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我正在尝试在 OSGi 容器 (spring-dm) 中运行 Java Advanced Imaging (JAI)。我能够访问 JAI 库，但是当我第一次调用 JAI 时收到以下错误：

错误：无法加载 mediaLib 加速器包装类。继续纯 Java 模式。
出现在：com.sun.media.jai.mlib.MediaLibAccessor
com.sun.media.jai.mlib.MediaLibLoadException

DLL 位于类路径中，并在我的清单中作为 Bundle-NativeCode 库引用。是否可以在 OSGi 中运行本机 JAI DLL？如果是这样，我需要做什么？

（编辑：澄清）

我下载了 Windows JAI 库并从下载包中提取了 JAR 和 DLL。

主祭：

清单版本：1.0
捆绑包名称：Java 高级成像
捆绑符号名称：javax.media.jai
捆绑版本：1.1.3
捆绑类路径：libs/，
 jai_codec.jar,
 jai_core.jar，
 mlibwrapper_jai.jar
Bundle-RequiredExecutionEnvironment：JavaSE-1.6
Bundle-NativeCode：libs/mlib_jai_mmx.dll；操作系统名=WindowsXP；处理器=x86，
 库/mlib_jai_util.dll；操作系统名=WindowsXP；处理器=x86，
 库/mlib_jai.dll；操作系统名=WindowsXP；处理器=x86
出口包装：
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1 回答 1

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The declaration of the Bundle-NativeCode block doesn't look right. According to the OSGi specification (which I highly recommend you download - it's pretty straight-forward), all libraries for a single platform should be specified in the same clause, so that changes it to:

Bundle-NativeCode: libs/mlib_jai_mmx.dll; libs/mlib_jai_util.dll; libs/mlib_jai.dll; 
 osname=WindowsXP; 
 processor=x86

In general I don't recommend rolling your own bundle manifests if you can find them elsewhere (this one is pretty simple besides the native code part). In this case, I found them 2 of them at the Spring repository. It doesn't include the native code part - probably due to license issues.

于 2009-09-29T17:45:18.637 回答