+ [增加表单提交后会话删除功能]

backend/src/main/java/pangea/hiagent/web/repository/AgentDialogueRepository.java

 package pangea.hiagent.web.repository;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Delete;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Select;
 import pangea.hiagent.model.AgentDialogue;
 
 /**
@@ -9,4 +11,6 @@ import pangea.hiagent.model.AgentDialogue;
  */
 @Mapper
 public interface AgentDialogueRepository extends BaseMapper<AgentDialogue> {
+    @Delete("DELETE FROM agent_dialogue WHERE user_id = #{userId} AND agent_id=#{agentId} ")
+    public void deleteDialogue(String userId,String agentId);
 }

backend/src/main/java/pangea/hiagent/web/service/ChatService.java

 package pangea.hiagent.web.service;
 
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import pangea.hiagent.web.repository.AgentDialogueRepository;
 
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
@@ -10,6 +12,9 @@ import java.util.concurrent.ConcurrentMap;
 @Service
 public class ChatService {
 
+    @Autowired
+    private AgentDialogueRepository agentDialogueRepository;
+
     private final ConcurrentMap<String,String> chatList = new ConcurrentHashMap<>(1024);
 
     public boolean chatExists(String userId,String agentId) {
@@ -26,6 +31,7 @@ public class ChatService {
         String chatId = buildChatId(userId,agentId);
         log.info("remove chatId:{}",chatId);
         chatList.remove(chatId);
+        agentDialogueRepository.deleteDialogue(userId,agentId);
     }
 
     private String buildChatId(String userId,String agentId) {