seaTunnel web 摆设踩坑记载
一、启动异常org.apache.seatunnel.api.sink.SchemaSaveMode not found在摆设过程中严格安装官方的文档操作，web服务启动时报错无法运行
1、java.lang.ClassNotFoundException: org.apache.seatunnel.api.sink.SchemaSaveMode
下载seatunnel 文本官方提供的安装包seaTunnel下载地址，我下载的是官方最新版1.0.1，按官方要求，将hazelcast-client.yaml、plugin-mapping.properties设置文件移入conf文件夹下，自行下载数据源包放入libs目次，使用启动命令启动web服务，启动报错
./bin/seatunnel-backend-daemon.sh start 错误如下：
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate : Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/seatunnel/api/sink/SchemaSaveMode
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:224)
...
Caused by: java.lang.NoClassDefFoundError: org/apache/seatunnel/api/sink/SchemaSaveMode
at org.apache.seatunnel.connectors.doris.config.DorisOptions.<clinit>(DorisOptions.java:204)
at org.apache.seatunnel.connectors.doris.sink.DorisSinkFactory.optionRule(DorisSinkFactory.java:57)
at org.apache.seatunnel.api.table.factory.FactoryUtil.sinkFullOptionRule(FactoryUtil.java:282)
at org.apache.seatunnel.plugin.discovery.AbstractPluginDiscovery.lambda$getAllPlugin$5(AbstractPluginDiscovery.java:273)
at java.lang.Iterable.forEach(Iterable.java:75)
at org.apache.seatunnel.plugin.discovery.AbstractPluginDiscovery.getAllPlugin(AbstractPluginDiscovery.java:248)
at org.apache.seatunnel.app.thirdparty.framework.PluginDiscoveryUtil.getAllConnectors(PluginDiscoveryUtil.java:126)
...
Caused by: java.lang.ClassNotFoundException: org.apache.seatunnel.api.sink.SchemaSaveMode
at java.net.URLClassLoader.findClass(URLClassLoader.java:387)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 33 common frames omitted 重点错误：
Caused by: java.lang.NoClassDefFoundError: org/apache/seatunnel/api/sink/SchemaSaveMode 根据错误路径，找到
org.apache.seatunnel.api 重点来了
位于seatunnel-api-2.3.3.jar中，反编译后发现包内缺失没有org/apache/seatunnel/api/sink/SchemaSaveMode类，发现1.0.1版本中用的2.3.5版本的Seatunnel，但这里使用的是seatunnel-api.2.3.3.jar，所以推测是版本不符导致，从maven下载seatunnel-api.2.3.5.jar包，并进行反编译检查，果然存在
https://img-blog.csdnimg.cn/direct/e022488725a2432cb5ea8a4c6675d042.png
解决版本：
下载seatunnel-api.2.3.5.jar，替换libs下的seatunnel-api.2.3.3.jar，重新启动服务，服务正常。
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