feat: 优化

yudao-module-tik/src/main/java/cn/iocoder/yudao/module/tik/voice/service/TikUserVoiceServiceImpl.java

@@ -499,9 +499,9 @@ public class TikUserVoiceServiceImpl implements TikUserVoiceService {
         log.info("[previewVoice][试听，voiceConfigId={}, voiceId={}, userId={}]",
                 voiceConfigId, reqVO.getVoiceId(), userId);
 
-        String voiceId = null;
-        String fileUrl = null;
-        String referenceText = null;
+        String voiceId;
+        String fileUrl;
+        String referenceText;
 
         // 1. 通过语音URL合成
         if (StrUtil.isNotBlank(reqVO.getFileUrl()) && StrUtil.isNotBlank(reqVO.getTranscriptionText())) {
@@ -510,6 +510,7 @@ public class TikUserVoiceServiceImpl implements TikUserVoiceService {
                     ? reqVO.getFileUrl()
                     : fileApi.presignGetUrl(rawFileUrl, PRESIGN_URL_EXPIRATION_SECONDS);
             referenceText = reqVO.getTranscriptionText();
+            voiceId = null;
         }
         // 2. 用户配音
         else if (voiceConfigId != null) {
@@ -518,8 +519,10 @@ public class TikUserVoiceServiceImpl implements TikUserVoiceService {
                 throw exception(VOICE_NOT_EXISTS, "配音不存在");
             }
 
-            if (StrUtil.isNotBlank(voice.getVoiceId())) {
-                voiceId = voice.getVoiceId();
+            voiceId = voice.getVoiceId();
+            if (StrUtil.isNotBlank(voiceId)) {
+                fileUrl = null;
+                referenceText = null;
             } else {
                 FileDO fileDO = fileMapper.selectById(voice.getFileId());
                 if (fileDO == null) {
@@ -538,14 +541,14 @@ public class TikUserVoiceServiceImpl implements TikUserVoiceService {
             if (StrUtil.isBlank(voiceId)) {
                 throw exception(VOICE_NOT_EXISTS, "系统配音音色ID不能为空");
             }
+            fileUrl = null;
+            referenceText = null;
         }
 
-        // 统一处理：使用前端传入的 inputText，否则使用默认试听文本
         String finalText = StrUtil.blankToDefault(reqVO.getInputText(), getPreviewText());
-
         String instruction = reqVO.getInstruction();
-        Float speechRate = reqVO.getSpeechRate() != null ? reqVO.getSpeechRate() : 1.0f;
-        Float volume = reqVO.getVolume() != null ? reqVO.getVolume() : 0f;
+        Float speechRate = ObjectUtil.defaultIfNull(reqVO.getSpeechRate(), 1.0f);
+        Float volume = ObjectUtil.defaultIfNull(reqVO.getVolume(), 0f);
         String audioFormat = StrUtil.blankToDefault(reqVO.getAudioFormat(), "mp3");
 
         // 缓存