Android的JRE系统libary（java.awt中。*）错过 [英] Android JRE System libary (java.awt.*) is missed

问题描述

我想运行在Android pdfbox.jar图书馆，好像我做的一切权利。 我使用Eclipse pluging部署项目。 在code是非常简单的只是呼吁pdfbox.jar库。

I'm trying to run pdfbox.jar library on Android and seems like I do everything right. I use Eclipse pluging to deploy the project. The code is very simple just call for pdfbox.jar library.

所有需要的jar都位于classpath中以正确的顺序，虽然Dalvik的重新编译的字节级code应导出。

All required jars are located in classpath in correct order and should be exported while dalvik recompiles the byte-code.

但我所有的努力得到它的工作是失败的，当我部署，我得到了下面的错误项目

but all my attempts to get it work is failed, when I deploy the project I got the following error

05-10 13:53:42.590: I/dalvikvm(14009): Failed resolving Lorg/apache/pdfbox/pdmodel/PDDocument; interface 911 'Ljava/awt/print/Pageable;'
05-10 13:53:42.590: W/dalvikvm(14009): Link of class 'Lorg/apache/pdfbox/pdmodel/PDDocument;' failed
05-10 13:53:42.590: E/dalvikvm(14009): Could not find class 'org.apache.pdfbox.pdmodel.PDDocument', referenced from method com.ibm.ext.pdf.PDFExtractor.extractText

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05-10 13:53:54.881: E/AndroidRuntime(14009): FATAL EXCEPTION: main
05-10 13:53:54.881: E/AndroidRuntime(14009): java.lang.NoClassDefFoundError: org.apache.pdfbox.pdmodel.PDDocument
05-10 13:53:54.881: E/AndroidRuntime(14009):    at com.ibm.ext.pdf.PDFExtractor.extractText(PDFExtractor.java:52)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at com.ibm.ext.pdf.PDFBoxActivity.onCreate(PDFBoxActivity.java:14)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at android.app.Activity.performCreate(Activity.java:4465)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at android.app.ActivityThread.access$600(ActivityThread.java:123)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at android.os.Handler.dispatchMessage(Handler.java:99)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at android.os.Looper.loop(Looper.java:137)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at android.app.ActivityThread.main(ActivityThread.java:4424)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at java.lang.reflect.Method.invokeNative(Native Method)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at java.lang.reflect.Method.invoke(Method.java:511)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
05-10 13:53:54.881: E/AndroidRuntime(14009):    at dalvik.system.NativeStart.main(Native Method)

---

org/apache/pdfbox/pdmodel/PDDocument implements java/awt/print/Pageable

似乎dalvit不知道出口的java.awt。*类由于某种原因还有东西，我错过了在类路径中。

it seems that dalvit doesn't know to export java.awt.* classes for some reason or there is still something that I missed in the classpath.

我想知道是否有任何解决方案或这是有效的情况下，我不能用罐子这是依赖于Dalvik的不知道要使用的JRE库。

I'd like to know whether there is any solution or this is valid case and I can't use jars which are depend on jre libraries that dalvik doesn't know to use.

任何帮助将AP preciated。

Any help will be appreciated.

推荐答案

Android不包括大部分的 java.awt中。* 类等第三方Java这取决于这些类图书馆将需要重新编写工作在Android，或者干脆不使用。

Android does not include most of the java.awt.* classes, and so third-party Java libraries that depend upon such classes would need to be rewritten to work on Android, or simply not used.

我不能用罐子这是依赖于Dalvik的不知道要使用的JRE库。

I can't use jars which are depend on jre libraries that dalvik doesn't know to use.

更准确的说，您不能使用依赖于类的Andr​​oid SDK中不包括JAR文件。

More accurately, you cannot use JARs which depend on classes that the Android SDK does not include.

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