Question

我正在尝试远程执行.bat文件并实现以下代码行：

ProcessBuilder processBuilder = new ProcessBuilder(command);
    final Process process = processBuilder.start();

    InputStream stderr = process.getErrorStream();
    InputStreamReader isr = new InputStreamReader(stderr);
    BufferedReader br = new BufferedReader(isr);
    String line = null;


    while ((line = br.readLine()) != null) {
        System.out.println(line);

    }
    process.waitFor();
    System.out.println("Waiting ...");

    System.out.println("Returned Value :" + process.exitValue());

但我的程序在循环中陷入困境。它显示的错误是：

CMD.EXE was started with the above path as the current directory.
UNC paths are not supported.  Defaulting to Windows directory.

它永远不会退出while循环。但是它成功执行了脚本。任何形式的帮助表示赞赏。感谢

Answer 1

你需要确保你也在处理stderr，你应该在不同的线程中处理这两个流。

阅读this并确保您遵循所有建议。

编辑：看看你编写的代码，你似乎已经从这篇精确的文章中复制了代码。实际上，它看起来像列出4.3（MediocreExecJavac.java）。

Answer 2

在.start（）之前添加redirectErrorStream（true）并读取getInputStream（）。这将读取stderr并将其与stdout合并为一个可以使用getInputStream（）读取的响应。

    ProcessBuilder processBuilder = new ProcessBuilder(command);
    processBuilder.redirectErrorStream(true);
    final Process process = processBuilder.start();

    InputStream stderr = process.getInputStream();
    InputStreamReader isr = new InputStreamReader(stderr);
    BufferedReader br = new BufferedReader(isr);
    String line = null;


    while ((line = br.readLine()) != null) {
        System.out.println(line);

    }
    process.waitFor();
    System.out.println("Waiting ...");

    System.out.println("Returned Value :" + process.exitValue());

ProcessBuilder在收到错误后卡住了

2 个答案: