最近在公司里做了一个手机的项目，需要JAVA程序在发送短信的时候和第三方的短信服务器连接。短信接口是用C++写的。琢磨了三天，大致搞懂了JNI的主体部分。先将心得整理，希望各位朋友少走弯路。 首先引用一篇文章，介绍一个简单的JNI的调用的过程。

在有了这两个头文件之后，就可以进行C程序的编写了。也就是实现对JNI调用的两个方法。在网上的资料中，由于调用的方法实现的都比较简单，（大多是打印字符串等）所以避开了JNI中最麻烦的部分，也是最关键的部分，参数的传递。由于Java和C的编码是不同的 ...

Since my trusty C++ compiler produced fast math code, I just needed to call these math routines instead of the slow StrictMath routines from my Java program. Java Native Interface (JNI) enables Java ...

I would like to have some JNI code malloc a block of memory and pass it back to my Java code (in the form of a jlong), so that future calls to other JNI functions can pass this pointer along for the ...

Java enhancement proposal would preserve the status of the Java Native Interface as a standard way to interoperate with native code, while disallowing interoperation with native code by default. A ...