feat: 兼容 Oracle 11g，数据库连接信息迁移到 .env

- 新增 oracle.js（oracledb Thick 模式，11g 必须），查询 USER_TAB_COLUMNS / USER_COL_COMMENTS / USER_TAB_COMMENTS - 新增 npm run oracle 脚本，依赖 oracledb ^6.4.0 - README 增加 Oracle 前置条件与 macOS Apple 芯片 dmg 安装步骤（绕开 Gatekeeper、清 quarantine） - mysql.js / postgreSQL.js / oracle.js 全部改为从 .env 读取连接信息，依赖 dotenv ^16.4.5 - 新增 .env.example 模板，.env 已加入 .gitignore Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

feat: 兼容 Oracle 11g，数据库连接信息迁移到 .env
- 新增 oracle.js（oracledb Thick 模式，11g 必须），查询 USER_TAB_COLUMNS / USER_COL_COMMENTS / USER_TAB_COMMENTS - 新增 npm run oracle 脚本，依赖 oracledb ^6.4.0 - README 增加 Oracle 前置条件与 macOS Apple 芯片 dmg 安装步骤（绕开 Gatekeeper、清 quarantine） - mysql.js / postgreSQL.js / oracle.js 全部改为从 .env 读取连接信息，依赖 dotenv ^16.4.5 - 新增 .env.example 模板，.env 已加入 .gitignore Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
dc27202b · xiegelin · 0bddf01a · dc27202b · dc27202b · dc27202b
Commit dc27202b authored Apr 29, 2026 by xiegelin
9 changed files
--- a/.env.example
+++ b/.env.example
+# 复制本文件为 .env 并按实际填写。.env 已被 .gitignore，不会提交。
+# ============ MySQL ============
+MYSQL_HOST=localhost
+MYSQL_PORT=3306
+MYSQL_USER=root
+MYSQL_PASSWORD=your_password
+MYSQL_DATABASE=your_database
+# ============ PostgreSQL ============
+PGSQL_HOST=localhost
+PGSQL_PORT=5432
+PGSQL_USER=postgres
+PGSQL_PASSWORD=your_password
+PGSQL_DATABASE=your_database
+# ============ Oracle（11g 必须 Thick 模式 + Instant Client，详见 README）============
+ORACLE_USER=your_user
+ORACLE_PASSWORD=your_password
+# connectString 两种写法：
+#   1) Easy Connect（推荐，service_name）：host:port/service_name
+#   2) TNS 描述符（11g 用 SID 必须这个写法）：
+#      (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.10.10.139)(PORT=1521))(CONNECT_DATA=(SID=orcl)))
+ORACLE_CONNECT_STRING=host:port/service_name
+# 可选：Instant Client 路径。已配 PATH/LD_LIBRARY_PATH/DYLD_LIBRARY_PATH 的话留空即可
+# ORACLE_CLIENT_LIB_DIR=/path/to/instantclient_19_8
--- a/.gitignore
+++ b/.gitignore
 yarn.lock
 node_modules
 *.xml
\ No newline at end of file
+.env
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -4,26 +4,28 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 ## Project Overview
-Node.js CLI utility that generates Draw.io (diagrams.net) XML files from database table schemas or Markdown tables. Supports MySQL, PostgreSQL, and Markdown-to-Draw.io conversion. Queries `information_schema` to extract column metadata, then outputs mxGraph XML importable into Draw.io.
+Node.js CLI utility that generates Draw.io (diagrams.net) XML files from database table schemas or Markdown tables. Supports MySQL, PostgreSQL, Oracle (11g+), and Markdown-to-Draw.io conversion. Queries the database catalog to extract column metadata, then outputs mxGraph XML importable into Draw.io.
 ## Commands
 ```bash
-npm install          # Install dependencies (mysql2, pg)
+npm install          # Install dependencies (mysql2, pg, oracledb)
 npm run dev          # Run MySQL version (interactive CLI)
 npm run mysql        # Same as dev
 npm run pgsql        # Run PostgreSQL version (interactive CLI)
+npm run oracle       # Run Oracle version (interactive CLI), Oracle 11g verified
 npm run md2drawio    # Convert Markdown table file to Draw.io XML
 ```
-Requires Node.js v18+. No test suite or linter is configured.
+Requires Node.js v18+. Oracle 11g additionally requires Oracle Instant Client (oracledb Thick mode) — see README and `oracle.js` header for setup. No test suite or linter is configured.
 ## Architecture
-Three independent entry points, no shared modules:
+Four independent entry points, no shared modules:
 - `mysql.js` — MySQL via `mysql2/promise`, queries `information_schema.COLUMNS` and `information_schema.TABLES`. Generates both table-structure XML (with table comment in label) and sample-data XML.
- `postgreSQL.js` — PostgreSQL via `pg`, joins `information_schema.columns` with `pg_catalog.pg_description` for column comments. Generates table-structure XML only (no table comment in label, no sample-data XML).
