osexecute.java

看thinkinjava学习java时

package myutils;
import java.io.*;
public class OSExecute {

	public static void command(String command){
		boolean err = false;
		try{
			Process process = new ProcessBuilder(command.split("")).start();
			BufferedReader results = new BufferedReader(
					new InputStreamReader(process.getInputStream()));
			String s;
			while((s = results.readLine())!= null)
				System.out.println(s);
				BufferedReader errors = new BufferedReader(
						new InputStreamReader(process.getErrorStream()));
				//report errors and return nonzero valus to calling process if there are problems
				while((s = errors.readLine())!= null){
					System.err.println(s);
					err = true;
				}
		}catch(Exception e){
			//compensste for windows 2000, which throw an exception for the default command line:
			if(command.startsWith("CMD/C"))
				command("CMD/C"+command);
			else
				throw new RuntimeException(e);
		}
	
	if(err)
		//throw new OSExecuteException("Errors executing" + command);
		System.out.println("Errors2 executing" + command);
	
	}
}