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餐厅数据 MCP Server

本服务用于查询职工餐厅就餐人数数据,提供指定日期范围内的早餐和午餐就餐人数统计。

docs: https://modelcontextprotocol.io/quickstart/server

安装

通过 pip 安装

pip install mcp-server-canteen

通过 uv 安装

uv pip install mcp-server-canteen

开发环境安装

git clone https://github.com/wrdan/mcp-server-canteen.git
cd mcp-server-canteen
uv pip install -e .

环境变量配置

在使用服务之前,需要配置以下环境变量:

  • CANTEEN_API_TOKEN: API认证令牌
  • CANTEEN_API_BASE: API基础URL

环境变量获取方式

  1. 联系系统管理员获取 API 认证令牌
  2. API基础URL通常由系统管理员提供

设置环境变量

Windows

set CANTEEN_API_TOKEN=your_token
set CANTEEN_API_BASE=your_base_url

Linux/Mac

export CANTEEN_API_TOKEN=your_token
export CANTEEN_API_BASE=your_base_url

服务运行

使用 uv 运行

uv run mcp-server-canteen

使用 Python 运行

python -m mcp_server_canteen.server

功能说明

服务提供以下功能:

  • get_canteen_data: 查询指定日期范围内的餐厅就餐人数数据
    • 参数:
      • start_date: 开始日期,格式为YYYYMMDD(如20250331)
      • end_date: 结束日期,格式为YYYYMMDD(如20250331)
      • period: 相对时间范围,可选值:
        • today: 今天
        • yesterday: 昨天
        • day_before_yesterday: 前天
        • this_week: 本周
        • last_week: 上周
        • this_month: 本月
        • last_month: 上月
    • 返回: 包含早餐人数、午餐人数和总计人数的文本统计

使用 Claude for Desktop 作为客户端测试

配置

打开并编辑文件: ~/Library/Application\ Support/Claude/claude_desktop_config.json,内容如下:

使用 uvx
"mcpServers": {
  "canteen": {
    "command": "uvx",
    "args": ["mcp-server-canteen"],
    "env": {
        "CANTEEN_API_TOKEN": "CANTEEN_API_TOKEN",
        "CANTEEN_API_BASE": "ANTEEN_API_BASE"
    }
  }
}
使用 uv
"mcpServers": {
  "canteen": {
    "command": "uv",
    "args": ["run", "mcp-server-canteen"],
    "env": {
        "CANTEEN_API_TOKEN": "CANTEEN_API_TOKEN",
        "CANTEEN_API_BASE": "ANTEEN_API_BASE"
    }
  }
}
本地测试
"mcpServers": {
  "canteen": {
    "command": "python",
    "args": ["-m", "mcp-server-canteen.server"],
    "env": {
        "CANTEEN_API_TOKEN": "CANTEEN_API_TOKEN",
        "CANTEEN_API_BASE": "ANTEEN_API_BASE"
    }
  }
}

重启 Claude for Desktop

重启不报错,且有锤子图标显示可用的 MCP Tool,即为成功;否则,查看日志排查

错误处理

常见错误及解决方案

  1. 环境变量未设置

    • 错误信息:缺少必要的环境变量配置
    • 解决方案:确保已正确设置所有必需的环境变量
  2. 日期格式错误

    • 错误信息:日期格式不正确,请使用YYYYMMDD格式
    • 解决方案:检查日期格式是否正确,例如:20240321
  3. API请求失败

    • 错误信息:HTTP请求失败 或 API返回错误
    • 解决方案:
      • 检查网络连接
      • 验证API令牌是否正确
      • 确认API基础URL是否正确
  4. 服务器连接失败

    • 错误信息:无法连接到MCP服务器
    • 解决方案:
      • 确保服务器正在运行
      • 检查端口是否被占用
      • 验证配置文件是否正确

Claude for Desktop 日志

日志文件夹:~/Library/Logs/Claude

来自具体 MCP Server 的日志:mcp-server-canteen.log

MCP 连接通用日志:mcp.log

工作原理

  1. 客户将您的查询发送给 Claude
  2. Claude 分析可用的工具并决定使用哪一个
  3. 客户端通过 MCP 服务器执行所选工具
  4. 结果被发回给 Claude
  5. Claude 制定了自然语言响应
  6. 答案已经展示给你了!

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