1. 引入Liquibase

<!-- LiquiBase是一个用于数据库重构和迁移的开源工具 -->
    <dependency>
        <groupId>org.liquibase</groupId>
        <artifactId>liquibase-core</artifactId>
        <version>4.2.0</version>
    </dependency>

2. 配置文件

具体关于LiquiBase的配置可以参考：

https://blog.csdn.net/a112626290/article/details/104263790

changelog-master.xml

<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">
     <!-- changelog支持多种格式，主要有XML/JSON/YAML/SQL，推荐使用xml格式 -->
     <!-- 初始化最初的数据库 -->
    <include file="changelog/init_table.sql" relativeToChangelogFile="true"/>
<include file="changelog/init_data.sql" relativeToChangelogFile="true"/>
     <!-- relativeToChangelogFile：用文件的相对路径而不是classpath -->
    <!-- 对数据库表的更改过程 -->
    <include file="changelog/table.xml" relativeToChangelogFile="true" />  
    <!-- 对视图的更改过程 -->
    <include file="changelog/view.xml" relativeToChangelogFile="true" />  
    <!-- 对数据的操作 -->
    <include file="changelog/data.xml" relativeToChangelogFile="true" /> 
</databaseChangeLog>

3.创建StartInitService

import java.sql.SQLException;
import com.cxhd.rp.tool.Utils;
import com.jfinal.kit.Prop;
import com.jfinal.kit.PropKit;
import com.jfinal.kit.StrKit;
import com.jfinal.plugin.druid.DruidPlugin;
import liquibase.Liquibase;
import liquibase.database.jvm.JdbcConnection;
import liquibase.exception.LiquibaseException;
import liquibase.resource.ClassLoaderResourceAccessor;
import liquibase.resource.ResourceAccessor;
public class StartInitService {
    private DruidPlugin druid;
    private String[] folders = { "health", "pacsio", "dcmrisen" };
    private String[] dbUrlNames = { "jdbcUrl", "jdbcUrl1", "jdbcUrl2" };
    public void init() {
        Prop p = PropKit.use("db.properties");
        // 从对应的配置文件里面取数据
        String activeConfig = PropKit.get("profiles.active");
        if (!StrKit.isBlank(activeConfig)) {
            p.appendIfExists("db/db_" + activeConfig + ".properties", "utf-8");
        }
        for (int i = 0; i < folders.length; i++) {
            druid = new DruidPlugin(p.get(dbUrlNames[i]), p.get("user"), p.get("password"));
            initDbConnection(folders[i]);
        }
    }
    /**
     * 初始化数据库连接
     * 
     * @return
     */
    private void initDbConnection(String folderName) {
        druid.start();
        ResourceAccessor clFO = new ClassLoaderResourceAccessor();
        Liquibase liquibase = null;
        try {
            liquibase = new Liquibase("classpath:liquibase/" + folderName + "/changelog-master.xml", clFO,
            new JdbcConnection(druid.getDataSource().getConnection()));
            liquibase.update("");
        } catch (LiquibaseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            try {
                liquibase.close();
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            druid.stop();
        }
    }
}

4.启动配置，在config里面启动该初始化数据