新增MassTransit+RabbitMQ消息队列演示项目

本次提交包含完整的发布/订阅与请求/响应模式示例，新增三大项目（Contracts、Publisher、Consumer），实现消息契约、消费者与发布者API，配置RabbitMQ连接，集成Swagger，提供详细测试说明文档，便于分布式消息通信学习与测试。

MassTransit示例代码/.gitattributes

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MassTransit示例代码/.gitignore

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MassTransit示例代码/MassTransitDemo.Consumer/Consumers/PublishSubscribeConsumer1.cs

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+using MassTransit;
+using MassTransitDemo.Contracts;
+
+namespace MassTransitDemo.Consumer.Consumers;
+
+/// <summary>
+/// 发布/订阅模式的消费者1
+/// 用于接收并处理广播消息
+/// </summary>
+public class PublishSubscribeConsumer1 : IConsumer<PublishSubscribeMessage>
+{
+    private readonly ILogger<PublishSubscribeConsumer1> _logger;
+
+    /// <summary>
+    /// 构造函数
+    /// </summary>
+    /// <param name="logger">日志记录器</param>
+    public PublishSubscribeConsumer1(ILogger<PublishSubscribeConsumer1> logger)
+    {
+        _logger = logger;
+    }
+
+    /// <summary>
+    /// 消费消息的方法
+    /// </summary>
+    /// <param name="context">消息上下文</param>
+    public Task Consume(ConsumeContext<PublishSubscribeMessage> context)
+    {
+        try
+        {
+            _logger.LogInformation("【消费者1】收到发布/订阅消息");
+            _logger.LogInformation("  MessageId: {MessageId}", context.Message.MessageId);
+            _logger.LogInformation("  CreatedAt: {CreatedAt}", context.Message.CreatedAt);
+            _logger.LogInformation("  Title: {Title}", context.Message.Title);
+            _logger.LogInformation("  Content: {Content}", context.Message.Content);
+            _logger.LogInformation("  Priority: {Priority}", context.Message.Priority);
+
+            // 模拟处理逻辑
+            _logger.LogInformation("【消费者1】消息处理完成");
+
+            return Task.CompletedTask;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "【消费者1】消息处理失败");
+            throw;
+        }
+    }
+}

MassTransit示例代码/MassTransitDemo.Consumer/Consumers/PublishSubscribeConsumer2.cs

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+using MassTransit;
+using MassTransitDemo.Contracts;
+
+namespace MassTransitDemo.Consumer.Consumers;
+
+/// <summary>
+/// 发布/订阅模式的消费者2
+/// 用于演示多个消费者接收同一条广播消息
+/// </summary>
+public class PublishSubscribeConsumer2 : IConsumer<PublishSubscribeMessage>
+{
+    private readonly ILogger<PublishSubscribeConsumer2> _logger;
+
+    /// <summary>
+    /// 构造函数
+    /// </summary>
+    /// <param name="logger">日志记录器</param>
+    public PublishSubscribeConsumer2(ILogger<PublishSubscribeConsumer2> logger)
+    {
+        _logger = logger;
+    }
+
+    /// <summary>
+    /// 消费消息的方法
+    /// </summary>
+    /// <param name="context">消息上下文</param>
+    public Task Consume(ConsumeContext<PublishSubscribeMessage> context)
+    {
+        try
+        {
+            _logger.LogInformation("【消费者2】收到发布/订阅消息");
+            _logger.LogInformation("  MessageId: {MessageId}", context.Message.MessageId);
+            _logger.LogInformation("  CreatedAt: {CreatedAt}", context.Message.CreatedAt);
+            _logger.LogInformation("  Title: {Title}", context.Message.Title);
+            _logger.LogInformation("  Content: {Content}", context.Message.Content);
+            _logger.LogInformation("  Priority: {Priority}", context.Message.Priority);
+
+            // 模拟不同的处理逻辑（与消费者1不同的处理方式）
+            var processedContent = $"[消费者2处理] {context.Message.Content.ToUpper()}";
+            _logger.LogInformation("  处理结果: {ProcessedContent}", processedContent);
+            _logger.LogInformation("【消费者2】消息处理完成");
+
+            return Task.CompletedTask;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "【消费者2】消息处理失败");
+            throw;
+        }
+    }
+}

