/** *@date 2015年2月4日 下午3:15:13 *@author XUQIANG *@filename TelnetConnection.java *@package com.merit.monitor.device.parameter.sdk */package com.merit.monitor.device.parameter.sdk;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.PrintStream;import java.net.SocketException;import org.apache.commons.net.telnet.TelnetClient;import com.merit.monitor.device.parameter.logs.ILog;import com.merit.monitor.device.parameter.logs.LogImpl;/** * @author XUQIANG * */public class TelnetConnection { private static ILog log = new LogImpl(); private TelnetClient telnet = null; // private String username = ""; private String password = ""; private String prompt = "#"; private InputStream in; private PrintStream out; public TelnetConnection(String host, int port) { if(telnet == null) { telnet = new TelnetClient(); try { telnet.connect(host, port); in = telnet.getInputStream(); out = new PrintStream(telnet.getOutputStream()); } catch (SocketException e) { log.logForException(TelnetConnection.class, e.getMessage()); } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } } } /** * @return the prompt */ public String getPrompt() { return prompt; } /** * @param prompt the prompt to set */ public void setPrompt(String prompt) { this.prompt = prompt; } /** * 关闭打开的连接 * @param telnet */ public void close(TelnetClient telnet) { if(telnet != null) { try { telnet.disconnect(); } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } } if(this.telnet != null) { try { this.telnet.disconnect(); } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } } } /** * 登录到远程机器中 */ public void login(String username, String password, String prompt) { //处理命令行的提示字符 if(prompt == null || "".equals(prompt)) { if(this.prompt.equals("#")) prompt = ("root".equals(username)) ? "#" : "$"; } else { this.prompt = prompt; } this.password = password; readUntil("Username:"); write(username); readUntil("Password:"); write(this.password); readUntil(this.prompt + ""); // 其它交换机登录后如果有提示信息也需要添加 if(this.prompt.indexOf("Quidway") != -1) readUntil("login"); } /** * 读取分析结果 * * @param pattern * @return */ public String readUntil(String pattern) { StringBuffer sb = new StringBuffer(); try { int len = 0; while((len = in.read()) != -1) { sb.append((char)len); if(sb.toString().endsWith(pattern)) { return sb.toString(); } } } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } return ""; } /** * 写操作 * * @param value */ public void write(String value) { try { out.println(value); out.flush(); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } } /** * 向目标发送命令字符串 * * @param command * @return */ public String sendCommand(String command) { try { write(command); return readUntil(prompt + ""); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } return ""; } /** * 关闭连接 */ public void disconnect() { try { telnet.disconnect(); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } }}
Junit
@Test public void testTelnet() { try { System.out.println("启动Telnet..."); String ip = "191.168.*.*"; int port = 23; String user = "admin"; String password = "****"; TelnetConnection telnet = new TelnetConnection(ip, port); telnet.setPrompt(""); telnet.login(user, password, ""); telnet.setPrompt("[Quidway]"); String r1 = telnet.sendCommand("system-view");//display snmp-agent local-engineid telnet.setPrompt("[Quidway-Ethernet1/0/5]"); String r2 = telnet.sendCommand("interface Ethernet1/0/5"); String r3 = telnet.sendCommand("undo shutdown"); System.out.println("显示结果"); System.out.println(r1); System.out.println(r2); System.out.println(r3); System.out.println((r3.indexOf(telnet.getPrompt()) != -1) && r3.indexOf("^") == -1); telnet.disconnect(); } catch (Exception e) { e.printStackTrace(); } }
改进后的实现:
登录到远程机器中
说明:在登录前,先确认输入用户名的提示符,如果不是Username:,需要设置该值,使用setUsernamePrompt(prompt);
第二,确认输入密码时的提示符,如果不是Password:,需要设置该值,使用setPasswordPrompt(prompt);
第三,确认登录后查看是否有登录后的提示信息:如:%Apr 17 04:26:32:256 2000 Quidway SHELL/5/LOGIN:- 1 - admin(191.168.2.227) in unit1 login
如果末尾不是login,需要指定最后一个单词,使用setLoginPrompt(prompt)。
如果没有登录提示,设置setLoginPrompt(null);
第四,执行命令时,如果提示符不是 #、$、>、]中的一个,也需要指定最后一个符号,使用setPrompt(prompt).
