Shulou(Shulou.com)06/02 Report--

Import java.io.ByteArrayOutputStream

Import java.io.InputStream

Import java.net.URL

Import org.apache.hadoop.conf.Configuration

Import org.apache.hadoop.fs.FSDataInputStream

Import org.apache.hadoop.fs.FileStatus

Import org.apache.hadoop.fs.FileSystem

Import org.apache.hadoop.fs.FsUrlStreamHandlerFactory

Import org.apache.hadoop.fs.LocalFileSystem

Import org.apache.hadoop.fs.Path

Import org.apache.hadoop.io.IOUtils

Import org.junit.Test

/ * *

* Test the API of the hadoop file system

*

* @ author Administrator

*

, /

Public class localfilesytem {

/ * *

* get the local file system through the filesystem object API

*

* @ author Administrator

*

*

*

*

, /

@ Test

Public void read () throws Exception {

/ / create configuration objects, which have a default loading order, starting from core-default.xml, and then to files in the src directory, which

/ / We have given

Configuration conf = new Configuration ()

/ / you can add the specified profile manually

/ / conf.addResource ("my-core-site.xml")

/ / the distributed file system fs is created through the configuration object of conf. By default, it is the local file system if no file is specified.

/ / system

FileSystem fs = FileSystem.get (conf)

/ / get the local file system object through the getLocal method

LocalFileSystem local = fs.getLocal (conf)

/ / get an array of file states through the listStatus method of the local file object

FileStatus [] arr = local.listStatus (new Path ("DRV /"))

/ / traversing the array

For (FileStatus fs0: arr) {

System.out.println (fs0.getPath ())

}

}

}

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