Implement SFTP server functions in JAVA

Because the project needs to encrypt and upload files, it is inconvenient to use the SFTP service provided by the Linux system. Therefore, you need to implement a set of SFTP services by yourself. Here we use the SSHD Protocol implemented by MINA, an open-source software of Apache. Specific URL: http://mina.apache.org/sshd-project/embedding_ssh.html

 

You need to reference some Apache open-source architecture packages,

The server segment is implemented as follows:

 

Package com. song. sftpServer; import java. io. IOException; import java. util. arrayList; import java. util. list; import org. apache. sshd. sshServer; import org. apache. sshd. client. userAuth; import org. apache. sshd. common. namedFactory; import org. apache. sshd. common. keyprovider. fileKeyPairProvider; import org. apache. sshd. server. command; import org. apache. sshd. server. passwordAuthenticator; import org. apache. sshd. server. auth. userAuthNone; import org. apache. sshd. server. command. scpCommandFactory; import org. apache. sshd. server. keyprovider. simpleGeneratorHostKeyProvider; import org. apache. sshd. server. sftp. sftpSubsystem; import org. apache. sshd. server. shell. processShellFactory; public class SftpServer {public static void main (String [] args) {// factory method. Use the default property to create an ssh service object SshServer sshd = SshServer. setupdefaserver server (); sshd. setPort (4444); String stest = "F: \ MyEclipse \ SFTPServer \ key. pem "; String [] sKyepPath = {stest}; // Save the session security verification information, key. pem and key. ser is the file name sshd. setKeyPairProvider (new FileKeyPairProvider (sKyepPath); List <NamedFactory <Command> namedFactoryList = new ArrayList <NamedFactory <Command> (); namedFactoryList. add (new SftpSubsystem. factory (); sshd. setSubsystemFactories (namedFactoryList); sshd. setCommandFactory (new ScpCommandFactory (); sshd. setShellFactory (new ProcessShellFactory (); sshd. setPasswordAuthenticator (new Authcator (); try {sshd. start ();} catch (IOException e) {// TODO Auto-generated catch blocke. printStackTrace ();}}}

 

Certification

package com.song.SftpServer;import org.apache.sshd.server.PasswordAuthenticator;import org.apache.sshd.server.session.ServerSession;public class Authcator implements PasswordAuthenticator {@Overridepublic boolean authenticate(String arg0, String arg1, ServerSession arg2) {// TODO Auto-generated method stubif(arg0.endsWith("song")&&arg1.endsWith("song")){return true;}else{return false;}}}

 

 

The implementation is as follows. You can use FileZile to successfully connect to the server. There is no Chinese problem on the Linux server. The only drawback is that Chinese decoding is not supported for the time being and will be studied later.

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