JAVA上传文件到HDFS

package com.hqgf.testhdfs;

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.Path;

public class Hdfs {
	static Configuration conf = new Configuration();

    static {
        conf.set("fs.defaultFS", "hdfs://cluster");
        conf.set("dfs.nameservices", "cluster");
        conf.set("dfs.ha.namenodes.cluster", "nn1,nn2");
        conf.set("dfs.namenode.rpc-address.cluster.nn1", "xxx.xx.x.xxx:8020");
        conf.set("dfs.namenode.rpc-address.cluster.nn2", "xxx.xx.x.xxx:8020");
        conf.set("dfs.client.failover.proxy.provider.cluster"
                ,"org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider");
    }
    
    public static void  getDirectoryFromHdfs(String direPath){
        try {
            FileSystem fs = FileSystem.get(URI.create(direPath),conf);
            FileStatus[] filelist = fs.listStatus(new Path(direPath));
            for (int i = 0; i < filelist.length; i++) {
                System.out.println("_________" + direPath + "目录下所有文件______________");
                FileStatus fileStatus = filelist[i];
                System.out.println("Name:"+fileStatus.getPath().getName());
                System.out.println("Size:"+fileStatus.getLen());
                System.out.println("Path:"+fileStatus.getPath());
            }
            fs.close();
        } catch (Exception e){

        }
    }

    public static void uploadFile(String src,String dst) throws IOException{
        
        FileSystem fs = FileSystem.get(conf);
        Path srcPath = new Path(src); //本地上传文件路径
        Path dstPath = new Path(dst); //hdfs目标路径
        //调用文件系统的文件复制函数,前面参数是指是否删除原文件，true为删除，默认为false
        fs.copyFromLocalFile(false, srcPath, dstPath);

        //打印文件路径
        System.out.println("Upload to "+conf.get("fs.default.name"));
        System.out.println("------------list files------------"+"\n");
        FileStatus [] fileStatus = fs.listStatus(dstPath);
        for (FileStatus file : fileStatus)
        {
            System.out.println(file.getPath());
        }
        fs.close();
    }
    
    public static void main(String[] args) throws IOException {

//        String localFilePath = "D:\\Project\\eclipse\\workspace\\DataCenterChanger\\test\\20180108.txt";
//        String hdfsFilePath = "/tmp/";
//        System.out.println(localFilePath);
//        System.out.println(hdfsFilePath);
//        uploadFile(localFilePath,hdfsFilePath);
        getDirectoryFromHdfs("/tmp/20180108.txt");

    }
}