如何将Commons Exec运行的信息捕捉呢?

实现思路:
    只需使用PumpStreamHandler对象接收命令执行的输出流
	即可获取相关信息

import java.io.ByteArrayOutputStream;
import org.apache.commons.exec.CommandLine;
import org.apache.commons.exec.DefaultExecutor;
import org.apache.commons.exec.Executor;
import org.apache.commons.exec.PumpStreamHandler;

public String execToString(String command) throws Exception {
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    CommandLine commandline = CommandLine.parse(command);
    DefaultExecutor exec = new DefaultExecutor();
    PumpStreamHandler streamHandler = new PumpStreamHandler(outputStream);
    exec.setStreamHandler(streamHandler);
    exec.execute(commandline);
    return(outputStream.toString());
}