+- `postgreSQL.js` — PostgreSQL via `pg`, joins `information_schema.columns` with `pg_catalog.pg_description` for column comments. Generates table-structure XML only (table comment included in label, no sample-data XML).
+- `oracle.js` — Oracle via `oracledb` in Thick mode (required for 11g; Thin mode only supports 12.1+). Queries `USER_TAB_COLUMNS` / `USER_COL_COMMENTS` / `USER_TAB_COMMENTS` (current schema only). Generates table-structure XML only (table comment included in label, no sample-data XML). For 11g SID-style connections, `connectString` must use a TNS descriptor (Easy Connect does not accept `host:port:SID`).
 - `mdToDrawio.js` — Parses a Markdown table file (pipe-delimited) and generates a Draw.io table XML into `sampleDataXml/`.
 ### Core Flow (mysql.js / postgreSQL.js)
@@ -32,22 +34,26 @@ Three independent entry points, no shared modules:
 3. **Database Query**: fetches column names + comments from information_schema
 4. **XML Generation**: `generateXMLWithTableColumns` builds mxGraph XML with swimlane container and per-column cells. Audit fields (created_at, updated_at, deleted_at, etc.) are styled gray (#B3B3B3). MySQL version also calls `generateSampleDataXML` for a horizontal table layout.
-### Key Cross-File Difference
+### Key Cross-File Differences
-MySQL result rows use uppercase keys (`row.COLUMN_NAME`, `row.COLUMN_COMMENT`) while PostgreSQL uses lowercase (`row.column_name`, `row.column_comment`). This matters when adding shared logic or modifying XML generation.
+- MySQL result rows use uppercase keys (`row.COLUMN_NAME`, `row.COLUMN_COMMENT`); PostgreSQL uses lowercase (`row.column_name`, `row.column_comment`); Oracle uses uppercase (`row.COLUMN_NAME`, `row.COLUMN_COMMENT`) because `oracledb` returns identifiers as Oracle stores them.
+- Oracle table-name input is normalized to UPPER_SNAKE_CASE (Oracle's storage default) instead of lower snake_case. The audit-field gray-out list in `oracle.js` uses uppercase column names accordingly.
 ### Output Directories
 - `tableStructureXml/` — swimlane-style table structure diagrams
 - `sampleDataXml/` — horizontal table-layout diagrams for sample data
 ### Database Configuration
-Credentials are hardcoded at the top of each database file. Modify directly in source to point at different databases.
+Credentials live in `.env` (gitignored) at the project root. `mysql.js`, `postgreSQL.js`, and `oracle.js` all call `require('dotenv').config()` and read from `process.env`. Variable groups: `MYSQL_*`, `PGSQL_*`, `ORACLE_*` (plus optional `ORACLE_CLIENT_LIB_DIR` for Instant Client path). See `.env.example` for the canonical list. Each script fails fast with a "请创建 .env" message when its required vars are missing.
 ### Known Constraints
 - `&` in column comments breaks XML output (no escaping)
 - Table names must not contain Chinese characters
 - Fixed geometry: x=340, y=140, width=260 for structure XML; colWidth=120 for sample data XML
 - PostgreSQL version hardcodes schema to `public`
- PostgreSQL version does not generate sample-data XML or include table comments in the label
+- PostgreSQL version does not generate sample-data XML
+- Oracle version uses `USER_*` views (current login user only); switch to `ALL_*` + `OWNER` filter for cross-schema use
+- Oracle 11g requires Thick mode + Instant Client; without it, `oracledb.initOracleClient()` throws `DPI-1047`
+- Oracle SID connections must use a TNS descriptor in `connectString`; only service_name works with Easy Connect
 ## Language
 README and console messages are in Chinese. Code uses English variable/function names.
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 node v18
 ```bash
 npm install
+cp .env.example .env   # 然后按需修改 .env 里的连接信息
 ```
 ### 可用命令
@@ -11,15 +12,69 @@ npm install
 | `npm run dev` | 运行 MySQL 版本，交互式输入表名，生成表结构 XML 和示例数据 XML |
 | `npm run mysql` | 同 `npm run dev` |
 | `npm run pgsql` | 运行 PostgreSQL 版本，交互式输入表名，生成表结构 XML |
+| `npm run oracle` | 运行 Oracle 版本（已验证 11g），交互式输入表名，生成表结构 XML |
 | `npm run md2drawio` | 将 Markdown 表格文件转换为 Draw.io XML |
 ### 使用方法：
-1. 配置数据源：MySQL 见 `mysql.js` 顶部，PostgreSQL 见 `postgreSQL.js` 顶部
+1. 配置数据源：复制 `.env.example` 为 `.env`，填入 MySQL / PostgreSQL / Oracle 的连接信息（只填用得到的那段即可）
 2. 运行对应命令后，输入目标表名，支持多个，按英文逗号或中文逗号拼接
 3. 运行成功后，表结构 XML 输出在 `tableStructureXml/` 目录下，示例数据 XML 输出在 `sampleDataXml/` 目录下
 4. 打开 XML 文件将内容粘贴到 Draw.io 编辑器中
 5. `npm run md2drawio` 需输入 Markdown 文件路径，输出在 `sampleDataXml/` 目录下
+### Oracle 版本前置条件（重要）
+Oracle 11g 必须使用 `oracledb` 的 **Thick 模式**（Thin 模式仅支持 12.1+），运行机器需要先装好 Oracle Instant Client。下面分平台说明。
+> 启动若报 `DPI-1047: Cannot locate a 64-bit Oracle Client library`，即是 Instant Client 没装好或路径没配上。
+#### 通用：下载 Instant Client（Basic 包即可，约 50MB）
+| 平台 | 下载页 |
+| --- | --- |
+| macOS (Apple 芯片，M1/M2/M3/M4/M5 等) | https://www.oracle.com/database/technologies/instant-client/macos-arm64-downloads.html |
+| macOS (Intel) | https://www.oracle.com/database/technologies/instant-client/macos-intel-x86-downloads.html |
+| Linux x86_64 | https://www.oracle.com/database/technologies/instant-client/linux-x86-64-downloads.html |
+| Windows x64 | https://www.oracle.com/database/technologies/instant-client/winx64-64-downloads.html |
+#### macOS（Apple 芯片）安装步骤
+下载下来的是 `.dmg`。**不要双击运行 dmg 里自带的 `install_ic.sh`**，那个脚本会被 macOS Gatekeeper 拦截（弹窗"Apple 无法验证…包含可能危害 Mac 安全或泄漏隐私的恶意软件"）。直接挂载镜像、手动复制即可：
+```bash
+# 1) 挂载 dmg（路径换成你下载的实际版本号）
+hdiutil attach ~/Downloads/instantclient-basic-macos.arm64-23.26.1.0.0.dmg
+# 2) 把库文件复制到 /opt/oracle/instantclient_23_26（目录名自取，建议带版本号）
+sudo mkdir -p /opt/oracle/instantclient_23_26
+sudo cp -R /Volumes/instantclient-basic-macos.arm64-23.26.1.0.0/* /opt/oracle/instantclient_23_26/
+# 3) 清掉 macOS 隔离标记（必做！不清的话 dylib 会被系统拒绝加载）
+sudo xattr -dr com.apple.quarantine /opt/oracle/instantclient_23_26
+# 4) 验证：能列出 libclntsh.dylib 即成功
+ls /opt/oracle/instantclient_23_26/libclntsh.dylib
+# 5) 卸载 dmg
+hdiutil detach /Volumes/instantclient-basic-macos.arm64-23.26.1.0.0
+```
+然后在项目根目录的 `.env` 里设置：
+```
+ORACLE_CLIENT_LIB_DIR=/opt/oracle/instantclient_23_26
+```
+#### macOS（Intel）/ Linux / Windows 安装步骤
+下载的是 zip 包，解压到任意目录后任选一种方式让 `oracledb` 找到它：
+- **方式 A（推荐，零侵入）**：在 `.env` 里设 `ORACLE_CLIENT_LIB_DIR=<解压路径>`
+- **方式 B（系统级生效）**：
+  - macOS Intel：`export DYLD_LIBRARY_PATH=<解压路径>:$DYLD_LIBRARY_PATH`
+  - Linux：`export LD_LIBRARY_PATH=<解压路径>:$LD_LIBRARY_PATH`
+  - Windows：把解压目录加入系统 `PATH`
 ### 注意事项：
 1. 生成的 XML 文件中，不能有 `&` 符号。常见问题是这个符号会出现在字段注释中。
 2. 表名不能包含中文字符。
\ No newline at end of file
+3. Oracle 标识符默认全大写存储，输入 camelCase 会自动转成 `UPPER_SNAKE_CASE`。
\ No newline at end of file
--- a/mysql.js
+++ b/mysql.js
+require('dotenv').config();
 const mysql = require('mysql2/promise');
 const readline = require('readline');
 const fs = require('fs');
@@ -16,18 +17,19 @@ function askQuestion(query) {
 async function main() {
  try {
-    // Get database connection details from user
+    // 从 .env 读取连接信息（缺失时给出明确提示，参考 .env.example）
-    const host = 'localhost';
+    const host = process.env.MYSQL_HOST;
-    const port = '3306';
+    const port = process.env.MYSQL_PORT;
-    const user = 'root';
+    const user = process.env.MYSQL_USER;
-    const password = '12345678';
+    const password = process.env.MYSQL_PASSWORD;
-    const database = 'hospital';
+    const database = process.env.MYSQL_DATABASE;
-    // const host = '10.10.10.132';
+    if (!host || !port || !user || password === undefined || !database) {
-    // const port = '3306';
+      console.error(
-    // const user = 'root';
+        '缺少 MySQL 连接配置，请在项目根目录创建 .env 文件（可参考 .env.example）'
-    // const password = 'fxkc@2024';
