diff --git a/src/main/java/cn/teammodel/dao/ChatSessionRepository.java b/src/main/java/cn/teammodel/dao/ChatSessionRepository.java
new file mode 100644
index 0000000..c47f18a
--- /dev/null
+++ b/src/main/java/cn/teammodel/dao/ChatSessionRepository.java
@@ -0,0 +1,19 @@
+package cn.teammodel.dao;
+
+import cn.teammodel.model.entity.school.Teacher;
+import com.azure.spring.data.cosmos.repository.CosmosRepository;
+import com.azure.spring.data.cosmos.repository.Query;
+import org.springframework.stereotype.Repository;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * @author winter
+ * @create 2023-11-28 17:39
+ */
+@Repository
+public interface TeacherRepository extends CosmosRepository<Teacher, String> {
+    @Query("select c.id, c.name from Teacher as c where c.code = @code and c.id in (@ids)")
+    List<Teacher> findAllByCodeAndIdIn(String code, Collection<String> ids);
+}
diff --git a/src/main/java/cn/teammodel/model/dto/ai/UpdateSessionDto.java b/src/main/java/cn/teammodel/model/dto/ai/UpdateSessionDto.java
new file mode 100644
index 0000000..9d90116
--- /dev/null
+++ b/src/main/java/cn/teammodel/model/dto/ai/UpdateSessionDto.java
@@ -0,0 +1,5 @@
+package cn.teammodel.model.dto.ai;/**
+@author winter
+@create 2023-12-19 15:42
+*/public class UpdateSessionDto {
+}
diff --git a/src/main/java/cn/teammodel/model/entity/ai/ChatSession.java b/src/main/java/cn/teammodel/model/entity/ai/ChatSession.java
new file mode 100644
index 0000000..5f7e240
--- /dev/null
+++ b/src/main/java/cn/teammodel/model/entity/ai/ChatSession.java
@@ -0,0 +1,5 @@
+package cn.teammodel.model.entity.ai;/**
+@author winter
+@create 2023-12-19 15:09
+*/public class ChatSession {
+}
diff --git a/src/main/java/cn/teammodel/service/ChatSessionService.java b/src/main/java/cn/teammodel/service/ChatSessionService.java
new file mode 100644
index 0000000..adfbdb0
--- /dev/null
+++ b/src/main/java/cn/teammodel/service/ChatSessionService.java
@@ -0,0 +1,5 @@
+package cn.teammodel.service;/**
+@author winter
+@create 2023-12-19 15:30
+*/public interface ChatSessionService {
+}
diff --git a/src/main/java/cn/teammodel/service/impl/ChatSessionServiceImpl.java b/src/main/java/cn/teammodel/service/impl/ChatSessionServiceImpl.java
new file mode 100644
index 0000000..b300827
--- /dev/null
+++ b/src/main/java/cn/teammodel/service/impl/ChatSessionServiceImpl.java
@@ -0,0 +1,5 @@
+package cn.teammodel.service.impl;/**
+@author winter
+@create 2023-12-19 15:31
+*/public class ChatSessionServiceImpl {
+}