@Test
public void putData() throws  Exception{
    FileSystem fileSystem = FileSystem.get(new URI("hdfs://192.168.52.250:8020"), new Configuration());
    fileSystem.copyFromLocalFile(new Path("file:///c:\\install.log"),new Path("/hello/mydir/test"));
    fileSystem.close();
}

@Test
public void getFileToLocal()throws  Exception{
    FileSystem fileSystem = FileSystem.get(new URI("hdfs://192.168.52.250:8020"), new Configuration());
    FSDataInputStream open = fileSystem.open(new Path("/test/input/install.log"));
    FileOutputStream fileOutputStream = new FileOutputStream(new File("c:\\install.log"));
    IOUtils.copy(open,fileOutputStream );
    IOUtils.closeQuietly(open);
    IOUtils.closeQuietly(fileOutputStream);
    fileSystem.close();
}