FileSystem fileSystem = FileSystem.get(new URI("hdfs://192.168.1.213:8020"), conf, "admin"); fileSystem.delete(new Path("/user/admin/403/"), true); fileSystem.close(); } /** * 上传文件 * JavaAPI在操作文件 上传时,如果文件已经存在于HDFS中,则先删除HDFS中的文件,再上传 * 但是如果使...
server: port: 8080 #注意这个设置会引发 重新加定义的 servlet: context-path: /file spring: application: name: file-server thymeleaf: prefix: classpath:/templates/ suffix: .html mode: HTML encoding: utf-8 servlet: content-type: text/html cache: false servlet: multipart: #文件上传大小设置 最...
return fileSystem; } // 第二种 public FileSystem getFileSystem2() throws URISyntaxException, IOException { Configuration configuration = new Configuration(); configuration.set("fs.defaultFS", "hdfs://mycluster:8020"); FileSystem fileSystem = FileSystem.get(new URI("/"), configuration); return...
public static final String HDFS_PATH = "hdfs://192.168.10.150:8020"; //hdfs文件系统 FileSystem fileSystem = null; //获取环境对象 Configuration configuration = null; /** * 新建目录 * * @throws IOException */ @Test public void mkdir() throws IOException { fileSystem.mkdirs(new Path("/user...
Stringurl = "hdfs://192.168.52.100:8020/test/input/install.log"; //打开文件输入流 try { inputStream = new URL(url).openStream(); outputStream = new FileOutputStream(newFile("c:\\hello.txt")); IOUtils.copy(inputStream,outputStream); ...
*/@Component@RequiredArgsConstructorpublicclassHdfsUtils{//配置链接虚拟机的IPpublicstaticfinalStringHDFS_PATH="hdfs://192.168.10.150:8020";//hdfs文件系统FileSystemfileSystem=null;//获取环境对象Configurationconfiguration=null;/** * 新建目录 * *@throwsIOException*/@Testpublicvoidmkdir()throwsIOException{fil...
conf.set("dfs.namenode.rpc-address.dragoncluster.nn2","n02.dragon.com:8020"); conf.set("dfs.client.failover.proxy.provider.dragoncluster","org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider"); //设置实现类,因为会出现类覆盖的问题 ...
FileSystem fs = FileSystem.get(new URI("hdfs://192.168.10.3:8020"), configuration, "root"); // 2 执行下载操作 // boolean delSrc 指是否将原文件删除 // Path src 指要下载的文件路径 // Path dst 指将文件下载到的路径 // boolean useRawLocalFileSystem 是否开启文件校验 ...
@Test public void testCopyFromLocalFile() throws IOException, InterruptedException, URISyntaxException { // 1 获取文件系统 Configuration configuration = new Configuration(); configuration.set("dfs.replication", "2"); FileSystem fs = FileSystem.get(new URI("hdfs://hadoop102:8020"), configuration, ...
<value>node2:8020</value> </property> <!-- nn2的http通信地址 --> <property> <name>dfs.namenode.http-address.cluster1.nn2</name> <value>node2:50070</value> </property> <!-- 指定NameNode的edits元数据在JournalNode上的存放位置 --> ...