1、Code -> GitHub

https://github.com/liufengji/hadoop_hdfs.git

2、Code

//查看文件名称、权限、长度、块信息
@Test
public void readListFiles() throws Exception {
    // 1 创建配置信息对象
    Configuration configuration = new Configuration();
    FileSystem fs = FileSystem.get(new URI("hdfs://node1:9000"),configuration, "victor");
    
    RemoteIterator<LocatedFileStatus> listFiles = fs.listFiles(new Path("/"), true);

    while (listFiles.hasNext()) {
        LocatedFileStatus fileStatus = listFiles.next();
            
        System.out.println(fileStatus.getPath().getName());
        System.out.println(fileStatus.getBlockSize());
        System.out.println(fileStatus.getPermission());
        System.out.println(fileStatus.getLen());
            
        BlockLocation[] blockLocations = fileStatus.getBlockLocations();
            
        for (BlockLocation bl : blockLocations) {
                
            System.out.println("block-offset:" + bl.getOffset());
                
            String[] hosts = bl.getHosts();
                
            for (String host : hosts) {
                System.out.println(host);
            }
        }
            
        System.out.println("--------------分割线--------------");
    }
}