MassTransit示例代码/MassTransitDemo.Consumer/Consumers/RequestResponseConsumer.cs

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+using MassTransit;
+using MassTransitDemo.Contracts;
+
+namespace MassTransitDemo.Consumer.Consumers;
+
+/// <summary>
+/// 请求/响应模式的消费者
+/// 用于接收请求消息并返回响应
+/// </summary>
+public class RequestResponseConsumer : IConsumer<RequestMessage>
+{
+    private readonly ILogger<RequestResponseConsumer> _logger;
+
+    /// <summary>
+    /// 构造函数
+    /// </summary>
+    /// <param name="logger">日志记录器</param>
+    public RequestResponseConsumer(ILogger<RequestResponseConsumer> logger)
+    {
+        _logger = logger;
+    }
+
+    /// <summary>
+    /// 消费请求消息并返回响应
+    /// </summary>
+    /// <param name="context">消息上下文</param>
+    public async Task Consume(ConsumeContext<RequestMessage> context)
+    {
+        try
+        {
+            _logger.LogInformation("【请求/响应消费者】收到请求");
+            _logger.LogInformation("  RequestId: {RequestId}", context.Message.RequestId);
+            _logger.LogInformation("  RequestedAt: {RequestedAt}", context.Message.RequestedAt);
+            _logger.LogInformation("  Operation: {Operation}", context.Message.Operation);
+            _logger.LogInformation("  Parameters: {Parameters}", context.Message.Parameters);
+
+            // 根据操作类型处理请求
+            var (success, data, errorMessage) = ProcessOperation(context.Message.Operation, context.Message.Parameters);
+
+            // 创建响应消息实例
+            var responseMessage = new ResponseMessage
+            {
+                ResponseId = Guid.NewGuid(),
+                CorrelatedRequestId = context.Message.RequestId,
+                RespondedAt = DateTime.UtcNow,
+                Success = success,
+                Data = data,
+                ErrorMessage = errorMessage
+            };
+
+            _logger.LogInformation("【请求/响应消费者】准备返回响应，成功: {Success}", success);
+
+            // 发送响应
+            await context.RespondAsync(responseMessage);
+
+            _logger.LogInformation("【请求/响应消费者】响应已发送");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "【请求/响应消费者】请求处理失败");
+
+            // 发送错误响应
+            var errorResponse = new ResponseMessage
+            {
+                ResponseId = Guid.NewGuid(),
+                CorrelatedRequestId = context.Message.RequestId,
+                RespondedAt = DateTime.UtcNow,
+                Success = false,
+                Data = string.Empty,
+                ErrorMessage = ex.Message
+            };
+
+            await context.RespondAsync(errorResponse);
+        }
+    }
+
+    /// <summary>
+    /// 根据操作类型处理业务逻辑
+    /// </summary>
+    /// <param name="operation">操作类型</param>
+    /// <param name="parameters">参数</param>
+    /// <returns>处理结果</returns>
+    private (bool Success, string Data, string? ErrorMessage) ProcessOperation(string operation, string parameters)
+    {
+        try
+        {
+            switch (operation.ToLower())
+            {
+                case "echo":
+                    return (true, $"Echo: {parameters}", null);
+
+                case "uppercase":
+                    return (true, parameters.ToUpper(), null);
+
+                case "lowercase":
+                    return (true, parameters.ToLower(), null);
+
+                case "reverse":
+                    char[] charArray = parameters.ToCharArray();
+                    Array.Reverse(charArray);
+                    return (true, new string(charArray), null);
+
+                case "length":
+                    return (true, $"Length: {parameters.Length}", null);
+
+                default:
+                    return (false, string.Empty, $"不支持的操作类型: {operation}。支持的操作: echo, uppercase, lowercase, reverse, length");
+            }
+        }
+        catch (Exception ex)
+        {
+            return (false, string.Empty, $"操作执行失败: {ex.Message}");
+        }
+    }
+}

