NSIS - 在运行之前设置进程的工作目录 [英] NSIS - Set the working directory for a process before running it

问题描述

如上所述。
我通过调用java.exe并传递类名，使用ExecWait专门运行Java程序。我正在运行的应用程序依赖于相对路径，必须从特定目录运行，但是当我直接调用java时，它只是使用安装程序位置作为当前目录而失败。

As above. I'm specifically running a Java program using ExecWait, by invoking java.exe and passing the classname. The application I'm running relies on relative paths and has to be run from a specific directory, however when I directly call java, it simply uses the installer location as the current directory and fails.

有没有办法解决这个问题？

Is there a way to get around this?

更新：这是我的命令行：

ExecWait "$INSTDIR\MyApp\jre\bin\java.exe -cp $INSTDIR\MyApp\lib\*; MyJavaClassName"

推荐答案

< a href =http://anders_k.users.sourceforge.net/public/NSIS/2.46/Manual.html#setoutpath> SetOutPath 设置进程的当前/工作目录，它应该由子进程...

SetOutPath sets the current/working directory for the process, it should be inherited by the child process...

Push $OUTDIR
SetOutPath $myspecialdir
ExecWait '"$instdir\myapp.exe"'
Pop $OUTDIR
SetOutPath $OUTDIR # Optional if working directory does not matter for the rest of the code

或

SetOutPath $myspecialdir
ExecWait '"$instdir\myapp.exe"'
SetOutPath $instdir

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