java - Windows空间中* .exe路径和参数中的java ProcessBuilder

Question

经常讨论，但这似乎是一种奇怪的情况。
在win cmd.exe中，我成功运行:

"c:\Program Files\myapp.exe" -my_arg="sth. with space"

和

"c:\Program Files\myapp.exe" -my_arg="sth_without_space"

在Java ProcessBuilder.command(xxx)中，以下操作失败，并且“c:\Program”不是有效命令(xxx包含以下数组):

// using cmd.exe:
["cmd.exe", "/c", "c:\Program Files\myapp.exe", "-my_arg=sth. with space"]         // no extra quoting
["cmd.exe", "/c", "\"c:\Program Files\myapp.exe\"", "-my_arg=sth. with space"]     // exe       quoted
["cmd.exe", "/c", "\"c:\Program Files\myapp.exe\"", "-my_arg=\"sth. with space\""] // exe & arg quoted
["cmd.exe", "/c", "c:\Program Files\myapp.exe", "-my_arg=\"sth. with space\""]     //       arg quoted

// putting all as cmd.exe arg:
["cmd.exe", "/c", "c:\Program Files\myapp.exe -my_arg=sth. with space"]            // no extra quoting
["cmd.exe", "/c", "\"c:\Program Files\myapp.exe\" -my_arg=sth. with space"]        // exe       quoted
["cmd.exe", "/c", "\"c:\Program Files\myapp.exe\" -my_arg=\"sth. with space\""]    // exe & arg quoted
["cmd.exe", "/c", "c:\Program Files\myapp.exe -my_arg=\"sth. with space\""]        //       arg quoted

// calling *.exe directly
["c:\Program Files\myapp.exe", "-my_arg=sth. with space"]                          // no extra quoting
["\"c:\Program Files\myapp.exe\"", "-my_arg=sth. with space"]                      // exe       quoted
["\"c:\Program Files\myapp.exe\"", "-my_arg=\"sth. with space\""]                  // exe & arg quoted
["c:\Program Files\myapp.exe", "-my_arg=\"sth. with space\""]                      //       arg quoted

运行此工作正常:

["cmd.exe", "/c", "c:\Program Files\myapp.exe", "-my_arg=sth_without_space"]

当* .exe路径和arg包含空格时，问题似乎开始。
[编辑]:
我的问题是:如何在exe的路径和arg的内容中使用空格运行它？

Answer 1

要使其与cmd和WITH空格一起使用，您需要添加另一层引用。
毕竟，您编写了一个Java程序。 Java编译器期望将字符串加引号，但在运行时这些引号不再存在。一些字符串将用于启动cmd，其他字符串将传递给cmd。
Cmd本身会检查接收到的参数并将对其进行解析。要标记哪个空格是定界符而哪个不是，您需要带引号。 Cmd将理解这些引号并将其删除-被调用的程序不再注意到它们。
因此，要么添加更多引号(使用正确的转义符)，要么尝试直接运行可执行文件。

["cmd.exe", "/c", "\"c:\\Program Files\\myapp.exe\"", "\"-my_arg=sth_with space\""]