如何使用Commons Exec将命令的输出捕获为String？

Question

Commons exec提供了一个PumpStreamHandler,它将标准输出重定向到Java进程的标准输出.如何将命令的输出捕获到String中？

Answer 1

他是我发现的:

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());
}