diff --git a/pom.xml b/pom.xml
index ba855e2..4ba611b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -150,6 +150,10 @@
             <optional>true</optional>
             <version>1.18.40</version>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
     </dependencies>
     <dependencyManagement>
         <dependencies>
diff --git a/src/main/java/com/realtime/controller/ChatListController.java b/src/main/java/com/realtime/controller/ChatListController.java
index b503ffa..394d285 100644
--- a/src/main/java/com/realtime/controller/ChatListController.java
+++ b/src/main/java/com/realtime/controller/ChatListController.java
@@ -4,6 +4,7 @@ package com.realtime.controller;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.realtime.model.pojo.ChatList;
 import com.realtime.model.query.ChatListPageQueryReq;
+import com.realtime.model.query.GetSessionIdReq;
 import com.realtime.service.ChatListService;
 import com.realtime.sysconst.Result;
 import com.realtime.vo.ChatListInfoVo;
@@ -44,4 +45,9 @@ public class ChatListController {
     Result<String> updateChatList(@RequestBody List<ChatList> chatList){
         return chatListService.updateChatListFName(chatList);
     }
+
+    @PostMapping("/querySessionId")
+    Result<Long> querySessionId(@RequestBody GetSessionIdReq getSessionIdReq){
+        return chatListService.querySessionId(getSessionIdReq);
+    }
 }
diff --git a/src/main/java/com/realtime/mappers/ChatListMapper.java b/src/main/java/com/realtime/mappers/ChatListMapper.java
index 8c9550f..64db27e 100644
--- a/src/main/java/com/realtime/mappers/ChatListMapper.java
+++ b/src/main/java/com/realtime/mappers/ChatListMapper.java
@@ -5,6 +5,7 @@ import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.realtime.model.pojo.ChatList;
 import com.realtime.model.query.ChatListPageQueryReq;
+import com.realtime.model.query.GetSessionIdReq;
 import com.realtime.vo.ChatListInfoVo;
 import org.apache.ibatis.annotations.Param;
 
@@ -15,6 +16,8 @@ public interface ChatListMapper extends BaseMapper<ChatList> {
     IPage<ChatListInfoVo> getChatList(@Param("reqPage") IPage<ChatListPageQueryReq> page, @Param("req") ChatListPageQueryReq chatListPageQueryReq);
 
     void deleteFriend(@Param("id") String id,@Param("receiver") String receiver);
+
+    Long querySessionId(@Param("req") GetSessionIdReq getSessionIdReq);
 }
 
 
diff --git a/src/main/java/com/realtime/model/query/BaseTeamReq.java b/src/main/java/com/realtime/model/query/BaseTeamReq.java
index fb84dcd..69528ce 100644
--- a/src/main/java/com/realtime/model/query/BaseTeamReq.java
+++ b/src/main/java/com/realtime/model/query/BaseTeamReq.java
@@ -15,5 +15,5 @@ public class BaseTeamReq implements Serializable {
      * 访问令牌
      */
     @JsonProperty("access_token")
-    private String accessToken = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyIjoiNjhlNzY0ZjBmOTU0ODg3MWMyMmY5M2I4IiwibGFzdExvZ2luIjoiMTc2NTQzNDMyNy41MjA5ODYifQ.Vj0ovpCsziFzeR2qroYnN-3KevR78krx-rDFQ9BKlgU";
+    private String accessToken;
 }
diff --git a/src/main/java/com/realtime/model/query/GetSessionIdReq.java b/src/main/java/com/realtime/model/query/GetSessionIdReq.java
new file mode 100644
index 0000000..8096b07
--- /dev/null
+++ b/src/main/java/com/realtime/model/query/GetSessionIdReq.java
@@ -0,0 +1,9 @@
+package com.realtime.model.query;
+
+import lombok.Data;
+
+@Data
+public class GetSessionIdReq {
+    private String senderId;
+    private String receiverId;
+}
diff --git a/src/main/java/com/realtime/service/ChatListService.java b/src/main/java/com/realtime/service/ChatListService.java
index cd47b8a..0a17fd9 100644
--- a/src/main/java/com/realtime/service/ChatListService.java
+++ b/src/main/java/com/realtime/service/ChatListService.java
@@ -5,6 +5,7 @@ import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.realtime.model.pojo.ChatList;
 import com.realtime.model.query.ChatListPageQueryReq;
+import com.realtime.model.query.GetSessionIdReq;
 import com.realtime.sysconst.Result;
 import com.realtime.vo.ChatListInfoVo;
 
