1. fix chat bug

src/main/java/com/supervision/police/service/impl/ChatServiceImpl.java

@@ -1,6 +1,7 @@
 package com.supervision.police.service.impl;
 
 import cn.hutool.core.lang.Assert;
+import cn.hutool.core.util.StrUtil;
 import com.supervision.chat.client.LangChainChatService;
 import com.supervision.chat.client.dto.chat.ChatReqDTO;
 import com.supervision.chat.client.dto.chat.ChatResDTO;
@@ -13,6 +14,9 @@ import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @Slf4j
 @Service
 @RequiredArgsConstructor
@@ -39,8 +43,14 @@ public class ChatServiceImpl implements ChatService {
         ChatResDTO chat = langChainChatService.chat(
                 ChatReqDTO.create(chatReqVO.getQuery(), modelCase.getCaseNo(),chatReqVO.getHistory()));
 
-        Assert.notNull(chat, "我暂时还不知道怎么回答，您可以尝试换一种问法！");
+        if (null ==chat){
-        Assert.notEmpty(chat.getAnswer(), "我暂时还不知道怎么回答，您可以尝试换一种问法！");
+            chat = new ChatResDTO();
+        }
+        if (StrUtil.isEmpty(chat.getAnswer())){
+            chat.setAnswer("我暂时还不知道怎么回答，您可以尝试换一种问法！");
+            chat.setDocs(new ArrayList<>(1));
+        }
+
         log.info("chat: caseNo:{},query{},answer:{}", modelCase.getCaseNo(), chatReqVO.getQuery(),chat.getAnswer());
 
         return new ChatResVO(chat);