在Runtime.getRuntime（）。exec中有2个可执行文件的空格 [英] Having spaces in Runtime.getRuntime().exec with 2 executables

问题描述

我有一个命令，我需要在这些行中运行java：

  C：\ path \ thathat has\spaces\plink -arg1 foo -arg2 barpath / on / remote / machine / iperf -arg3 hello -arg4 world
  

当路径没有空格时，此命令正常工作，但是当我有空格时，我似乎无法使其工作。我尝试过以下操作，运行Java 1.7

  String [] a =C：\ path \ thathathat \\ spaces\plink， -  arg1 foo， -  arg2 bar，path / on / remote / machine / iperf -arg3 hello -arg4 world
 Runtime.getRuntime（）。exec（a） ; 
  

以及

  String [] a =C：\ path \that has\spaces\plink， -  arg1 foo， -  arg2 bar，path / on / remote / machine / iperf， -  arg3 hello， -  arg4 world
 Runtime.getRuntime（）。exec（a）; 
  

但似乎都没有做任何事情。关于我做错了什么的想法??

解决方案

传递给命令的每个参数都应该是一个单独的String元素。 / p>

所以你的命令数组看起来应该更像...

  String [] a = new String [] {
C：\ path \that has\spaces\plink，
-arg1，
foo，
-arg2，
bar，
path / on / remote / machine / iperf -arg3 hello -arg4 world}; 
  

每个元素现在都将作为程序中的单个元素出现 args 变量

我也非常鼓励你使用 ProcessBuilder ，因为它更容易配置，不需要你包含一些命令\... \

I have a command that I need to run in java along these lines:

    C:\path\that has\spaces\plink -arg1 foo -arg2 bar "path/on/remote/machine/iperf -arg3 hello -arg4 world"

This command works fine when the path has no spaces, but when I have the spaces I cannot seems to get it to work. I have tried the following things, running Java 1.7

String[] a = "C:\path\that has\spaces\plink", "-arg1 foo", "-arg2 bar", "path/on/remote/machine/iperf -arg3 hello -arg4 world"
Runtime.getRuntime().exec(a);

as well as

String[] a = "C:\path\that has\spaces\plink", "-arg1 foo", "-arg2 bar", "path/on/remote/machine/iperf", "-arg3 hello", "-arg4 world"
Runtime.getRuntime().exec(a);

But neither seem to be doing anything. Any thoughts on what i am doing wrong??

解决方案

Each argument you pass to the command should be a separate String element.

So you command array should look more like...

String[] a = new String[] {
    "C:\path\that has\spaces\plink",
    "-arg1",
    "foo", 
    "-arg2",
    "bar",
    "path/on/remote/machine/iperf -arg3 hello -arg4 world"};

Each element will now appear as a individual element in the programs args variable

I would also, greatly, encourage you to use ProcessBuilder instead, as it is easier to configure and doesn't require you to wrap some commands in "\"...\""

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