如何使用Commons Exec将命令的输出捕获为String？ [英] How can I capture the output of a command as a String with Commons Exec?

问题描述

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。 ？如何我可以捕捉命令的输出为一个字符串

Commons exec provides a PumpStreamHandler which redirects standard output to the Java process' standard output. How can I capture the output of the command into a String?

推荐答案

He're我发现了什么：

He're what I found:

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());
}

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