工程目錄結構如下：

DataEncrypt 檔案內容如下：

public class DataEncrypt {
    
    public native byte[] decodeBuffer(byte data[], int len);


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

generate_java_head_file.sh 檔案內容如下：

#!/usr/bin/env bash

# packagename.classname
TARGET_CLASS_NAME="包名.DataEncrypt"

PROJECT_PATH=`cd ../ && pwd`

SOURCE_PATH="${PROJECT_PATH}/java"
TARGET_PATH="${PROJECT_PATH}/jni"

cd "${SOURCE_PATH}"
javah -d ${TARGET_PATH} -classpath "${SOURCE_PATH}" "${TARGET_CLASS_NAME}"
 

命令列執行./generate_java_head_file.sh, 即可生成對應的.h檔案