SpringBoot整合liquibase_make sure a liquibase changelog is present at the -优快云博客

本文链接：https://blog.youkuaiyun.com/xiamaocheng/article/details/126917898

本文介绍如何在Spring Boot项目中使用LiquiBase进行数据库版本管理和迁移。主要内容包括配置LiquiBase依赖、创建配置文件，并通过日志文件实现数据库更新或回滚。

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源码分析：

class LiquibaseChangelogMissingFailureAnalyzer extends AbstractFailureAnalyzer<ChangeLogParseException> {

	private static final String MESSAGE_SUFFIX = " does not exist";

	@Override
	protected FailureAnalysis analyze(Throwable rootFailure, ChangeLogParseException cause) {
		if (cause.getMessage().endsWith(MESSAGE_SUFFIX)) {
			String changelogPath = extractChangelogPath(cause);
			return new FailureAnalysis(getDescription(changelogPath),
					"Make sure a Liquibase changelog is present at the configured path.", cause);
		}
		return null;
	}

	private String extractChangelogPath(ChangeLogParseException cause) {
		return cause.getMessage().substring(0, cause.getMessage().length() - MESSAGE_SUFFIX.length());
	}

	private String getDescription(String changelogPath) {
		return "Liquibase failed to start because no changelog could be found at '" + changelogPath + "'.";
	}

}

LiqubaseDatabaseInitliazer:

class LiquibaseDatabaseInitializerDetector extends AbstractBeansOfTypeDatabaseInitializerDetector {

	@Override
	protected Set<Class<?>> getDatabaseInitializerBeanTypes() {
		return Collections.singleton(SpringLiquibase.class);
	}

}

整理jar 包：
package org.springframework.boot.liquibase;

二。使用：
LiquiBase 是一个数据库重构和迁移的开源框架，通过日志的方式来记录数据库的变更。通过执行日志文件中的修改，将数据库更新或回滚到达一致的状态。

三。使用步骤：

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

<!--mysql jdbc驱动 -->
<dependency>
	<groupId>mysql</groupId>
	<artifactId>mysql-connector-java</artifactId>
	<version>8.0.27</version>
</dependency>

2.2、创建SpringBoot配置文件来指定一些配置文件地址
LiquibaseConfig.java
@Configuration
public class LiquibaseConfig {

@Bean
public SpringLiquibase liquibase(DataSource dataSource) {
    SpringLiquibase liquibase = new SpringLiquibase();
    //设置数据源
    liquibase.setDataSource(dataSource);
    //sql文件位置
    liquibase.setChangeLog("classpath:liquibase/master.xml");
    return liquibase;
}

}

application.properties
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

在这里插入代码片

2.3、创建配置文件

<includeAll path="liquibase/sql/" relativeToChangelogFile="false"/>
<include file="liquibase/sql/service-v1.sql" relativeToChangelogFile="false"/>