需要的jar包：ganymed-ssh2-build210.jar

import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; import ch.ethz.ssh2.Connection; import ch.ethz.ssh2.SCPClient; public class Scpclient {     // public Scpclient(){}     static private Scpclient instance;     static synchronized public Scpclient getInstance(String IP, int port,             String username, String passward) {         if (instance == null) {             instance = new Scpclient(IP, port, username, passward);         }         return instance;     }     public Scpclient(String IP, int port, String username, String passward) {         this.ip = IP;         this.port = port;         this.username = username;         this.password = passward;     }         public void getFile(String remoteFile, String localTargetDirectory) {         Connection conn = new Connection(ip,port);         try {             conn.connect();             boolean isAuthenticated = conn.authenticateWithPassword(username,                     password);             if (isAuthenticated == false) {                 System.err.println("authentication failed");             }             SCPClient client = new SCPClient(conn);             client.get(remoteFile, localTargetDirectory);             conn.close();         } catch (IOException ex) {             Logger.getLogger(SCPClient.class.getName()).log(Level.SEVERE, null,ex);         }     }         public void putFile(String localFile, String remoteTargetDirectory) {         Connection conn = new Connection(ip,port);         try {             conn.connect();             boolean isAuthenticated = conn.authenticateWithPassword(username,                     password);             if (isAuthenticated == false) {                 System.err.println("authentication failed");             }             SCPClient client = new SCPClient(conn);             client.put(localFile, remoteTargetDirectory);             conn.close();         } catch (IOException ex) {             Logger.getLogger(SCPClient.class.getName()).log(Level.SEVERE, null,ex);         }     }             public void putFile(String localFile, String remoteFileName,String remoteTargetDirectory,String mode) {         Connection conn = new Connection(ip,port);         try {             conn.connect();             boolean isAuthenticated = conn.authenticateWithPassword(username,                     password);             if (isAuthenticated == false) {                 System.err.println("authentication failed");             }             SCPClient client = new SCPClient(conn);             if((mode == null) || (mode.length() == 0)){                 mode = "0600";             }             client.put(localFile, remoteFileName, remoteTargetDirectory, mode);                         //重新命名             ch.ethz.ssh2.Session sess = conn.openSession();             String tmpPathName = remoteTargetDirectory +File.separator+ remoteFileName;             String newPathName = tmpPathName.substring(0, tmpPathName.lastIndexOf("."));             sess.execCommand("mv " + remoteFileName + " " + newPathName);//重新命名回來                         conn.close();         } catch (IOException ex) {             Logger.getLogger(SCPClient.class.getName()).log(Level.SEVERE, null,ex);         }     }     //    public void putFile(String localFile, String remoteFileName,String remoteTargetDirectory) { //        Connection conn = new Connection(ip,port); //        try { //            conn.connect(); //            boolean isAuthenticated = conn.authenticateWithPassword(username, //                    password); //            if (isAuthenticated == false) { //                System.err.println("authentication failed"); //            } //            SCPClient client = new SCPClient(conn); //            client.put(getBytes(localFile), remoteFileName, remoteTargetDirectory); //            conn.close(); //        } catch (IOException ex) { //            Logger.getLogger(SCPClient.class.getName()).log(Level.SEVERE, null,ex); //        } //    }         public static byte[] getBytes(String filePath) {         byte[] buffer = null;         try {             File file = new File(filePath);             FileInputStream fis = new FileInputStream(file);             ByteArrayOutputStream byteArray = new ByteArrayOutputStream(1024*1024);             byte[] b = new byte[1024*1024];             int i;             while ((i = fis.read(b)) != -1) {                 byteArray.write(b, 0, i);             }             fis.close();             byteArray.close();             buffer = byteArray.toByteArray();         } catch (FileNotFoundException e) {             e.printStackTrace();         } catch (IOException e) {             e.printStackTrace();         }         return buffer;     }     private String ip;     private int port;     private String username;     private String password;     public String getUsername() {         return username;     }     public void setUsername(String username) {         this.username = username;     }     public String getPassword() {         return password;     }     public void setPassword(String password) {         this.password = password;     }     public int getPort() {         return port;     }     public void setPort(int port) {         this.port = port;     } } 呼叫方法： Scpclient scp = Scpclient.getInstance(ip, port,uname,pwd); scp.putFile("本地檔案路徑", fileFeed.getName()+".tmp", "推送檔案，到伺服器的目錄路徑", null); scp.getFile(remoteFile, localTargetDirectory);