文件详情查看

//文件详情查看
@Test
public void testListFiles() throws IOException, InterruptedException, URISyntaxException {

	//获取文件系统
	Configuration configuration = new Configuration();
	FileSystem fs = FileSystem.get(new URI("hdfs://192.168.12.161:9000"), configuration, "hadoop");
	//获取文件详情
	RemoteIterator<LocatedFileStatus> listFiles = fs.listFiles(new Path("/"), true);
	while(listFiles.hasNext()) {
		LocatedFileStatus filestatus = listFiles.next();
		//输出详情
		//文件名称
		System.out.println(filestatus.getPath().getName());
		//文件长度
		System.out.println(filestatus.getLen());
		//文件权限
		System.out.println(filestatus.getPermission());
		//分组
		System.out.println(filestatus.getGroup());
		//获取存储信息
		BlockLocation[] blockLocations = filestatus.getBlockLocations();
		for (BlockLocation blockLocation : blockLocations) {
			//获取块存储的主机节点
			String[] hosts = blockLocation.getHosts();
			for (String host : hosts) {
				System.out.println(host);
			}
		}
		System.out.println("------------这是一条分割线-------------");
	}
	//关闭资源
	fs.close();
}