. lang。IllegalArgumentException:不是有效的类名:ANDROID NDK javah

Im learning to code Android in NDK on WINDOWS Eclipse.... been following a Tutorial Book by Sylvain Ratabouil. So im in Run | External Tools | External Tools Configurations… creating a new program configuration.

我学习在WINDOWS Eclipse中的代码Android NDK ....一直在阅读西尔瓦恩·拉塔布尔的教程。因此，我正在运行|外部工具|外部工具配置……创建一个新的程序配置。

Name: MyProject javah

名称:MyProject javah

Location : ${env_var:JAVA_HOME}\bin\javah.exe

地点:$ { env_var:JAVA_HOME } \ bin \ javah.exe

Working directory: ${workspace_loc:/MyProject/bin}

工作目录:$ { workspace_loc:/ MyProject / bin }

The problem comes In arguments... when i try Arguments: –d ${workspace_loc:/MyProject/jni} com.myproject.MyActivity as it says in the book

问题来自争论……当我尝试参数:-d ${workspace_loc:/MyProject/jni} com.myproject。就像书中说的那样

i get when i click run

当我点击运行时

Exception in thread "main" java.lang.IllegalArgumentException: Not a valid class name: –d

when i try ${workspace_loc:/MyProject/jni} com.myproject.MyActivity}

当我尝试${workspace_loc:/MyProject/jni} com.myproject.MyActivity}时

i get

我得到

Exception in thread "main" java.lang.IllegalArgumentException: Not a valid class name: C:\Paul\Workspace\MyProject\jni

UPDATE: i put -classpath first and it's running but can not find the class file for com.myproject

更新:我把-classpath放在前面，它正在运行，但是找不到com.myproject的类文件

6 个解决方案

#1

after further research.... i did it.

经过进一步研究....我做到了。

i set arguments to

我设置的参数

-d ${workspace_loc:/MyProject/jni} -classpath C:\Paul\android-sdk-windows\platforms\android-17\android.jar;${workspace_loc:/MyProject/bin/classes} com.myproject.MainActivity

-d ${workspace_loc:/MyProject/jni} -classpath C:\Paul\android-sdk-windows平台\android-17\ androidis .jar;${workspace_loc:/MyProject/bin/classes} . myproject.mainactivity

#2

I also spend some long time on this problem when working with the the mentioned book about Android NDK.

我在使用提到的关于Android NDK的书时，也花了很长时间来研究这个问题。

Please note the following: The java classname is NOT written in { }, just write something like com.myproject.MyActivity

请注意以下内容:java classname不是用{}写的，而是写一些类似com.myproject.MyActivity的东西。

The -classpath parameter can receive several paths devided by semicolon.

类路径参数可以接收由分号分隔的多条路径。

In my case this parameters worked:

在我的例子中，这些参数起作用了:

Location:

地点:

${env_var:JAVA_HOME}\bin\javah.exe

Working Directory:

工作目录:

${workspace_loc:/myproject/bin}

Arguments:

参数:

-d ${workspace_loc:/myproject/jni} -classpath ${workspace_loc:/myproject/bin/classes};"C:\Eclipse\sdk\platforms\android-18\android.jar" com.myproject.MyActivity

(BTW.: The correct Adroid.jar file is referenced inside the Eclipse project.)

(顺便说一句。:正确的Adroid。jar文件在Eclipse项目中被引用。

#3

Me also facing the same problem tonight, i found a less tedious way as following...

今晚我也面临着同样的问题，我找到了一种不那么乏味的方式。

1. as "Location" set the javah from your system
2. 作为“位置”，从系统中设置javah
3. as "Working directory" set the project's bin/classes directory (${workspace_loc:/HelloWorld/bin/classes})
4. 作为“工作目录”，设置项目的bin/classes目录(${workspace_loc:/HelloWorld/bin/classes})
5. as "Argument" set the jni folder as the output directory and point out the class on which you want to run the javah (-d "${workspace_loc:/HelloWorld/jni}" com.example.helloworld.MainActivity)
6. 作为“参数”，将jni文件夹设置为输出目录，并指出要运行java的类(-d“${workspace_loc:/HelloWorld/jni}”com.example.helloworld.MainActivity)

NB :: Dont forget the double qoute (") around the output in the third step ("${workspace_loc:/HelloWorld/jni}")

NB:不要忘记第三步中输出的双qoute ("${workspace_loc:/HelloWorld/jni}")

A full picture is also attached following

全文如下

#4

well in case ...

在情况下……

1-> Goto ( cd C:\Program Files\Java\jdk1.7.0_60\bin)

1 - >转到(cd C:\Program Files\Java\ jdk1.7.0_60 \ bin)

2-> C:\Program Files\Java\jdk1.7.0_60\bin>javah -jni -classpath F:\Android_OpenGLES\FibonacciNative\bin\classes -d F:\Android_OpenGLES\FibonacciNative\jni\ com.example.fibonaccinative.FibLib

2 - > C:\Program Files\Java\ jdk1.7.0_60 \ bin > javah jni classpath F:\ Android_OpenGLES \ FibonacciNative \ bin \类F - d:\ Android_OpenGLES \ FibonacciNative \ jni \ com.example.fibonaccinative.FibLib

without creating/using environment variable ...

没有创建/使用环境变量…

#5

Following I tried successfully

之后我尝试成功

javah com.sense.kios.Calculation

Note: Include package name.

注:包括包名。

In case if javah not found as an command and you getting

如果没有找到作为命令的javah，您将得到

The program 'javah' can be found in the following packages:
 * gcj-4.6-jdk
 * gcj-4.7-jdk
 * openjdk-7-jdk
 * openjdk-6-jdk
Try: sudo apt-get install <selected package>

use direct path of jdk path, in my case it's /usr/lib/jvm/jdk1.8.0/bin/javah.

使用jdk路径的直接路径，在我的例子中是/usr/lib/jvm/jdk1.8.0/bin/ javahah。

#6

YES THAT'S CORRECT more abstract would be

是的，这更抽象。

-d ${workspace_loc:/MyProject/jni} -classpath ${env_var:ANDROID_SDK_HOME}\platforms\android-16\android.jar;${workspace_loc:/MyProject/bin/classes} com.myproject.MyActivity