java与cmd命令窗口交互

package test;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;

public class Test1 {

	public static void main(String[] args) {  

        try {  
            Process process = Runtime.getRuntime().exec("cmd");  //cmd /c start 可以打开另一个窗口
            PrintWriter writer = new PrintWriter(process.getOutputStream());  
            new CommandThread(writer).start();  
            BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));  

            String s = null;  
            while ((s = br.readLine()) != null) {  
                System.out.println(s);  
            }  
            Thread.currentThread().interrupt();  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  

    }  

    static class CommandThread extends Thread{  
        PrintWriter writer;  
        BufferedReader br = null;  
        CommandThread(PrintWriter writer){  
            this.writer = writer;  
            br = new BufferedReader(new InputStreamReader(System.in));  
            this.setDaemon(true);  
        }  

        @Override  
        public void run() {  
            try {  
                String cmd = null;  
                while((cmd = br.readLine()) != null){  
                    writer.println(cmd);  
                    writer.flush();  
                }  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }  
    }  
}

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