fix:文件获取base64

hzims-service/gglm-big-model/src/main/java/com/hnac/gglm/bigmodel/zhipuai/service/impl/ZhipuAnalysisServiceImpl.java

@@ -105,7 +105,7 @@ public class ZhipuAnalysisServiceImpl implements ZhipuAnalysisService {
             throw ErrorCode.GET_FILE_CONTENT_FAILURE.throwException();
         });
         try {
-            return FileUtil.getBase64(request.getFilePath());
+            return FileUtil.getFileBase64(request.getFilePath());
         } catch (IOException e) {
             throw ErrorCode.GET_FILE_CONTENT_FAILURE.throwException();
         }