1.java.lang.IllegalAccessError: class org.apache.hadoop.hdfs.web.HftpFileSystem cannot access its superinterface org.apache.hadoop.hdfs.web.TokenAspect$TokenManagementDelegator

解决办法： 在IDEA中导出jar包之前，File->Project Structure->Artifacts->xxx.jar->Output Layout，将hadoop-hdfs-x.x.x.jar这个文件去除