需求：

需要获取hdfs文件的元数据信息，包括复制个数，是否为文件等

实现：

基于FileStatus，代码如下：

String filePath = "/hadoop/yourfile";Configuration configuration = new Configuration();FileSystem hdfs = FileSystem.get(configuration);FileStatus fileStatus = hdfs.getFileStatus(new Path(filePath));long accessTime = fileStatus.getAccessTime();long modificationTime = fileStatus.getModificationTime();boolean isDir = fileStatus.isDir();long blockSize = fileStatus.getBlockSize();String group = fileStatus.getGroup();long len = fileStatus.getLen();String owner = fileStatus.getOwner();//FsPermission封装了文件操作权限FsPermission fsPermission = fileStatus.getPermission();short replicationNum = fileStatus.getReplication();