hadoop创建hdfs目录 hadoop建立目录

package com.hadoop.hdfs;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;

import java.io.IOException;

public class Client {
    public static void main(String[] args) throws IOException {
        Configuration conf=new Configuration();
        conf.set("fs.defaultFS","hdfs://localhost:9000");

        //修改用户方法
        //1.vm arguments中添加后面的参数来修改用户 -DHADOOP_USER_NAME=hadoop
        //2. conf.set使用重载方法修改用户

        //1.获取hdfs客户端对象
        FileSystem fs=FileSystem.get(conf);

        //2.在hdfs上创建路径
        fs.mkdirs(new Path("/hadoop/example/xy1"));

        //3.关闭资源
        fs.close();

        System.out.println("over");
    }
}