如何使用包含共享库（.so）创建JAR文件

Question

For one of my project I need to call native c code to my java class . For this I made following steps.

1. In my java class I declared some native methods which are required for my project. ie

    public native String print(String pM,int len); public native int openPrint(); 

2. I initiated library file like below

    static { System.loadLibrary("print"); } 

3. After this I created header file with respect java code.

4. created c file and implemented above methods in c

5. after this I generated library file ie libprint.so using ndk-build

6. library file is created successfully in libs->armeabi->libprint.so

7. whenever I run that java application it's giving error saying that

    Exception in thread "main" java.lang.UnsatisfiedLinkError: no print in java.library.path 

How do I solve this problem.?

I want to give this kind of application to other Android developers so that they can create this application without doing Native call and without creating libprint.so file

It means I have to give my own API to application developer. For this I have to create JAR file. which includes java.class , libprint.so (shared library) and etc...

How to create JAR file which includes libprint.so also..

I am doing all above stuffs in ubuntu using eclipse and open-jdk6.

Answer 1

In Windows if the jar use a dll, you must copy the dll to the root folder inside the jar. After that the program will find it.

Try it, it maybe help you.