HDFS API编程：第一个应用程序的开发

使用java api操作HDFS文件系统:

1）创建Configuration2）获取FileSystem3）一系列HDFS API操作

package com.haglife.bigdata.hadoop.hdfs;

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

import java.net.URI;


public class HDFSApp {

    public static void main(String[] args) throws Exception {
        Configuration configuration = new Configuration();
        // 操作HDFS文件系统入口
        FileSystem fileSystem = FileSystem.get(new URI("hdfs://masternode:8020"), configuration, "uname");

        Path path = new Path("/hdfsapi/test");
        boolean result = fileSystem.mkdirs(path);
        System.out.println(result);
    }

}