完成会话列表查询

src/main/java/com/bao/dating/controller/ChatController.java

@@ -7,6 +7,7 @@ import com.bao.dating.context.UserContext;
 import com.bao.dating.pojo.dto.ChatCursorPageDTO;
 import com.bao.dating.pojo.dto.ChatHistoryQueryDTO;
 import com.bao.dating.pojo.vo.ChatRecordsVO;
+import com.bao.dating.pojo.vo.ChatSessionsVO;
 import com.bao.dating.service.ChatService;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -46,5 +47,14 @@ public class ChatController {
         return Result.success(ResultCode.SUCCESS, "获取聊天记录成功", history);
     }
 
-
+    /**
+     * 获取会话列表
+     * @return 会话列表
+     */
+    @GetMapping("/sessions")
+    public Result<List<ChatSessionsVO>> getSessionList() {
+        Long currentUserId = UserContext.getUserId();
+        List<ChatSessionsVO> list = chatService.getSessionList(currentUserId);
+        return Result.success(ResultCode.SUCCESS, "获取会话列表成功", list);
+    }
 }

src/main/java/com/bao/dating/controller/UserController.java

@@ -4,12 +4,11 @@ import com.bao.dating.anno.Log;
 import com.bao.dating.common.Result;
 import com.bao.dating.common.ResultCode;
 import com.bao.dating.context.UserContext;
-import com.bao.dating.pojo.dto.UserInfoUpdateDTO;
+import com.bao.dating.pojo.dto.UserInfoDTO;
 import com.bao.dating.pojo.dto.UserLoginDTO;
 import com.bao.dating.pojo.vo.UserInfoVO;
 import com.bao.dating.pojo.vo.UserLoginVO;
 import com.bao.dating.service.UserService;
-import io.jsonwebtoken.Jwt;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
@@ -91,7 +90,7 @@ public class UserController {
      */
     @Log
     @PostMapping("/info/update")
-    public Result<UserInfoVO> userInfoUpdate(@RequestBody UserInfoUpdateDTO userInfoUpdateDTO) {
+    public Result<UserInfoVO> userInfoUpdate(@RequestBody UserInfoDTO userInfoUpdateDTO) {
         Long userId = UserContext.getUserId();
         userInfoUpdateDTO.setUserId(userId);
         UserInfoVO userInfoVO =userService.updateUserInfo(userInfoUpdateDTO);

src/main/java/com/bao/dating/mapper/ChatSessionsMapper.java

@@ -6,35 +6,24 @@ import com.bao.dating.pojo.entity.ChatSessions;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 
+import java.util.List;
+
 @Mapper
 public interface ChatSessionsMapper {
-    /**
-     * 如果发送方不存在会话则创建
-     * @param chatSessions 会话
-     * @return 影响行数
-     */
-    int insertIfNotExistsForSender(ChatSessions chatSessions);
 
     /**
-     * 如果接收方不存在会话则创建
+     * 如果发送方存在会话则更新，不存在则创建
      * @param chatSessions 会话
      * @return 影响行数
      */
-    int insertIfNotExistsForReceiver(ChatSessions chatSessions);
+    int upsertSessionForSender(ChatSessions chatSessions);
 
     /**
-     *  更新发送方的会话信息
+     * 如果接收方存在会话则更新，不存在则创建
      * @param chatSessions 会话
      * @return 影响行数
      */
-    int updateSessionForSender(ChatSessions chatSessions);
+    int upsertSessionForReceiver(ChatSessions chatSessions);
-
-    /**
-     *  更新接收方的会话信息
-     *  @param chatSessions 会话
-     *  @return 影响行数
-     */
-    int updateSessionForReceiver(ChatSessions chatSessions);
 
     /**
      *  清空会话的未读数
@@ -46,4 +35,11 @@ public interface ChatSessionsMapper {
             @Param("userId") Long userId,
             @Param("targetUserId") Long targetUserId
     );
+
+    /**
+     * 查询当前用户的会话列表
+     * @param userId 当前用户ID
+     * @return 会话列表
+     */
+    List<ChatSessions> selectSessionsByUserId(@Param("userId") Long userId);
 }

src/main/java/com/bao/dating/mapper/UserMapper.java

@@ -1,6 +1,6 @@
 package com.bao.dating.mapper;
 