+      );
-    // const database = 'data_governance_mining';
+      return;
+    }
    const mode = await askQuestion(
      '请选择模式 — 1: 所有表, 2: 指定表 (默认2): '

--- a/oracle.js
+++ b/oracle.js
+/**
+ * Oracle 数据库表结构 → Draw.io XML（先支持 Oracle 11g）
+ *
+ * ===========================================================================
+ * 前置条件（重要！第一次运行务必先看完）
+ * ---------------------------------------------------------------------------
+ * Oracle 11g 必须使用 oracledb 的 Thick 模式，因此运行机器需要安装
+ * Oracle Instant Client（oracledb 的 Thin 模式仅支持 Oracle 12.1+）。
+ *
+ * 1) 下载 Instant Client（推荐 19c，对 11g 向下兼容）
+ *    macOS (Intel)   https://www.oracle.com/database/technologies/instant-client/macos-intel-x86-downloads.html
+ *    macOS (Apple 芯片) Oracle 未提供原生 ARM 版本，需用 Rosetta 2 跑 Node.js，或选用更老版本
+ *    Linux x86_64    https://www.oracle.com/database/technologies/instant-client/linux-x86-64-downloads.html
+ *    Windows x64     https://www.oracle.com/database/technologies/instant-client/winx64-64-downloads.html
+ *
+ * 2) 解压后任选一种方式让程序找到它
+ *    a. 配系统环境变量（推荐，一劳永逸）
+ *       macOS:   export DYLD_LIBRARY_PATH=/path/to/instantclient_19_8
+ *       Linux:   export LD_LIBRARY_PATH=/path/to/instantclient_19_8
+ *       Windows: 把目录加入系统 PATH
+ *    b. 在代码里显式指定路径：
+ *       把下方 initOracleClient 调用改成
+ *       oracledb.initOracleClient({ libDir: '/path/to/instantclient_19_8' });
+ *
+ * 3) 安装依赖
+ *    npm install
+ *
+ * 如果启动时报 "DPI-1047: Cannot locate a 64-bit Oracle Client library"
+ * 就是 Instant Client 没装好或路径没识别到，按上面 1、2 步重新检查。
+ * ===========================================================================
+ */
+require('dotenv').config();
+const oracledb = require('oracledb');
+const readline = require('readline');
+const fs = require('fs');
+try {
+  // 启用 Thick 模式（Oracle 11g 必须）
+  // 优先用 .env 里的 ORACLE_CLIENT_LIB_DIR；否则依赖系统 PATH/LD_LIBRARY_PATH/DYLD_LIBRARY_PATH
+  const libDir = process.env.ORACLE_CLIENT_LIB_DIR;
+  oracledb.initOracleClient(libDir ? { libDir } : undefined);
+} catch (err) {
+  console.error('Oracle Instant Client 初始化失败：', err.message);
+  console.error('请确认已安装 Oracle Instant Client 并配置好库路径，详见文件顶部说明。');
+  process.exit(1);
+}
+// 让查询结果以对象形式返回（默认是数组）
+oracledb.outFormat = oracledb.OUT_FORMAT_OBJECT;
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+});
+function askQuestion(query) {
+  return new Promise((resolve) => {
+    rl.question(query, resolve);
+  });
+}
+async function main() {
+  let connection;
+  try {
+    // 从 .env 读取连接信息（缺失时给出明确提示，参考 .env.example）
+    const user = process.env.ORACLE_USER;
+    const password = process.env.ORACLE_PASSWORD;
+    const connectString = process.env.ORACLE_CONNECT_STRING;
+    if (!user || password === undefined || !connectString) {
+      console.error(
+        '缺少 Oracle 连接配置，请在项目根目录创建 .env 文件（可参考 .env.example）'
+      );
+      return;
+    }
+    const mode = await askQuestion(
+      '请选择模式 — 1: 所有表, 2: 指定表 (默认2): '
+    );
+    console.log('\nConnecting to database...');
+    connection = await oracledb.getConnection({ user, password, connectString });
+    console.log('Connected to database successfully!\n');
+    let tableNames;
+    if (mode.trim() === '1') {
+      // 当前用户下的所有表（如需跨 schema 改用 ALL_TABLES + OWNER 过滤）
+      const allTablesResult = await connection.execute(
+        `SELECT TABLE_NAME FROM USER_TABLES ORDER BY TABLE_NAME`
+      );
+      tableNames = allTablesResult.rows.map((r) => r.TABLE_NAME);
+      console.log(`共找到 ${tableNames.length} 张表\n`);
+    } else {
+      const input = await askQuestion(
+        'Enter table names (separated by commas): '
+      );
+      if (!input) {
+        console.log('表名不得为空！');
+        return;
+      }
+      tableNames = input
+        .split(/[,，]/)
+        .map((name) => name.trim())
+        .filter((name) => name)
+        .map((name) => {
+          if (/[一-龥]/.test(name)) {
+            console.error(`Table name "${name}" 不能有中文，已跳过.`);
+            return null;
+          }
