我有两节课。一个用于运行程序，另一个用于作为 GUI。使用简单的 out.print 构建了第一个，但后来我意识到我需要将输出放在JTextArea控制台而不是控制台中。所以我为它整理了一个 gui，但我不知道是把 gui 放在我的跑步课上还是从跑步课上调用我的 gui。这是运行代码
import com.jcraft.jsch.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.JTextArea;
import java.util.Vector;
public class Sftp{
static JTextArea guiConsole = new JTextArea(10,10);
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);
int port=22;
Session session=jsch.getSession(user, host, port);
// username and password will be given via UserInfo interface.
UserInfo ui=new MyUserInfo();
session.setUserInfo(ui);
session.connect();
Channel channel=session.openChannel("sftp");
channel.connect();
ChannelSftp c=(ChannelSftp)channel;
java.io.InputStream in=System.in;
java.util.Vector<String> cmds=new java.util.Vector<String>();
byte[] buf=new byte[1024];
int i;
String str;
int level=0;
while(true){
guiConsole.append("sftp> ");
cmds.removeAllElements();
i=in.read(buf, 0, 1024);
if(i<=0)break;
i--;
if(i>0 && buf[i-1]==0x0d)i--;
//str=new String(buf, 0, i);
//guiConsole.append("|"+str+"|");
int s=0;
for(int ii=0; ii<i; ii++){
if(buf[ii]==' '){
if(ii-s>0){ cmds.addElement(new String(buf, s, ii-s)); }
while(ii<i){if(buf[ii]!=' ')break; ii++;}
s=ii;
}
}
if(s<i){ cmds.addElement(new String(buf, s, i-s)); }
if(cmds.size()==0)continue;
String cmd=cmds.elementAt(0);
if(cmd.equals("quit")){
c.quit();
break;
}
if(cmd.equals("exit")){
c.exit();
break;
}
if(cmd.equals("rekey")){
session.rekey();
continue;
}
if(cmd.equals("compression")){
if(cmds.size()<2){
guiConsole.append("compression level: "+level);
continue;
}
try{
level=Integer.parseInt(cmds.elementAt(1));
if(level==0){
session.setConfig("compression.s2c", "none");
session.setConfig("compression.c2s", "none");
}
else{
session.setConfig("compression.s2c", "zlib@openssh.com,zlib,none");
session.setConfig("compression.c2s", "zlib@openssh.com,zlib,none");
}
}
catch(Exception e){}
session.rekey();
continue;
}
if(cmd.equals("cd") || cmd.equals("lcd")){
if(cmds.size()<2) continue;
String path=cmds.elementAt(1);
try{
if(cmd.equals("cd")) c.cd(path);
else c.lcd(path);
}
catch(SftpException e){
guiConsole.append(e.toString());
}
continue;
}
if(cmd.equals("rm") || cmd.equals("rmdir") || cmd.equals("mkdir")){
if(cmds.size()<2) continue;
String path=cmds.elementAt(1);
try{
if(cmd.equals("rm")) c.rm(path);
else if(cmd.equals("rmdir")) c.rmdir(path);
else c.mkdir(path);
}
catch(SftpException e){
guiConsole.append(e.toString());
}
continue;
}
if(cmd.equals("chgrp") || cmd.equals("chown") || cmd.equals("chmod")){
if(cmds.size()!=3) continue;
String path=cmds.elementAt(2);
int foo=0;
if(cmd.equals("chmod")){
byte[] bar=cmds.elementAt(1).getBytes();
int k;
for(int j=0; j<bar.length; j++){
k=bar[j];
if(k<'0'||k>'7'){foo=-1; break;}
foo<<=3;
foo|=(k-'0');
}
if(foo==-1)continue;
}
else{
try{foo=Integer.parseInt(cmds.elementAt(1));}
catch(Exception e){continue;}
}
try{
if(cmd.equals("chgrp")){ c.chgrp(foo, path); }
else if(cmd.equals("chown")){ c.chown(foo, path); }
else if(cmd.equals("chmod")){ c.chmod(foo, path); }
}
catch(SftpException e){
guiConsole.append(e.toString());
}
continue;
}
if(cmd.equals("pwd") || cmd.equals("lpwd")){
str=(cmd.equals("pwd")?"Remote":"Local");
str+=" working directory: ";
if(cmd.equals("pwd")) str+=c.pwd();
else str+=c.lpwd();
guiConsole.append(str);
continue;
}
if(cmd.equals("ls") || cmd.equals("dir")){
String path=".";
if(cmds.size()==2) path=cmds.elementAt(1);
try{
Vector vv=c.ls(path);
if(vv!=null){
for(int ii=0; ii<vv.size(); ii++){
// guiConsole.appendln(vv.elementAt(ii).toString());
Object obj=vv.elementAt(ii);
if(obj instanceof com.jcraft.jsch.ChannelSftp.LsEntry){
guiConsole.append(((com.jcraft.jsch.ChannelSftp.LsEntry)obj).getLongname());
}
}
}
}
catch(SftpException e){
guiConsole.append(e.toString());
}
continue;
}
if(cmd.equals("lls") || cmd.equals("ldir")){
String path=".";
if(cmds.size()==2) path=cmds.elementAt(1);
try{
java.io.File file=new java.io.File(path);
if(!file.exists()){
guiConsole.append(path+": No such file or directory");
continue;
}
if(file.isDirectory()){
String[] list=file.list();
for(int ii=0; ii<list.length; ii++){
guiConsole.append(list[ii]);
}
continue;
}
guiConsole.append(path);
}
catch(Exception e){
guiConsole.append(e.toString());
}
continue;
}
if(cmd.equals("get") ||
cmd.equals("get-resume") || cmd.equals("get-append") ||
cmd.equals("put") ||
cmd.equals("put-resume") || cmd.equals("put-append")
){
if(cmds.size()!=2 && cmds.size()!=3) continue;
String p1=cmds.elementAt(1);
// String p2=p1;
String p2=".";
if(cmds.size()==3)p2=cmds.elementAt(2);
try{
SftpProgressMonitor monitor=new MyProgressMonitor();
if(cmd.startsWith("get")){
int mode=ChannelSftp.OVERWRITE;
if(cmd.equals("get-resume")){ mode=ChannelSftp.RESUME; }
else if(cmd.equals("get-append")){ mode=ChannelSftp.APPEND; }
c.get(p1, p2, monitor, mode);
}
else{
int mode=ChannelSftp.OVERWRITE;
if(cmd.equals("put-resume")){ mode=ChannelSftp.RESUME; }
else if(cmd.equals("put-append")){ mode=ChannelSftp.APPEND; }
c.put(p1, p2, monitor, mode);
}
}
catch(SftpException e){
guiConsole.append(e.toString());
}
continue;
}
if(cmd.equals("ln") || cmd.equals("symlink") || cmd.equals("rename")){
if(cmds.size()!=3) continue;
String p1=cmds.elementAt(1);
String p2=cmds.elementAt(2);
try{
if(cmd.equals("rename")) c.rename(p1, p2);
else c.symlink(p1, p2);
}
catch(SftpException e){
guiConsole.append(e.toString());
}
continue;
}
if(cmd.equals("stat") || cmd.equals("lstat")){
if(cmds.size()!=2) continue;
String p1=cmds.elementAt(1);
SftpATTRS attrs=null;
try{
if(cmd.equals("stat")) attrs=c.stat(p1);
else attrs=c.lstat(p1);
}
catch(SftpException e){
guiConsole.append(e.toString());
}
if(attrs!=null){
guiConsole.append(attrs.toString());
}
else{
}
continue;
}
if(cmd.equals("readlink")){
if(cmds.size()!=2) continue;
String p1=cmds.elementAt(1);
String filename=null;
try{
filename=c.readlink(p1);
guiConsole.append(filename);
}
catch(SftpException e){
guiConsole.append(e.toString());
}
continue;
}
if(cmd.equals("realpath")){
if(cmds.size()!=2) continue;
String p1=cmds.elementAt(1);
String filename=null;
try{
filename=c.realpath(p1);
guiConsole.append(filename);
}
catch(SftpException e){
guiConsole.append(e.toString());
}
continue;
}
if(cmd.equals("version")){
guiConsole.append("SFTP protocol version "+c.version());
continue;
}
if(cmd.equals("help") || cmd.equals("?")){
guiConsole.append(help);
continue;
}
guiConsole.append("unimplemented command: "+cmd);
}
session.disconnect();
}
catch(Exception e){
guiConsole.append(e.toString());
}
System.exit(0);
}
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
}
}
}
/*
public static class MyProgressMonitor implements com.jcraft.jsch.ProgressMonitor{
JProgressBar progressBar;
JFrame frame;
long count=0;
long max=0;
public void init(String info, long max){
this.max=max;
if(frame==null){
frame=new JFrame();
frame.setSize(200, 20);
progressBar = new JProgressBar();
}
count=0;
frame.setTitle(info);
progressBar.setMaximum((int)max);
progressBar.setMinimum((int)0);
progressBar.setValue((int)count);
progressBar.setStringPainted(true);
JPanel p=new JPanel();
p.add(progressBar);
frame.getContentPane().add(progressBar);
frame.setVisible(true);
System.guiConsole.appendln("!info:"+info+", max="+max+" "+progressBar);
}
public void count(long count){
this.count+=count;
System.guiConsole.appendln("count: "+count);
progressBar.setValue((int)this.count);
}
public void end(){
System.guiConsole.appendln("end");
progressBar.setValue((int)this.max);
frame.setVisible(false);
}
}
*/
public static class MyProgressMonitor implements SftpProgressMonitor{
ProgressMonitor monitor;
long count=0;
long max=0;
public void init(int op, String src, String dest, long max){
this.max=max;
monitor=new ProgressMonitor(null,
((op==SftpProgressMonitor.PUT)?
