[JAVA] When introducing JOOQ to Spring boot, a story that was dealt with because an error occurred around Liquibase


I'm studying Spring boot.


I wanted to write SQL method-based while studying Spring boot

Although I had a simple DB access with Spring default JPA, When I joined the table, I felt like I wasn't good at it. .. .. Recalling that I used to write method-based SELECT statements at work in the past I searched for a similar library.

Is there a query builder type ORM called ** JOOQ **? I noticed that, so I introduced it.

Introduction method

I will omit it. While using Postgres, I didn't have much trouble with the automatic generation of table-related source code for the tables in the target database.

An error has occurred!

There seems to be no compilation error, so when I tried to start the WEB application, the following error occurred.

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 jp.ken.PasswordmanagerApplication.main(PasswordmanagerApplication.java:10) ~[main/: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

What is this? .. .. What is Liquibase? : Rolling_eyes:

With the wisdom of our predecessors, https://qiita.com/opengl-8080/items/37beac5e210f5363af4b

Roughly, it looks like a DB management tool. It seems convenient, but I don't need it now. So, can't we manage to get through?

I tried the following settings while checking

  1. Create a db folder in src / main / resources
  2. Create a file called db.changelog-master.yaml in the db folder
  3. Added to application.properties

Contents of db.changelog-master.yaml


  - changeSet:
       author: authorName
       id: changelog-1.0

Even if I emptied the file or left "databaseChangeLog:", an error occurred, so I searched for the minimum required and found it as above.

application.properties Addendum



I'll specify the above yaml.

You can find out how to create a file at the following site. https://stackoverflow.com/questions/41990295/java-illegalstateexception-cannot-find-changelog-location-class-path-resourc

Also, the minimum required yaml element is inferred from the following site. https://qiita.com/opengl-8080/items/37beac5e210f5363af4b

The error has been resolved above! Congratulations, congratulations.

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