+          // Oracle 标识符默认全大写：camelCase → UPPER_SNAKE_CASE
+          // 仅在「小写→大写」边界插入下划线，避免破坏已是 UPPER_SNAKE 的输入
+          return name.replace(/([a-z0-9])([A-Z])/g, '$1_$2').toUpperCase();
+        })
+        .filter(Boolean);
+    }
+    // 列名 + 列注释
+    const columnSql = `
+      SELECT
+        c.COLUMN_NAME,
+        cc.COMMENTS AS COLUMN_COMMENT
+      FROM USER_TAB_COLUMNS c
+      LEFT JOIN USER_COL_COMMENTS cc
+        ON c.TABLE_NAME = cc.TABLE_NAME
+        AND c.COLUMN_NAME = cc.COLUMN_NAME
+      WHERE c.TABLE_NAME = :tableName
+      ORDER BY c.COLUMN_ID
+    `;
+    // 表注释
+    const tableCommentSql = `
+      SELECT COMMENTS FROM USER_TAB_COMMENTS WHERE TABLE_NAME = :tableName
+    `;
+    for (const processedTableName of tableNames) {
+      console.log('Processing table:', processedTableName);
+      const result = await connection.execute(columnSql, {
+        tableName: processedTableName,
+      });
+      const rows = result.rows;
+      const tableCommentResult = await connection.execute(tableCommentSql, {
+        tableName: processedTableName,
+      });
+      const tableComment = tableCommentResult.rows[0]?.COMMENTS || '';
+      if (rows.length === 0) {
+        console.error(
+          `***** No results found for table ${processedTableName}. *****`
+        );
+      } else {
+        generateXMLWithTableColumns(processedTableName, rows, tableComment);
+        console.log(
+          `===== XML file generated successfully for ${processedTableName}! =====`
+        );
+      }
+    }
+  } catch (error) {
+    console.error('Error:', error.message);
+  } finally {
+    if (connection) {
+      try {
+        await connection.close();
+        console.log('\nConnection closed.');
+      } catch (closeErr) {
+        console.error('Connection close error:', closeErr.message);
+      }
+    }
+    rl.close();
+  }
+}
+function generateXMLWithTableColumns(tableName, rows, tableComment) {
+  const label = tableComment ? `${tableName} &#10;${tableComment}` : tableName;
+  let xmlContent = `<mxGraphModel>
+    <root>
+        <mxCell id="0"/>
+        <mxCell id="1" parent="0"/>
+        <object label="${label}" id="2">
+            <mxCell style="swimlane;fontStyle=1;childLayout=stackLayout;horizontal=1;startSize=40;horizontalStack=0;resizeParent=1;resizeParentMax=0;resizeLast=0;collapsible=1;marginBottom=0;fillColor=#dae8fc;strokeColor=#6c8ebf;" vertex="1" parent="1">
+                <mxGeometry x="340" y="140" width="260" height="${
+                  30 + rows.length * 30
+                }" as="geometry"/>
+            </mxCell>
+        </object>`;
+  rows.forEach((row, index) => {
+    const cellValue = `${row.COLUMN_NAME}    ${row.COLUMN_COMMENT || ''}`;
+    const cellId = index + 3;
+    // Oracle 列名默认全大写
+    const unimportantColumns = [
+      'CREATED_AT',
+      'CREATE_TIME',
+      'CREATED_CODE',
+      'CREATE_CODE',
+      'UPDATED_AT',
+      'UPDATE_TIME',
+      'UPDATED_CODE',
+      'UPDATE_CODE',
+      'DELETED_AT',
+      'DELETED_CODE',
+      'DELETE_FLAG',
+    ].includes(row.COLUMN_NAME);
+    const style = unimportantColumns
+      ? 'text;strokeColor=default;fillColor=none;align=left;verticalAlign=middle;spacingLeft=4;spacingRight=4;overflow=hidden;points=[[0,0.5],[1,0.5]];portConstraint=eastwest;rotatable=0;fontColor=#B3B3B3;'
+      : 'text;strokeColor=default;fillColor=none;align=left;verticalAlign=middle;spacingLeft=4;spacingRight=4;overflow=hidden;points=[[0,0.5],[1,0.5]];portConstraint=eastwest;rotatable=0;';
+    xmlContent += `
+        <mxCell id="${cellId}" value="${cellValue}" style="${style}" vertex="1" parent="2">
+            <mxGeometry y="${
+              30 + index * 30
+            }" width="260" height="30" as="geometry"/>
+        </mxCell>`;
+  });
+  xmlContent += `
+    </root>
+</mxGraphModel>`;
+  const filePath = `tableStructureXml/${tableName}.xml`;
+  if (fs.existsSync(filePath)) {
+    console.log(`[覆盖] ${filePath} 已存在，已覆盖。`);
+  }
