </summary>
+    public static class McpEndpointRouteBuilderExtensions
+    {
+        /// <summary>
+        /// Sets up endpoints for handling MCP HTTP Streaming transport.
+        /// </summary>
+        /// <param name="endpoints">The web application to attach MCP HTTP endpoints.</param>
+        /// <param name="pattern">The route pattern prefix to map to.</param>
+        /// <param name="configureOptionsAsync">Configure per-session options.</param>
+        /// <param name="runSessionAsync">Provides an optional asynchronous callback for handling new MCP sessions.</param>
+        /// <returns>Returns a builder for configuring additional endpoint conventions like authorization policies.</returns>
+        public static IEndpointConventionBuilder MapMcp(
+            this IEndpointRouteBuilder endpoints,
+            [StringSyntax("Route")] string pattern = "",
+            Func<HttpContext, McpServerOptions, CancellationToken, Task>? configureOptionsAsync = null,
+            Func<HttpContext, IMcpServer, CancellationToken, Task>? runSessionAsync = null)
+            => endpoints.MapMcp(RoutePatternFactory.Parse(pattern), configureOptionsAsync, runSessionAsync);
+
+        /// <summary>
+        /// Sets up endpoints for handling MCP HTTP Streaming transport.
+        /// </summary>
+        /// <param name="endpoints">The web application to attach MCP HTTP endpoints.</param>
+        /// <param name="pattern">The route pattern prefix to map to.</param>
+        /// <param name="configureOptionsAsync">Configure per-session options.</param>
+        /// <param name="runSessionAsync">Provides an optional asynchronous callback for handling new MCP sessions.</param>
+        /// <returns>Returns a builder for configuring additional endpoint conventions like authorization policies.</returns>
+        public static IEndpointConventionBuilder MapMcp(this IEndpointRouteBuilder endpoints,
+            RoutePattern pattern,
+            Func<HttpContext, McpServerOptions, CancellationToken, Task>? configureOptionsAsync = null,
+            Func<HttpContext, IMcpServer, CancellationToken, Task>? runSessionAsync = null)
+        {
+            ConcurrentDictionary<string, SseResponseStreamTransport> _sessions = new(StringComparer.Ordinal);
+
+            var loggerFactory = endpoints.ServiceProvider.GetRequiredService<ILoggerFactory>();
+            var optionsSnapshot = endpoints.ServiceProvider.GetRequiredService<IOptions<McpServerOptions>>();
+            var optionsFactory = endpoints.ServiceProvider.GetRequiredService<IOptionsFactory<McpServerOptions>>();
+            var hostApplicationLifetime = endpoints.ServiceProvider.GetRequiredService<IHostApplicationLifetime>();
+
+            var routeGroup = endpoints.MapGroup(pattern);
+
+            routeGroup.MapGet("/sse", async context =>
+            {
+                // If the server is shutting down, we need to cancel all SSE connections immediately without waiting for HostOptions.ShutdownTimeout
+                // which defaults to 30 seconds.
+                using var sseCts = CancellationTokenSource.CreateLinkedTokenSource(context.RequestAborted, hostApplicationLifetime.ApplicationStopping);
+                var cancellationToken = sseCts.Token;
+
+                var response = context.Response;
+                response.Headers.ContentType = "text/event-stream";
+                response.Headers.CacheControl = "no-cache,no-store";
+
+                // Make sure we disable all response buffering for SSE
+                context.Response.Headers.ContentEncoding = "identity";
+                context.Features.GetRequiredFeature<IHttpResponseBodyFeature>().DisableBuffering();
+
+                var sessionId = MakeNewSessionId();
+                await using var transport = new SseResponseStreamTransport(response.Body, $"/message?sessionId={sessionId}");
+                if (!_sessions.TryAdd(sessionId, transport))
+                {
+                    throw new Exception($"Unreachable given good entropy! Session with ID '{sessionId}' has already been created.");
+                }
+
+                var options = optionsSnapshot.Value;
+                if (configureOptionsAsync is not null)
+                {
+                    options = optionsFactory.Create(Options.DefaultName);
+                    await configureOptionsAsync.Invoke(context, options, cancellationToken);
+                }
+
+                try
+                {
+                    var transportTask = transport.RunAsync(cancellationToken);
+
+                    try
+                    {
+                        await using var mcpServer = McpServerFactory.Create(transport, options, loggerFactory, endpoints.ServiceProvider);
+                        context.Features.Set(mcpServer);
+
+                        runSessionAsync ??= RunSession;
+                        await runSessionAsync(context, mcpServer, cancellationToken);
+                    }
+                    finally
+                    {
+                        await transport.DisposeAsync();
+                        await transportTask;
+                    }
+                }
+                catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested)
+                {
+                    // RequestAborted always triggers when the client disconnects before a complete response body is written,
+                    // but this is how SSE connections are typically closed.
+                }
+                finally
+                {
+                    _sessions.TryRemove(sessionId, out _);
+                }
+            });
+
+            routeGroup.MapPost("/message", async context =>
+            {
+                if (!context.Request.Query.TryGetValue("sessionId", out var sessionId))
+                {
+                    await Results.BadRequest("Missing sessionId query parameter.").ExecuteAsync(context);
+                    return;
+                }
+
+                if (!_sessions.TryGetValue(sessionId.ToString(), out var transport))
+                {
+                    await Results.BadRequest($"Session ID not found.").ExecuteAsync(context);
+                    return;
+                }
+
+                var message = (IJsonRpcMessage?)await context.Request.ReadFromJsonAsync(McpJsonUtilities.DefaultOptions.GetTypeInfo(typeof(IJsonRpcMessage)), context.RequestAborted);
+                if (message is null)
+                {
+                    await Results.BadRequest("No message in request body.").ExecuteAsync(context);
+                    return;
+                }
+
+                await transport.OnMessageReceivedAsync(message, context.RequestAborted);
+                context.Response.StatusCode = StatusCodes.Status202Accepted;
+                await context.Response.WriteAsync("Accepted");
+            });
+
+            return routeGroup;
+        }
+
+        private static Task RunSession(HttpContext httpContext, IMcpServer session, CancellationToken requestAborted)
+            => session.RunAsync(requestAborted);
+
+        private static string MakeNewSessionId()
+        {
+            // 128 bits
+            Span<byte> buffer = stackalloc byte[16];
+            RandomNumberGenerator.Fill(buffer);
+            return WebEncoders.Base64UrlEncode(buffer);
+        }
+    }
+}

