Java 如何将jar文件转换成apk？
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How to convert jar file into apk?
提问by Lavanya
I have one jar file, when I clicked that jar file, it was opened one window based application.
我有一个 jar 文件，当我单击该 jar 文件时，它打开了一个基于窗口的应用程序。
Now I would like to convert this jar file into apk file. That jar file having 5 class files. How can I know the initial class file? and How could I code on this in android?
现在我想把这个 jar 文件转换成 apk 文件。该 jar 文件有 5 个类文件。我怎么知道初始类文件？以及如何在 android 中对此进行编码？
Please do the needful.
请只做那些需要的。
Thanks in advance.
提前致谢。
回答by damax
You can convert J2ME apps (jar/jad) to Android (apk) using UpOnTek's conversion services. Service includes automatic conversion, followed by optimization tips.
您可以使用 UpOnTek 的转换服务将 J2ME 应用程序 (jar/jad) 转换为 Android (apk)。服务包括自动转换，后跟优化提示。
回答by Damian Ko?akowski
How can I know the initial class file?
我怎么知道初始类文件？
Please read http://docs.oracle.com/javase/tutorial/deployment/jar/appman.html.You should have a look at following part:
请阅读http://docs.oracle.com/javase/tutorial/deployment/jar/appman.html。你应该看看以下部分：
If you have an application bundled in a JAR file, you need some way to indicate which class within the JAR file is your application's entry point. You provide this information with the Main-Class header in the manifest, which has the general form:.......
如果您的应用程序捆绑在 JAR 文件中，您需要某种方式来指明 JAR 文件中的哪个类是您的应用程序的入口点。您通过清单中的 Main-Class 标头提供此信息，其一般形式为：......
Answering to your next question:
回答你的下一个问题：
How could I code on this in android?
我怎么能在android中对此进行编码？
Import JAR file to Android Project. You can get JAR's entry point from Manifest file ( not AndroidManiefst.xml but from JAR's Manifest). However, you mentioned:
将 JAR 文件导入 Android 项目。您可以从 Manifest 文件（不是 AndroidManiefst.xml，而是从 JAR 的 Manifest）获取 JAR 的入口点。但是，您提到：
it was opened one window based application.
它打开了一个基于窗口的应用程序。
It looks like those 5 classes have dependencies on some different JARs which could not be available on Android platform.
看起来这 5 个类依赖于一些在 Android 平台上无法使用的不同 JAR。