-import com.bao.dating.pojo.dto.UserInfoUpdateDTO;
+import com.bao.dating.pojo.dto.UserInfoDTO;
 import com.bao.dating.pojo.entity.User;
 import org.apache.ibatis.annotations.Mapper;
 
@@ -31,6 +31,6 @@ public interface UserMapper {
      * 更新用户信息
      * @param userInfoUpdateDTO 用户信息更新参数
      */
-    void updateUserInfoByUserId(UserInfoUpdateDTO userInfoUpdateDTO);
+    void updateUserInfoByUserId(UserInfoDTO userInfoUpdateDTO);
 
 }

src/main/java/com/bao/dating/pojo/dto/UserInfoDTO.java

@@ -8,11 +8,11 @@ import java.time.LocalDateTime;
 import java.util.List;
 
 /**
- * 用户信息更新数据传输对象
+ * 用户信息数据传输对象
  * @author KilLze
  */
 @Data
-public class UserInfoUpdateDTO implements Serializable {
+public class UserInfoDTO implements Serializable {
     private Long userId;
     private String userName;
     private String nickname;

src/main/java/com/bao/dating/pojo/dto/UserNicknameDTO.java

@@ -1,13 +0,0 @@
-package com.bao.dating.pojo.dto;
-
-import lombok.Data;
-
-/**
- * 用户昵称数据传输对象
- * @author KilLze
- */
-@Data
-public class UserNicknameDTO {
-    private Long userId;
-    private String nickname;
-}

src/main/java/com/bao/dating/pojo/vo/ChatSessionsVO.java

@@ -13,20 +13,18 @@ public class ChatSessionsVO {
 
     /** 会话ID */
     private Long sessionId;
-    /** 当前用户ID */
-    private Long userId;
     /** 对方用户ID */
     private Long targetUserId;
     /** 会话名称 */
     private String sessionName;
+    /** 对方用户头像 */
+    private String avatarUrl;
     /** 最后一条消息内容 */
     private String lastMessageContent;
     /** 最后一条消息时间 */
     private LocalDateTime lastMessageTime;
     /** 未读消息数量 */
     private Integer unreadCount;
-    /** 会话状态 */
-    private Integer sessionStatus;
     /** 置顶状态 */
     private Integer topStatus;
     /** 免打扰状态 */

src/main/java/com/bao/dating/service/ChatService.java

@@ -4,6 +4,7 @@ import com.bao.dating.common.result.PageResult;
 import com.bao.dating.pojo.dto.ChatHistoryQueryDTO;
 import com.bao.dating.pojo.dto.ChatRecordSendDTO;
 import com.bao.dating.pojo.vo.ChatRecordsVO;
+import com.bao.dating.pojo.vo.ChatSessionsVO;
 
 import java.time.LocalDateTime;
 import java.util.List;
@@ -35,4 +36,11 @@ public interface ChatService {
      * @param targetUserId 目标用户ID
      */
     void markChatMessagesAsRead(Long currentUserId, Long targetUserId);
+
+    /**
+     * 获取会话列表
+     * @param currentUserId 当前用户ID
+     * @return 会话列表
+     */
+    List<ChatSessionsVO> getSessionList(Long currentUserId);
 }

src/main/java/com/bao/dating/service/UserService.java

@@ -1,8 +1,7 @@
 package com.bao.dating.service;
 
-import com.bao.dating.pojo.dto.UserInfoUpdateDTO;
+import com.bao.dating.pojo.dto.UserInfoDTO;
 import com.bao.dating.pojo.dto.UserLoginDTO;
-import com.bao.dating.pojo.dto.UserNicknameDTO;
 import com.bao.dating.pojo.vo.UserInfoVO;
 import com.bao.dating.pojo.vo.UserLoginVO;
 import org.springframework.web.multipart.MultipartFile;
@@ -52,12 +51,12 @@ public interface UserService {
      * @param userInfoUpdateDTO 用户信息
      * @return 更新后的用户信息
      */
-    UserInfoVO updateUserInfo(UserInfoUpdateDTO userInfoUpdateDTO);
+    UserInfoVO updateUserInfo(UserInfoDTO userInfoUpdateDTO);
 