@@ -25,4 +26,6 @@ public interface ChatListService extends IService<ChatList> {
 
 
      Result<String> deleteSignChatList(ChatList ids);
+
+    Result<Long> querySessionId(GetSessionIdReq getSessionIdReq);
 }
diff --git a/src/main/java/com/realtime/service/impl/ChatListServiceImpl.java b/src/main/java/com/realtime/service/impl/ChatListServiceImpl.java
index 2dff14b..c29e112 100644
--- a/src/main/java/com/realtime/service/impl/ChatListServiceImpl.java
+++ b/src/main/java/com/realtime/service/impl/ChatListServiceImpl.java
@@ -9,6 +9,7 @@ import com.realtime.mappers.ChatListMapper;
 import com.realtime.model.pojo.ChatList;
 import com.realtime.model.pojo.FriendRelationship;
 import com.realtime.model.query.ChatListPageQueryReq;
+import com.realtime.model.query.GetSessionIdReq;
 import com.realtime.service.ChatListService;
 import com.realtime.service.FriendRelationshipService;
 import com.realtime.sysconst.Result;
@@ -140,6 +141,11 @@ public class ChatListServiceImpl extends ServiceImpl<ChatListMapper, ChatList>
         return Result.success("ok");
     }
 
+    @Override
+    public Result<Long> querySessionId(GetSessionIdReq getSessionIdReq) {
+        return Result.success(baseMapper.querySessionId(getSessionIdReq));
+    }
+
 
 }
 
diff --git a/src/main/java/com/realtime/service/impl/FileServiceImpl.java b/src/main/java/com/realtime/service/impl/FileServiceImpl.java
index a5ee7e9..9eba3ce 100644
--- a/src/main/java/com/realtime/service/impl/FileServiceImpl.java
+++ b/src/main/java/com/realtime/service/impl/FileServiceImpl.java
@@ -69,7 +69,7 @@ public class FileServiceImpl implements FileService {
         String originalFilename = file.getOriginalFilename();
         assert originalFilename != null;
         UploadVo uploadVo = new UploadVo();
-        String storeFileName = originalFilename + Instant.now().getEpochSecond();
+        String storeFileName =  Instant.now().getEpochSecond() +originalFilename;
         String url = generateFileUrl(storeFileName);
         uploadVo.setName(originalFilename);
         uploadVo.setUrl(url);
diff --git a/src/main/java/com/realtime/utils/SessionUtils.java b/src/main/java/com/realtime/utils/SessionUtils.java
index b6710a4..762d25f 100644
--- a/src/main/java/com/realtime/utils/SessionUtils.java
+++ b/src/main/java/com/realtime/utils/SessionUtils.java
@@ -14,6 +14,7 @@ public class SessionUtils {
 
     public static final Map<String, Channel> userIdChannelMap = new ConcurrentHashMap<>();
 
+
     /**
      * groupId ---> channelgroup 群聊ID和群聊ChannelGroup映射
      */
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 5b3a75e..0528726 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -11,7 +11,7 @@ file:
   picMaxSize: 104857600   # 100MB
   picMaxCount: 1
   picAllowedFormats: png,jpg
-  allowedFormats: doc,docx,xls,xlsx,ppt,pptx,txt,jpg,jpeg,png,gif,svg,mp3,mp4,zip,rar,exe,dmg,apk,md
+  allowedFormats: doc,docx,xls,xlsx,ppt,pptx,txt,jpg,jpeg,png,gif,svg,mp3,mp4,zip,rar,exe,dmg,apk,md,py,html
 spring:
   servlet:
     multipart:
diff --git a/src/main/resources/mappers/ChatListMapper.xml b/src/main/resources/mappers/ChatListMapper.xml
index df8318a..169a4d0 100644
--- a/src/main/resources/mappers/ChatListMapper.xml
+++ b/src/main/resources/mappers/ChatListMapper.xml
@@ -13,7 +13,10 @@
     </sql>
 
     <delete id="deleteFriend">
-        delete from chat_list lt  where lt.sender = #{id} and lt.receiver = #{receiver}
+        delete
+        from chat_list lt
+        where lt.sender = #{id}
+          and lt.receiver = #{receiver}
     </delete>
 
     <resultMap id="getChatListMap" type="chatListInfoVo"/>
@@ -35,4 +38,10 @@
         from chat_list ch
         where ch.sender = #{req.sendId}
     </select>
+    <select id="querySessionId" resultType="java.lang.Long">
+        select session_id
+        from chat_list ch
+        where ch.sender = #{req.senderId}
+          and ch.receiver = #{req.receiverId}
+    </select>
 </mapper>