code: public void init(String sshHost, int sshPort, String sshUser, String sshPass, Charset charset) {
  		this.host = sshHost;
  		this.port = sshPort;
  		this.user = sshUser;
  		this.password = sshPass;
  		init(JschUtil.getSession(sshHost, sshPort, sshUser, sshPass), charset);
  	}
docs: 构造
  
  @param sshHost 远程主机
  @param sshPort 远程主机端口
  @param sshUser 远程主机用户名
  @param sshPass 远程主机密码
  @param charset 编码