LiquiBase 问题，类路径资源 [db/changelog/db.changelog-master.yaml] 无法解析为 URL，因为它不存在

Posted 2023-02-26

【中文标题】LiquiBase 问题，类路径资源 [db/changelog/db.changelog-master.yaml] 无法解析为 URL，因为它不存在

【英文标题】：LiquiBase problem , class path resource [db/changelog/db.changelog-master.yaml] cannot be resolved to URL because it does not exist

【发布时间】：2020-06-26 05:10:23

【问题描述】：

我在将 liquibase 与 springboot 集成时遇到问题。 我在 pom 文件中添加了 liquibase 依赖项，如下所示：

    <dependencies>

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

        <dependency>
            <groupId>org.liquibase</groupId>
            <artifactId>liquibase-core</artifactId>
        </dependency>

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

    </dependencies>

在 src/main/resources 中，我创建了文件夹 db/changelog。 在 db 文件夹中，它位于 liquibase-change.xml 文件，其内容如下：

<databaseChangeLog
        xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
         http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.1.xsd">

    <include file="changelog/01-create-employee-scheme.xml" relativeToChangelogFile="true"/>
    <include file="changelog/02-data-insert-employees.xml" relativeToChangelogFile="true"/>

</databaseChangeLog>

在文件夹更改日志中的文件：

01-create-employee-scheme.xml

<changeSet id="01" author="xy">

    <createTable tableName="employee">
        <column name="id" type="int">
            <constraints nullable="false" primaryKey="true"/>
        </column>
        <column name="firstname" type="varchar(25)">
            <constraints nullable="false"/>
        </column>
        <column name="lastname" type="varchar(25)">
            <constraints nullable="false"/>
        </column>
    </createTable>

</changeSet>

02-data-insert-employees.xml

<insert tableName="employee">
    <column name="id" valueNumeric="1"/>
    <column name="firstname" value="x"/>
    <column name="lastname" value="y"/>
</insert>

在 Spring Boot 的应用程序属性文件中，我进行了以下配置。 应用程序.properties

#Liquibase 
liquibase.change-log=classpath:db/liquibase-changelog.xml
spring.liquibase.enabled=true

#H2 DB 
spring.jpa.hibernate.ddl-auto=none
spring.h2.console.enabled=true
spring.datasource.url=jdbc:h2:mem:employeedb
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=password
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect

当我启动 spring boot 应用程序时抛出的错误如下：

2020-03-14 13:22:54.557 ERROR 5804 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'liquibase' defined in class path resource [org/springframework/boot/autoconfigure/liquibase/LiquibaseAutoConfiguration$LiquibaseConfiguration.class]: Invocation of init method failed; nested exception is liquibase.exception.ChangeLogParseException: Error parsing classpath:/db/changelog/db.changelog-master.yaml
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1108) ~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868) ~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) ~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    at com.github.rshtishi.payroll.employee.EmployeeApplication.main(EmployeeApplication.java:13) ~[classes/:na]
Caused by: liquibase.exception.ChangeLogParseException: Error parsing classpath:/db/changelog/db.changelog-master.yaml
    at liquibase.parser.core.yaml.YamlChangeLogParser.parse(YamlChangeLogParser.java:83) ~[liquibase-core-3.8.7.jar:na]
    at liquibase.Liquibase.getDatabaseChangeLog(Liquibase.java:217) ~[liquibase-core-3.8.7.jar:na]
    at liquibase.Liquibase.update(Liquibase.java:190) ~[liquibase-core-3.8.7.jar:na]
    at liquibase.Liquibase.update(Liquibase.java:179) ~[liquibase-core-3.8.7.jar:na]
    at liquibase.integration.spring.SpringLiquibase.performUpdate(SpringLiquibase.java:366) ~[liquibase-core-3.8.7.jar:na]
    at liquibase.integration.spring.SpringLiquibase.afterPropertiesSet(SpringLiquibase.java:314) ~[liquibase-core-3.8.7.jar:na]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1855) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1792) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    ... 18 common frames omitted
Caused by: java.io.FileNotFoundException: class path resource [db/changelog/db.changelog-master.yaml] cannot be resolved to URL because it does not exist
    at org.springframework.core.io.ClassPathResource.getURL(ClassPathResource.java:195) ~[spring-core-5.2.4.RELEASE.jar:5.2.4.RELEASE]
    at liquibase.integration.spring.SpringLiquibase$SpringResourceOpener.getResourcesAsStream(SpringLiquibase.java:613) ~[liquibase-core-3.8.7.jar:na]
    at liquibase.util.StreamUtil.singleInputStream(StreamUtil.java:186) ~[liquibase-core-3.8.7.jar:na]
    at liquibase.parser.core.yaml.YamlChangeLogParser.parse(YamlChangeLogParser.java:26) ~[liquibase-core-3.8.7.jar:na]
    ... 25 common frames omitted

我不明白为什么当我在 application.properties 文件中指定属性时它正在搜索文件 [db/changelog/db.changelog-master.yaml]：liquibase.change-log=classpath:db/liquibase-changelog.xml。

问候。

【问题讨论】：

我认为应该是spring.liquibase.change-log=...". liquibase.change-log`（不带spring前缀）已被弃用。

Ervin Szilagyi 是对的，而且您的变更日志路径也错误。正如您所写，您将更改日志放入db/changelog 文件夹，那么它应该是spring.liquibase.change-log=classpat:db/changelog/liquibase-change.xml。顺便说一句 db/changelog/db.changelog-master.yam 是默认弹簧值。

谢谢你，但我修正了其他错误。

添加 spring 前缀有效！

【参考方案1】：

尝试使用spring.liquibase.change-log 属性（而不仅仅是liquibase.change-log）。当我遇到同样的问题时，这对我有用。

Jira 跟踪器的问题 CORE-3459 中也提到了此解决方案。

【讨论】：

liquibase.change-log 已弃用。它必须是 spring.liquibase.change-log

【参考方案2】：

我也遇到了同样的问题。用 @SpringBootTest 替换了 Test 类中的 @ContextConfiguration 并且它起作用了。不知道为什么会起作用。

【参考方案3】：

Spring LiquibaseProperties 具有 liquibase 的配置

@ConfigurationProperties(prefix = "spring.liquibase", ignoreUnknownFields = false)  

所以，在 property/yml 文件中应该有 liquibase 的 sprig 前缀

spring:
  liquibase:
    enabled: true
    drop-first: false
    change-log: classpath:db/liquibase-changelog.xml
    default-schema: public

确保你有正确的缩进