1、准备好.so文件

2、java代码引入jna jar包

<dependency><groupId>net.java.dev.jna</groupId><artifactId>jna</artifactId><version>5.9.0</version>
</dependency>

3、代码实现

package com.jimi.tracker.util;import com.google.common.collect.Lists;
import com.sun.jna.Library;
import com.sun.jna.Native;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.Enumeration;
import java.util.List;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;/*** Description：* <p>* SO的* </p>** @Author： leo.xiong* @CreateDate： 2023/12/27 20:19* @Email： xionglang@xxx.com* @Since：*/
public class JnaUtil {private static final Logger LOGGER = LoggerFactory.getLogger(JnaUtil.class);private static final String OS;private static final boolean IS_WIN;private static final String ENCODE = "encode";private static final String USR_LIB_JIMI_SO = "/usr/lib/jimi";private static final String SO = ".so";/*** 需要使用的so文件*/private static final List<String> SO_NAME_LIST = Lists.newArrayList(ENCODE);static {OS = System.getProperty("os.name").toUpperCase();IS_WIN = OS.contains("WIN");if (!IS_WIN) {//动态设置JNA参数，如果不动态设置，需要通过-Djna.library.path=/usr/lib/jimi/so 指定JVM参数，so文件名需要lib开头//System.setProperty("jna.library.path", USR_LIB_JIMI_SO + "/so");//在当前jar包的resouce/so文件夹，把so文件放入其中extractSoFromJar(JnaUtil.class.getProtectionDomain().getCodeSource().getLocation().getPath(), USR_LIB_JIMI_SO);}}/*** 加载Jar包中的so文件** @param jarPath* @param extractPath*/private static void extractSoFromJar(String jarPath, String extractPath) {File jarFile = new File(jarPath);try (JarFile jar = new JarFile(jarFile)) {Enumeration<JarEntry> entries = jar.entries();while (entries.hasMoreElements()) {JarEntry entry = entries.nextElement();if (!entry.getName().toLowerCase().endsWith(SO)) {continue;}boolean isCopy = false;for (String soName : SO_NAME_LIST) {if (entry.getName().contains(soName)) {isCopy = true;}}if (!isCopy) {continue;}File outputFile = new File(extractPath, entry.getName());if (outputFile.exists()) {//文件已存在，先删除旧的so文件LOGGER.info("文件已存在，先删除旧的so文件：{}", extractPath + "/" + entry.getName());outputFile.delete();}outputFile = new File(extractPath, entry.getName());if (!outputFile.getParentFile().exists()) {outputFile.getParentFile().mkdirs();}try (InputStream is = jar.getInputStream(entry);OutputStream os = new FileOutputStream(outputFile)) {byte[] buffer = new byte[1024];while (is.read(buffer) > 0) {os.write(buffer);}} catch (IOException ioException) {LOGGER.warn("读取.so文件失败 fileName: {}", entry.getName(), ioException);}}} catch (IOException ioException) {LOGGER.warn("获取.so库失败 jarPath: {} extractPath: {}", jarPath, extractPath, ioException);}}/*** 调用C加密库** @param imei* @param chipId* @param type* @return*/public static String encryptValue(String imei, String chipId, Integer type) {//返回值最大32个字节，根据实际情况设置，后面trim去掉未使用的字节位置byte[] encryptBytes = new byte[32];try {if (IS_WIN) {return imei;}EncodeLibrary.INSTANCE.ImeiChipEncrypt(encryptBytes, imei, chipId, type);} catch (Exception e) {LOGGER.warn("加密值获取错误 imei:{} chipId: {} type: {}", imei, chipId, type, e);return null;}return new String(encryptBytes, StandardCharsets.UTF_8).trim();}/*** 调用加密方法*/public interface EncodeLibrary extends Library {/*** 加密文件名称，指定 JVM参数，文件放在这个路径下面 -Djna.library.path=/usr/lib* linux 文件名使用lib开头，如文件名【libencode.so】，加载的时候需要去掉lib，使用【encode】*/EncodeLibrary INSTANCE = Native.load(ENCODE, EncodeLibrary.class);/*** 调用C++加密方法，名称跟.h文件相同** @param output* @param imei* @param chip* @param mode*/void ImeiChipEncrypt(byte[] output, String imei, String chip, Integer mode);}public static void main(String[] args) {byte[] encryptBytes = new byte[32];EncodeLibrary.INSTANCE.ImeiChipEncrypt(encryptBytes, "123456789123123456789", null, 0);}
}