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1 package examples; 2 3 /* ==================================================================== 4 * The Apache Software License, Version 1.1 5 * 6 * Copyright (c) 2001 The Apache Software Foundation. All rights 7 * reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. The end-user documentation included with the redistribution, 22 * if any, must include the following acknowledgment: 23 * "This product includes software developed by the 24 * Apache Software Foundation (http://www.apache.org/)." 25 * Alternately, this acknowledgment may appear in the software itself, 26 * if and wherever such third-party acknowledgments normally appear. 27 * 28 * 4. The names "Apache" and "Apache Software Foundation" and 29 * "Apache Commons" must not be used to endorse or promote products 30 * derived from this software without prior written permission. For 31 * written permission, please contact apache@apache.org. 32 * 33 * 5. Products derived from this software may not be called "Apache", 34 * nor may "Apache" appear in their name, without 35 * prior written permission of the Apache Software Foundation. 36 * 37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 48 * SUCH DAMAGE. 49 * ==================================================================== 50 * 51 * This software consists of voluntary contributions made by many 52 * individuals on behalf of the Apache Software Foundation. For more 53 * information on the Apache Software Foundation, please see 54 * <http://www.apache.org/>;. 55 */ 56 57 import java.io.IOException; 58 import org.apache.commons.net.telnet.TelnetClient; 59 60 /**** 61 * This is an example of a trivial use of the TelnetClient class. 62 * It connects to the weather server at the University of Michigan, 63 * um-weather.sprl.umich.edu port 3000, and allows the user to interact 64 * with the server via standard input. You could use this example to 65 * connect to any telnet server, but it is obviously not general purpose 66 * because it reads from standard input a line at a time, making it 67 * inconvenient for use with a remote interactive shell. The TelnetClient 68 * class used by itself is mostly intended for automating access to telnet 69 * resources rather than interactive use. 70 * <p> 71 ***/ 72 73 // This class requires the IOUtil support class! 74 public final class weatherTelnet 75 { 76 77 public final static void main(String[] args) 78 { 79 TelnetClient telnet; 80 81 telnet = new TelnetClient(); 82 83 try 84 { 85 telnet.connect("rainmaker.wunderground.com", 3000); 86 } 87 catch (IOException e) 88 { 89 e.printStackTrace(); 90 System.exit(1); 91 } 92 93 IOUtil.readWrite(telnet.getInputStream(), telnet.getOutputStream(), 94 System.in, System.out); 95 96 try 97 { 98 telnet.disconnect(); 99 } 100 catch (IOException e) 101 { 102 e.printStackTrace(); 103 System.exit(1); 104 } 105 106 System.exit(0); 107 } 108 109 } 110 111

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