大資料入門(六)hdfs的客戶端java
阿新 • • 發佈:2018-12-20
從hdfs中copy 檔案到當前虛擬機器
1、匯入jar E:\lib\hadoop-2.4.1\share\hadoop\hdfs E:\lib\hadoop-2.4.1\share\hadoop\common
2、copy 安裝的Hadoop下的檔案 core-site.xml hdfs-site.xml
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration(); FileSystem fs = FileSystem.get(conf); String url = "hdfs://192.168.1.115:9000/jdk-7u71-linux-x64.tar.gz"; Path path = new Path(); FSDataInputStream is = fs.open(path); FileOutputStream os = new FileOutputStream("/home/admin/download/jdk.tar.gz"); IOUtils.copy(is, os); }