commandwrapper.java

Java 图形界面入门实例

// 在java中运行其他程序详解
import java.io.*;

public class CommandWrapper 
{  Process process;  
   Thread in;  
   Thread out;  
   public CommandWrapper(Process process) 
   {    this.process = process;    
        final InputStream inputStream = process.getInputStream();
		     //final BufferedReader r=new BufferedReader(new InputStreamReader(inputStream));    
        final byte[] buffer = new byte[1024];    
        out = new Thread()
        {    //String line;      
		   int lineNumber=0;     
           public void run() 
           {        
             try 
			{         
                while (true)
				{ int count = inputStream.read(buffer);           
				  System.out.println(lineNumber+":"+new String(buffer, 0, count-1));
				      //line=r.readLine();
					  //System.out.println(lineNumber+":"+line); 
				  lineNumber++; 
				}    
             } catch (Exception e) {}   
         }   
    };    
    final BufferedReader reader =new BufferedReader(new InputStreamReader(System.in));    
    final OutputStream outputStream = process.getOutputStream();   
    in = new Thread() 
	{
		String line;    
        public void run() 
        {
			try 
			{
				while (true) 
				{ outputStream.write( (reader.readLine()+"\n").getBytes());
				  outputStream.flush();
				 }
			}catch (Exception e) { }
		}
	}; 
 } 
 
 public void startIn()
 {  in.start();  } 
 
 public void startOut() 
 {  out.start(); } 
 
 public void interruptIn()
 {   in.interrupt();  } 
 
 public void interruptOut() 
 {   out.interrupt(); } 
 
 public static void main(String[] args)
 {    
    try 
	{   CommandWrapper command = new CommandWrapper(Runtime.getRuntime().exec("native2ascii"));     
        command.startIn();     
        command.startOut();   
    }catch (Exception e) {e.printStackTrace();}  
 }
}