重构后端API和配置，新增仪表板数据接口并优化本地开发环境配置
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ylweng
181
backend/scripts/check-table-structure.js
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181
backend/scripts/check-table-structure.js
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#!/usr/bin/env node
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/**
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* 检查数据库表结构脚本
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* 对比设计文档与实际表结构
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*/
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const mysql = require('mysql2/promise');
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const config = require('../config/env');
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async function checkTableStructure() {
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let connection;
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try {
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console.log('🔍 开始检查数据库表结构...');
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const dbConfig = {
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host: config.mysql.host,
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port: config.mysql.port,
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user: config.mysql.user,
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password: config.mysql.password,
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database: config.mysql.database,
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charset: config.mysql.charset || 'utf8mb4',
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timezone: config.mysql.timezone || '+08:00'
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};
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connection = await mysql.createConnection(dbConfig);
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console.log('✅ 数据库连接成功');
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// 检查所有表的详细结构
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const [tables] = await connection.execute(
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`SELECT table_name FROM information_schema.tables
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WHERE table_schema = ? ORDER BY table_name`,
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[dbConfig.database]
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);
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console.log(`\n📊 数据库 ${dbConfig.database} 中共有 ${tables.length} 个表:`);
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for (const table of tables) {
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const tableName = table.TABLE_NAME || table.table_name;
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console.log(`\n🔍 检查表: ${tableName}`);
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// 获取表结构
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const [columns] = await connection.execute(
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`SELECT
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COLUMN_NAME,
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DATA_TYPE,
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IS_NULLABLE,
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COLUMN_DEFAULT,
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COLUMN_KEY,
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EXTRA,
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COLUMN_COMMENT
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FROM information_schema.COLUMNS
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WHERE table_schema = ? AND table_name = ?
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ORDER BY ORDINAL_POSITION`,
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[dbConfig.database, tableName]
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);
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// 获取表记录数
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const [countResult] = await connection.execute(`SELECT COUNT(*) AS count FROM ${tableName}`);
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const recordCount = countResult[0].count;
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console.log(` 📊 记录数: ${recordCount}`);
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console.log(` 📋 字段结构 (${columns.length} 个字段):`);
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columns.forEach(col => {
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const nullable = col.IS_NULLABLE === 'YES' ? 'NULL' : 'NOT NULL';
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const key = col.COLUMN_KEY ? `[${col.COLUMN_KEY}]` : '';
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const extra = col.EXTRA ? `[${col.EXTRA}]` : '';
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const defaultVal = col.COLUMN_DEFAULT !== null ? `DEFAULT: ${col.COLUMN_DEFAULT}` : '';
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const comment = col.COLUMN_COMMENT ? `// ${col.COLUMN_COMMENT}` : '';
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console.log(` - ${col.COLUMN_NAME}: ${col.DATA_TYPE} ${nullable} ${key} ${extra} ${defaultVal} ${comment}`);
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});
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// 获取索引信息
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const [indexes] = await connection.execute(
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`SELECT
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INDEX_NAME,
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COLUMN_NAME,
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NON_UNIQUE,
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INDEX_TYPE
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FROM information_schema.STATISTICS
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WHERE table_schema = ? AND table_name = ?
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ORDER BY INDEX_NAME, SEQ_IN_INDEX`,
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[dbConfig.database, tableName]
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);
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if (indexes.length > 0) {
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console.log(` 🔑 索引信息:`);
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const indexGroups = {};
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indexes.forEach(idx => {
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if (!indexGroups[idx.INDEX_NAME]) {
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indexGroups[idx.INDEX_NAME] = {
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columns: [],
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unique: idx.NON_UNIQUE === 0,
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type: idx.INDEX_TYPE
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};
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}
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indexGroups[idx.INDEX_NAME].columns.push(idx.COLUMN_NAME);
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});
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Object.entries(indexGroups).forEach(([indexName, info]) => {
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const uniqueStr = info.unique ? '[UNIQUE]' : '';
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console.log(` - ${indexName}: (${info.columns.join(', ')}) ${uniqueStr} [${info.type}]`);
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});
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}
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}
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// 检查外键约束
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console.log(`\n🔗 检查外键约束:`);
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const [foreignKeys] = await connection.execute(
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`SELECT
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TABLE_NAME,
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COLUMN_NAME,
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REFERENCED_TABLE_NAME,
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REFERENCED_COLUMN_NAME,
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CONSTRAINT_NAME
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FROM information_schema.KEY_COLUMN_USAGE
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WHERE table_schema = ? AND REFERENCED_TABLE_NAME IS NOT NULL
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ORDER BY TABLE_NAME, COLUMN_NAME`,
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[dbConfig.database]
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);
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if (foreignKeys.length > 0) {
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foreignKeys.forEach(fk => {
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console.log(` - ${fk.TABLE_NAME}.${fk.COLUMN_NAME} -> ${fk.REFERENCED_TABLE_NAME}.${fk.REFERENCED_COLUMN_NAME} [${fk.CONSTRAINT_NAME}]`);
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});
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} else {
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console.log(' ⚠️ 未发现外键约束');
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}
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// 检查表大小
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console.log(`\n💾 检查表存储大小:`);
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const [tableSizes] = await connection.execute(
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`SELECT
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table_name,
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ROUND(((data_length + index_length) / 1024 / 1024), 2) AS 'size_mb',
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table_rows
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FROM information_schema.tables
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WHERE table_schema = ?
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ORDER BY (data_length + index_length) DESC`,
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[dbConfig.database]
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);
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tableSizes.forEach(size => {
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console.log(` - ${size.table_name}: ${size.size_mb} MB (${size.table_rows} 行)`);
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});
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console.log('\n🎉 表结构检查完成！');
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return {
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success: true,
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tableCount: tables.length,
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foreignKeyCount: foreignKeys.length
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};
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} catch (error) {
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console.error('❌ 检查表结构失败:', error.message);
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return {
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success: false,
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error: error.message
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};
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} finally {
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if (connection) {
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await connection.end();
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console.log('🔒 数据库连接已关闭');
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}
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}
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}
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// 如果是直接运行此文件，则执行检查
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if (require.main === module) {
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checkTableStructure()
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.then((result) => {
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process.exit(result.success ? 0 : 1);
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})
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.catch(() => process.exit(1));
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}
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module.exports = { checkTableStructure };
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