     /**
-     * 根据用户ID查询用户昵称
+     * 根据用户ID查询用户信息
      * @param userId 用户ID
      * @return 用户
      */
-    UserNicknameDTO getUserNicknameById(Long userId);
+    UserInfoDTO getUserInfoById(Long userId);
 }

src/main/java/com/bao/dating/service/impl/ChatServiceImpl.java

@@ -1,19 +1,17 @@
 package com.bao.dating.service.impl;
 
-import com.bao.dating.common.result.PageResult;
 import com.bao.dating.mapper.ChatRecordsMapper;
 import com.bao.dating.mapper.ChatSessionsMapper;
 import com.bao.dating.pojo.dto.ChatHistoryQueryDTO;
 import com.bao.dating.pojo.dto.ChatMarkReadDTO;
 import com.bao.dating.pojo.dto.ChatRecordSendDTO;
-import com.bao.dating.pojo.dto.UserNicknameDTO;
+import com.bao.dating.pojo.dto.UserInfoDTO;
 import com.bao.dating.pojo.entity.ChatRecords;
 import com.bao.dating.pojo.entity.ChatSessions;
 import com.bao.dating.pojo.vo.ChatRecordsVO;
+import com.bao.dating.pojo.vo.ChatSessionsVO;
 import com.bao.dating.service.ChatService;
 import com.bao.dating.service.UserService;
-import com.github.pagehelper.PageHelper;
-import com.github.pagehelper.PageInfo;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -63,13 +61,13 @@ public class ChatServiceImpl implements ChatService {
         // 插入消息记录
         chatRecordsMapper.insert(record);
 
-        // 创建接收方会话
+        // 创建发送方会话
         ChatSessions sessions = new ChatSessions();
         sessions.setUserId(senderUserId);
         sessions.setTargetUserId(dto.getReceiverUserId());
         // 获取接收方昵称作为发送方会话名称
         try {
-            UserNicknameDTO receiverNicknameInfo = userService.getUserNicknameById(dto.getReceiverUserId());
+            UserInfoDTO receiverNicknameInfo = userService.getUserInfoById(dto.getReceiverUserId());
             if (receiverNicknameInfo != null && receiverNicknameInfo.getNickname() != null) {
                 sessions.setSessionName(receiverNicknameInfo.getNickname());
             } else {
@@ -84,14 +82,13 @@ public class ChatServiceImpl implements ChatService {
         sessions.setLastMessageContent(record.getMessageContent());
         sessions.setLastMessageTime(record.getSendTime());
 
-        chatSessionsMapper.insertIfNotExistsForSender(sessions);
+        chatSessionsMapper.upsertSessionForSender(sessions);
-        chatSessionsMapper.updateSessionForSender(sessions);
 
         // 创建接收方会话
         sessions.setUserId(dto.getReceiverUserId());
         sessions.setTargetUserId(senderUserId);
         try {
-            UserNicknameDTO senderNicknameInfo = userService.getUserNicknameById(senderUserId);
+            UserInfoDTO senderNicknameInfo = userService.getUserInfoById(senderUserId);
             if (senderNicknameInfo != null && senderNicknameInfo.getNickname() != null) {
                 sessions.setSessionName(senderNicknameInfo.getNickname());
             } else {
@@ -103,8 +100,8 @@ public class ChatServiceImpl implements ChatService {
             sessions.setSessionName("用户" + senderUserId);
         }
 
-        chatSessionsMapper.insertIfNotExistsForReceiver(sessions);
+        chatSessionsMapper.upsertSessionForReceiver(sessions);
-        chatSessionsMapper.updateSessionForReceiver(sessions);
+
 
 
 
@@ -158,4 +155,28 @@ public class ChatServiceImpl implements ChatService {
         );
     }
 
