本文簡單介紹用SSH庫ganymed-ssh2在Android中實現(xiàn)scp操作。

SSH是專為遠程登錄會話和其他網(wǎng)絡服務提供安全性的協(xié)議，簡單的說就是一種網(wǎng)絡協(xié)議。是linux的標準配置。用于linux設備之間的通訊。

SCP是一種基于SSH完成加密拷貝文件的協(xié)議。使用SSH進行身份認證確保數(shù)據(jù)傳輸?shù)恼鎸嵭院涂煽啃浴?/p>

SCP默認通過TCP端口22運行

SCP程序常用語法：

// 復制文件到主機scp SourceFile user@host:directory/TargetFile// 從主機復制文件scp user@host:directory/SourceFile TargetFilescp -r user@host:directory/SourceFolder TargetFolder

// 從主機復制文件scp user@host:directory/SourceFile TargetFilescp -r user@host:directory/SourceFolder TargetFolderSFTP

SFTP也是基于SSH安全文件傳輸協(xié)議。不同于基于FTP,FTP基于Tcp使用明文傳輸用戶信息。安全性較差。

<!-- https://mvnrepository.com/artifact/ch.ethz.ganymed/ganymed-ssh2 --><dependency> <groupId>ch.ethz.ganymed</groupId> <artifactId>ganymed-ssh2</artifactId> <version>build210</version></dependency>

官方下載地址 http://www.ganymed.ethz.ch/ssh2/

public class Scp { private volatile static Scp scpInstance; private String user; private String pass; private String host; private Connection connection; private SCPClient scpClient; private Boolean isAuthed; private Scp(String user, String pass, String host){ this.user = user; this.pass = pass; this.host = host; } public static Scp getScpUtilsInstance(String user, String pass, String host){ if(scpInstance == null) { synchronized(Scp.class) {if(scpInstance == null) { scpInstance = new Scp(user,pass,host);} } } return scpInstance; } public void connect(){ connection = new Connection(host); try { connection.connect(); isAuthed = connection.authenticateWithPassword(user,pass); // scp 連接 scpClient = connection.createSCPClient(); } catch (IOException e) { e.printStackTrace(); close(); } } public void close(){ connection.close(); sftPv3Client.close(); } public boolean getIsAuthed(){ return isAuthed; } // 拷貝文件到服務器 public void putFile(String filePath,String aimPath){ try { if(scpClient != null){scpClient.put(filePath,aimPath); } } catch (IOException e) { e.printStackTrace(); } } }

Scp scp = Scp.getScpUtilsInstance('root','psd','192.168.199.3'); scp.connect(); if(scp.getIsAuthed()){for(int i = 0;i<data.getLayers();i++){ scp.putFile(SlcParser.pngDirectory+'/'+i+'.png','/home');} }

private SFTPv3Client sftPv3Client; sftPv3Client = new SFTPv3Client(connection); public void rmFile(String filePath){ try {if(sftPv3Client != null){ sftPv3Client.rm(filePath);} } catch (IOException e) {e.printStackTrace(); } }Scp scp = Scp.getScpUtilsInstance('root','psd','192.168.199.3');scp.connect();if(scp.getIsAuthed()){ for(int i = 0;i<10;i++){ scp.rmFile('/home/'+i+'.png'); }}

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