Java调用C++可以通过JNI声明native方法进行调用，主要步骤有：
1、声明类及相关nativ方法，加载要调用的C++库
package bupt.cist.nlp.ner; public class ChineseNER {
static{
System.loadLibrary("CIST_NER");
}
public ChineseNER(){
}
public native void say(String msg);
public native String process(String line);
} |
2、到源码目录下，通过命令javah -jni bupt.cist.nlp.ner.ChineseNER编译类，生成.h头文件
/* DO NOT EDIT THIS FILE - it is machine generated */
#include "jni.h"
/* Header for class bupt_cist_nlp_ner_ChineseNER */ #ifndef _Included_bupt_cist_nlp_ner_ChineseNER
#define _Included_bupt_cist_nlp_ner_ChineseNER
#ifdef __cplusplus
extern "C" {
#endif
/*
* Class: bupt_cist_nlp_ner_ChineseNER
* Method: say
* Signature: (Ljava/lang/String;)V
*/
JNIEXPORT void JNICALL Java_bupt_cist_nlp_ner_ChineseNER_say
(JNIEnv *, jobject, jstring); /*
* Class: bupt_cist_nlp_ner_ChineseNER
* Method: process
* Signature: (Ljava/lang/String;)Ljava/lang/String;
*/
JNIEXPORT jstring JNICALL Java_bupt_cist_nlp_ner_ChineseNER_process
(JNIEnv *, jobject, jstring); #ifdef __cplusplus
}
#endif
#endif |