+    /**
+     * 获取会话列表
+     * @return 会话列表
+     */
+    @Override
+    public List<ChatSessionsVO> getSessionList(Long currentUserId) {
+        List<ChatSessions> sessions = chatSessionsMapper.selectSessionsByUserId(currentUserId);
+
+        return sessions.stream().map(session -> {
+            ChatSessionsVO vo = new ChatSessionsVO();
+            BeanUtils.copyProperties(session, vo);
+
+            UserInfoDTO targetUser = userService.getUserInfoById(session.getTargetUserId());
+            if (targetUser != null){
+                vo.setSessionName(targetUser.getNickname());
+                vo.setAvatarUrl(targetUser.getAvatarUrl());
+            }else {
+                vo.setSessionName("用户" + session.getTargetUserId());
+                vo.setAvatarUrl(null);
+            }
+            return vo;
+        }).collect(Collectors.toList());
+    }
+
 }

src/main/java/com/bao/dating/service/impl/UserServiceImpl.java

@@ -5,12 +5,10 @@ import com.bao.dating.common.aliyun.GreenImageScan;
 import com.bao.dating.common.aliyun.GreenTextScan;
 import com.bao.dating.common.result.AliOssResult;
 import com.bao.dating.common.result.GreenAuditResult;
-import com.bao.dating.config.RedisConfig;
 import com.bao.dating.context.UserContext;
 import com.bao.dating.mapper.UserMapper;
-import com.bao.dating.pojo.dto.UserInfoUpdateDTO;
+import com.bao.dating.pojo.dto.UserInfoDTO;
 import com.bao.dating.pojo.dto.UserLoginDTO;
-import com.bao.dating.pojo.dto.UserNicknameDTO;
 import com.bao.dating.pojo.entity.User;
 import com.bao.dating.pojo.vo.UserInfoVO;
 import com.bao.dating.pojo.vo.UserLoginVO;
@@ -232,7 +230,7 @@ public class UserServiceImpl implements UserService {
      * @param userInfoUpdateDTO 用户信息更新参数
      */
     @Override
-    public UserInfoVO updateUserInfo(UserInfoUpdateDTO userInfoUpdateDTO) {
+    public UserInfoVO updateUserInfo(UserInfoDTO userInfoUpdateDTO) {
         Long userId = userInfoUpdateDTO.getUserId();
         User user = userMapper.selectByUserId(userId);
         if (user == null) {
@@ -314,19 +312,19 @@ public class UserServiceImpl implements UserService {
     }
 
     /**
-     * 根据用户ID获取用户昵称
+     * 根据用户ID获取用户昵称和头像
      *
      * @param userId 用户ID
      * @return 用户昵称
      */
     @Override
-    public UserNicknameDTO getUserNicknameById(Long userId) {
+    public UserInfoDTO getUserInfoById(Long userId) {
         // 查询数据库获取昵称
         User user = userMapper.selectByUserId(userId);
         if (user == null) {
             throw new RuntimeException("没有此用户");
         }
-        UserNicknameDTO dto = new UserNicknameDTO();
+        UserInfoDTO dto = new UserInfoDTO();
         dto.setUserId(user.getUserId());
         dto.setNickname(user.getNickname());
         return dto;

src/main/resources/com/bao/dating/mapper/ChatSessionsMapper.xml

@@ -3,61 +3,41 @@
         "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="com.bao.dating.mapper.ChatSessionsMapper">
 
