【视频&交流平台】
à Spring Boot视频
http://study.163.com/course/introduction.htm?courseId=1004329008&utm_campaign=commission&utm_source=400000000155061&utm_medium=share
à Spring Cloud视频
http://study.163.com/course/introduction.htm?courseId=1004638001&utm_campaign=commission&utm_source=400000000155061&utm_medium=share
à Spring Boot源码
https://gitee.com/happyangellxq520/spring-boot
à Spring Boot交流平台
http://412887952-qq-com.iteye.com/blog/2321532
说明：
（1）Spring Boot 版本：2.0.0.RELEASE
（2）Flyway版本：5.0.7
前言：
在上一节中spring boot使用了1.5.12.RELEASE，这里我们要看看2.0.0.RELEASE的一个使用情况。大体的思路和上一篇是使用的，这里我们在上一篇文章的基础上进行调整。
一、版本说明
这里的Spring Boot版本使用的是2.0.0.RELEASE，那么对于Flyway的版本是5.0.7，这里从3.2.1到5.0.7版本的跨度还是很大的，至于多做了什么改变，这里就不详细展开说明，有兴趣的可以去了解下Flyway版本的升级情况。
二、准备工作
在上一篇的基础上，我们需要将数据库中的所有表结构全部删掉，为什么要全部删除掉呢？在上面我们说到了Flyway的版本跨度是比较大的，这里Flyway的管理版本的表名称调整为了flyway_schema_history（3.2.1的是schema_version）。
三、测试
到这里就可以运行测试了，顺利的话，会在数据库中看到之前的表和数据，另外就是Flyway管理版本信息的表：flyway_schema_history。
四、存放路径说明
由于我们使用了默认的路径，如果你要修改默认的路径的话，在2.0.0版本之后，使用的是如下的配置了：
spring.flyway.locations=classpath:/db/migration5.1.12的版本的是：
flyway.locations=classpath:/db/migration
五、配置说明
对于2.x的版本，Flyway的配置加上了spring的前缀，如下配置：
# FLYWAY (FlywayProperties)
spring.flyway.baseline-description= #
spring.flyway.baseline-on-migrate= #
spring.flyway.baseline-version=1 # Version to start migration
spring.flyway.check-location=true # Whether to check that migration scripts location exists.
spring.flyway.clean-disabled= #
spring.flyway.clean-on-validation-error= #
spring.flyway.dry-run-output= #
spring.flyway.enabled=true # Whether to enable flyway.
spring.flyway.encoding= #
spring.flyway.error-handlers= #
spring.flyway.group= #
spring.flyway.ignore-future-migrations= #
spring.flyway.ignore-missing-migrations= #
spring.flyway.init-sqls= # SQL statements to execute to initialize a connection immediately after obtaining it.
spring.flyway.installed-by= #
spring.flyway.locations=classpath:db/migration # The locations of migrations scripts.
spring.flyway.mixed= #
spring.flyway.out-of-order= #
spring.flyway.password= # JDBC password to use if you want Flyway to create its own DataSource.
spring.flyway.placeholder-prefix= #
spring.flyway.placeholder-replacement= #
spring.flyway.placeholder-suffix= #
spring.flyway.placeholders.*= #
spring.flyway.repeatable-sql-migration-prefix= #
spring.flyway.schemas= # schemas to update
spring.flyway.skip-default-callbacks= #
spring.flyway.skip-default-resolvers= #
spring.flyway.sql-migration-prefix=V #
spring.flyway.sql-migration-separator= #
spring.flyway.sql-migration-suffix=.sql #
spring.flyway.sql-migration-suffixes= #
spring.flyway.table= #
spring.flyway.target= #
spring.flyway.undo-sql-migration-prefix= #
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= #
Spring Boot 1.x的版本如下配置：
# FLYWAY (FlywayProperties)
flyway.baseline-description= #
flyway.baseline-version=1 # version to start migration
flyway.baseline-on-migrate= #
flyway.check-location=false # Check that migration scripts location exists.
flyway.clean-on-validation-error= #
flyway.enabled=true # Enable flyway.
flyway.encoding= #
flyway.ignore-failed-future-migration= #
flyway.init-sqls= # SQL statements to execute to initialize a connection immediately after obtaining it.
flyway.locations=classpath:db/migration # locations of migrations scripts
flyway.out-of-order= #
flyway.password= # JDBC password if you want Flyway to create its own DataSource
flyway.placeholder-prefix= #
flyway.placeholder-replacement= #
flyway.placeholder-suffix= #
flyway.placeholders.*= #
flyway.schemas= # schemas to update
flyway.sql-migration-prefix=V #
flyway.sql-migration-separator= #
flyway.sql-migration-suffix=.sql #
flyway.table= #
flyway.url= # JDBC url of the database to migrate. If not set, the primary configured data source is used.
flyway.user= # Login user of the database to migrate.
flyway.validate-on-migrate= #
