Question

我使用Hibernate将Roo生成的Spring MVC应用程序连接到PostgreSQL。我试图将Flyway 1.6作为bean集成到Spring应用程序上下文中。 “某些事情阻止了”迁移的执行，我在Hibernate元数据验证引起的上下文初始化时遇到错误。使用Flyway 1.6 Maven插件（清理，初始化，迁移）执行迁移没有问题。

Flyway 1.5（之前版本）的集成工作正常。

为了使Flyway 1.6集成迁移工作，我该怎么办？我应该提供哪些其他配置？

环境：Ubuntu 11.10，Springsource Tool Suite 2.9.1（Eclipse 3.7.2），OpenJDK 6b23，Tomcat 7.0.23，PostgreSQL 8.4.9 / 9.1，Spring 3.0 / 3.1，Hibernate 3.6.4.Final，PostgreSQL Native驱动程序8.4 JDBC3 / 4 build 702。

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/maven-v4_0_0.xsd">
...
<dependencies>
    ...
    <dependency>
        <groupId>com.googlecode.flyway</groupId>
        <artifactId>flyway-core</artifactId>
        <version>1.6</version>
        <classifier/>
    </dependency>
</dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>com.googlecode.flyway</groupId>
            <artifactId>flyway-maven-plugin</artifactId>
            <version>1.6</version>
            <configuration>
                <driver>org.postgresql.Driver</driver>
                <url>jdbc:postgresql://localhost:5432/library</url>
                <baseDir>db/migration</baseDir>
                <user>library</user>
                <password>library</password>
            </configuration>
        </plugin>
        ...
    </plugins>
</build>
</project>

database.properties：

database.password=library
database.url=jdbc\:postgresql\://localhost\:5432/library
database.username=library
database.driverClassName=org.postgresql.Driver

的persistence.xml：

<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="persistenceUnit" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>
    <properties>
        <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect"/>
        <property name="hibernate.hbm2ddl.auto" value="validate"/>
        <property name="hibernate.ejb.naming_strategy" value="org.hibernate.cfg.ImprovedNamingStrategy"/>
        <property name="hibernate.connection.charSet" value="UTF-8"/>
    </properties>
</persistence-unit>
</persistence>

Spring上下文配置：

<beans xmlns="http://www.springframework.org/schema/beans" ...>
<context:property-placeholder location="classpath*:META-INF/spring/*.properties"/>
<context:spring-configured/>
<context:component-scan base-package="edu.sandbox.library">
    <context:exclude-filter expression=".*_Roo_.*" type="regex"/>
    <context:exclude-filter expression="org.springframework.stereotype.Controller" type="annotation"/>
</context:component-scan>

<bean class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" id="dataSource">
    <property name="driverClassName" value="${database.driverClassName}"/>
    <property name="url" value="${database.url}"/>
    <property name="username" value="${database.username}"/>
    <property name="password" value="${database.password}"/>
    <property name="testOnBorrow" value="true"/>
    <property name="testOnReturn" value="true"/>
    <property name="testWhileIdle" value="true"/>
    <property name="timeBetweenEvictionRunsMillis" value="1800000"/>
    <property name="numTestsPerEvictionRun" value="3"/>
    <property name="minEvictableIdleTimeMillis" value="1800000"/>
    <property name="validationQuery" value="SELECT version();"/>
</bean>
<bean class="org.springframework.orm.jpa.JpaTransactionManager" id="transactionManager">
    <property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
<tx:annotation-driven mode="aspectj" transaction-manager="transactionManager"/>
<bean class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" depends-on="flyway" id="entityManagerFactory">
    <property name="persistenceUnitName" value="persistenceUnit"/>
    <property name="dataSource" ref="dataSource"/>
</bean>
<bean class="com.googlecode.flyway.core.Flyway" id="flyway" init-method="migrate">
    <property name="dataSource" ref="dataSource"/>
</bean>
</beans>

