问题一：Exception in thread "Thread-2" java.lang.NoClassDefFoundError: org/codehaus/janino/InternalCompilerException

 

<dependency>
   <groupId>org.apache.spark</groupId>
   <artifactId>spark-sql_2.12</artifactId>
   <version>3.2.0</version>
   <scope>provided</scope>      
</dependency>

 

随spark-sql依赖引进的janino版本是3.1.6，这个版本好像太高了，重新引进低版本解决

<dependency>
   <groupId>org.codehaus.janino</groupId>
   <artifactId>commons-compiler</artifactId>
   <version>3.0.8</version>
</dependency>
<dependency>
   <groupId>org.codehaus.janino</groupId>
   <artifactId>janino</artifactId>
   <version>3.0.8</version>
</dependency>