lazy52API/Program.cs

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+using WebSSE;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+builder.Services.AddMcpServer().WithToolsFromAssembly();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+//if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+//app.MapMcpSse();
+app.MapMcp();
+
+app.Run();

lazy52API/Properties/launchSettings.json

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+{
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "http://localhost:5010"
+    },
+    "https": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "https://localhost:7110;http://localhost:5010"
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "Container (.NET SDK)": {
+      "commandName": "SdkContainer",
+      "launchBrowser": true,
+      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}/swagger",
+      "environmentVariables": {
+        "ASPNETCORE_HTTPS_PORTS": "8081",
+        "ASPNETCORE_HTTP_PORTS": "8080"
+      },
+      "publishAllPorts": true,
+      "useSSL": true
+    }
+  },
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:2486",
+      "sslPort": 44340
+    }
+  }
+}

lazy52API/Tool/doubao.cs

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+using Flurl;
+using Flurl.Http;
+using ModelContextProtocol.Server;
+using System.ComponentModel;
+
+namespace lazy52API.Tool
+{
+    [McpServerToolType]
+    public static class Painting
+    {
+        /// <summary>
+        /// 调用豆包绘图接口
+        /// </summary>
+        /// <returns></returns>
+        [McpServerTool(Name = "DouBaoPainting"), Description("调用豆包绘图接口;输出image_url数组(一般是四个)")]
+        public static string DouBao(
+            [Description("要生成图片的描述")] string description,
+            [Description("绘画风格")] string type,
+            [Description("绘画比例，可选9:16，2:3，3:4，4:3，1:1，3:2，16:9。不填默认16:9")] string ratio = "16:9"
+            )
+        {
+            Console.WriteLine($"接收到绘图任务：{description}");
+            var Painting = new
+            {
+                description,
+                type,
+                ratio
+            };
+            var filteredPainting = new System.Collections.Generic.Dictionary<string, object>();
+            foreach (var prop in Painting.GetType().GetProperties())
+            {
+                var value = prop.GetValue(Painting);
+                if (value != null)
+                {
+                    filteredPainting[prop.Name] = value;
+                }
+            }
+            var request = new FlurlRequest("https://npi.lazy52.com/api/doubao")
+            .WithTimeout(Timeout.InfiniteTimeSpan);
+            var response = request
+                    .SetQueryParams(filteredPainting).GetAsync().GetAwaiter().GetResult();
+            if (response != null)
+            {
+                var responseString = response.GetStringAsync().GetAwaiter().GetResult();
+                //JToken rootToken = JToken.Parse(responseString);
+                //var resultPath = "$.image_url[*]";
+                //IEnumerable<JToken> resultTokens = rootToken.SelectTokens(resultPath);
+                return responseString;
+            }
+            return "";
+        }
+    }
+}

lazy52API/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

lazy52API/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*",
+  "Kestrel": {
+    "EndPoints": {
+      "Http": {
+        "Url": "http://*:9090" //
+      }
+    }
+  }
+}

lazy52API/lazy52API.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <RuntimeIdentifiers>linux-x64</RuntimeIdentifiers>
+    <ContainerRuntimeIdentifier>linux-x64</ContainerRuntimeIdentifier>
+    <EnableSdkContainerDebugging>True</EnableSdkContainerDebugging>
+    <ContainerBaseImage>mcr.microsoft.com/dotnet/aspnet:8.0</ContainerBaseImage>
+    <UserSecretsId>e1ff1491-e3f4-4af6-822c-2ca2d8aeb211</UserSecretsId>
+  </PropertyGroup>
+
+  <ItemGroup>
+	  <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.21.0" />
+	  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	  <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2" />
+	  <PackageReference Include="ModelContextProtocol" Version="0.1.0-preview.6" />
+	  <PackageReference Include="Flurl" Version="4.0.0" />
+	  <PackageReference Include="Flurl.Http" Version="4.0.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ContainerPort Include="8081" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Include="Properties\PublishProfiles\192.168.2.23_5002.pubxml.user" />
+  </ItemGroup>
+
+</Project>