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	ch.ethz.ganymed
	ganymed-ssh3
	262



	com.jcraft
	jsch
	0.1.55

public class ResultEntity {

  private String code;

  private String message;

  private File file;
  
  public ResultEntity(){}
  
	public ResultEntity(String code, String message, File file) {
		super();
		this.code = code;
		this.message = message;
		this.file = file;
	}

	public String getCode() {
		return code;
	}

	public void setCode(String code) {
		this.code = code;
	}

	public String getMessage() {
		return message;
	}

	public void setMessage(String message) {
		this.message = message;
	}

	public File getFile() {
		return file;
	}

	public void setFile(File file) {
		this.file = file;
	}
  
}

public class ScpConnectEntity {
  private String userName;
  private String passWord;
  private String url;
  private String targetPath;

  public String getTargetPath() {
    return targetPath;
  }

  public void setTargetPath(String targetPath) {
    this.targetPath = targetPath;
  }

  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 String getUrl() {
    return url;
  }

  public void setUrl(String url) {
    this.url = url;
  }

}

@Configuration
public class FileUploadUtil {

  @Value("${remoteServer.url}")
  private String url;

  @Value("${remoteServer.password}")
  private String passWord;

  @Value("${remoteServer.username}")
  private String userName;

  @Async
  public ResultEntity uploadFile(File file, String targetPath, String remoteFileName) throws Exception{
    ScpConnectEntity scpConnectEntity=new ScpConnectEntity();
    scpConnectEntity.setTargetPath(targetPath);
    scpConnectEntity.setUrl(url);
    scpConnectEntity.setPassWord(passWord);
    scpConnectEntity.setUserName(userName);

    String code = null;
    String message = null;
    try {
      if (file == null || !file.exists()) {
        throw new IllegalArgumentException("請(qǐng)確保上傳文件不為空且存在！");
      }
      if(remoteFileName==null || "".equals(remoteFileName.trim())){
        throw new IllegalArgumentException("遠(yuǎn)程服務(wù)器新建文件名不能為空!");
      }
      remoteUploadFile(scpConnectEntity, file, remoteFileName);
      code = "ok";
      message = remoteFileName;
    } catch (IllegalArgumentException e) {
      code = "Exception";
      message = e.getMessage();
    } catch (JSchException e) {
      code = "Exception";
      message = e.getMessage();
    } catch (IOException e) {
      code = "Exception";
      message = e.getMessage();
    } catch (Exception e) {
      throw e;
    } catch (Error e) {
      code = "Error";
      message = e.getMessage();
    }
    return new ResultEntity(code, message, null);
  }


  private void remoteUploadFile(ScpConnectEntity scpConnectEntity, File file,
                 String remoteFileName) throws JSchException, IOException {

    Connection connection = null;
    ch.ethz.ssh3.Session session = null;
    SCPOutputStream scpo = null;
    FileInputStream fis = null;

    try {
      createDir(scpConnectEntity);
    }catch (JSchException e) {
      throw e;
    }

    try {
      connection = new Connection(scpConnectEntity.getUrl());
      connection.connect();

      if(!connection.authenticateWithPassword(scpConnectEntity.getUserName(),scpConnectEntity.getPassWord())){
        throw new RuntimeException("SSH連接服務(wù)器失敗");
      }
      session = connection.openSession();

      SCPClient scpClient = connection.createSCPClient();

      scpo = scpClient.put(remoteFileName, file.length(), scpConnectEntity.getTargetPath(), "0666");
      fis = new FileInputStream(file);

      byte[] buf = new byte[1024];
      int hasMore = fis.read(buf);

      while(hasMore != -1){
        scpo.write(buf);
        hasMore = fis.read(buf);
      }
    } catch (IOException e) {
      throw new IOException("SSH上傳文件至服務(wù)器出錯(cuò)"+e.getMessage());
    }finally {
      if(null != fis){
        try {
          fis.close();
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
      if(null != scpo){
        try {
          scpo.flush();
//          scpo.close();
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
      if(null != session){
        session.close();
      }
      if(null != connection){
        connection.close();
      }
    }
  }


  private boolean createDir(ScpConnectEntity scpConnectEntity ) throws JSchException {

    JSch jsch = new JSch();
    com.jcraft.jsch.Session sshSession = null;
    Channel channel= null;
    try {
      sshSession = jsch.getSession(scpConnectEntity.getUserName(), scpConnectEntity.getUrl(), 22);
      sshSession.setPassword(scpConnectEntity.getPassWord());
      sshSession.setConfig("StrictHostKeyChecking", "no");
      sshSession.connect();
      channel = sshSession.openChannel("sftp");
      channel.connect();
    } catch (JSchException e) {
      e.printStackTrace();
      throw new JSchException("SFTP連接服務(wù)器失敗"+e.getMessage());
    }
    ChannelSftp channelSftp=(ChannelSftp) channel;
    if (isDirExist(scpConnectEntity.getTargetPath(),channelSftp)) {
      channel.disconnect();
      channelSftp.disconnect();
      sshSession.disconnect();
      return true;
    }else {
      String pathArry[] = scpConnectEntity.getTargetPath().split("/");
      StringBuffer filePath=new StringBuffer("/");
      for (String path : pathArry) {
        if (path.equals("")) {
          continue;
        }
        filePath.append(path + "/");
        try {
          if (isDirExist(filePath.toString(),channelSftp)) {
            channelSftp.cd(filePath.toString());
          } else {
            // 建立目錄
            channelSftp.mkdir(filePath.toString());
            // 進(jìn)入并設(shè)置為當(dāng)前目錄
            channelSftp.cd(filePath.toString());
          }
        } catch (SftpException e) {
          e.printStackTrace();
          throw new JSchException("SFTP無(wú)法正常操作服務(wù)器"+e.getMessage());
        }
      }
    }
    channel.disconnect();
    channelSftp.disconnect();
    sshSession.disconnect();
    return true;
  }

  private boolean isDirExist(String directory,ChannelSftp channelSftp) {
    boolean isDirExistFlag = false;
    try {
      SftpATTRS sftpATTRS = channelSftp.lstat(directory);
      isDirExistFlag = true;
      return sftpATTRS.isDir();
    } catch (Exception e) {
      if (e.getMessage().toLowerCase().equals("no such file")) {
        isDirExistFlag = false;
      }
    }
    return isDirExistFlag;
  }
}