diff --git a/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/Text2vecServiceImpl.java b/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/Text2vecServiceImpl.java
index f1b2b36c..55917fc4 100644
--- a/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/Text2vecServiceImpl.java
+++ b/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/Text2vecServiceImpl.java
@@ -85,7 +85,7 @@ public class Text2vecServiceImpl implements Text2vecService {
 
         Assert.notEmpty(text2vecMatchesReq.getQuerySentence(), "querySentence不能为空");
 
-        String path = Objects.isNull(text2vecMatchesReq.getThreshold()) ? MATCHES_PATH : GET_ALL_SIMILARITIES_PATH;
+        String path = Objects.nonNull(text2vecMatchesReq.getThreshold()) ? MATCHES_PATH : GET_ALL_SIMILARITIES_PATH;
         String url = TEXT2VEC_SERVICE_DOMAIN + path;
         log.info("matches: url is : {},req:{}",url,JSONUtil.toJsonStr(text2vecMatchesReq));