217 lines
7.0 KiB
JavaScript
217 lines
7.0 KiB
JavaScript
/**
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* 优惠券数据迁移脚本 - Node.js
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* Feature: database-migration, Property 2: 数据记录数一致性
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* Feature: database-migration, Property 7: 数据迁移往返一致性
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* Validates: Requirements 5.4
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*
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* 源表: MySQL coupon (19 条记录)
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* 目标表: SQL Server coupons
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*/
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const mysql = require('mysql2/promise');
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const sql = require('mssql');
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// MySQL 配置
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const mysqlConfig = {
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host: '192.168.195.16',
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port: 1887,
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user: 'root',
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password: 'Dbt@com@123',
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database: 'youdas',
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charset: 'utf8mb4'
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};
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// SQL Server 配置
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const sqlServerConfig = {
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server: '192.168.195.15',
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port: 1433,
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user: 'sa',
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password: 'Dbt@com@123',
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database: 'honey_box',
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options: {
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encrypt: false,
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trustServerCertificate: true
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}
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};
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// Unix时间戳转换为 SQL Server DATETIME2 格式
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function unixToDatetime(timestamp) {
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if (!timestamp || timestamp === 0) {
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return null;
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}
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const date = new Date(timestamp * 1000);
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return date.toISOString().slice(0, 23).replace('T', ' ');
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}
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// 转义SQL字符串
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function escapeString(str) {
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if (str === null || str === undefined) return 'NULL';
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return "N'" + String(str).replace(/'/g, "''") + "'";
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}
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// 格式化日期时间
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function formatDatetime(dt) {
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if (!dt) return 'NULL';
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return "'" + dt + "'";
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}
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// 获取已迁移的优惠券ID列表
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async function getMigratedIds(pool) {
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const result = await pool.request().query('SELECT id FROM coupons');
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return new Set(result.recordset.map(r => r.id));
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}
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// 批量插入优惠券数据
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async function insertCouponsBatch(pool, coupons) {
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if (coupons.length === 0) return 0;
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let insertedCount = 0;
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// 构建批量插入SQL
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let sqlBatch = 'SET IDENTITY_INSERT coupons ON;\n';
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for (const coupon of coupons) {
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const createdAt = unixToDatetime(coupon.addtime) || new Date().toISOString().slice(0, 23).replace('T', ' ');
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sqlBatch += `
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INSERT INTO coupons (
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id, type, title, sort, price, man_price, effective_day, status, ttype, created_at
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) VALUES (
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${coupon.id},
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${coupon.type || 0},
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${escapeString(coupon.title)},
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${coupon.sort || 1},
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${parseFloat(coupon.price) || 0},
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${parseFloat(coupon.man_price) || 0},
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${coupon.effective_day || 0},
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${coupon.status || 0},
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${coupon.ttype || 0},
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${formatDatetime(createdAt)}
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);
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`;
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}
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sqlBatch += 'SET IDENTITY_INSERT coupons OFF;';
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try {
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await pool.request().batch(sqlBatch);
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insertedCount = coupons.length;
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} catch (err) {
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console.error('批量插入失败:', err.message);
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// 如果批量失败，尝试逐条插入
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for (const coupon of coupons) {
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try {
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const createdAt = unixToDatetime(coupon.addtime) || new Date().toISOString().slice(0, 23).replace('T', ' ');
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const singleSql = `
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SET IDENTITY_INSERT coupons ON;
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INSERT INTO coupons (
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id, type, title, sort, price, man_price, effective_day, status, ttype, created_at
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) VALUES (
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${coupon.id},
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${coupon.type || 0},
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${escapeString(coupon.title)},
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${coupon.sort || 1},
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${parseFloat(coupon.price) || 0},
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${parseFloat(coupon.man_price) || 0},
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${coupon.effective_day || 0},
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${coupon.status || 0},
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${coupon.ttype || 0},
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${formatDatetime(createdAt)}
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);
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SET IDENTITY_INSERT coupons OFF;`;
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await pool.request().batch(singleSql);
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insertedCount++;
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} catch (singleErr) {
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console.error(`插入优惠券 ${coupon.id} 失败:`, singleErr.message);
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}
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}
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}
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return insertedCount;
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}
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async function main() {
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console.log('========================================');
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console.log('优惠券数据迁移脚本 - Node.js');
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console.log('========================================\n');
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let mysqlConn = null;
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let sqlPool = null;
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try {
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// 连接 MySQL
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console.log('正在连接 MySQL...');
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mysqlConn = await mysql.createConnection(mysqlConfig);
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console.log('MySQL 连接成功\n');
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// 连接 SQL Server
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console.log('正在连接 SQL Server...');
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sqlPool = await sql.connect(sqlServerConfig);
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console.log('SQL Server 连接成功\n');
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// 获取已迁移的ID
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console.log('正在获取已迁移的优惠券ID...');
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const migratedIds = await getMigratedIds(sqlPool);
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console.log(`已迁移优惠券数: ${migratedIds.size}\n`);
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// 从 MySQL 获取所有优惠券数据
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console.log('正在从 MySQL 读取优惠券数据...');
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const [rows] = await mysqlConn.execute(`
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SELECT id, type, title, sort, price, man_price, effective_day, addtime, status, ttype
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FROM coupon
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ORDER BY id
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`);
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console.log(`MySQL 优惠券总数: ${rows.length}\n`);
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// 过滤出未迁移的优惠券
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const couponsToMigrate = rows.filter(coupon => !migratedIds.has(coupon.id));
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console.log(`待迁移优惠券数: ${couponsToMigrate.length}\n`);
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if (couponsToMigrate.length === 0) {
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console.log('所有优惠券数据已迁移完成！');
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} else {
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// 批量迁移（每批50条）
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const batchSize = 50;
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let totalInserted = 0;
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for (let i = 0; i < couponsToMigrate.length; i += batchSize) {
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const batch = couponsToMigrate.slice(i, i + batchSize);
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const inserted = await insertCouponsBatch(sqlPool, batch);
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totalInserted += inserted;
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console.log(`进度: ${Math.min(i + batchSize, couponsToMigrate.length)}/${couponsToMigrate.length} (本批插入: ${inserted})`);
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}
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console.log(`\n迁移完成！共插入 ${totalInserted} 条记录`);
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}
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// 验证迁移结果
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console.log('\n========================================');
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console.log('迁移结果验证');
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console.log('========================================');
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const [mysqlCount] = await mysqlConn.execute('SELECT COUNT(*) as count FROM coupon');
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const sqlResult = await sqlPool.request().query('SELECT COUNT(*) as count FROM coupons');
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console.log(`MySQL coupon 表记录数: ${mysqlCount[0].count}`);
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console.log(`SQL Server coupons 表记录数: ${sqlResult.recordset[0].count}`);
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if (mysqlCount[0].count === sqlResult.recordset[0].count) {
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console.log('\n✅ 数据迁移完成，记录数一致！');
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} else {
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console.log(`\n⚠️ 记录数不一致，差异: ${mysqlCount[0].count - sqlResult.recordset[0].count}`);
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}
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} catch (err) {
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console.error('迁移过程中发生错误:', err);
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process.exit(1);
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} finally {
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// 关闭连接
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if (mysqlConn) await mysqlConn.end();
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if (sqlPool) await sqlPool.close();
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}
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}
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main();
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