标签:Hadoop 3.1.2报错:xception in thread "main" org.apache.hadoop.fs.UnsupportedFileSystemException: No FileSystem for scheme "hdfs"

Hadoop 3.1.2报错:xception in thread "main" org.apache.hadoop.fs.UnsupportedFileSystemException: No FileSystem for scheme "hdfs"

报错内容如下: Exception in thread 'main' org.apache.hadoop.fs.UnsupportedFileSystemException: No FileSystem for scheme 'hdfs'at org.apache.hadoop....