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+using MassTransitDemo.Contracts; + +namespace MassTransitDemo.Consumer.Consumers; + +/// +/// 发布/订阅模式的消费者1 +/// 用于接收并处理广播消息 +/// +public class PublishSubscribeConsumer1 : IConsumer +{ + private readonly ILogger _logger; + + /// + /// 构造函数 + /// + /// 日志记录器 + public PublishSubscribeConsumer1(ILogger logger) + { + _logger = logger; + } + + /// + /// 消费消息的方法 + /// + /// 消息上下文 + public Task Consume(ConsumeContext 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; + } + } +} diff --git a/MassTransit示例代码/MassTransitDemo.Consumer/Consumers/PublishSubscribeConsumer2.cs b/MassTransit示例代码/MassTransitDemo.Consumer/Consumers/PublishSubscribeConsumer2.cs new file mode 100644 index 0000000..1344c07 --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Consumer/Consumers/PublishSubscribeConsumer2.cs @@ -0,0 +1,51 @@ +using MassTransit; +using MassTransitDemo.Contracts; + +namespace MassTransitDemo.Consumer.Consumers; + +/// +/// 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 +/// +public class PublishSubscribeConsumer2 : IConsumer +{ + private readonly ILogger _logger; + + /// + /// 构造函数 + /// + /// 日志记录器 + public PublishSubscribeConsumer2(ILogger logger) + { + _logger = logger; + } + + /// + /// 消费消息的方法 + /// + /// 消息上下文 + public Task Consume(ConsumeContext 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; + } + } +} diff --git a/MassTransit示例代码/MassTransitDemo.Consumer/Consumers/RequestResponseConsumer.cs b/MassTransit示例代码/MassTransitDemo.Consumer/Consumers/RequestResponseConsumer.cs new file mode 100644 index 0000000..fd43fbf --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Consumer/Consumers/RequestResponseConsumer.cs @@ -0,0 +1,115 @@ +using MassTransit; +using MassTransitDemo.Contracts; + +namespace MassTransitDemo.Consumer.Consumers; + +/// +/// 请求/响应模式的消费者 +/// 用于接收请求消息并返回响应 +/// +public class RequestResponseConsumer : IConsumer +{ + private readonly ILogger _logger; + + /// + /// 构造函数 + /// + /// 日志记录器 + public RequestResponseConsumer(ILogger logger) + { + _logger = logger; + } + + /// + /// 消费请求消息并返回响应 + /// + /// 消息上下文 + public async Task Consume(ConsumeContext 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); + } + } + + /// + /// 根据操作类型处理业务逻辑 + /// + /// 操作类型 + /// 参数 + /// 处理结果 + 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}"); + } + } +} diff --git a/MassTransit示例代码/MassTransitDemo.Consumer/MassTransitDemo.Consumer.csproj b/MassTransit示例代码/MassTransitDemo.Consumer/MassTransitDemo.Consumer.csproj new file mode 100644 index 0000000..1faeb97 --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Consumer/MassTransitDemo.Consumer.csproj @@ -0,0 +1,20 @@ + + + + net10.0 + enable + enable + + + + + + + + + + + + + + diff --git a/MassTransit示例代码/MassTransitDemo.Consumer/Program.cs b/MassTransit示例代码/MassTransitDemo.Consumer/Program.cs new file mode 100644 index 0000000..a571141 --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Consumer/Program.cs @@ -0,0 +1,69 @@ +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(); + x.AddConsumer(); + x.AddConsumer(); + + // 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(context); + }); + + cfg.ReceiveEndpoint("publish-subscribe-queue-2", e => + { + e.ConfigureConsumer(context); + }); + + cfg.ReceiveEndpoint("request-response-queue", e => + { + e.ConfigureConsumer(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(); diff --git a/MassTransit示例代码/MassTransitDemo.Consumer/Properties/launchSettings.json b/MassTransit示例代码/MassTransitDemo.Consumer/Properties/launchSettings.json new file mode 100644 index 0000000..d39d7fe --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Consumer/Properties/launchSettings.json @@ -0,0 +1,15 @@ +{ + "$schema": "https://json.schemastore.org/launchsettings.json", + "profiles": { + "http": { + "commandName": "Project", + "dotnetRunMessages": true, + "launchBrowser": false, + "applicationUrl": "http://localhost:5002", + "environmentVariables": { + "ASPNETCORE_ENVIRONMENT": "Development" + } + } + + } +} diff --git a/MassTransit示例代码/MassTransitDemo.Consumer/appsettings.Development.json b/MassTransit示例代码/MassTransitDemo.Consumer/appsettings.Development.json new file mode 100644 index 0000000..0c208ae --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Consumer/appsettings.Development.json @@ -0,0 +1,8 @@ +{ + "Logging": { + "LogLevel": { + "Default": "Information", + "Microsoft.AspNetCore": "Warning" + } + } +} diff --git a/MassTransit示例代码/MassTransitDemo.Consumer/appsettings.json b/MassTransit示例代码/MassTransitDemo.Consumer/appsettings.json new file mode 100644 index 0000000..ade226e --- /dev/null +++ b/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": "/" + } +} diff --git a/MassTransit示例代码/MassTransitDemo.Contracts/MassTransitDemo.Contracts.csproj b/MassTransit示例代码/MassTransitDemo.Contracts/MassTransitDemo.Contracts.csproj new file mode 100644 index 0000000..b760144 --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Contracts/MassTransitDemo.Contracts.csproj @@ -0,0 +1,9 @@ + + + + net10.0 + enable + enable + + + diff --git a/MassTransit示例代码/MassTransitDemo.Contracts/PublishSubscribeMessage.cs b/MassTransit示例代码/MassTransitDemo.Contracts/PublishSubscribeMessage.cs new file mode 100644 index 0000000..c7e8b11 --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Contracts/PublishSubscribeMessage.cs @@ -0,0 +1,33 @@ +namespace MassTransitDemo.Contracts; + +/// +/// 发布/订阅模式的消息契约 +/// 用于向多个消费者广播消息 +/// +public class PublishSubscribeMessage +{ + /// + /// 消息唯一标识符 + /// + public Guid MessageId { get; set; } + + /// + /// 消息创建时间 + /// + public DateTime CreatedAt { get; set; } + + /// + /// 消息标题 + /// + public string Title { get; set; } = string.Empty; + + /// + /// 消息内容 + /// + public string Content { get; set; } = string.Empty; + + /// + /// 消息优先级 + /// + public int Priority { get; set; } +} diff --git a/MassTransit示例代码/MassTransitDemo.Contracts/RequestMessage.cs b/MassTransit示例代码/MassTransitDemo.Contracts/RequestMessage.cs new file mode 100644 index 0000000..3a07620 --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Contracts/RequestMessage.cs @@ -0,0 +1,28 @@ +namespace MassTransitDemo.Contracts; + +/// +/// 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 +/// +public class RequestMessage +{ + /// + /// 请求唯一标识符 + /// + public Guid RequestId { get; set; } + + /// + /// 请求创建时间 + /// + public DateTime RequestedAt { get; set; } + + /// + /// 请求操作类型 + /// + public string Operation { get; set; } = string.Empty; + + /// + /// 请求参数 + /// + public string Parameters { get; set; } = string.Empty; +} diff --git a/MassTransit示例代码/MassTransitDemo.Contracts/ResponseMessage.cs b/MassTransit示例代码/MassTransitDemo.Contracts/ResponseMessage.cs new file mode 100644 index 0000000..0fe6461 --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Contracts/ResponseMessage.cs @@ -0,0 +1,38 @@ +namespace MassTransitDemo.Contracts; + +/// +/// 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 +/// +public class ResponseMessage +{ + /// + /// 响应唯一标识符 + /// + public Guid ResponseId { get; set; } + + /// + /// 原始请求标识符 + /// + public Guid CorrelatedRequestId { get; set; } + + /// + /// 响应创建时间 + /// + public DateTime RespondedAt { get; set; } + + /// + /// 操作是否成功 + /// + public bool Success { get; set; } + + /// + /// 响应数据 + /// + public string Data { get; set; } = string.Empty; + + /// + /// 错误信息（如果有） + /// + public string? ErrorMessage { get; set; } +} diff --git a/MassTransit示例代码/MassTransitDemo.Publisher/Controllers/MessageController.cs b/MassTransit示例代码/MassTransitDemo.Publisher/Controllers/MessageController.cs new file mode 100644 index 0000000..f32a711 --- /dev/null +++ b/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; + +/// +/// 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 +/// +[ApiController] +[Route("api/[controller]")] +public class MessageController : ControllerBase +{ + private readonly IPublishEndpoint _publishEndpoint; + private readonly IRequestClient _requestClient; + private readonly ILogger _logger; + + /// + /// 构造函数 + /// + /// 发布端点，用于发布/订阅模式 + /// 请求客户端，用于请求/响应模式 + /// 日志记录器 + public MessageController( + IPublishEndpoint publishEndpoint, + IRequestClient requestClient, + ILogger logger) + { + _publishEndpoint = publishEndpoint; + _requestClient = requestClient; + _logger = logger; + } + + /// + /// 发布/订阅模式：发布一条广播消息 + /// + /// 消息发布请求 + /// 操作结果 + [HttpPost("publish")] + public async Task 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 + }); + } + } + + /// + /// 请求/响应模式：发送请求并等待响应 + /// + /// 请求内容 + /// 响应结果 + [HttpPost("request")] + public async Task 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(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 + }); + } + } +} + +/// +/// 发布消息请求模型 +/// +public class PublishMessageRequest +{ + /// + /// 消息标题 + /// + public string Title { get; set; } = string.Empty; + + /// + /// 消息内容 + /// + public string Content { get; set; } = string.Empty; + + /// + /// 消息优先级（默认：1） + /// + public int Priority { get; set; } = 1; +} + +/// +/// 发布消息响应模型 +/// +public class PublishMessageResponse +{ + /// + /// 操作是否成功 + /// + public bool Success { get; set; } + + /// + /// 消息唯一标识符 + /// + public Guid MessageId { get; set; } + + /// + /// 响应消息 + /// + public string Message { get; set; } = string.Empty; +} + +/// +/// 发送请求模型 +/// +public class SendRequestRequest +{ + /// + /// 操作类型 + /// + public string Operation { get; set; } = string.Empty; + + /// + /// 请求参数（JSON格式字符串） + /// + public string Parameters { get; set; } = string.Empty; +} + +/// +/// 请求响应结果模型 +/// +public class RequestResponseResult +{ + /// + /// 操作是否成功 + /// + public bool Success { get; set; } + + /// + /// 请求唯一标识符 + /// + public Guid RequestId { get; set; } + + /// + /// 响应消息 + /// + public ResponseMessage? Response { get; set; } +} + +/// +/// 错误响应模型 +/// +public class ErrorResponse +{ + /// + /// 操作是否成功 + /// + public bool Success { get; set; } + + /// + /// 错误信息 + /// + public string Error { get; set; } = string.Empty; +} diff --git a/MassTransit示例代码/MassTransitDemo.Publisher/MassTransitDemo.Publisher.csproj b/MassTransit示例代码/MassTransitDemo.Publisher/MassTransitDemo.Publisher.csproj new file mode 100644 index 0000000..1faeb97 --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Publisher/MassTransitDemo.Publisher.csproj @@ -0,0 +1,20 @@ + + + + net10.0 + enable + enable + + + + + + + + + + + + + + diff --git a/MassTransit示例代码/MassTransitDemo.Publisher/Program.cs b/MassTransit示例代码/MassTransitDemo.Publisher/Program.cs new file mode 100644 index 0000000..62d7799 --- /dev/null +++ b/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(); diff --git a/MassTransit示例代码/MassTransitDemo.Publisher/Properties/launchSettings.json b/MassTransit示例代码/MassTransitDemo.Publisher/Properties/launchSettings.json new file mode 100644 index 0000000..dfa0af3 --- /dev/null +++ b/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" + } + } + } +} diff --git a/MassTransit示例代码/MassTransitDemo.Publisher/appsettings.Development.json b/MassTransit示例代码/MassTransitDemo.Publisher/appsettings.Development.json new file mode 100644 index 0000000..0c208ae --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.Publisher/appsettings.Development.json @@ -0,0 +1,8 @@ +{ + "Logging": { + "LogLevel": { + "Default": "Information", + "Microsoft.AspNetCore": "Warning" + } + } +} diff --git a/MassTransit示例代码/MassTransitDemo.Publisher/appsettings.json b/MassTransit示例代码/MassTransitDemo.Publisher/appsettings.json new file mode 100644 index 0000000..ade226e --- /dev/null +++ b/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": "/" + } +} diff --git a/MassTransit示例代码/MassTransitDemo.slnx b/MassTransit示例代码/MassTransitDemo.slnx new file mode 100644 index 0000000..f13523b --- /dev/null +++ b/MassTransit示例代码/MassTransitDemo.slnx @@ -0,0 +1,5 @@ + + + + + diff --git a/MassTransit示例代码/测试说明.md b/MassTransit示例代码/测试说明.md new file mode 100644 index 0000000..1557d93 --- /dev/null +++ b/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:/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:/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