/** *@date 2015年2月4日 下午3:15:13 *@author XUQIANG *@filename TelnetConnection.java *@package com.merit.monitor.device.parameter.sdk */package com.meritit.product.eism.telnet.sdk;import java.io.IOException;import java.io.InputStream;import java.io.PrintStream;import java.net.SocketException;import org.apache.commons.net.telnet.TelnetClient;import com.meritit.product.eism.telnet.log.ILog;import com.meritit.product.eism.telnet.log.LogImpl;/** * @author XUQIANG * */public class TelnetConnection { private static ILog log = new LogImpl(); private TelnetClient telnet = null; private String prompt = "#$>]"; private String loginPrompt = "login"; private String usernamePrompt = "Username:"; private String passwordPrompt = "Password:"; private InputStream in; private PrintStream out; public TelnetConnection(String host, int port) { if(telnet == null) { telnet = new TelnetClient(); try { telnet.connect(host, port); in = telnet.getInputStream(); out = new PrintStream(telnet.getOutputStream()); } catch (SocketException e) { log.logForException(TelnetConnection.class, e.getMessage()); } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } } } /** * 登录到远程机器中 * 说明:在登录前,先确认输入用户名的提示符,如果不是Username:,需要设置该值,使用setUsernamePrompt(prompt); * 第二,确认输入密码时的提示符,如果不是Password:,需要设置该值,使用setPasswordPrompt(prompt); * 第三,确认登录后查看是否有登录后的提示信息:如:%Apr 17 04:26:32:256 2000 Quidway SHELL/5/LOGIN:- 1 - admin(191.168.2.227) in unit1 login * 如果末尾不是login,需要指定最后一个单词,使用setLoginPrompt(prompt)。 如果没有登录提示,设置setLoginPrompt(null); * 第四,执行命令时,如果提示符不是 #、$、>、]中的一个,也需要指定最后一个符号,使用setPrompt(prompt). */ public void login(String username, String password, String prompt) { //处理命令行的提示字符 if(prompt != null && !"".equals(prompt)) { this.prompt = prompt; } readUntil(this.usernamePrompt); write(username); readUntil(this.passwordPrompt); write(password); readUntil(this.prompt); if(this.loginPrompt != null) readUntil(this.loginPrompt); } /** * 读取分析结果 * * @param pattern * @return */ public String readUntil(String pattern) { StringBuffer sb = new StringBuffer(); try { int len = 0; while((len = in.read()) != -1) { sb.append((char)len); if(pattern.indexOf((char)len) != -1 || sb.toString().endsWith(pattern)) { return sb.toString(); } } } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } return ""; } /** * 写操作 * * @param value */ public void write(String value) { try { out.println(value); out.flush(); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } } /** * 向目标发送命令字符串 * * @param command * @return */ public String sendCommand(String command) { try { write(command); return readUntil(prompt + ""); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } return ""; } /** * 关闭连接 */ public void disconnect() { try { telnet.disconnect(); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } } /** * @return the prompt */ public String getPrompt() { return prompt; } /** * @param prompt the prompt to set */ public void setPrompt(String prompt) { this.prompt = prompt; } /** * @return the usernamePrompt */ public String getUsernamePrompt() { return usernamePrompt; } /** * @param usernamePrompt the usernamePrompt to set */ public void setUsernamePrompt(String usernamePrompt) { this.usernamePrompt = usernamePrompt; } /** * @return the passwordPrompt */ public String getPasswordPrompt() { return passwordPrompt; } /** * @param passwordPrompt the passwordPrompt to set */ public void setPasswordPrompt(String passwordPrompt) { this.passwordPrompt = passwordPrompt; } /** * @return the loginPrompt */ public String getLoginPrompt() { return loginPrompt; } /** * @param loginPrompt the loginPrompt to set */ public void setLoginPrompt(String loginPrompt) { this.loginPrompt = loginPrompt; } /** * 关闭打开的连接 * @param telnet */ public void close(TelnetClient telnet) { if(telnet != null) { try { telnet.disconnect(); } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } } if(this.telnet != null) { try { this.telnet.disconnect(); } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } } } }
=====================================================================
添加了telnet tab键命令补全功能。
简单记录一下:
单击tab键时,将命令和\t符号一同发送到交换机中,但是不执行命令,所以就不能使用out.println().只能使用out.print().