+  fs.writeFileSync(filePath, xmlContent);
+}
+main();
--- a/package-lock.json
+++ b/package-lock.json
+{
+  "name": "drawio-utils",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "drawio-utils",
+      "version": "1.0.0",
+      "dependencies": {
+        "dotenv": "^16.4.5",
+        "mysql2": "^3.6.0",
+        "oracledb": "^6.4.0",
+        "pg": "^8.11.3"
+      }
+    },
+    "node_modules/aws-ssl-profiles": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/aws-ssl-profiles/-/aws-ssl-profiles-1.1.2.tgz",
+      "integrity": "sha512-NZKeq9AfyQvEeNlN0zSYAaWrmBffJh3IELMZfRpJVWgrpEbtEpnjvzqBPf+mxoI287JohRDoa+/nsfqqiZmF6g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 6.0.0"
+      }
+    },
+    "node_modules/denque": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmmirror.com/denque/-/denque-2.1.0.tgz",
+      "integrity": "sha512-HVQE3AAb/pxF8fQAoiqpvg9i3evqug3hoiwakOyZAwJm+6vZehbkYXZ0l4JxS+I3QxM97v5aaRNhj8v5oBhekw==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.10"
+      }
+    },
+    "node_modules/dotenv": {
+      "version": "16.6.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.6.1.tgz",
+      "integrity": "sha512-uBq4egWHTcTt33a72vpSG0z3HnPuIl6NqYcTrKEg2azoEyl2hpW0zqlxysq2pK9HlDIHyHyakeYaYnSAwd8bow==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
+    "node_modules/generate-function": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmmirror.com/generate-function/-/generate-function-2.3.1.tgz",
+      "integrity": "sha512-eeB5GfMNeevm/GRYq20ShmsaGcmI81kIX2K9XQx5miC8KdHaC6Jm0qQ8ZNeGOi7wYB8OsdxKs+Y2oVuTFuVwKQ==",
+      "license": "MIT",
+      "dependencies": {
+        "is-property": "^1.0.2"
+      }
+    },
+    "node_modules/iconv-lite": {
+      "version": "0.6.3",
+      "resolved": "https://registry.npmmirror.com/iconv-lite/-/iconv-lite-0.6.3.tgz",
+      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
+      "license": "MIT",
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/is-property": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/is-property/-/is-property-1.0.2.tgz",
+      "integrity": "sha512-Ks/IoX00TtClbGQr4TWXemAnktAQvYB7HzcCxDGqEZU6oCmb2INHuOoKxbtR+HFkmYWBKv/dOZtGRiAjDhj92g==",
+      "license": "MIT"
+    },
+    "node_modules/long": {
+      "version": "5.3.1",
+      "resolved": "https://registry.npmmirror.com/long/-/long-5.3.1.tgz",
+      "integrity": "sha512-ka87Jz3gcx/I7Hal94xaN2tZEOPoUOEVftkQqZx2EeQRN7LGdfLlI3FvZ+7WDplm+vK2Urx9ULrvSowtdCieng==",
+      "license": "Apache-2.0"
+    },
+    "node_modules/lru-cache": {
+      "version": "7.18.3",
+      "resolved": "https://registry.npmmirror.com/lru-cache/-/lru-cache-7.18.3.tgz",
+      "integrity": "sha512-jumlc0BIUrS3qJGgIkWZsyfAM7NCWiBcCDhnd+3NNM5KbBmLTgHVfWBcg6W+rLUsIpzpERPsvwUP7CckAQSOoA==",
+      "license": "ISC",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/lru.min": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/lru.min/-/lru.min-1.1.2.tgz",
+      "integrity": "sha512-Nv9KddBcQSlQopmBHXSsZVY5xsdlZkdH/Iey0BlcBYggMd4two7cZnKOK9vmy3nY0O5RGH99z1PCeTpPqszUYg==",
+      "license": "MIT",
+      "engines": {
+        "bun": ">=1.0.0",
+        "deno": ">=1.30.0",
+        "node": ">=8.0.0"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wellwelwel"
+      }
+    },
+    "node_modules/mysql2": {
+      "version": "3.14.0",
+      "resolved": "https://registry.npmmirror.com/mysql2/-/mysql2-3.14.0.tgz",
+      "integrity": "sha512-8eMhmG6gt/hRkU1G+8KlGOdQi2w+CgtNoD1ksXZq9gQfkfDsX4LHaBwTe1SY0Imx//t2iZA03DFnyYKPinxSRw==",
+      "license": "MIT",
+      "dependencies": {
+        "aws-ssl-profiles": "^1.1.1",
+        "denque": "^2.1.0",
+        "generate-function": "^2.3.1",
+        "iconv-lite": "^0.6.3",
+        "long": "^5.2.1",
+        "lru.min": "^1.0.0",
+        "named-placeholders": "^1.1.3",
+        "seq-queue": "^0.0.5",
+        "sqlstring": "^2.3.2"
+      },
+      "engines": {
+        "node": ">= 8.0"
+      }
+    },