-    <!-- 如果发送方不存在会话则创建 -->
+    <!-- 插入或更新发送方会话 -->
-    <insert id="insertIfNotExistsForSender" parameterType="com.bao.dating.pojo.entity.ChatSessions">
+    <insert id="upsertSessionForSender" parameterType="com.bao.dating.pojo.entity.ChatSessions">
         INSERT INTO chat_sessions
         (user_id, target_user_id, session_name, last_message_id, last_message_content, last_message_time,
         unread_count, session_status, top_status, mute_status, created_at, updated_at)
-        SELECT
+        VALUES
+        (
             #{userId}, #{targetUserId}, #{sessionName}, #{lastMessageId}, #{lastMessageContent}, #{lastMessageTime},
             0, 1, 0, 0, NOW(), NOW()
-        FROM DUAL
-        WHERE NOT EXISTS (
-            SELECT 1 FROM chat_sessions
-            WHERE user_id = #{userId} AND target_user_id = #{targetUserId}
-        );
-    </insert>
-
-    <!-- 如果接收方不存在会话则创建 -->
-    <insert id="insertIfNotExistsForReceiver" parameterType="com.bao.dating.pojo.entity.ChatSessions">
-        INSERT INTO chat_sessions
-        (user_id, target_user_id, session_name, last_message_id, last_message_content, last_message_time,
-         unread_count, session_status, top_status, mute_status, created_at, updated_at)
-        SELECT
-            #{userId}, #{targetUserId}, #{sessionName}, #{lastMessageId}, #{lastMessageContent}, #{lastMessageTime},
-            0, 1, 0, 0, NOW(), NOW()
-        FROM DUAL
-        WHERE NOT EXISTS (
-            SELECT 1 FROM chat_sessions
-            WHERE user_id = #{userId} AND target_user_id = #{targetUserId}
         )
+        ON DUPLICATE KEY UPDATE
+        last_message_id = VALUES(last_message_id),
+        last_message_content = VALUES(last_message_content),
+        last_message_time = VALUES(last_message_time),
+        unread_count = 0,
+        updated_at = NOW();
     </insert>
 
-    <!-- 更新发送方的会话信息 -->
+    <!-- 插入或更新接收方会话 -->
-    <update id="updateSessionForSender" parameterType="com.bao.dating.pojo.entity.ChatSessions">
+    <insert id="upsertSessionForReceiver" parameterType="com.bao.dating.pojo.entity.ChatSessions">
-        UPDATE chat_sessions
+        INSERT INTO chat_sessions
-        SET
+        (user_id, target_user_id, session_name, last_message_id, last_message_content, last_message_time,
-        last_message_id = #{lastMessageId},
+        unread_count, session_status, top_status, mute_status, created_at, updated_at)
-        last_message_content = #{lastMessageContent},
+        VALUES
-        last_message_time = #{lastMessageTime},
+        (
-        unread_count = 0,
+            #{userId}, #{targetUserId}, #{sessionName}, #{lastMessageId}, #{lastMessageContent}, #{lastMessageTime},
-        updated_at = NOW()
+            1, 1, 0, 0, NOW(), NOW()
-        WHERE user_id = #{userId}
+        )
-        AND target_user_id = #{targetUserId};
+        ON DUPLICATE KEY UPDATE
-    </update>
+        last_message_id = VALUES(last_message_id),
-
+        last_message_content = VALUES(last_message_content),
-    <!-- 更新接收方的会话信息 -->
+        last_message_time = VALUES(last_message_time),
-    <update id="updateSessionForReceiver" parameterType="com.bao.dating.pojo.entity.ChatSessions">
-        UPDATE chat_sessions
-        SET
-            last_message_id = #{lastMessageId},
-            last_message_content = #{lastMessageContent},
-            last_message_time = #{lastMessageTime},
         unread_count = unread_count + 1,
-            updated_at = NOW()
+        updated_at = NOW();
-        WHERE user_id = #{userId}
+    </insert>
-          AND target_user_id = #{targetUserId}
-    </update>
 
     <!-- 清空未读消息数 -->
     <update id="clearUnreadCount">
@@ -70,4 +50,14 @@
           AND target_user_id = #{targetUserId}
           AND session_status = 1
     </update>
+
+    <!-- 查询会话列表 -->
+    <select id="selectSessionsByUserId" resultType="com.bao.dating.pojo.entity.ChatSessions">
+        SELECT session_id, target_user_id, session_name, last_message_content,
+               last_message_time, unread_count, top_status, mute_status
+        FROM chat_sessions
+        WHERE user_id = #{userId}
+          AND session_status = 1
+        ORDER BY top_status DESC, last_message_time DESC
+    </select>
 </mapper>