Merge pull request #7346 from Doha2012/master

sftp file transfer

libraries-io/README.md

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+
+### Relevant Articles: 
+
+

libraries-io/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>libraries-io</artifactId>
+    <name>libraries-io</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+        <!-- sftp file transfer -->
+        <dependency>
+            <groupId>com.jcraft</groupId>
+            <artifactId>jsch</artifactId>
+            <version>${jsch.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.hierynomus</groupId>
+            <artifactId>sshj</artifactId>
+            <version>${sshj.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-vfs2</artifactId>
+            <version>${vfs.version}</version>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <!-- sftp -->
+        <jsch.version>0.1.55</jsch.version>
+        <sshj.version>0.27.0</sshj.version>
+        <vfs.version>2.4</vfs.version>
+    </properties>
+</project>

libraries-io/src/main/resources/input.txt

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+This is a sample text content

libraries-io/src/test/java/org/baeldung/java/io/remote/SftpFileTransferLiveTest.java

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+package org.baeldung.java.io.remote;
+
+import java.io.IOException;
+
+import org.apache.commons.vfs2.FileObject;
+import org.apache.commons.vfs2.FileSystemManager;
+import org.apache.commons.vfs2.Selectors;
+import org.apache.commons.vfs2.VFS;
+import org.junit.Test;
+
+import com.jcraft.jsch.ChannelSftp;
+import com.jcraft.jsch.JSch;
+import com.jcraft.jsch.JSchException;
+import com.jcraft.jsch.Session;
+import com.jcraft.jsch.SftpException;
+
+import net.schmizz.sshj.SSHClient;
+import net.schmizz.sshj.sftp.SFTPClient;
+import net.schmizz.sshj.transport.verification.PromiscuousVerifier;
+
+public class SftpFileTransferLiveTest {
+
+    private String remoteHost = "HOST_NAME_HERE";
+    private String username = "USERNAME_HERE";
+    private String password = "PASSWORD_HERE";
+    private String localFile = "src/main/resources/input.txt";
+    private String remoteFile = "welcome.txt";
+    private String localDir = "src/main/resources/";
+    private String remoteDir = "remote_sftp_test/";
+    private String knownHostsFileLoc = "/Users/USERNAME/known_hosts_sample";
+
+    @Test
+    public void whenUploadFileUsingJsch_thenSuccess() throws JSchException, SftpException {
+        ChannelSftp channelSftp = setupJsch();
+        channelSftp.connect();
+        channelSftp.put(localFile, remoteDir + "jschFile.txt");
+        channelSftp.exit();
+    }
+
+    @Test
+    public void whenDownloadFileUsingJsch_thenSuccess() throws JSchException, SftpException {
+        ChannelSftp channelSftp = setupJsch();
+        channelSftp.connect();
+        channelSftp.get(remoteFile, localDir + "jschFile.txt");
+        channelSftp.exit();
+    }
+
+    @Test
+    public void whenUploadFileUsingSshj_thenSuccess() throws IOException {
+        SSHClient sshClient = setupSshj();
+        SFTPClient sftpClient = sshClient.newSFTPClient();
+        sftpClient.put(localFile, remoteDir + "sshjFile.txt");
+        sftpClient.close();
+        sshClient.disconnect();
+    }
+
+    @Test
+    public void whenDownloadFileUsingSshj_thenSuccess() throws IOException {
+        SSHClient sshClient = setupSshj();
+        SFTPClient sftpClient = sshClient.newSFTPClient();
+        sftpClient.get(remoteFile, localDir + "sshjFile.txt");
+        sftpClient.close();
+        sshClient.disconnect();
+    }
+
+    @Test
+    public void whenUploadFileUsingApacheVfs_thenSuccess() throws IOException {
+        FileSystemManager manager = VFS.getManager();
+        FileObject local = manager.resolveFile(System.getProperty("user.dir") + "/" + localFile);
+        FileObject remote = manager.resolveFile("sftp://" + username + ":" + password + "@" + remoteHost + "/" + remoteDir + "vfsFile.txt");
+        remote.copyFrom(local, Selectors.SELECT_SELF);
+        local.close();
+        remote.close();
+    }
+
+    @Test
+    public void whenDownloadFileUsingApacheVfs_thenSuccess() throws IOException {
+        FileSystemManager manager = VFS.getManager();
+        FileObject local = manager.resolveFile(System.getProperty("user.dir") + "/" + localDir + "vfsFile.txt");
+        FileObject remote = manager.resolveFile("sftp://" + username + ":" + password + "@" + remoteHost + "/" + remoteFile);
+        local.copyFrom(remote, Selectors.SELECT_SELF);
+        local.close();
+        remote.close();
+    }
+
+    // ====== ssh-keyscan -H -t rsa remoteHost >> known_hosts_sample
+
+    private ChannelSftp setupJsch() throws JSchException {
+        JSch jsch = new JSch();
+        jsch.setKnownHosts(knownHostsFileLoc);
+        Session jschSession = jsch.getSession(username, remoteHost);
+        jschSession.setPassword(password);
+        //jschSession.setConfig("StrictHostKeyChecking", "no");
+        jschSession.connect();
+        return (ChannelSftp) jschSession.openChannel("sftp");
+    }
+
+    private SSHClient setupSshj() throws IOException {
+        SSHClient client = new SSHClient();
+        client.addHostKeyVerifier(new PromiscuousVerifier());
+        client.connect(remoteHost);
+        client.authPassword(username, password);
+        return client;
+    }
+
+}

pom.xml

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 				<module>libraries-security</module>
 				<module>libraries-server</module>
 				<module>libraries-http</module>
+				<module>libraries-io</module>
 				<module>linkrest</module>
 				<module>logging-modules</module>
 				<module>lombok</module>