+    "node_modules/named-placeholders": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmmirror.com/named-placeholders/-/named-placeholders-1.1.3.tgz",
+      "integrity": "sha512-eLoBxg6wE/rZkJPhU/xRX1WTpkFEwDJEN96oxFrTsqBdbT5ec295Q+CoHrL9IT0DipqKhmGcaZmwOt8OON5x1w==",
+      "license": "MIT",
+      "dependencies": {
+        "lru-cache": "^7.14.1"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      }
+    },
+    "node_modules/oracledb": {
+      "version": "6.10.0",
+      "resolved": "https://registry.npmmirror.com/oracledb/-/oracledb-6.10.0.tgz",
+      "integrity": "sha512-kGUumXmrEWbSpBuKJyb9Ip3rXcNgKK6grunI3/cLPzrRvboZ6ZoLi9JQ+z6M/RIG924tY8BLflihL4CKKQAYMA==",
+      "hasInstallScript": true,
+      "license": "(Apache-2.0 OR UPL-1.0)",
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
+    "node_modules/pg": {
+      "version": "8.17.1",
+      "resolved": "https://registry.npmjs.org/pg/-/pg-8.17.1.tgz",
+      "integrity": "sha512-EIR+jXdYNSMOrpRp7g6WgQr7SaZNZfS7IzZIO0oTNEeibq956JxeD15t3Jk3zZH0KH8DmOIx38qJfQenoE8bXQ==",
+      "license": "MIT",
+      "dependencies": {
+        "pg-connection-string": "^2.10.0",
+        "pg-pool": "^3.11.0",
+        "pg-protocol": "^1.11.0",
+        "pg-types": "2.2.0",
+        "pgpass": "1.0.5"
+      },
+      "engines": {
+        "node": ">= 16.0.0"
+      },
+      "optionalDependencies": {
+        "pg-cloudflare": "^1.3.0"
+      },
+      "peerDependencies": {
+        "pg-native": ">=3.0.1"
+      },
+      "peerDependenciesMeta": {
+        "pg-native": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/pg-cloudflare": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/pg-cloudflare/-/pg-cloudflare-1.3.0.tgz",
+      "integrity": "sha512-6lswVVSztmHiRtD6I8hw4qP/nDm1EJbKMRhf3HCYaqud7frGysPv7FYJ5noZQdhQtN2xJnimfMtvQq21pdbzyQ==",
+      "license": "MIT",
+      "optional": true
+    },
+    "node_modules/pg-connection-string": {
+      "version": "2.10.0",
+      "resolved": "https://registry.npmjs.org/pg-connection-string/-/pg-connection-string-2.10.0.tgz",
+      "integrity": "sha512-ur/eoPKzDx2IjPaYyXS6Y8NSblxM7X64deV2ObV57vhjsWiwLvUD6meukAzogiOsu60GO8m/3Cb6FdJsWNjwXg==",
+      "license": "MIT"
+    },
+    "node_modules/pg-int8": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/pg-int8/-/pg-int8-1.0.1.tgz",
+      "integrity": "sha512-WCtabS6t3c8SkpDBUlb1kjOs7l66xsGdKpIPZsg4wR+B3+u9UAum2odSsF9tnvxg80h4ZxLWMy4pRjOsFIqQpw==",
+      "license": "ISC",
+      "engines": {
+        "node": ">=4.0.0"
+      }
+    },
+    "node_modules/pg-pool": {
+      "version": "3.11.0",
+      "resolved": "https://registry.npmjs.org/pg-pool/-/pg-pool-3.11.0.tgz",
+      "integrity": "sha512-MJYfvHwtGp870aeusDh+hg9apvOe2zmpZJpyt+BMtzUWlVqbhFmMK6bOBXLBUPd7iRtIF9fZplDc7KrPN3PN7w==",
+      "license": "MIT",
+      "peerDependencies": {
+        "pg": ">=8.0"
+      }
+    },
+    "node_modules/pg-protocol": {
+      "version": "1.11.0",
+      "resolved": "https://registry.npmjs.org/pg-protocol/-/pg-protocol-1.11.0.tgz",
+      "integrity": "sha512-pfsxk2M9M3BuGgDOfuy37VNRRX3jmKgMjcvAcWqNDpZSf4cUmv8HSOl5ViRQFsfARFn0KuUQTgLxVMbNq5NW3g==",
+      "license": "MIT"
+    },
+    "node_modules/pg-types": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/pg-types/-/pg-types-2.2.0.tgz",
+      "integrity": "sha512-qTAAlrEsl8s4OiEQY69wDvcMIdQN6wdz5ojQiOy6YRMuynxenON0O5oCpJI6lshc6scgAY8qvJ2On/p+CXY0GA==",
+      "license": "MIT",
+      "dependencies": {
+        "pg-int8": "1.0.1",
+        "postgres-array": "~2.0.0",
+        "postgres-bytea": "~1.0.0",
+        "postgres-date": "~1.0.4",
+        "postgres-interval": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/pgpass": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/pgpass/-/pgpass-1.0.5.tgz",
+      "integrity": "sha512-FdW9r/jQZhSeohs1Z3sI1yxFQNFvMcnmfuj4WBMUTxOrAyLMaTcE1aAMBiTlbMNaXvBCQuVi0R7hd8udDSP7ug==",
+      "license": "MIT",
+      "dependencies": {
+        "split2": "^4.1.0"