MassTransit示例代码/MassTransitDemo.Consumer/MassTransitDemo.Consumer.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MassTransit" Version="8.5.8" />
+    <PackageReference Include="MassTransit.RabbitMQ" Version="8.5.8" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.5" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="10.1.5" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MassTransitDemo.Contracts\MassTransitDemo.Contracts.csproj" />
+  </ItemGroup>
+
+</Project>

MassTransit示例代码/MassTransitDemo.Consumer/Program.cs

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+using MassTransit;
+using MassTransitDemo.Consumer.Consumers;
+using MassTransitDemo.Contracts;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// 添加控制器服务
+builder.Services.AddControllers();
+
+// 添加API探索器（用于Swagger）
+builder.Services.AddOpenApi();
+ 
+
+// 配置MassTransit和RabbitMQ
+builder.Services.AddMassTransit(x =>
+{
+    // 注册所有消费者
+    x.AddConsumer<PublishSubscribeConsumer1>();
+    x.AddConsumer<PublishSubscribeConsumer2>();
+    x.AddConsumer<RequestResponseConsumer>();
+
+    // 配置RabbitMQ传输
+    x.UsingRabbitMq((context, cfg) =>
+    {
+        // 从配置中读取RabbitMQ连接信息
+        var rabbitMqConfig = builder.Configuration.GetSection("RabbitMQ");
+        var host = rabbitMqConfig["Host"];
+        var port = ushort.Parse(rabbitMqConfig["Port"]!);
+        var username = rabbitMqConfig["Username"];
+        var password = rabbitMqConfig["Password"];
+        var virtualHost = rabbitMqConfig["VirtualHost"];
+
+        // 配置RabbitMQ主机连接
+        cfg.Host(host, port, virtualHost, h =>
+        {
+            h.Username(username);
+            h.Password(password);
+        });
+
+        // 配置消息端点
+        cfg.ReceiveEndpoint("publish-subscribe-queue-1", e =>
+        {
+            e.ConfigureConsumer<PublishSubscribeConsumer1>(context); 
+        });
+
+        cfg.ReceiveEndpoint("publish-subscribe-queue-2", e =>
+        {
+            e.ConfigureConsumer<PublishSubscribeConsumer2>(context);
+        });
+
+        cfg.ReceiveEndpoint("request-response-queue", e =>
+        {
+            e.ConfigureConsumer<RequestResponseConsumer>(context);
+        });
+    });
+});
+
+var app = builder.Build();
+
+app.MapOpenApi();
+app.UseSwaggerUI(options =>
+{
+    options.SwaggerEndpoint("/openapi/v1.json", "API v1");
+});
+
+// 映射控制器路由
+app.MapControllers();
+
+app.Run();

MassTransit示例代码/MassTransitDemo.Consumer/Properties/launchSettings.json

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+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "http://localhost:5002",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+     
+  }
+}

MassTransit示例代码/MassTransitDemo.Consumer/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

MassTransit示例代码/MassTransitDemo.Consumer/appsettings.json

@@ -0,0 +1,17 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning",
+      "MassTransit": "Information"
+    }
+  },
+  "AllowedHosts": "*",
+  "RabbitMQ": {
+    "Host": "192.168.2.7",
+    "Port": 5672,
+    "Username": "rabbit",
+    "Password": "qwe123!@#",
+    "VirtualHost": "/"
+  }
+}

MassTransit示例代码/MassTransitDemo.Contracts/MassTransitDemo.Contracts.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

MassTransit示例代码/MassTransitDemo.Contracts/PublishSubscribeMessage.cs

@@ -0,0 +1,33 @@
+namespace MassTransitDemo.Contracts;
+
+/// <summary>
+/// 发布/订阅模式的消息契约
+/// 用于向多个消费者广播消息
+/// </summary>
+public class PublishSubscribeMessage
+{
+    /// <summary>
+    /// 消息唯一标识符
+    /// </summary>
+    public Guid MessageId { get; set; }
+
+    /// <summary>
+    /// 消息创建时间
+    /// </summary>
+    public DateTime CreatedAt { get; set; }
+
+    /// <summary>
+    /// 消息标题
+    /// </summary>
+    public string Title { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 消息内容
+    /// </summary>
+    public string Content { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 消息优先级
+    /// </summary>
+    public int Priority { get; set; }
+}

