在Android中导入Gradle，但一些jar依赖项没有建立

Question

我是Gradle的新手，我正在尝试将一个现有的项目集成到我的android项目中。我就是这么做的：

1. 当独立执行时，Gradle项目就像一种魅力一样工作。
2. 我执行了gradlew clean distZip和gradlew distZip来创建一个工作jar以包含在我的android项目中
3. 我将jar作为外部添加，并按签入文件
4. 我已经执行了我的android项目，我可以从gradle调试内部执行
5. 它将引发一个java.lang.NoClassDefFoundError: javax.json.JsonObject exception

我不知道这有什么问题。我附上一些日志和图片：

10-07 10:02:51.166: W/dalvikvm(1950): VFY: unable to find class referenced in signature (Ljavax/script/ScriptEngine;)
10-07 10:02:51.168: W/dalvikvm(1950): VFY: unable to resolve interface method 23354: Ljavax/script/ScriptEngine;.getBindings (I)Ljavax/script/Bindings;
10-07 10:02:51.170: W/dalvikvm(1950): Unable to resolve superclass of Lsimple/escp/fill/DataSourceBinding; (2807)
10-07 10:02:51.170: W/dalvikvm(1950): Link of class 'Lsimple/escp/fill/DataSourceBinding;' failed
10-07 10:02:51.177: E/dalvikvm(1950): Could not find class 'javax.json.JsonObject', referenced from method simple.escp.data.DataSources.
10-07 10:02:51.177: W/dalvikvm(1950): VFY: unable to resolve const-class 2753 (Ljavax/json/JsonObject;) in Lsimple/escp/data/DataSources;
10-07 10:02:51.178: W/dalvikvm(1950): Exception Ljava/lang/NoClassDefFoundError; thrown while            iniitializing Lsimple/escp/data/DataSources;
10-07 10:02:51.179: W/dalvikvm(1950): threadid=1: thread exiting with uncaught exception (group=0x410ba9a8)
10-07 10:02:51.182: E/AndroidRuntime(1950): FATAL EXCEPTION: main
10-07 10:02:51.182: E/AndroidRuntime(1950): java.lang.NoClassDefFoundError: javax.json.JsonObject
10-07 10:02:51.182: E/AndroidRuntime(1950): at simple.escp.data.DataSources.(DataSources.java:26)
10-07 10:02:51.182: E/AndroidRuntime(1950): at com.prv.pdf2jpg.MainActivity$2.onClick(MainActivity.java:181)
10-07 10:02:51.182: E/AndroidRuntime(1950): at android.view.View.performClick(View.java:4211)
10-07 10:02:51.182: E/AndroidRuntime(1950): at android.view.View$PerformClick.run(View.java:17456)
10-07 10:02:51.182: E/AndroidRuntime(1950): at android.os.Handler.handleCallback(Handler.java:725)
10-07 10:02:51.182: E/AndroidRuntime(1950): at android.os.Handler.dispatchMessage(Handler.java:92)
10-07 10:02:51.182: E/AndroidRuntime(1950): at android.os.Looper.loop(Looper.java:153)
10-07 10:02:51.182: E/AndroidRuntime(1950): at android.app.ActivityThread.main(ActivityThread.java:5293)
10-07 10:02:51.182: E/AndroidRuntime(1950): at java.lang.reflect.Method.invokeNative(Native Method)
10-07 10:02:51.182: E/AndroidRuntime(1950): at java.lang.reflect.Method.invoke(Method.java:511)
10-07 10:02:51.182: E/AndroidRuntime(1950): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
10-07 10:02:51.182: E/AndroidRuntime(1950): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
10-07 10:02:51.182: E/AndroidRuntime(1950): at dalvik.system.NativeStart.main(Native Method)

图片：http://oi58.tinypic.com/21nfl7m.jpg

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Answer 1

您必须在build.gradle中添加lib文件夹：

dependencies 
{
    compile files('libs/mylib.jar')
}

或

dependencies 
{
    compile fileTree(dir: 'libs', include: '*.jar')
}