与Spring Boot集成的Flyway不会在嵌入式H2数据库上执行迁移脚本

时间：2018-05-07 13:37:20

标签： java spring-boot jpa h2 flyway

我正在尝试使用Flyway在Spring Boot应用程序中对嵌入式H2数据库进行迁移演示。

application.properties 

logging.level.org.org.springframework=DEBUG
server.port=8181
spring.h2.console.enabled=true
spring.h2.console.path=/h2
spring.datasource.url=jdbc:h2:mem:testdb
spring.datasource.username=sa
spring.datasource.password=
spring.datasource.driver-class-name=org.h2.Driver
spring.flyway.baseline-on-migrate=true
spring.jpa.hibernate.ddl-auto=none
db / migration

下的

migration-script（V2__create_shipwreck.sql） 

CREATE TABLE SHIPWRECK(ID INT AUTO_INCREMENT,
    NAME VARCHAR(255),
    DESCRIPTION VARCHAR(2000),
    CONDITION VARCHAR(255),
    DEPTH INT,
    LATITUDE DOUBLE,
    LANGITUDE DOUBLE,
    YEARS_DISCOERED INT);

控制台日志

  

INFO 7284 --- [main] o.f.c.internal.database.DatabaseFactory：   数据库：jdbc：h2：mem：testdb（H2 1.4）

     

INFO 7284 --- [main] o.f.core.internal.command.DbValidate：   成功验证了1次迁移（执行时间00：00.031s）

     

INFO 7284 --- [main] o.f.c.i.s.JdbcTableSchemaHistory：创建架构   历史表：＆＃34; PUBLIC＆＃34;。＆＃34; flyway_schema_history＆＃34;

     

INFO 7284 --- [main] o.f.core.internal.command.DbMigrate：Current   架构的版本＆＃34; PUBLIC＆＃34;：＆lt;＆lt;空架构＆gt;＆gt;

     

INFO 7284 --- [main] o.f.core.internal.command.DbMigrate：Migrating   schema＆＃34; PUBLIC＆＃34;到版本2 - 创建沉船

     

INFO 7284 --- [main] o.f.core.internal.command.DbMigrate：   成功应用了1个迁移到架构＆＃34; PUBLIC＆＃34; （执行时间处理时间   00：00.098s）

     

INFO 7284 --- [main] j.LocalContainerEntityManagerFactoryBean：   为持久性单元构建JPA容器EntityManagerFactory   ＆＃39;默认＆＃39;

     

INFO 7284 --- [main] o.hibernate.jpa.internal.util.LogHelper：   HHH000204：处理PersistenceUnitInfo [name：default ...]

     

main] org.hibernate.Version：HHH000412：Hibernate   核心{5.2.14.Final}

     

main] org.hibernate.cfg.Environment：HHH000206：   找不到hibernate.properties

     

main] o.hibernate.annotations.common.Version:HCANN000001：   Hibernate Commons Annotations {5.0.1.Final}

     

main] org.hibernate.dialect.Dialect：HHH000400：正在使用   方言：org.hibernate.dialect.H2Dialect

     

main] j.LocalContainerEntityManagerFactoryBean：初始化的JPA   用于持久性单元的EntityManagerFactory＆＃39;默认＆＃39;

的pom.xml 

<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.boot</groupId>
    <artifactId>das-boot</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
    <name>das-boot</name>
    <url>http://maven.apache.org</url>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.RELEASE</version>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
        <groupId>org.flywaydb</groupId>
        <artifactId>flyway-core</artifactId>
        <version>5.0.7</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.0.0.RELEASE</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

H2数据库表UI

database tables

启动Spring Boot应用程序后，表格尚未创建，那么问题是什么？

2 个答案:

答案 0 :(得分：2)

根据您的描述（Flyway执行正常，但之后没有观察到架构更改），这听起来像Spring Boot不会持续H2更改。您可以尝试将spring.jpa.hibernate.ddl-auto=none添加到application.properties，以便JPA配置不会覆盖Flyway迁移后的架构更改，具体为this question。

答案 1 :(得分：1)

我遇到了同样的问题，将application.properties更改为 datasource.url到文件，而不是 mem

能够创建带有详细信息的表格 正确： spring.datasource.url=jdbc:h2:file:~/dasboot

application.properties 

logging.level.org.org.springframework=DEBUG
server.port=8080

spring.h2.console.enabled=true
spring.h2.console.path=/h2

spring.datasource.url=jdbc:h2:file:~/dasboot
spring.datasource.username=sa
spring.datasource.password=
spring.datasource.driver-class-name=org.h2.Driver

spring.flyway.baseline-on-migrate=true
spring.jpa.hibernate.ddl-auto=none

POM.xml 

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.boot</groupId>
    <artifactId>das-boot</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.3.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

    <name>das-boot</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
        </dependency>

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

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>


    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

shipwreck table was created and persisted in h2 db

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