连续tab键时,需要向服务器发送的命令是,与上次命令不同的地方。就是把上次相同的命令字符要去掉。
例如:
第一次tab时执行: int
发送命令为: int\t
执行程序为:out.print("int\t");
返回值为:interface
第二次tab时执行: interface e
发送命令为:e\t
执行程序为:out.print("e\t");
返回值为:interface Ethernet
第三次按回车是执行:interface Ethernet 1/0/5
发送命令: 1/0/5 说明:1/0/5前面有个空格
执行程序为:out.println(" 1/0/5");
返回结果为:[Quidway-Ethernet1/0/5] 说明:只有提示符。
源程序如下:
/** *@date 2015年3月19日 下午3:15:13 *@author XUQIANG *@filename TelnetConnection.java *@package com.merit.monitor.device.parameter.sdk */package com.meritit.product.eism.telnet.sdk;import java.io.IOException;import java.io.InputStream;import java.io.PrintStream;import java.net.SocketException;import org.apache.commons.net.telnet.TelnetClient;import com.meritit.product.eism.telnet.log.ILog;import com.meritit.product.eism.telnet.log.LogImpl;/** * @author XUQIANG * */public class TelnetConnection { private static ILog log = new LogImpl(); private TelnetClient telnet = null; private String prompt = "#$>]"; private String loginPrompt = "login"; private String usernamePrompt = "Username:"; private String passwordPrompt = "Password:"; private InputStream in; private PrintStream out; public TelnetConnection(String host, int port) { if(telnet == null) { telnet = new TelnetClient(); try { telnet.connect(host, port); in = telnet.getInputStream(); out = new PrintStream(telnet.getOutputStream()); } catch (SocketException e) { log.logForException(TelnetConnection.class, e.getMessage()); } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } } } /** * 登录到远程机器中 * 说明:在登录前,先确认输入用户名的提示符,如果不是Username:,需要设置该值,使用setUsernamePrompt(prompt); * 第二,确认输入密码时的提示符,如果不是Password:,需要设置该值,使用setPasswordPrompt(prompt); * 第三,确认登录后查看是否有登录后的提示信息:如:%Apr 17 04:26:32:256 2000 Quidway SHELL/5/LOGIN:- 1 - admin(191.168.2.227) in unit1 login * 如果末尾不是login,需要指定最后一个单词,使用setLoginPrompt(prompt). * 如果没有登录提示,设置setLoginPrompt(null); * 第四,执行命令时,如果提示符不是 #、$、>、]中的一个,也需要指定最后一个符号,使用setPrompt(prompt). */ public void login(String username, String password, String prompt) { loginForWin(username, password, prompt); } public String loginForWin(String username, String password, String prompt) { //处理命令行的提示字符 if(prompt != null && !"".equals(prompt)) { this.prompt = prompt; } String result = ""; readUntil(this.usernamePrompt); write(username); readUntil(this.passwordPrompt); write(password); result = readUntil(this.prompt); if(this.loginPrompt != null) result += readUntil(this.loginPrompt); return result; } /** * 读取分析结果 * * @param pattern * @return */ private String readUntil(String pattern) { StringBuffer sb = new StringBuffer(); try { int len = 0; while((len = in.read()) != -1) { char ch = (char)len; sb.append(ch); if(pattern.indexOf(ch) != -1 || sb.toString().endsWith(pattern)) { return sb.toString(); } } } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } return ""; } /** * tab提示 命令补全 * @return */ private String readUntil() { StringBuffer sb = new StringBuffer(); boolean flag = false; try { int len = 0; int i = 0; Thread.sleep(500); int count = in.available();// System.out.println(count); while((len = in.read()) != -1) { i++; char ch = (char)len; sb.append(ch);// System.out.print(ch); if(prompt.indexOf(ch) != -1) { flag = true; } if(flag && i == count) { return sb.toString(); } } } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println(sb.toString()); return sb.toString(); } /** * 写操作 * * @param value */ private void write(String value) { try { out.println(value); out.flush(); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } } /** * 写操作 * * @param value */ private void writeTab(String value) { try {// out.println(); out.print(value); out.flush(); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } } /** * 向目标发送命令字符串 * * @param command * @return */ public String sendCommand(String command) { try { write(command); return readUntil(prompt + ""); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } return ""; } /** * 向目标发送命令字符串 * * @param command * @return */ public String sendCommand(String command, boolean prom) { if(prom && command.indexOf("\t") == -1) command += "\t"; try { writeTab(command); return readUntil(); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } return ""; } /** * 关闭连接 */ public void disconnect() { try { telnet.disconnect(); } catch (Exception e) { log.logForException(TelnetConnection.class, e.getMessage()); } } /** * @return the prompt */ public String getPrompt() { return prompt; } /** * @param prompt the prompt to set */ public void setPrompt(String prompt) { this.prompt = prompt; } /** * @return the usernamePrompt */ public String getUsernamePrompt() { return usernamePrompt; } /** * @param usernamePrompt the usernamePrompt to set */ public void setUsernamePrompt(String usernamePrompt) { this.usernamePrompt = usernamePrompt; } /** * @return the passwordPrompt */ public String getPasswordPrompt() { return passwordPrompt; } /** * @param passwordPrompt the passwordPrompt to set */ public void setPasswordPrompt(String passwordPrompt) { this.passwordPrompt = passwordPrompt; } /** * @return the loginPrompt */ public String getLoginPrompt() { return loginPrompt; } /** * @param loginPrompt the loginPrompt to set */ public void setLoginPrompt(String loginPrompt) { this.loginPrompt = loginPrompt; } /** * 关闭打开的连接 * @param telnet */ public void close(TelnetClient telnet) { if(telnet != null) { try { telnet.disconnect(); telnet = null; } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } } if(this.telnet != null) { try { this.telnet.disconnect(); this.telnet = null; } catch (IOException e) { log.logForException(TelnetConnection.class, e.getMessage()); } } } }