feat: 集成Flyway数据库迁移工具

- 添加Flyway依赖到pom.xml
- 配置application.yml启用Flyway
- 创建迁移脚本目录db/migration
- 添加V1基线脚本和V2项目字段迁移脚本
- 添加DATABASE_MIGRATION.md使用文档

src/main/resources/application.yml

@@ -50,6 +50,27 @@ spring:
         session-stat-enable: true
         session-stat-max-count: 10
 
+
+# Flyway 数据库迁移配置
+  flyway:
+    enabled: true
+    # 迁移脚本位置
+    locations: classpath:db/migration
+    # 版本表名
+    table: flyway_schema_history
+    # 基线版本号（用于已有数据库）
+    baseline-version: 0
+    # 如果数据库不为空，是否自动执行基线
+    baseline-on-migrate: true
+    # 是否校验迁移脚本
+    validate-on-migrate: true
+    # 编码
+    encoding: UTF-8
+    # 是否允许乱序执行
+    out-of-order: false
+    # 是否清理数据库（生产环境务必设为false）
+    clean-disabled: true
+
 # mybatis
 mybatis-plus:
   mapper-locations: classpath:org/springblade/**/mapper/*Mapper.xml

src/main/resources/db/migration/V1__baseline.sql

@@ -0,0 +1,12 @@
+-- =====================================================
+-- Flyway 基线脚本
+-- 版本: V1
+-- 描述: 记录当前数据库结构基线，不执行任何操作
+-- 日期: 2024-12-29
+-- =====================================================
+
+-- 此脚本作为基线版本，用于标记已有数据库的初始状态
+-- 由于 baseline-on-migrate: true，Flyway 会自动将此版本标记为已执行
+-- 后续的迁移脚本从 V2 开始
+
+SELECT 1;

src/main/resources/db/migration/V2__add_project_fields.sql

@@ -0,0 +1,42 @@
+-- =====================================================
+-- 迁移脚本: 添加项目表字段
+-- 版本: V2
+-- 描述: 为 martial_project 表添加 event_type 和报名时间字段
+-- 日期: 2024-12-29
+-- =====================================================
+
+-- 添加 event_type 字段（如果不存在）
+SET @exist := (SELECT COUNT(*) FROM information_schema.columns 
+               WHERE table_schema = DATABASE() 
+               AND table_name = 'martial_project' 
+               AND column_name = 'event_type');
+SET @sql := IF(@exist = 0, 
+    'ALTER TABLE martial_project ADD COLUMN event_type int DEFAULT NULL COMMENT "项目类型: 1-套路 2-散打 3-器械 4-对练" AFTER category',
+    'SELECT 1');
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+-- 添加 registration_start_time 字段（如果不存在）
+SET @exist := (SELECT COUNT(*) FROM information_schema.columns 
+               WHERE table_schema = DATABASE() 
+               AND table_name = 'martial_project' 
+               AND column_name = 'registration_start_time');
+SET @sql := IF(@exist = 0, 
+    'ALTER TABLE martial_project ADD COLUMN registration_start_time datetime DEFAULT NULL COMMENT "报名开始时间" AFTER price',
+    'SELECT 1');
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+-- 添加 registration_end_time 字段（如果不存在）
+SET @exist := (SELECT COUNT(*) FROM information_schema.columns 
+               WHERE table_schema = DATABASE() 
+               AND table_name = 'martial_project' 
+               AND column_name = 'registration_end_time');
+SET @sql := IF(@exist = 0, 
+    'ALTER TABLE martial_project ADD COLUMN registration_end_time datetime DEFAULT NULL COMMENT "报名结束时间" AFTER registration_start_time',
+    'SELECT 1');
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;