Liquibase在类路径中没有认识到蛇形瓶

Question

我正在使用liquibase从现有数据库创建changelog，它正在使用xml格式。当我添加.yaml格式时，它失败了抱怨没有找到必要的类。我在classpath上添加了snakeyaml-1.12.jar并将其加载到命令中，就像这里一样。

  

java -jar liquibase.jar --driver = com.mysql.jdbc.Driver --classpath = snakeyaml-1.12.jar; mysql-connector-java-8.0.11.jar --changeLogFile = db.changelog.xml --url =＆＃34; JDBC：MySQL的：//本地主机：3306 / ABC＆＃34; --username = abcd --password = @@@@ --defaultSchemaName = abc generateChangeLog

和我的类文件夹结构

我正在追踪异常

Liquibase Update Failed: No serializer associated with the filename or extension 'yaml'
SEVERE 6/14/18 1:31 PM:liquibase: No serializer associated with the filename or extension 'yaml'
java.lang.RuntimeException: No serializer associated with the filename or extension 'yaml'
        at liquibase.serializer.ChangeLogSerializerFactory.getSerializer(ChangeLogSerializerFactory.java:51)
        at liquibase.diff.DiffResult.printChangeLog(DiffResult.java:405)
        at liquibase.integration.commandline.CommandLineUtils.doGenerateChangeLog(CommandLineUtils.java:151)
        at liquibase.integration.commandline.Main.doMigration(Main.java:760)
        at liquibase.integration.commandline.Main.main(Main.java:134)