MassTransit示例代码/MassTransitDemo.Contracts/RequestMessage.cs

@@ -0,0 +1,28 @@
+namespace MassTransitDemo.Contracts;
+
+/// <summary>
+/// 请求/响应模式的请求消息契约
+/// 用于客户端向服务端发送请求
+/// </summary>
+public class RequestMessage
+{
+    /// <summary>
+    /// 请求唯一标识符
+    /// </summary>
+    public Guid RequestId { get; set; }
+
+    /// <summary>
+    /// 请求创建时间
+    /// </summary>
+    public DateTime RequestedAt { get; set; }
+
+    /// <summary>
+    /// 请求操作类型
+    /// </summary>
+    public string Operation { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 请求参数
+    /// </summary>
+    public string Parameters { get; set; } = string.Empty;
+}

MassTransit示例代码/MassTransitDemo.Contracts/ResponseMessage.cs

@@ -0,0 +1,38 @@
+namespace MassTransitDemo.Contracts;
+
+/// <summary>
+/// 请求/响应模式的响应消息契约
+/// 用于服务端向客户端返回响应
+/// </summary>
+public class ResponseMessage
+{
+    /// <summary>
+    /// 响应唯一标识符
+    /// </summary>
+    public Guid ResponseId { get; set; }
+
+    /// <summary>
+    /// 原始请求标识符
+    /// </summary>
+    public Guid CorrelatedRequestId { get; set; }
+
+    /// <summary>
+    /// 响应创建时间
+    /// </summary>
+    public DateTime RespondedAt { get; set; }
+
+    /// <summary>
+    /// 操作是否成功
+    /// </summary>
+    public bool Success { get; set; }
+
+    /// <summary>
+    /// 响应数据
+    /// </summary>
+    public string Data { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 错误信息（如果有）
+    /// </summary>
+    public string? ErrorMessage { get; set; }
+}

