JSch断开按钮

Question

在断开连接按钮上，我尝试了：

relivant按钮代码的当前部分

private void jButtonDisconnectActionPerformed(java.awt.event.ActionEvent evt) {                                                  
    this.channel.disconnect();
    this.session.disconnect(); 

}

 private void WinConnect(){
  String SshPortNumb = (String)SshPort.getSelectedItem();
  int SshPortNum = Integer.parseInt(SshPortNumb);
  String PcIpNum = (String)PcIp.getText();
  String host = (String)SiteIp.getText();
  String VncPortNumb = VncPort.getText();
  int VncPortNum = Integer.parseInt(VncPortNumb);
  String user = (String)UserName.getText();
  String PasswordVal = (String)Password.getText();
  String VncPathpre = VncPath.getText();
  String VncPathdat = "\""+VncPathpre+"\"";

try{
  JSch jsch=new JSch();

  jsch.setKnownHosts("known_hosts");


  this.session=jsch.getSession(user, host, SshPortNum);

  String passwd = PasswordVal;
  this.session.setPassword(passwd);

  UserInfo ui = new MyUserInfo(){
    public void showMessage(String message){
      JOptionPane.showMessageDialog(null, message);
    }
    public boolean promptYesNo(String message){
      Object[] options={ "yes", "no" };
      int foo=JOptionPane.showOptionDialog(null, 
                                           message,
                                           "Warning", 
                                           JOptionPane.DEFAULT_OPTION, 
                                           JOptionPane.WARNING_MESSAGE,
                                           null, options, options[0]);
      return foo==0;
    }

  };
jButtonDisconnect.setEnabled(true);
jButtonConnect.setEnabled(false);
  this.session.setUserInfo(ui);

  this.session.connect(30000);  

  this.session.setPortForwardingL(7051, PcIpNum, VncPortNum);

  this.channel=session.openChannel("shell");

  this.channel.setInputStream(System.in);

  this.channel.setOutputStream(System.out);

  this.channel.connect(3*1000);

}
catch(Exception e){
  System.out.println(e);
}    

}

public class RemoteDesktop extends javax.swing.JFrame {
private Session session;
private Channel channel;

编辑：猜是因为varible会话在winconnect中，而不是在按钮中，所以找不到它？

Edit2:尝试下面的建议后，单击断开连接就会锁定

Edit5:如果调用session.disconnect确实有效，则选中此选项，但由于某种原因，它会导致我的程序锁定

Answer 1

因为你只是发布了一段源代码，我只能猜测。根据错误消息，方法.addActionListener()创建了一个自己的变量范围。所以你不能访问父母的上下文。

尝试将变量session session移动到全局范围，如下所示：

public class YourJavaClass
{
  private Session session;

  public static void main()
  {
    ...
  }

  private void connect(String location)
  {
   try
   {
     JSch jsch=new JSch();

     jsch.setKnownHosts(location);

     this.session=jsch.getSession(user, host, SshPortNum);

     String passwd = PasswordVal;
     this.session.setPassword(passwd);
     this.session.connect(30000);  

     session.setPortForwardingL(7051, PcIpNum, VncPortNum);
  }

  private void yourGuiMethod()
  {
   ...
   jButtonDisconnect.addActionListener(new ActionListener()
   {
     public void jButtonDisconnectActionPerformed(java.awt.event.ActionEvent evt)
     {
        this.session.disconnect();
     }
   });  
   ...
  }
}

如果你愿意，你可以否决我的答案。不过请记住，目前您还没有发布足够的源代码。所以我只能猜测。