Windows中javax.comm.properties的备用位置 [英] Alternate locations for javax.comm.properties in Windows

问题描述

我正在构建一个程序，该程序需要安装在我对％JAVA_HOME％/lib没有写访问权的Windows机器上.

除了％JAVA_HOME％/lib之外，还有其他地方可以将javax.comm.properties移到其他地方吗?

I'm building a program that needs to be installed on Windows machines for which I do not have write access to %JAVA_HOME%/lib.

Is there anywhere else I can move javax.comm.properties to other than %JAVA_HOME%/lib?

根据Java COM API常见问题解答:

According to the Java COM API FAQ:

问:我的应用程序枚举可用端口时找不到任何端口 端口.
答:为了让Java通信API查找端口文件 javax.comm.properties必须放在正确的位置.首选 位置在/lib中.请参阅安装说明，以了解 备用位置和更多信息.

Q: My application does not find any ports when it enumerates available ports.
A: In order for the Java communications API to find ports the file javax.comm.properties must be in the correct place. The preferred location is in /lib. See the installation instructions for alternate locations and further information.

在哪里可以找到包含这些备用位置的Sun安装说明?

Where can I find the Sun installation instructions that contain these alternate locations?

推荐答案

我找到了一种对我有用的方法.要求如下:

I found a way that works for me. Here are the requirements:

• comm.jar必须精确地命名为comm.jar(例如，不是comm-2.0.jar)，并且必须位于类路径中精确命名为"lib"的目录中.
• javax.comm.properties还必须具有该确切名称，并且必须与comm.jar位于同一目录中.
• win32com.dll必须在java.library.path中引用.

• comm.jar must be named exactly comm.jar (not comm-2.0.jar for example), and must be located in the classpath in a directory named exactly "lib".
• javax.comm.properties must also have that exact name, and be located in the same directory as comm.jar.
• win32com.dll must be referenced in the java.library.path.

因此，如果您具有这样的目录设置:

So, if you have a directory setup like this:

- lib\
   |- comm.jar
   |- javax.comm.properties
- ext\
   |- win32com.dll

然后，您可以在以下目录的根目录中使用以下java命令(假设带有YourMainClass的项目的jar文件也位于lib目录中:

Then you can use the following java command while in the root of these directories (assuming your project's jar file with YourMainClass is also in the lib directory:

java -Djava.library.path=.\ext -cp .\lib\* YourMainClass

有了这个，您不再需要在JRE的\bin或\lib目录下放置任何内容.

With this, you should no longer need to put anything under the \bin or \lib directories of your JRE.

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