MassTransit示例代码/MassTransitDemo.Publisher/Controllers/MessageController.cs

@@ -0,0 +1,228 @@
+using MassTransit;
+using Microsoft.AspNetCore.Mvc;
+using MassTransitDemo.Contracts;
+
+namespace MassTransitDemo.Publisher.Controllers;
+
+/// <summary>
+/// 消息发布控制器
+/// 提供发布/订阅模式和请求/响应模式的API接口
+/// </summary>
+[ApiController]
+[Route("api/[controller]")]
+public class MessageController : ControllerBase
+{
+    private readonly IPublishEndpoint _publishEndpoint;
+    private readonly IRequestClient<RequestMessage> _requestClient;
+    private readonly ILogger<MessageController> _logger;
+
+    /// <summary>
+    /// 构造函数
+    /// </summary>
+    /// <param name="publishEndpoint">发布端点，用于发布/订阅模式</param>
+    /// <param name="requestClient">请求客户端，用于请求/响应模式</param>
+    /// <param name="logger">日志记录器</param>
+    public MessageController(
+        IPublishEndpoint publishEndpoint,
+        IRequestClient<RequestMessage> requestClient,
+        ILogger<MessageController> logger)
+    {
+        _publishEndpoint = publishEndpoint;
+        _requestClient = requestClient;
+        _logger = logger;
+    }
+
+    /// <summary>
+    /// 发布/订阅模式：发布一条广播消息
+    /// </summary>
+    /// <param name="request">消息发布请求</param>
+    /// <returns>操作结果</returns>
+    [HttpPost("publish")]
+    public async Task<IActionResult> PublishMessage([FromBody] PublishMessageRequest request)
+    {
+        try
+        {
+            _logger.LogInformation("开始发布消息，标题: {Title}", request.Title);
+
+            // 创建发布/订阅消息实例
+            var message = new PublishSubscribeMessage
+            {
+                MessageId = Guid.NewGuid(),
+                CreatedAt = DateTime.UtcNow,
+                Title = request.Title,
+                Content = request.Content,
+                Priority = request.Priority
+            };
+
+            // 使用MassTransit发布消息（广播给所有订阅者）
+            await _publishEndpoint.Publish(message);
+
+            _logger.LogInformation("消息发布成功，MessageId: {MessageId}", message.MessageId);
+
+            return Ok(new PublishMessageResponse
+            {
+                Success = true,
+                MessageId = message.MessageId,
+                Message = "消息发布成功"
+            });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "消息发布失败");
+            return StatusCode(500, new ErrorResponse
+            {
+                Success = false,
+                Error = ex.Message
+            });
+        }
+    }
+
+    /// <summary>
+    /// 请求/响应模式：发送请求并等待响应
+    /// </summary>
+    /// <param name="request">请求内容</param>
+    /// <returns>响应结果</returns>
+    [HttpPost("request")]
+    public async Task<IActionResult> SendRequest([FromBody] SendRequestRequest request)
+    {
+        try
+        {
+            _logger.LogInformation("开始发送请求，操作: {Operation}", request.Operation);
+
+            // 创建请求消息实例
+            var requestMessage = new RequestMessage
+            {
+                RequestId = Guid.NewGuid(),
+                RequestedAt = DateTime.UtcNow,
+                Operation = request.Operation,
+                Parameters = request.Parameters
+            };
+
+            // 使用MassTransit发送请求并等待响应
+            var response = await _requestClient.GetResponse<ResponseMessage>(requestMessage);
+
+            _logger.LogInformation("请求处理完成，RequestId: {RequestId}, 成功: {Success}",
+                requestMessage.RequestId, response.Message.Success);
+
+            return Ok(new RequestResponseResult
+            {
+                Success = true,
+                RequestId = requestMessage.RequestId,
+                Response = response.Message
+            });
+        }
+        catch (RequestTimeoutException)
+        {
+            _logger.LogError("请求超时");
+            return StatusCode(408, new ErrorResponse
+            {
+                Success = false,
+                Error = "请求超时"
+            });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "请求处理失败");
+            return StatusCode(500, new ErrorResponse
+            {
+                Success = false,
+                Error = ex.Message
+            });
+        }
+    }
+}
+
+/// <summary>
+/// 发布消息请求模型
+/// </summary>
+public class PublishMessageRequest
+{
+    /// <summary>
+    /// 消息标题
+    /// </summary>
+    public string Title { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 消息内容
+    /// </summary>
+    public string Content { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 消息优先级（默认：1）
+    /// </summary>
+    public int Priority { get; set; } = 1;
+}
+
+/// <summary>
+/// 发布消息响应模型
+/// </summary>
+public class PublishMessageResponse
+{
+    /// <summary>
+    /// 操作是否成功
+    /// </summary>
+    public bool Success { get; set; }
+
+    /// <summary>
+    /// 消息唯一标识符
+    /// </summary>
+    public Guid MessageId { get; set; }
+
+    /// <summary>
+    /// 响应消息
+    /// </summary>
+    public string Message { get; set; } = string.Empty;
+}
+
+/// <summary>
+/// 发送请求模型
+/// </summary>
+public class SendRequestRequest
+{
+    /// <summary>
+    /// 操作类型
+    /// </summary>
+    public string Operation { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 请求参数（JSON格式字符串）
+    /// </summary>
+    public string Parameters { get; set; } = string.Empty;
+}
+
+/// <summary>
+/// 请求响应结果模型
+/// </summary>
+public class RequestResponseResult
+{
+    /// <summary>
+    /// 操作是否成功
+    /// </summary>
+    public bool Success { get; set; }
+
+    /// <summary>
+    /// 请求唯一标识符
+    /// </summary>
+    public Guid RequestId { get; set; }
+
+    /// <summary>
+    /// 响应消息
+    /// </summary>
+    public ResponseMessage? Response { get; set; }
+}
+
+/// <summary>
+/// 错误响应模型
+/// </summary>
+public class ErrorResponse
+{
+    /// <summary>
+    /// 操作是否成功
+    /// </summary>
+    public bool Success { get; set; }
+
+    /// <summary>
+    /// 错误信息
+    /// </summary>
+    public string Error { get; set; } = string.Empty;
+}

