Pau*_*ulB 8 flyway spring-boot
我正在尝试使用Kotlin Spring Boot,JPA和PostgreSQL配置Flyway。我的gradle依赖项是:
dependencies {
implementation('org.springframework.boot:spring-boot-starter-data-jpa')
implementation('org.springframework.boot:spring-boot-starter-web')
implementation('com.fasterxml.jackson.module:jackson-module-kotlin')
implementation('org.flywaydb:flyway-core')
implementation('com.google.code.gson:gson')
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
implementation("org.jetbrains.kotlin:kotlin-reflect")
runtimeOnly('org.postgresql:postgresql')
testImplementation('org.springframework.boot:spring-boot-starter-test')
}
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我的application.properties文件是:
spring.datasource.driverClassName=org.postgresql.Driver
spring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect
spring.datasource.url=jdbc:postgresql://${JDBC_DATABASE_URL}/jpaTestDatabase
spring.datasource.username=${JDBC_DATABASE_USERNAME}
spring.datasource.password=${JDBC_DATABASE_PASSWORD}
flyway.baseline-on-migrate=true
flyway.locations=classpath:src/main/kotlin/db/migration
spring.jpa.generate-ddl=true
spring.jpa.hibernate.ddl-auto=validate
spring.session.store-type=none
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使用jpa和hibernate创建表和条目的工作符合预期。但是,在空数据库上进行示例迁移将导致:
org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'flywayInitializer' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]:
Invocation of init method failed; nested exception is org.flywaydb.core.api.FlywayException:
Found non-empty schema(s) "public" without schema history table! Use baseline() or set baselineOnMigrate to true to initialize the schema history table.
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我的目录结构是spring initializr生成的默认目录结构,我的迁移在: demo/src/main/kotlin/db/migration
我只有一个迁移,这是在此处找到的示例迁移的kotlinized版本,我对其进行了调整以使其符合以下条件:
class V1__Sample : BaseJavaMigration() {
override fun migrate(context: Context?) {
val statement = context?.connection?.prepareStatement(
"""
CREATE TABLE article (
id bigserial primary key,
name varchar(20) NOT NULL,
desc text NOT NULL
);
"""
)
statement.use { it?.execute() }
}
}
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我在这里想念什么?当数据库完全为空(干净的docker映像)时,为什么Flyway一直抱怨寻找没有模式历史记录表的非空模式“ public”?
Ali*_*ien 14
假设您正在使用spring-boot版本2。
在Spring Boot 2中,前缀是“ spring.flyway”,因此请尝试添加spring如下所示的前缀。
spring.flyway.baseline-on-migrate = true
要么
spring.flyway.baselineOnMigrate = true
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