JAVA实现实时Process，实时获取输出

如题，java实现实时Process，我这里采用ProcessBuilder类获取一个Process实例

具体看代码：RealtimeProcess.java

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;


public class RealtimeProcess{
	// 是否在执行
	private boolean isRunning = false;
	// 存放命令行
	private ArrayList commandList = new ArrayList();
	// 保存所有的输出信息
	private StringBuffer mStringBuffer = new StringBuffer();
	private ProcessBuilder mProcessBuilder = null;
	private BufferedReader readStdout = null;
	private BufferedReader readStderr = null;
	// 回调用到的接口
	private RealtimeProcessInterface mInterface = null;
	private int resultCode = 0;
	private String ROOT_DIR = null;
	private String tmp1 = null;
	private String tmp2 = null;
	
	
	public RealtimeProcess(RealtimeProcessInterface mInterface){
		// 实例化接口对象
		this.mInterface = mInterface;
	}
	public void setCommand(String ...commands){
		// 遍历命令
		for(String cmd : commands){
			RealtimeProcessCommand mRealtimeProcessCommand = new RealtimeProcessCommand();
			if(ROOT_DIR != null)
				mRealtimeProcessCommand.setDirectory(ROOT_DIR);
			mRealtimeProcessCommand.setCommand(cmd);
			commandList.add(mRealtimeProcessCommand);
		}
	}
	public void setDirectory(String directory){
		this.ROOT_DIR = directory;
	}
	public void start() throws IOException, InterruptedException{
		isRunning = true;
		for(RealtimeProcessCommand mRealtimeProcessCommand : commandList){
			mProcessBuilder = new ProcessBuilder();
			if(ROOT_DIR != null)
				mProcessBuilder.directory(new File(mRealtimeProcessCommand.getDirectory()));
			// 不重定向错误输出
			mProcessBuilder.redirectErrorStream(false);
			mProcessBuilder.command(mRealtimeProcessCommand.getCommand());
			exec(mProcessBuilder.start());
		}
	}
	public String getAllResult(){
		return mStringBuffer.toString();
	}

	private void exec(final Process process) throws InterruptedException{
		// 获取标准输出
		readStdout = new BufferedReader(new InputStreamReader(process.getInputStream()));
		// 获取错误输出
		readStderr = new BufferedReader(new InputStreamReader(process.getErrorStream()));
		// 创建线程执行
		Thread execThread = new Thread(){
			public void run(){
				try {
					// 逐行读取
					while((tmp1 = readStdout.readLine()) != null || (tmp2 = readStderr.readLine()) != null){
					if(tmp1 != null){
						mStringBuffer.append(tmp1 + "\n");
						// 回调接口方法
						mInterface.onNewStdoutListener(tmp1);
					}
					if(tmp2 != null){
						mStringBuffer.append(tmp2 + "\n");
						mInterface.onNewStderrListener(tmp2);
					}
					}
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				resultCode = process.exitValue();
			}
		};
		execThread.start();
		execThread.join();
		isRunning = false;
		mInterface.onProcessFinish(resultCode);
	}
	public boolean isRunning(){
		return this.isRunning;
	}
	public int getCommandSize(){
		return commandList.size();
	}
	public RealtimeProcessCommand getRealtimeProcessCommand(int p){
		return commandList.get(p);
	}
	
}
class RealtimeProcessCommand{
	private String directory = null;
	private String command = null;
	public RealtimeProcessCommand(){}
	
	public void setDirectory(String directory){
		this.directory = directory;
	}
	public void setCommand(String command){
		this.command = command;
	}
	public String getDirectory(){
		return this.directory;
	}
	public String getCommand(){
		return this.command;
	}
	
}
interface RealtimeProcessInterface{
	void onNewStdoutListener(String newStdout);
	void onNewStderrListener(String newStderr);
	void onProcessFinish(int resultCode);
	//void execCommand(String ...commands);
}

再来个使用RealtimeProcess的demo： Main.java

import java.io.IOException;


public class Main implements RealtimeProcessInterface{

	/**
	 * @param args
	 */
	private RealtimeProcess mRealtimeProcess = null;
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		new Main().test();
	}
	public void test(){
		mRealtimeProcess = new RealtimeProcess(this);
		//mRealtimeProcess.setDirectory("");
		mRealtimeProcess.setCommand("C:\\Documents and Settings\\Administrator\\桌面\\a.bat");
		try {
			try {
				mRealtimeProcess.start();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		//System.out.println(mRealtimeProcess.getAllResult());
	}
	public void onNewStdoutListener(String newStdout) {
		// TODO Auto-generated method stub
		System.out.println("==>STDOUT  >  " + newStdout);
		
	}
	public void onNewStderrListener(String newStderr) {
		// TODO Auto-generated method stub
		System.out.println("==>STDERR  >  " + newStderr);
	}
	public void onProcessFinish(int resultCode) {
		// TODO Auto-generated method stub
		System.out.println("==>RESULT_CODE  >  " + resultCode);
	}
}

执行的命令的内容： C:\Documents and Settings\Administrator\桌面\a.bat

ping www.baidu.com
exit 888

源码附件