本地上传文件到hdfs

import java.io.IOException;

 

import org.apache.hadoop.conf.Configuration;

import org.apache.hadoop.fs.FileStatus;

import org.apache.hadoop.fs.FileSystem;

import org.apache.hadoop.fs.Path;

public class UploadFile {

     public static void main(String[] args) throws IOException {

         Configuration conf = new Configuration();

         //conf.addResource(new Path("conf/hadoop-default.xml"));

         //conf.addResource(new Path("conf/hadoop-site.xml"));

         //通过conf来指定要操作的HDFS

         FileSystem hdfs = FileSystem.get(conf);

         //要上传的源文件所在路径

         Path src = new Path( "D:\\v.txt" );

         //hadoop文件系统的跟目录

         Path dst = new Path( "/" );

         //将源文件copy到hadoop文件系统

         hdfs.copyFromLocalFile(src, dst);

         System.out.println( "上传到" +conf.get( "fs.default.name" ));

         FileStatus files[] = hdfs.listStatus(dst);

         for ( int i= 0 ;i<files.length;i++)

         {

             System.out.println(files[i].getPath());

         }

     }

}