日志：

...
INFO  org.springframework.beans.factory.support.DefaultListableBeanFactory - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@19d03a4e: defining beans [org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,org.springframework.context.config.internalBeanConfigurerAspect,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,dataSource,transactionManager,org.springframework.transaction.config.internalTransactionAspect,entityManagerFactory,flyway]; root of factory hierarchy
DEBUG com.googlecode.flyway.core.dbsupport.DbSupportFactory - Database: PostgreSQL
DEBUG com.googlecode.flyway.core.Flyway - Schema: public
DEBUG com.googlecode.flyway.core.util.ClassPathScanner - Scanning directory: file:/home/developer/projects/sandbox/t7-work/webapps/library/WEB-INF/classes/db/migration/
DEBUG com.googlecode.flyway.core.util.ClassPathScanner - Scanning directory: file:/home/developer/projects/sandbox/t7-work/webapps/library/WEB-INF/classes/db/migration/
INFO  org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean - Building JPA container EntityManagerFactory for persistence unit 'persistenceUnit'
...
INFO  org.hibernate.tool.hbm2ddl.DatabaseMetadata - table not found: book
INFO  org.springframework.beans.factory.support.DefaultListableBeanFactory - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@43a4181c: defining beans [org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,org.springframework.context.config.internalBeanConfigurerAspect,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,dataSource,transactionManager,org.springframework.transaction.config.internalTransactionAspect,entityManagerFactory,flyway]; root of factory hierarchy
ERROR org.springframework.web.context.ContextLoader - Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager' defined in file [/.../applicationContext.xml]: Cannot resolve reference to bean 'entityManagerFactory' while setting bean property 'entityManagerFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in file [/.../applicationContext.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: persistenceUnit] Unable to build EntityManagerFactory
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)
...

Answer 1

您似乎可能遇到与此相同的问题：https://github.com/flyway/flyway/issues/107

请给附带的罐子做一个测试。如果它也适合你，我将在接下来的几天内将其发布为1.6.1。

Answer 2

将/添加到baseDir属性值（as mentioned）似乎是Flyway 1.6的解决方法：

<bean class="com.googlecode.flyway.core.Flyway" id="flyway" init-method="migrate">
    <property name="dataSource" ref="dataSource"/>
    <property name="baseDir" value="db/migration/"/>
</bean>

迁移按预期运行，生成以下日志：

...
DEBUG com.googlecode.flyway.core.dbsupport.DbSupportFactory - Database: PostgreSQL
DEBUG com.googlecode.flyway.core.Flyway - Schema: public
DEBUG com.googlecode.flyway.core.util.ClassPathScanner - Scanning directory: file:/home/developer/projects/sandbox/t7-work/webapps/library/WEB-INF/classes/db/migration/
DEBUG com.googlecode.flyway.core.util.ClassPathScanner - Found resource: db/migration/V1__initial.sql
DEBUG com.googlecode.flyway.core.util.ClassPathScanner - Scanning directory: file:/home/developer/projects/sandbox/t7-work/webapps/library/WEB-INF/classes/db/migration/
DEBUG com.googlecode.flyway.core.util.ClassPathScanner - Scanning directory: file:/home/developer/projects/sandbox/t7-work/webapps/library/WEB-INF/classes/db/migration/
DEBUG com.googlecode.flyway.core.util.ClassPathScanner - Found resource: db/migration/V1__initial.sql
DEBUG com.googlecode.flyway.core.util.ClassPathScanner - Scanning directory: file:/home/developer/projects/sandbox/t7-work/webapps/library/WEB-INF/classes/db/migration/
DEBUG com.googlecode.flyway.core.migration.sql.SqlScript - Found statement at line 17: CREATE TABLE public.schema_version (
...
DEBUG com.googlecode.flyway.core.migration.sql.SqlStatement - Executing SQL: CREATE INDEX schema_version_current_version_index ON public.schema_version (current_version)
INFO  com.googlecode.flyway.core.metadatatable.MetaDataTable - Metadata table created: schema_version (Schema: public)
INFO  com.googlecode.flyway.core.migration.DbMigrator - Current schema version: null
INFO  com.googlecode.flyway.core.migration.DbMigrator - Migrating to version 1
...
INFO  com.googlecode.flyway.core.migration.DbMigrator - Successfully applied 1 migration (execution time 00:00.161s).
...

在Spring应用程序中使用Flyway 1.6无法迁移

2 个答案: