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Je suis en train d'écrire une applet Java pour simuler une connexion SSH à la machine Ubuntu, j'ai mis en place la connexion, l'exécution de la commande, et la réponse, tout va bien. Cependant, j'ai eu un petit problème ici, je veux recevoir la réponse du socket serveur en temps réel, donc je peux simuler sur Applet en temps réel, mais il semble que je reçois la réponse tant que la commande est terminée. Par exemple, j'ai un fichier tcl de test, je laisse l'excution dormir 5 secondes entre chaque déclaration, je devrais utiliser la réponse sur l'applet toutes les 5 secondes, au lieu de recevoir toute la réponse à la fin. Des pensées?Java Socket lu à partir de la socket en temps réel
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/*
* ssh_applet.java
*
* Created on 9-Dec-2010, 11:10:06 AM
*/
/**
*
* @author xzhang
*/
//import javax.swing.*;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.InputStreamReader;
import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.Session;
import ch.ethz.ssh2.StreamGobbler;
import javax.swing.*;
public class ssh_applet extends javax.swing.JApplet{
private String host_name = null;
private String user_name = null;
private String pass_word = null;
private Connection app_conn;
private Session app_session;
/** Initializes the applet ssh_applet */
public void init() {
try {
java.awt.EventQueue.invokeAndWait(new Runnable() {
public void run() {
initComponents();
}
});
} catch (Exception ex) {
ex.printStackTrace();
}
}
/** This method is called from within the init() method to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
ssh_input = new javax.swing.JPanel();
connect = new javax.swing.JButton();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
hostname = new javax.swing.JTextField();
username = new javax.swing.JTextField();
password = new javax.swing.JPasswordField();
ssh_command = new javax.swing.JTextField();
ssh_output_pannel = new javax.swing.JPanel();
jScrollPane1 = new javax.swing.JScrollPane();
ssh_output = new javax.swing.JTextArea();
clear_text = new javax.swing.JButton();
connect.setText("Connect");
connect.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
connectActionPerformed(evt);
}
});
jLabel1.setText("Host Name");
jLabel2.setText("User Name");
jLabel3.setText("Password");
hostname.setText("10.4.0.135");
username.setText("xzhang");
password.setText("Samboapple0827!");
ssh_command.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
ssh_commandActionPerformed(evt);
}
});
javax.swing.GroupLayout ssh_inputLayout = new javax.swing.GroupLayout(ssh_input);
ssh_input.setLayout(ssh_inputLayout);
ssh_inputLayout.setHorizontalGroup(
ssh_inputLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(ssh_inputLayout.createSequentialGroup()
.addContainerGap()
.addGroup(ssh_inputLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1)
.addGroup(ssh_inputLayout.createSequentialGroup()
.addGroup(ssh_inputLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(jLabel3))
.addGap(18, 18, 18)
.addGroup(ssh_inputLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(username, javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(password)
.addComponent(hostname, javax.swing.GroupLayout.PREFERRED_SIZE, 122, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGroup(ssh_inputLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(ssh_inputLayout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(connect))
.addGroup(ssh_inputLayout.createSequentialGroup()
.addGap(49, 49, 49)
.addComponent(ssh_command, javax.swing.GroupLayout.PREFERRED_SIZE, 300, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(60, Short.MAX_VALUE))
);
ssh_inputLayout.setVerticalGroup(
ssh_inputLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(ssh_inputLayout.createSequentialGroup()
.addGap(14, 14, 14)
.addGroup(ssh_inputLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1)
.addComponent(hostname, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(connect))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(ssh_inputLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(username, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(ssh_inputLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(password, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(ssh_command, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(18, Short.MAX_VALUE))
);
ssh_output.setColumns(20);
ssh_output.setEditable(false);
ssh_output.setLineWrap(true);
ssh_output.setRows(5);
jScrollPane1.setViewportView(ssh_output);
clear_text.setText("Clear");
clear_text.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
clear_textActionPerformed(evt);
}
});
javax.swing.GroupLayout ssh_output_pannelLayout = new javax.swing.GroupLayout(ssh_output_pannel);
ssh_output_pannel.setLayout(ssh_output_pannelLayout);
ssh_output_pannelLayout.setHorizontalGroup(
ssh_output_pannelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(ssh_output_pannelLayout.createSequentialGroup()
.addContainerGap()
.addGroup(ssh_output_pannelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 591, Short.MAX_VALUE)
.addComponent(clear_text, javax.swing.GroupLayout.Alignment.TRAILING))
.addContainerGap())
);
ssh_output_pannelLayout.setVerticalGroup(
ssh_output_pannelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(ssh_output_pannelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 371, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(clear_text)
.addContainerGap())
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(ssh_input, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(ssh_output_pannel, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(ssh_input, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(ssh_output_pannel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
}// </editor-fold>
private void connectActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
/*get host_name*/
host_name=hostname.getText();
user_name=username.getText();
pass_word=password.getText();
/* Create a connection instance */
app_conn=new Connection(host_name);
try
{
app_conn.connect();
/* Authenticate.
* If you get an IOException saying something like
* "Authentication method password not supported by the server at this stage."
* then please check the FAQ.
*/
boolean isAuthenticated = app_conn.authenticateWithPassword(user_name, pass_word);
if (isAuthenticated == false)
throw new IOException("Authentication failed.");
JOptionPane.showMessageDialog(null, "You are connected to host "+host_name, "Connection",
JOptionPane.INFORMATION_MESSAGE);
/* Create a session */
}
catch(IOException e)
{}
}
private void ssh_commandActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String command=ssh_command.getText();
try
{
app_session=app_conn.openSession();
app_session.execCommand(command);
InputStream stdout = new StreamGobbler(app_session.getStdout());
BufferedReader br = new BufferedReader(new InputStreamReader(stdout));
String line ;
while((line= br.readLine()) != null)
{
ssh_output.append(line + "\n");
//line = br.readLine();
}
// DEBUG: dump the exit code
System.out.println("ExitCode: " + app_session.getExitStatus());
// Close the session
app_session.close();
}
catch(Exception e)
{}
}
private void clear_textActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
ssh_output.setText("");
}
// Variables declaration - do not modify
private javax.swing.JButton clear_text;
private javax.swing.JButton connect;
private javax.swing.JTextField hostname;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JPasswordField password;
private javax.swing.JTextField ssh_command;
private javax.swing.JPanel ssh_input;
private javax.swing.JTextArea ssh_output;
private javax.swing.JPanel ssh_output_pannel;
private javax.swing.JTextField username;
// End of variables declaration
}
Voici mon code, j'utilise la bibliothèque Ganymed-SSH2, ne peut pas obtenir où rincer
en fait, pour ** écrire ** it. – thejh
même concept pour l'écrire n'est ce pas? Il s'agit simplement d'une sortie tamponnée qui n'aime pas toujours écrire quand vous en avez besoin. –