+      }
+    },
+    "node_modules/postgres-array": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/postgres-array/-/postgres-array-2.0.0.tgz",
+      "integrity": "sha512-VpZrUqU5A69eQyW2c5CA1jtLecCsN2U/bD6VilrFDWq5+5UIEVO7nazS3TEcHf1zuPYO/sqGvUvW62g86RXZuA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/postgres-bytea": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/postgres-bytea/-/postgres-bytea-1.0.1.tgz",
+      "integrity": "sha512-5+5HqXnsZPE65IJZSMkZtURARZelel2oXUEO8rH83VS/hxH5vv1uHquPg5wZs8yMAfdv971IU+kcPUczi7NVBQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/postgres-date": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/postgres-date/-/postgres-date-1.0.7.tgz",
+      "integrity": "sha512-suDmjLVQg78nMK2UZ454hAG+OAW+HQPZ6n++TNDUX+L0+uUlLywnoxJKDou51Zm+zTCjrCl0Nq6J9C5hP9vK/Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/postgres-interval": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/postgres-interval/-/postgres-interval-1.2.0.tgz",
+      "integrity": "sha512-9ZhXKM/rw350N1ovuWHbGxnGh/SNJ4cnxHiM0rxE4VN41wsg8P8zWn9hv/buK00RP4WvlOyr/RBDiptyxVbkZQ==",
+      "license": "MIT",
+      "dependencies": {
+        "xtend": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/safer-buffer": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmmirror.com/safer-buffer/-/safer-buffer-2.1.2.tgz",
+      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
+      "license": "MIT"
+    },
+    "node_modules/seq-queue": {
+      "version": "0.0.5",
+      "resolved": "https://registry.npmmirror.com/seq-queue/-/seq-queue-0.0.5.tgz",
+      "integrity": "sha512-hr3Wtp/GZIc/6DAGPDcV4/9WoZhjrkXsi5B/07QgX8tsdc6ilr7BFM6PM6rbdAX1kFSDYeZGLipIZZKyQP0O5Q=="
+    },
+    "node_modules/split2": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/split2/-/split2-4.2.0.tgz",
+      "integrity": "sha512-UcjcJOWknrNkF6PLX83qcHM6KHgVKNkV62Y8a5uYDVv9ydGQVwAHMKqHdJje1VTWpljG0WYpCDhrCdAOYH4TWg==",
+      "license": "ISC",
+      "engines": {
+        "node": ">= 10.x"
+      }
+    },
+    "node_modules/sqlstring": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmmirror.com/sqlstring/-/sqlstring-2.3.3.tgz",
+      "integrity": "sha512-qC9iz2FlN7DQl3+wjwn3802RTyjCx7sDvfQEXchwa6CWOx07/WVfh91gBmQ9fahw8snwGEWU3xGzOt4tFyHLxg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4"
+      }
+    }
+  }
+}
--- a/package.json
+++ b/package.json
@@ -7,10 +7,13 @@
    "dev": "node mysql.js",
    "mysql": "node mysql.js",
    "pgsql": "node postgreSQL.js",
+    "oracle": "node oracle.js",
    "md2drawio": "node mdToDrawio.js"
  },
  "dependencies": {
+    "dotenv": "^16.4.5",
    "mysql2": "^3.6.0",
+    "oracledb": "^6.4.0",
    "pg": "^8.11.3"
  }
 } 
\ No newline at end of file
--- a/postgreSQL.js
+++ b/postgreSQL.js
+require('dotenv').config();
 const { Client } = require('pg');
 const readline = require('readline');
 const fs = require('fs');
@@ -16,19 +17,19 @@ function askQuestion(query) {
 async function main() {
  try {
-    // PostgreSQL connection configuration
+    // 从 .env 读取连接信息（缺失时给出明确提示，参考 .env.example）
-    const host = '172.16.1.173';
+    const host = process.env.PGSQL_HOST;
-    const port = '5432';
+    const port = process.env.PGSQL_PORT;
-    const user = 'postgres';
+    const user = process.env.PGSQL_USER;
-    const password = '123456';
+    const password = process.env.PGSQL_PASSWORD;
-    const database = 'diting';
+    const database = process.env.PGSQL_DATABASE;
-    // Alternative configuration (commented out)
+    if (!host || !port || !user || password === undefined || !database) {
-    // const host = '10.10.10.132';
+      console.error(
-    // const port = '5432';
+        '缺少 PostgreSQL 连接配置，请在项目根目录创建 .env 文件（可参考 .env.example）'
-    // const user = 'postgres';
+      );
-    // const password = 'your_password';
+      return;
-    // const database = 'your_database';
+    }
    const mode = await askQuestion(
      '请选择模式 — 1: 所有表, 2: 指定表 (默认2): '