基于开源ssh Ganymed 的ssh远程连接工具（共同讨论版）

基于开源ssh Ganymed 的ssh远程连接工具（共同讨论版）

本工具模仿putty 实现了简单的ssh 远程交互功能。
本工具可嵌入到集群管理工具
目前尚在探索，错误之处欢迎指正

主干代码如下 转载注明:http://www.blogjava.net/roymoro/archive/2012/08/12/385318.html

  1 package  cn.edu.neu.neuInfo.until.shell;
  2
  3 import  java.io.BufferedReader;
  4 import  java.io.IOException;
  5 import  java.io.InputStream;
  6 import  java.io.InputStreamReader;
  7 import  java.io.OutputStream;
  8 import  java.io.OutputStreamWriter;
  9 import  java.io.PrintStream;
 10 import  java.io.PrintWriter;
 11 import  java.io.UnsupportedEncodingException;
 12 import  java.util.Scanner;
 13
 14 import  javax.swing.JTextArea;
 15
 16
 17
 18 import  ch.ethz.ssh2.ChannelCondition;
 19 import  ch.ethz.ssh2.Connection;
 20 import  ch.ethz.ssh2.ConnectionInfo;
 21 import  ch.ethz.ssh2.Session;
 22
 23 public   class  LinuxFSTool  {
 24     private static Connection con; 
 25     private static Session session;
 26    private static PrintWriter out;
 27     static ReadThread rt;
 28    static ReadThread rt2;
 29    static OutputStream outStream;
 30    private static String address,username,password;
 31     private static NeuInfoConfigration neuInfoConfig=NeuInfoConfigration.getInstance("linuxTool.properties");
 32    
 33     public static boolean setConnect(String username,String password,String address) throws IOException{
 34         LinuxFSTool.address=address;
 35         LinuxFSTool.username=username;
 36         LinuxFSTool.password=password;
 37        return connectFS();
 38     }
 39     public static boolean isconnected()
 40     {
 41         if(con==null) return false;
 42         return true;
 43     }
 44     public static boolean connectFS() throws IOException{
 45        if(address==null||address.equals(""))
 46         address=neuInfoConfig.getvalue(Parameters.Linux_ADDRESS.name);
 47        if(username==null||username.equals(""))
 48         username=neuInfoConfig.getvalue(Parameters.Linux_USERNAME.name);
 49        if(password==null||password.equals(""))
 50        password=neuInfoConfig.getvalue(Parameters.Linux_PASSWORD.name);
 51        System.out.println(address+":"+username+":"+password);
 52          con = new Connection(address);
 53         ConnectionInfo info = con.connect();
 54         //System.out.println(info.serverHostKey);
 55         boolean result = con.authenticateWithPassword(username, password);
 56         if(result==false){ con.close();con=null;}
 57         return result;
 58    }
 59    public static void disconnectFS() throws IOException{
 60        if(rt.isAlive()){
 61            rt.stopThread();
 62        }
 63        if(rt2.isAlive()){
 64            rt2.stopThread();
 65        }
 66        session.close();
 67        con.close();
 68        session=null;
 69        con=null;
 70    }
 71    private static void shellRun(OutputStream outStream,JTextArea jta){
 72        LinuxFSTool.outStream=outStream;
 73        try{
 74            if(con==null) connectFS();//如果未连接 则连接
 75         session = con.openSession();
 76        session.requestPTY("bash");
 77        session.startShell();
 78        InputStream in=session.getStdout();
 79         rt=new ReadThread(in,new PrintStream(outStream),jta);
 80        rt2=new ReadThread(session.getStderr(),new PrintStream(outStream),jta);
 81        rt.start();  
 82        rt2.start();
 83        out = new PrintWriter(new OutputStreamWriter(session.getStdin(),"UTF-8"));
 84    } catch (Exception ex) {
 85        System.out.println(ex.getLocalizedMessage());
 86        ex.printStackTrace();
 87    }
 88    }
 89    public static void executeCommand(String command){
 90        executeCommand(command,System.out,null);
 91    }
 92    /** *//**
 93     *  use these instead of {@link LinuxFSTool#executeCommand(String)}
 94     * @param command
 95     * @param outStream
 96     */
 97    public static void executeCommand(String command,OutputStream outStream,JTextArea jta){  
 98                
 99            if(session==null)
100                shellRun(outStream,jta);
101            if(!command.equals("")) {
102            out.println(command);}
103            out.flush();
104            if(command.endsWith("bye")){ 
105                closeShell();
106                }
107            
108                   // System.out.println(session.getExitStatus());
109                   
110    }
111    private static void closeShell(){
112        session.close();
113        session.waitForCondition(ChannelCondition.CLOSED | ChannelCondition.EOF | ChannelCondition.EXIT_STATUS, 30000);
114        //StringBuilder sb=new StringBuilder();\
115        System.out.println("byebye");
116    }
117    /** *//**
118     * test
119     * @param args
120     * @throws IOException 
121     */
122    public static void main(String[] args) throws IOException {
123        Scanner scan=new Scanner(System.in);
124        while(scan.hasNext()){
125        LinuxFSTool.executeCommand(scan.nextLine(), System.out,null);
126        }
127        
128    }
129}
130
131 class  ReadThread  extends  Thread {
132    private InputStream in;//输入流
133    private PrintStream out;
134    private String charset;
135    private JTextArea jta;
136    private boolean flag=true;
137    public void stopThread(){
138        flag=false;
139    }
140    public ReadThread(InputStream in,PrintStream out,String charset) {
141        this.out=out;
142        this.in = in;
143        this.charset=charset;
144    }
145    public ReadThread(InputStream in,PrintStream out,JTextArea jta,String charset) {
146        this.out=out;
147        this.jta=jta;
148        this.in = in;
149        this.charset=charset;
150    }
151    public ReadThread(InputStream in,PrintStream out,JTextArea jta) {
152        this(in, out, jta, "utf-8");
153    }
154    public ReadThread(InputStream in,PrintStream out) {
155    this(in,out,"utf-8");
156        
157    }
158    public ReadThread(InputStream in,String charset) {
159        this(in,System.out,charset);
160    
161    }
162    
163    public ReadThread(InputStream in){
164        this(in, "utf-8");
165    }
166    
167    @Override
168    public void run() {
169        BufferedReader br;
170        try {
171            br = new BufferedReader(new InputStreamReader(in,charset));
172        
173         String temp;
174           
175                while((temp=br.readLine())!=null&&flag==true){
176        // while(br.ready()&&flag==true){//
177            // temp=br.readLine();
178                    if(out!=null)
179                    {    out.println(temp);
180                    out.flush();}
181                    if(jta!=null){
182                        jta.setText(jta.getText()+temp+"\n");
183                    }
184                }
185                
186    } catch (UnsupportedEncodingException e1) {
187        // TODO Auto-generated catch block
188        e1.printStackTrace();
189    } catch (IOException e) {
190        // TODO Auto-generated catch block
191        e.printStackTrace();
192    }}
193    
194}
195

目前本工具存在如下问题：
当输入例如 rm wenjian时 ，由于正常的ssh 会返回是否删除确认，初步分析 由于Ganymed 对返回消息的阻塞，本程序 是否删除某文件显示不出来。只有在下一次命令输入时才返回 是否删除某文件 ？新打入的命令。eclipse项目包，见附件。望大神，大叔，大婶指导。
其余bug 也欢迎指导，本文仅供参考，不足之处多有谅解，转帖请注明地址。

 

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