无法使用ProcessBuilder运行程序，从命令行运行正常 [英] Can't run program with ProcessBuilder, runs fine from command line

问题描述

在linux（debian）上，我可以运行这个命令：

On linux (debian), I can run this command:

/usr/lib/jvm/jdk1.7.0_21/bin/java -jar ~/myjar.jar ".*"

我正在尝试运行它来自Java程序而不是：

I am trying to run it from a Java program instead with:

ProcessBuilder pb = new ProcessBuilder(java, "-jar", "~/myjar.jar", "\".*\"");

System.out.println（pb.command（））; 按预期打印以下内容：

System.out.println(pb.command()); prints the following, as expected:

[/usr/lib/jvm/jdk1.7.0_21/bin/java, -jar, ~/myjar.jar, ".*"]

但是我不喜欢从程序中获取相同的输出（它运行但输出看起来好像。*参数没有被正确考虑）。

However I don't get the same output from the program (it runs but the ouput looks as if the ".*" argument is not properly taken into account).

为什么它不起作用的任何想法？

Any ideas why it doesn't work?

注意：相同的代码在Windows上正常工作。

推荐答案

看起来没有使用 glob 。您可以改为使用shell：

Looks like the wildcard character is not being expanded using a glob. You can use a shell instead:

ProcessBuilder pb = 
       new ProcessBuilder("bash", "-c", "java -jar ~/myjar.jar \".*\"");

或者你可以删除通配符周围的双引号：

or you can remove the double-quotes around the wildcard:

ProcessBuilder pb = new ProcessBuilder(java, "-jar", "~/myjar.jar", ".*");

这篇关于无法使用ProcessBuilder运行程序，从命令行运行正常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！