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JDBC 的 OpenLink MCP 服务器

一个轻量级的基于Java的MCP(模式上下文协议)服务器,用于由Quakrus所建的JDBC. 此服务器与Virtuoso DBMS和任何其他拥有JDBC驱动程序的DBMS后端兼容.

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□ 特性

• Get Schemas:从连接的数据库获取并列出所有计划名称。
• ** 获取表格**:获取表格信息,用于特定计划或所有计划。
• ** 说明表格**:详细描述表格结构,包括:
• 列名和数据类型
• 可忽略属性
• 主要钥匙和外国钥匙
• 搜索表:根据名称子字符串过滤并取回表格。
• ** 执行存储程序**:一个虚拟特性! 执行存储程序并获取结果。
• ** 执行查询**:
• JSONL结果格式:优化结构化反应。
• 标出表格格式:报告和可视化的理想。

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□ 先决条件

MCP服务器需要Java 21或以上.

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□ 安装

克隆此寄存器 :

□ 环境变量

更新您的 .env , 覆盖这些默认值以匹配您的首选项 :

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□ 配置

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OpenLink MCP Server for JDBC

A lightweight Java-based MCP (Model Context Protocol) server for JDBC built with Quakrus. This server is compatible with Virtuoso DBMS and any other DBMS backend that has a JDBC driver.

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Features

• Get Schemas: Fetch and list all schema names from the connected database.
• Get Tables: Retrieve table information for specific schemas or all schemas.
• Describe Table: Generate a detailed description of table structures, including:
  • Column names and data types
  • Nullable attributes
  • Primary and foreign keys
• Search Tables: Filter and retrieve tables based on name substrings.
• Execute Stored Procedures: A Virtuoso-specific feature! Execute stored procedures and retrieve results.
• Execute Queries:
  • JSONL result format: Optimized for structured responses.
  • Markdown table format: Ideal for reporting and visualization.

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Prerequisites

MCP server requires Java 21 or above.

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Installation

Clone this repository:

git clone https://github.com/OpenLinkSoftware/mcp-jdbc-server.git  
cd mcp-jdbc-server

Environment Variables

Update your .env by overriding these defaults to match your preferences:

jdbc.url=jdbc:virtuoso://localhost:1111
jdbc.user=dba
jdbc.password=dba
jdbc.api_key=xxx

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Configuration

For Claude Desktop users using Virtuoso and its JDBC driver:

Add the following to claude_desktop_config.json:

{
  "mcpServers": {
    "my_database": {
      "command": "java",
      "args": ["-jar", "/path/to/mcp-jdbc-server/MCPServer-1.0.0-runner.jar"],
      "env": {
        "jdbc.url": "jdbc:virtuoso://localhost:1111",
        "jdbc.user": "username",
        "jdbc.password": "password",
        "jdbc.api_key": "sk-xxx"
      }
    }
  }
}

For Claude Desktop users using another JDBC driver or a combination of drivers:

Add the following, edited to suit your local environment, to claude_desktop_config.json:

    "jdbc": {
      "command": "java",
      "args": [
        "-cp",
        "/path/to/mcp-jdbc-server/MCPServer-1.0.0-runner.jar:/path/to/jdbc_driver1.jar:/path/to/jdbc_driverN.jar",
        "io.quarkus.runner.GeneratedMain"
      ],
      "env": {
        "jdbc.url": "jdbc:virtuoso://localhost:1111",
        "jdbc.user": "dba",
        "jdbc.password": "dba"
      }
    }

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Use

Tools Provided

After successful installation, the following tools will be available to MCP client applications.

Overview