SpringBoot加载dll文件示例

1、将动态库放在resource文件目录下

2、编写相关加载逻辑

import lombok.extern.slf4j.Slf4j;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.HashMap;/*** @Description: 加载动态库 .dll文件* @author: Be.insighted* @create: 2024/4/15 8:51* @since 1.0.0*/
@Slf4j
public class LoadLibraryUtil {public static void addLibrary() {File file = new File("dll");String absolutePath = file.getAbsolutePath();log.info("add lib:{}",absolutePath);if (!file.exists()) {file.mkdirs();}try {addLibDir(absolutePath);} catch (IOException e1) {e1.printStackTrace();}}public static void addLibrary(String path) {File file = new File(path);String absolutePath = file.getAbsolutePath();log.info("add lib path  from:{}",absolutePath);if (!file.exists()) {file.mkdirs();}try {addLibDir(absolutePath);} catch (IOException e1) {e1.printStackTrace();}}public static void addLibDir(String s) throws IOException {HashMap<String, String> stringStringHashMap = new HashMap<>();stringStringHashMap.put(null, null);try {Field field = ClassLoader.class.getDeclaredField("usr_paths");field.setAccessible(true);String[] paths = (String[]) field.get(null);for (int i = 0; i < paths.length; i++) {if (s.equals(paths[i])) {return;}}String[] tmp = new String[paths.length + 1];System.arraycopy(paths, 0, tmp, 0, paths.length);tmp[paths.length] = s;field.set(null, tmp);} catch (IllegalAccessException e) {throw new IOException("Failed to get permissions to set library path");} catch (NoSuchFieldException e) {throw new IOException("Failed to get field handle to set library path");}}
}

3、测试

import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.Dispatch;
import com.zhuao.vo.TTSVo;
import com.jacob.com.Variant;
import lombok.extern.slf4j.Slf4j;import java.io.File;/*** @Description: 使用加载的dll进行相关测试* @author: Be.insighted* @create: 2024/8/8 8:51* @since 1.0.0*/
@Slf4j
public class MsTtsUtil {public static void main(String[] args) {LoadLibraryUtil.addLibrary();String parentPath = "D:/dev_workspace/java/litong-project/litongjava-windows-tts/target/classes/litongjava-windows-tts/file/auido";File file = new File(parentPath);if (!file.exists()) {file.mkdirs();}TTSVo ttsVo = new TTSVo();ttsVo.setType(6);ttsVo.setVolume(100);ttsVo.setRate(0);ttsVo.setText("今天猪肉又涨价了,一下子涨了两块钱");ttsToFile(ttsVo, parentPath);ttsVo.setText("今天羊肉羊肉也涨价了");ttsToFile(ttsVo, parentPath);// String path = "text\\过秦论.txt";// textToFile(path);}/*** 获取当前发音人*/public static String getCurrentVoice() {// 创建与微软应用程序的新连接。传入的参数是注册表中注册的程序的名称。相当实例化Sapi.SpVoice对象,但是ax并不是Sapi.SpVoice,ax是包装信息,ax包含Sapi.SpVoiceActiveXComponent ax = new ActiveXComponent("Sapi.SpVoice");String currentVoice = getCurrentVoice(ax);ax.safeRelease();return currentVoice;}private static String getCurrentVoice(ActiveXComponent ax) {// 获取Sapi.SpVoice对象的voice属性值,voice的属性值是一个voice对象,对象使用Dispatch包装Dispatch dispatch = ax.getProperty("voice").toDispatch();// 执行voice对象的GetDescription方法,返回值可能使用String,使用Variant包装Variant description = Dispatch.call(dispatch, "GetDescription");return description.toString();}/*** 语音转文字音频* * @param ttsVo*/public static String ttsToFile(TTSVo ttsVo, String parentPath) {ActiveXComponent ax = new ActiveXComponent("Sapi.SpVoice");String filePath = getFilePath(ax, ttsVo, parentPath);try {// 运行时输出语音内容Dispatch spVoice = ax.getObject();// 下面是构建文件流到成语音文件ax = new ActiveXComponent("Sapi.SpFileStream");Dispatch spFileStream = ax.getObject();ax = new ActiveXComponent("Sapi.SpAudioFormat");Dispatch spAudioFormat = ax.getObject();// 设置音频流格式Dispatch.put(spAudioFormat, "Type", ttsVo.getType());// 设置文件输出流格式Dispatch.putRef(spFileStream, "Format", spAudioFormat);// 调用输出 文件流打开方法，创建一个.wav文件Dispatch.call(spFileStream, "Open", new Variant(filePath), new Variant(3), new Variant(true));// 设置声音对象的音频输出流为输出文件对象Dispatch.putRef(spVoice, "AudioOutputStream", spFileStream);// 设置音量 0到100Dispatch.put(spVoice, "Volume", new Variant(ttsVo.getVolume()));// 设置朗读速度Dispatch.put(spVoice, "Rate", new Variant(ttsVo.getRate()));// 开始朗读,实际上是合成得到文件Dispatch.call(spVoice, "Speak", new Variant(ttsVo.getText()));// 关闭输出文件Dispatch.call(spFileStream, "Close");Dispatch.putRef(spVoice, "AudioOutputStream", null);spAudioFormat.safeRelease();spFileStream.safeRelease();spVoice.safeRelease();} catch (Exception e) {e.printStackTrace();} finally {ax.safeRelease();}return filePath;}public static String getFilePath(ActiveXComponent ax, TTSVo ttsVo, String parentPath) {// 文件名规则// voice_type_volume_rate_md5String voice = null;if (ttsVo.getVoice() == null) {voice = getCurrentVoice(ax);} else {voice = ttsVo.getVoice();}String filename = append("_", ttsVo.getType(), ttsVo.getVolume(), ttsVo.getRate());// 添加文件名称filename += "_" + HashUtil.md5(ttsVo.getText());// 添加文件后缀if (ttsVo.getType() == 6) {filename += ".wav";}// 发音人和加目录filename = parentPath + File.separator + voice + "_" + filename;return filename;}private static String append(String string, int... ints) {String retval = new String();for (int i : ints) {retval += "_" + i;}return retval;}
}