MassTransit示例代码/MassTransitDemo.Publisher/MassTransitDemo.Publisher.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MassTransit" Version="8.5.8" />
+    <PackageReference Include="MassTransit.RabbitMQ" Version="8.5.8" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.5" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="10.1.5" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MassTransitDemo.Contracts\MassTransitDemo.Contracts.csproj" />
+  </ItemGroup>
+
+</Project>

MassTransit示例代码/MassTransitDemo.Publisher/Program.cs

@@ -0,0 +1,50 @@
+using MassTransit;
+using MassTransitDemo.Contracts;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// 添加控制器服务
+builder.Services.AddControllers();
+
+// 添加API探索器（用于Swagger）
+builder.Services.AddOpenApi();
+ 
+
+// 配置MassTransit和RabbitMQ
+builder.Services.AddMassTransit(x =>
+{
+    // 配置RabbitMQ传输
+    x.UsingRabbitMq((context, cfg) =>
+    {
+        // 从配置中读取RabbitMQ连接信息
+        var rabbitMqConfig = builder.Configuration.GetSection("RabbitMQ");
+        var host = rabbitMqConfig["Host"];
+        var port = ushort.Parse(rabbitMqConfig["Port"]!);
+        var username = rabbitMqConfig["Username"];
+        var password = rabbitMqConfig["Password"];
+        var virtualHost = rabbitMqConfig["VirtualHost"];
+
+        // 配置RabbitMQ主机连接
+        cfg.Host(host, port, virtualHost, h =>
+        {
+            h.Username(username);
+            h.Password(password);
+        });
+
+        // 配置消息端点（发布者不需要配置消费者，只需要配置发送）
+        cfg.ConfigureEndpoints(context);
+    });
+});
+
+var app = builder.Build();
+ 
+app.MapOpenApi();
+app.UseSwaggerUI(options =>
+{
+    options.SwaggerEndpoint("/openapi/v1.json", "API v1");
+});
+
+// 映射控制器路由
+app.MapControllers();
+
+app.Run();

MassTransit示例代码/MassTransitDemo.Publisher/Properties/launchSettings.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "http://localhost:5001",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

MassTransit示例代码/MassTransitDemo.Publisher/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

MassTransit示例代码/MassTransitDemo.Publisher/appsettings.json

@@ -0,0 +1,17 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning",
+      "MassTransit": "Information"
+    }
+  },
+  "AllowedHosts": "*",
+  "RabbitMQ": {
+    "Host": "192.168.2.7",
+    "Port": 5672,
+    "Username": "rabbit",
+    "Password": "qwe123!@#",
+    "VirtualHost": "/"
+  }
+}

MassTransit示例代码/MassTransitDemo.slnx

@@ -0,0 +1,5 @@
+<Solution>
+  <Project Path="MassTransitDemo.Consumer/MassTransitDemo.Consumer.csproj" />
+  <Project Path="MassTransitDemo.Contracts/MassTransitDemo.Contracts.csproj" />
+  <Project Path="MassTransitDemo.Publisher/MassTransitDemo.Publisher.csproj" />
+</Solution>