"put" : "get")+": "+src,
"", 0, (int)max);
count=0;
percent=-1;
monitor.setProgress((int)this.count);
monitor.setMillisToDecideToPopup(1000);
}
private long percent=-1;
public boolean count(long count){
this.count+=count;
if(percent>=this.count*100/max){ return true; }
percent=this.count*100/max;
monitor.setNote("Completed "+this.count+"("+percent+"%) out of "+max+".");
monitor.setProgress((int)this.count);
return !(monitor.isCanceled());
}
public void end(){
monitor.close();
}
}
private static String help =
" Available commands:\n"+
" * means unimplemented command.\n"+
"cd path Change remote directory to 'path'\n"+
"lcd path Change local directory to 'path'\n"+
"chgrp grp path Change group of file 'path' to 'grp'\n"+
"chmod mode path Change permissions of file 'path' to 'mode'\n"+
"chown own path Change owner of file 'path' to 'own'\n"+
"help Display this help text\n"+
"get remote-path [local-path] Download file\n"+
"get-resume remote-path [local-path] Resume to download file.\n"+
"get-append remote-path [local-path] Append remote file to local file\n"+
"*lls [ls-options [path]] Display local directory listing\n"+
"ln oldpath newpath Symlink remote file\n"+
"*lmkdir path Create local directory\n"+
"lpwd Print local working directory\n"+
"ls [path] Display remote directory listing\n"+
"*lumask umask Set local umask to 'umask'\n"+
"mkdir path Create remote directory\n"+
"put local-path [remote-path] Upload file\n"+
"put-resume local-path [remote-path] Resume to upload file\n"+
"put-append local-path [remote-path] Append local file to remote file.\n"+
"pwd Display remote working directory\n"+
"stat path Display info about path\n"+
"exit Quit sftp\n"+
"quit Quit sftp\n"+
"rename oldpath newpath Rename remote file\n"+
"rmdir path Remove remote directory\n"+
"rm path Delete remote file\n"+
"symlink oldpath newpath Symlink remote file\n"+
"readlink path Check the target of a symbolic link\n"+
"realpath path Canonicalize the path\n"+
"rekey Key re-exchanging\n"+
"compression level Packet compression will be enabled\n"+
"version Show SFTP version\n"+
"? Synonym for help";
}
这是gui。
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class CommandBox extends JPanel implements ActionListener {
protected JTextField textField;
protected JTextArea textArea;
private final static String newline = "\n";
public CommandBox() {
super(new GridBagLayout());
textField = new JTextField(20);
textField.addActionListener(this);
textArea = new JTextArea(5, 20);
textArea.setEditable(false);
JScrollPane scrollPane = new JScrollPane(textArea);
//Add Components to this panel.
GridBagConstraints c = new GridBagConstraints();
c.gridwidth = GridBagConstraints.REMAINDER;
c.fill = GridBagConstraints.HORIZONTAL;
add(textField, c);
c.fill = GridBagConstraints.BOTH;
c.weightx = 1.0;
c.weighty = 1.0;
add(scrollPane, c);
}
public void actionPerformed(ActionEvent evt) {
String text = textField.getText();
textArea.append(text + newline);
textField.selectAll();
//Make sure the new text is visible, even if there
//was a selection in the text area.
textArea.setCaretPosition(textArea.getDocument().getLength());
}
private static void createAndShowGUI() {
//Create and set up the window.
JFrame frame = new JFrame("VSI");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Add contents to the window.
frame.add(new CommandBox());
//Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
//Schedule a job for the event dispatch thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}
我的问题是你会怎么做。你是程序员，比我熟练得多，知识渊博。