如何在 jnlp 文件中区分 32 位和 64 位 java 版本 [英] How to distinguish 32 bit from 64 bit java version in jnlp files

问题描述

为了启动我们的遗留应用程序，我们通过 jnlp 使用 java WebStart.

To start our legacy application, we use java WebStart via a jnlp.

我们希望支持 64 位 Java 客户端，但我们的库之一是依赖于架构的.

We would like to support 64-bit Java clients but one of our libraries is architecture dependent.

我们想过做这样的事情:

We thought of doing something like:

<resources>
  <j2se version="1.6+" sun.arch.data.model="64"/>
  <jar href="/apps/swt-3.7M5-win32-win32-x86_64_s.jar" download="eager" />
</resources>
<resources>
  <j2se version="1.6+" />
  <jar href="/apps/swt-3.7M5-win32-win32-x86_s.jar" download="eager" />
</resources>

这不起作用，因为参数 sun.arch.data.model="64" 用于设置参数而不是对其进行测试.

This is not working because the parameter sun.arch.data.model="64" is used to set the parameter instead of testing on it.

有什么想法吗?

推荐答案

这在文档中有解释，这里:http://docs.oracle.com/javase/7/docs/technotes/guides/javaws/developersguide/syntax.html#resources

This is explained in the documentation, here: http://docs.oracle.com/javase/7/docs/technotes/guides/javaws/developersguide/syntax.html#resources

不过，它没有说明哪些 arch 值有意义.您可能希望它适用于不同的 JVM 实现和版本.我用谷歌搜索了一段时间，这是我最终使用的:

It doesn't say which arch values make sense, though. You would want it to work for different JVM implementations and versions. I googled around for a while and here's what I've ended up using:

  <resources>
    <java version="1.6+"/>
    <jar href="lwjgl-2.8.4.jar"/>
    <jar href="lwjgl_util-2.8.4.jar"/>
  </resources>

  <!-- LWJGL Linux 64-bit native libraries -->
  <resources os="Linux" arch="amd64">
    <nativelib href="lwjgl-amd64-linux.jar"/>
  </resources>
  <resources os="Linux" arch="x86_64">
    <nativelib href="lwjgl-amd64-linux.jar"/>
  </resources>

  <!-- LWJGL Linux 32-bit native libraries -->
  <resources os="Linux" arch="x86">
    <nativelib href="lwjgl-x86-linux.jar"/>
  </resources>
  <resources os="Linux" arch="i386">
    <nativelib href="lwjgl-x86-linux.jar"/>
  </resources>

  <!-- LWJGL Windows 64-bit native libraries -->
  <resources os="Windows" arch="amd64">
    <nativelib href="lwjgl-amd64-win.jar"/>
  </resources>
  <resources os="Windows" arch="x86_64">
    <nativelib href="lwjgl-amd64-win.jar"/>
  </resources>

  <!-- LWJGL Windows 32-bit native libraries -->
  <resources os="Windows" arch="x86">
    <nativelib href="lwjgl-x86-win.jar"/>
  </resources>
  <resources os="Windows" arch="i386">
    <nativelib href="lwjgl-x86-win.jar"/>
  </resources>

  <!-- LWJGL MAC OS/X native libraries -->
  <resources os="Mac">
    <nativelib href="lwjgl-macosx.jar"/>
  </resources>

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