testtelnet.java

基于java的telnet功能实现。是用java编写的实现telnet功能的java源代码。

import java.io.IOException;
import java.io.InputStream;
import java.net.SocketException;
import java.net.SocketTimeoutException;
import java.util.Calendar;
import java.io.*;
import org.apache.commons.net.telnet.TelnetClient;


import com.teamsun.itcc.exception.BaseException;
import com.teamsun.itcc.net.SimpleTelnetClient.TimeOut;


public class TestTelnet {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		TelnetClient tc=new TelnetClient();
		try {
			tc.setDefaultTimeout(10000);
			tc.connect("10.3.7.21", 23);
			InputStream in=tc.getInputStream();
			OutputStream out=tc.getOutputStream();
			BufferedReader sin=new BufferedReader(new InputStreamReader(System.in));
			
			byte[] bs=new byte[256];
			int i=0;
			
				while((i=in.read(bs))>-1){
					String str=null;
					if(i==256){
						str=new String(bs);
					}else{
						byte[] bs2=new byte[i];
						for(int j=0;j<i;j++)
						{
							bs2[j]=bs[j];
						}
						str=new String(bs2);
					}

					System.out.println(str);
					String commond=null; 
					if(str.indexOf("ogin:")>-1||str.indexOf("assword:")>-1){
						commond = sin.readLine();
						out.write((commond+"\n").getBytes());   
						out.flush();
					}else{
						//out.write(( "\n").getBytes());           
					}
				}
				
		} catch (SocketException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
	

}