背景目前项目是spring boot+mysql+maven，因为需要数据库版本管理，因而集成flyway目标集成flyway对于已存在的数据库结构不影响步骤1.在pom.xml中加入依赖<dependency> <groupId>org.flywaydb</groupId> <artifactId>flyway-core</artifactId> <version>5.2.4</version></dependency>2.在项目中，创建放置sql的文件夹cd src/main/resourcesmkdir db/migration3.导出当前数据库的DDL和数据文件清空数据库导出数据库 mysqldump -uroot -p Mydb >Mydb.sql清空数据库drop database Mydb;create schema Mydb default character set utf8 collate utf8_general_ci;4.将导出文件放置到db/migration中mv Mydb.sql db/migration/V1__init.sql5.编译&&运行项目#编译打包mvn package#运行项目java -jar target/myproject-0.0.1-SNAPSHOT.jar 6.运行结果数据库和未集成前一致，且多一个schema_version表，该表是flyway进行版本管理的主表注意这个方法简单粗暴，用于比数据量不大的情况一些可以配置的flyway参数方法一：在application.properties 或者 application.yml 中配置# FLYWAY (FlywayProperties)spring.flyway.baseline-description=<< Flyway Baseline >> # Description to tag an existing schema with when applying a baseline.spring.flyway.baseline-on-migrate=false # Whether to automatically call baseline when migrating a non-empty schema.spring.flyway.baseline-version=1 # Version to tag an existing schema with when executing baseline.spring.flyway.check-location=true # Whether to check that migration scripts location exists.spring.flyway.clean-disabled=false # Whether to disable cleaning of the database.spring.flyway.clean-on-validation-error=false # Whether to automatically call clean when a validation error occurs.spring.flyway.connect-retries=0 # Maximum number of retries when attempting to connect to the database.spring.flyway.enabled=true # Whether to enable flyway.spring.flyway.encoding=UTF-8 # Encoding of SQL migrations.spring.flyway.group=false # Whether to group all pending migrations together in the same transaction when applying them.spring.flyway.ignore-future-migrations=true # Whether to ignore future migrations when reading the schema history table.spring.flyway.ignore-ignored-migrations=false # Whether to ignore ignored migrations when reading the schema history table.spring.flyway.ignore-missing-migrations=false # Whether to ignore missing migrations when reading the schema history table.spring.flyway.ignore-pending-migrations=false # Whether to ignore pending migrations when reading the schema history table.spring.flyway.init-sqls= # SQL statements to execute to initialize a connection immediately after obtaining it.spring.flyway.installed-by= # Username recorded in the schema history table as having applied the migration.spring.flyway.locations=classpath:db/migration # Locations of migrations scripts. Can contain the special “{vendor}” placeholder to use vendor-specific locations.spring.flyway.mixed=false # Whether to allow mixing transactional and non-transactional statements within the same migration.spring.flyway.out-of-order=false # Whether to allow migrations to be run out of order.spring.flyway.password= # Login password of the database to migrate.spring.flyway.placeholder-prefix=${ # Prefix of placeholders in migration scripts.spring.flyway.placeholder-replacement=true # Perform placeholder replacement in migration scripts.spring.flyway.placeholder-suffix=} # Suffix of placeholders in migration scripts.spring.flyway.placeholders= # Placeholders and their replacements to apply to sql migration scripts.spring.flyway.repeatable-sql-migration-prefix=R # File name prefix for repeatable SQL migrations.spring.flyway.schemas= # Scheme names managed by Flyway (case-sensitive).spring.flyway.skip-default-callbacks=false # Whether to skip default callbacks. If true, only custom callbacks are used.spring.flyway.skip-default-resolvers=false # Whether to skip default resolvers. If true, only custom resolvers are used.spring.flyway.sql-migration-prefix=V # File name prefix for SQL migrations.spring.flyway.sql-migration-separator=__ # File name separator for SQL migrations.spring.flyway.sql-migration-suffixes=.sql # File name suffix for SQL migrations.spring.flyway.table=flyway_schema_history # Name of the schema schema history table that will be used by Flyway.spring.flyway.target= # Target version up to which migrations should be considered.spring.flyway.url= # JDBC url of the database to migrate. If not set, the primary configured data source is used.spring.flyway.user= # Login user of the database to migrate.spring.flyway.validate-on-migrate=true # Whether to automatically call validate when performing a migration.方法二：用环境变量配置略参考资料Execute Flyway Database Migrations on Startupspring boot 开箱集成flywayExisting database setup