显示Hadoop文件系统中一组路径的文件信息，
显示Hadoop文件系统中一组路径的文件信息，
//显示Hadoop文件系统中一组路径的文件信息//我们可以用这个程序来显示一组路径集目录列表的并集
package com;
import java.io.IOException;
import java.net.URI;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.fs.Path;
public class ListStatus {
/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
String uri = args[0];
Configuration conf = new Configuration();
FileSystem fs = FileSystem.get(URI.create(uri), conf);
Path[] paths = new Path[args.length];
for(int i = 0; i < paths.length; i++){
paths[i] = new Path(args[i]);
}
FileStatus[] status = fs.listStatus(paths);
Path[] listedPaths = FileUtil.stat2Paths(status);
for(Path p : listedPaths){
System.out.println(p);
}
}
}
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