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Editor to share with you hadoop how to create and delete folder files, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Package hadoop.test;import java.io.IOException;import java.net.URI;import java.net.URISyntaxException;import org.apache.hadoop.conf.Configuration;import org.apache.hadoop.fs.FileSystem;import org.apache.hadoop.fs.Path;public class FileSystemTest {public static void main (String [] args) throws IOException, URISyntaxException {Configuration cfg = new Configuration (); FileSystem fs = FileSystem.get (new URI ("hdfs://data1:9000"), cfg) / / fs.open (new Path (new URI ("hdfs://data1:9000"); boolean flgs = fs.exists (new Path (new URI ("/ hgs"); if (flgs) {boolean flg = fs.isDirectory (new Path (new URI ("/ hgs")); System.out.println (flg) / / add the environment variable HADOOP_USER_NAME=root / / from a local copy file to hdfs / / fs.copyFromLocalFile (true,new Path ("e:\\ install.ini"), new Path ("/ hgs/tmp.txt")) / / copy hdfs file to local / / fs.copyToLocalFile (false,new Path ("hdfs://data1:9000/hgs/tmp.txt"), new Path ("e:\\ tmp.txt"), true) / / create a folder / / boolean fl = fs.mkdirs (new Path ("/ hgs/hgstmp")); / / System.out.println (fl); boolean f = fs.delete (new Path ("/ hgs/hgstmp"), true) System.out.println (f);} System.out.println (flgs); fs.close ();}} above are all the contents of the article "how to create and delete folder files by hadoop". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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