springcloud中使用flyway做数据迁移时要注意的问题

• pom中引用flyway的core包

<dependency>
            <groupId>org.flywaydb</groupId>
            <artifactId>flyway-core</artifactId>
            <version>5.2.4</version>
        </dependency>

• 建立sql存放目录时要注意命名，如：db.migration，要先建立db目录再建立migration目录，由于在application.yml通常配置的是两级目录

flyway:
    baseline-on-migrate: true
    locations: classpath:/db/migration

• 若是每一个微服务的resource中都有本身的db/migration，默认状况下会报

nested exception is org.flywaydb.core.api.FlywayException: Validate failed: Detected applied migration not resolved locally

这是由于经过flyway_schema_history表对本地sql文件进行连续性验证的结果，关闭验证便可。

flyway:
    baseline-on-migrate: true
    validate-on-migrate: false
    locations: classpath:/db/migration