使用Ssh工具导入包后无法找到符号

Question

我正在使用java的ssh工具，并在导入包后不断收到错误。这段代码来自包中的一个例子。我已经将库添加到了我的项目库（netbeans）中，但是我在JSch的第一个声明中找不到符号，我在包扩展中看到该符号，但是仍然出现错误。有任何想法吗？？

/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */ 
import bin.src.com.jcraft.jsch.*; 
import java.awt.*; 
import javax.swing.*; 
import java.io.*; 

public class Exec{ 
    public static void main(String[] arg){ 
    try{ 
     JSch jsch=new JSch(); 

     String host=null; 
     if(arg.length>0){ 
     host=arg[0]; 
     } 
     else{ 
     host=JOptionPane.showInputDialog("Enter username@hostname", 
             System.getProperty("user.name")+ 
             "@localhost"); 
     } 
     String user=host.substring(0, host.indexOf('@')); 
     host=host.substring(host.indexOf('@')+1); 

     Session session=jsch.getSession(user, host, 22); 

     /* 
     String xhost="127.0.0.1"; 
     int xport=0; 
     String display=JOptionPane.showInputDialog("Enter display name", 
               xhost+":"+xport); 
     xhost=display.substring(0, display.indexOf(':')); 
     xport=Integer.parseInt(display.substring(display.indexOf(':')+1)); 
     session.setX11Host(xhost); 
     session.setX11Port(xport+6000); 
     */ 

     // username and password will be given via UserInfo interface. 
     UserInfo ui=new MyUserInfo(); 
     session.setUserInfo(ui); 
     session.connect(); 

     String command=JOptionPane.showInputDialog("Enter command", 
               "set|grep SSH"); 

     Channel channel=session.openChannel("exec"); 
     ((ChannelExec)channel).setCommand(command); 

     // X Forwarding 
     // channel.setXForwarding(true); 

     //channel.setInputStream(System.in); 
     channel.setInputStream(null); 

     //channel.setOutputStream(System.out); 

     //FileOutputStream fos=new FileOutputStream("/tmp/stderr"); 
     //((ChannelExec)channel).setErrStream(fos); 
     ((ChannelExec)channel).setErrStream(System.err); 

     InputStream in=channel.getInputStream(); 

     channel.connect(); 

     byte[] tmp=new byte[1024]; 
     while(true){ 
     while(in.available()>0){ 
      int i=in.read(tmp, 0, 1024); 
      if(i<0)break; 
      System.out.print(new String(tmp, 0, i)); 
     } 
     if(channel.isClosed()){ 
      System.out.println("exit-status: "+channel.getExitStatus()); 
      break; 
     } 
     try{Thread.sleep(1000);}catch(Exception ee){} 
     } 
     channel.disconnect(); 
     session.disconnect(); 
    } 
    catch(Exception e){ 
     System.out.println(e); 
    } 
    } 

    public static class MyUserInfo implements UserInfo, UIKeyboardInteractive{ 
    public String getPassword(){ return passwd; } 
    public boolean promptYesNo(String str){ 
     Object[] options={ "yes", "no" }; 
     int foo=JOptionPane.showOptionDialog(null, 
      str, 
      "Warning", 
      JOptionPane.DEFAULT_OPTION, 
      JOptionPane.WARNING_MESSAGE, 
      null, options, options[0]); 
     return foo==0; 
    } 

    String passwd; 
    JTextField passwordField=(JTextField)new JPasswordField(20); 

    public String getPassphrase(){ return null; } 
    public boolean promptPassphrase(String message){ return true; } 
    public boolean promptPassword(String message){ 
     Object[] ob={passwordField}; 
     int result= 
     JOptionPane.showConfirmDialog(null, ob, message, 
             JOptionPane.OK_CANCEL_OPTION); 
     if(result==JOptionPane.OK_OPTION){ 
     passwd=passwordField.getText(); 
     return true; 
     } 
     else{ 
     return false; 
     } 
    } 
    public void showMessage(String message){ 
     JOptionPane.showMessageDialog(null, message); 
    } 
    final GridBagConstraints gbc = 
     new GridBagConstraints(0,0,1,1,1,1, 
          GridBagConstraints.NORTHWEST, 
          GridBagConstraints.NONE, 
          new Insets(0,0,0,0),0,0); 
    private Container panel; 
    public String[] promptKeyboardInteractive(String destination, 
               String name, 
               String instruction, 
               String[] prompt, 
               boolean[] echo){ 
     panel = new JPanel(); 
     panel.setLayout(new GridBagLayout()); 

     gbc.weightx = 1.0; 
     gbc.gridwidth = GridBagConstraints.REMAINDER; 
     gbc.gridx = 0; 
     panel.add(new JLabel(instruction), gbc); 
     gbc.gridy++; 

     gbc.gridwidth = GridBagConstraints.RELATIVE; 

     JTextField[] texts=new JTextField[prompt.length]; 
     for(int i=0; i<prompt.length; i++){ 
     gbc.fill = GridBagConstraints.NONE; 
     gbc.gridx = 0; 
     gbc.weightx = 1; 
     panel.add(new JLabel(prompt[i]),gbc); 

     gbc.gridx = 1; 
     gbc.fill = GridBagConstraints.HORIZONTAL; 
     gbc.weighty = 1; 
     if(echo[i]){ 
      texts[i]=new JTextField(20); 
     } 
     else{ 
      texts[i]=new JPasswordField(20); 
     } 
     panel.add(texts[i], gbc); 
     gbc.gridy++; 
     } 

     if(JOptionPane.showConfirmDialog(null, panel, 
             destination+": "+name, 
             JOptionPane.OK_CANCEL_OPTION, 
             JOptionPane.QUESTION_MESSAGE) 
     ==JOptionPane.OK_OPTION){ 
     String[] response=new String[prompt.length]; 
     for(int i=0; i<prompt.length; i++){ 
      response[i]=texts[i].getText(); 
     } 
    return response; 
     } 
     else{ 
     return null; // cancel 
     } 
    } 
    } 
} 

Answer 1

应该import com.jcraft.jsch.*不import bin.src.com.jcraft.jsch.*;基于我看到here的代码。