MassTransit示例代码/测试说明.md

@@ -0,0 +1,179 @@
+# MassTransit Demo 测试说明
+
+## 项目结构
+
+```
+MassTransit.Demo/
+├── MassTransitDemo.Contracts/      # 消息契约项目
+│   ├── PublishSubscribeMessage.cs   # 发布/订阅消息契约
+│   ├── RequestMessage.cs            # 请求消息契约
+│   └── ResponseMessage.cs           # 响应消息契约
+├── MassTransitDemo.Publisher/       # 消息发布者API
+│   ├── Controllers/
+│   │   └── MessageController.cs     # 消息发布控制器
+│   ├── Program.cs                    # 服务配置
+│   └── appsettings.json              # 配置文件
+└── MassTransitDemo.Consumer/        # 消息消费者API
+    ├── Consumers/
+    │   ├── PublishSubscribeConsumer1.cs  # 消费者1
+    │   ├── PublishSubscribeConsumer2.cs  # 消费者2
+    │   └── RequestResponseConsumer.cs    # 请求/响应消费者
+    ├── Program.cs                    # 服务配置
+    └── appsettings.json              # 配置文件
+```
+
+## 前置条件
+
+1. 确保RabbitMQ服务器已启动并运行在：192.168.2.7:5672
+2. 确保使用用户名：rabbit，密码：qwe123!@# 可以正常连接
+3. 安装.NET 10 SDK
+
+## 运行步骤
+
+### 1. 还原依赖
+
+```bash
+dotnet restore
+```
+
+### 2. 构建解决方案
+
+```bash
+dotnet build
+```
+
+### 3. 启动Consumer项目
+
+打开一个终端，进入Consumer项目目录：
+
+```bash
+cd MassTransitDemo.Consumer
+dotnet run
+```
+
+Consumer项目将监听RabbitMQ队列并等待消息。
+
+### 4. 启动Publisher项目
+
+打开另一个终端，进入Publisher项目目录：
+
+```bash
+cd MassTransitDemo.Publisher
+dotnet run
+```
+
+Publisher项目将提供API接口用于发送消息。
+
+## API测试
+
+### 发布/订阅模式测试
+
+使用Postman或curl发送POST请求：
+
+**URL:** `POST /api/message/publish`
+
+**请求体:**
+```json
+{
+  "title": "测试消息",
+  "content": "这是一条发布/订阅模式的测试消息",
+  "priority": 1
+}
+```
+
+**curl示例:**
+```bash
+curl -X POST "https://localhost:<port>/api/message/publish" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "title": "测试消息",
+    "content": "这是一条发布/订阅模式的测试消息",
+    "priority": 1
+  }'
+```
+
+**预期结果:**
+- 响应包含成功状态和MessageId
+- Consumer项目的日志中会看到【消费者1】和【消费者2】都接收到了消息
+
+### 请求/响应模式测试
+
+**URL:** `POST /api/message/request`
+
+**支持的操作类型:**
+- `echo`: 原样返回参数
+- `uppercase`: 将参数转换为大写
+- `lowercase`: 将参数转换为小写
+- `reverse`: 反转参数字符串
+- `length`: 返回参数长度
+
+**请求体示例 (echo):**
+```json
+{
+  "operation": "echo",
+  "parameters": "Hello, MassTransit!"
+}
+```
+
+**请求体示例 (uppercase):**
+```json
+{
+  "operation": "uppercase",
+  "parameters": "Hello, MassTransit!"
+}
+```
+
+**curl示例:**
+```bash
+curl -X POST "https://localhost:<port>/api/message/request" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "operation": "uppercase",
+    "parameters": "Hello, MassTransit!"
+  }'
+```
+
+**预期结果:**
+- 响应包含成功状态、RequestId和处理后的数据
+- Consumer项目的日志中会看到【请求/响应消费者】处理请求的过程
+
+## RabbitMQ配置说明
+
+配置文件位置：`appsettings.json`
+
+```json
+{
+  "RabbitMQ": {
+    "Host": "192.168.2.7",
+    "Port": 5672,
+    "Username": "rabbit",
+    "Password": "qwe123!@#",
+    "VirtualHost": "/"
+  }
+}
+```
+
+如需修改RabbitMQ连接信息，请更新Publisher和Consumer项目的`appsettings.json`文件。
+
+## 消息队列说明
+
+- `publish-subscribe-queue-1`: 消费者1的队列
+- `publish-subscribe-queue-2`: 消费者2的队列
+- `request-response-queue`: 请求/响应队列
+
+## 故障排查
+
+1. **连接RabbitMQ失败**
+   - 检查RabbitMQ服务器是否启动
+   - 检查IP地址、端口、用户名和密码是否正确
+   - 检查网络连接是否正常
+
+2. **消息没有被消费**
+   - 确保Consumer项目正在运行
+   - 检查RabbitMQ管理界面，确认队列存在且有绑定
+   - 查看Consumer项目的日志输出
+
+3. **请求超时**
+   - 确保Consumer项目正在运行
+   - 检查网络延迟
+   - 确认请求队列配置正确