java 如何在Windows中的ProcessBuilder java中设置PATH环境变量
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How to set PATH environment variable in ProcessBuilder java in windows
提问by Destructor
I am trying to set the PATH environment variable for the process builder in java, I tried the following:
我正在尝试为 java 中的进程构建器设置 PATH 环境变量，我尝试了以下操作：
ProcessBuilder pb = new ProcessBuilder(command);
Map<String, String> mp = pb.environment();
mp.put("Path", "myPath");
pb.start();
But the following did not work, the process builder picked the default system path. I came across this questionand this trick his not helping me in my current project. What should I do to get around this?
但是以下不起作用，流程构建器选择了默认系统路径。我遇到了这个问题，这个技巧在我当前的项目中没有帮助我。我该怎么做才能解决这个问题？
回答by kingoleg
Path is used in a new proccess. It doesn't used to find your command.
路径用于新进程。它不用于查找您的命令。
You can try the next solution. Run cmd.exe (bash etc.) and then run your command.
您可以尝试下一个解决方案。运行 cmd.exe（bash 等），然后运行您的命令。
Example:
例子：
public class Test {
public static void main(String[] args) throws IOException {
ProcessBuilder pb = new ProcessBuilder("cmd.exe", "/C", "start", "mystuff.exe");
Map<String, String> envs = pb.environment();
System.out.println(envs.get("Path"));
envs.put("Path", "C:\mystuff");
pb.redirectErrorStream();
pb.start();
}
}
