如果双方还不是好友，此时创建的会话，会话类型为临时会话，且对方会话不可见

当临时会话创建者发送一条消息后，对方会话可见
当为朋友时，会话升级为单聊类型，双方可见

core/src/main/java/com/wecloud/im/action/NormalChatAction.java

@@ -41,6 +41,7 @@ import com.wecloud.im.param.ChatContentVo;
 import com.wecloud.im.param.ImClientSimpleDto;
 import com.wecloud.im.param.ImConversationQueryVo;
 import com.wecloud.im.param.MsgVo;
+import com.wecloud.im.sdk.enums.ChatTypeEnum;
 import com.wecloud.im.sdk.enums.FriendStateEnum;
 import com.wecloud.im.sdk.enums.GroupRoleEnum;
 import com.wecloud.im.sdk.enums.MutedEnum;
@@ -177,9 +178,17 @@ public class NormalChatAction {
                 continue;
             }
             // 入库 保存收件箱
-            saveImInbox(imApplication, data.getToConversation(), imMessageOnlineSend.getMsgId(),
+            saveImInbox(imApplication, conversation, imMessageOnlineSend.getMsgId(),
                     conversationMembers, SnowflakeUtil.getId());
 
+            // 入库成功后 判断是否是临时会话 如果是，检查接受方的会话display状态是否是1(显示)，如果不是，需要修改为是
+            if (ChatTypeEnum.TEMP.getCode().equals(conversation.getChatType())) {
+                if (conversationMembers.getDisplayStatus().equals(0L)) {
+                    conversationMembers.setDisplayStatus(1L);
+                    imConversationMembersService.updateById(conversationMembers);
+                }
+            }
+
             // 在线用户直接发消息
             sendMsgForOnline(imClientReceiver.getId(), imMessageOnlineSend);
 
@@ -268,12 +277,13 @@ public class NormalChatAction {
      * 入库 保存收件箱
      *
      * @param imApplication
-     * @param toConversationId
+     * @param conversation
      * @param messageId
      * @param conversationMembers
      * @param imInboxId
      */
-    private void saveImInbox(ImApplication imApplication, Long toConversationId, long messageId, ImConversationMembers conversationMembers, long imInboxId) {
+    private void saveImInbox(ImApplication imApplication, ImConversationQueryVo conversation, long messageId,
+                             ImConversationMembers conversationMembers, long imInboxId) {
         ImInbox imInbox = new ImInbox();
         imInbox.setId(imInboxId);
         imInbox.setCreateTime(new Date());
@@ -282,7 +292,7 @@ public class NormalChatAction {
         imInbox.setFkMsgId(messageId);
         imInbox.setReadMsgStatus(0);
         imInbox.setReceiverMsgStatus(0);
-        imInbox.setFkConversationId(toConversationId);
+        imInbox.setFkConversationId(conversation.getId());
         imInboxService.save(imInbox);
     }
 

core/src/main/java/com/wecloud/im/friend/service/ImFriendService.java

@@ -21,11 +21,14 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.core.metadata.OrderItem;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.wecloud.im.entity.ImClient;
+import com.wecloud.im.entity.ImConversation;
+import com.wecloud.im.entity.ImConversationMembers;
 import com.wecloud.im.friend.entity.ImFriend;
 import com.wecloud.im.friend.entity.ImFriendRecommend;
 import com.wecloud.im.friend.mapper.ImFriendMapper;
@@ -36,9 +39,12 @@ import com.wecloud.im.friend.param.ImFriendBaseDto;
 import com.wecloud.im.friend.param.ImFriendPageParam;
 import com.wecloud.im.friend.param.ImFriendRecommendDto;
 import com.wecloud.im.friend.param.UnfriendParam;
+import com.wecloud.im.mapper.ImConversationMapper;
 import com.wecloud.im.param.ImClientSimpleDto;
+import com.wecloud.im.sdk.enums.ChatTypeEnum;
 import com.wecloud.im.sdk.enums.FriendStateEnum;
 import com.wecloud.im.service.ImClientService;
+import com.wecloud.im.service.ImConversationMembersService;
 import com.wecloud.utils.SnowflakeUtil;
 
 /**
@@ -61,6 +67,11 @@ public class ImFriendService extends BaseServiceImpl<ImFriendMapper, ImFriend> {
     @Autowired
     private FriendEventSender friendEventSender;
 
+    @Autowired
+    private ImConversationMapper imConversationMapper;
+
+    private ImConversationMembersService imConversationMembersService;
+
     /**
      * 查看朋友详情
      * @param currentClientId
@@ -161,7 +172,14 @@ public class ImFriendService extends BaseServiceImpl<ImFriendMapper, ImFriend> {
             friend.setState(FriendStateEnum.UNSURE.getCode());
             this.updateByKey(friend);
         }
-
+        // 检查是否存在会话，如果存在 将会话类型修改为1 单聊 双方都显示
+        ImConversation existConversation = imConversationMapper.getRepetitionConversationSingle(currentClient.getId(), friendClient.getId());
+        if (existConversation != null && ChatTypeEnum.TEMP.getCode().equals(existConversation.getChatType())) {
+            existConversation.setChatType(ChatTypeEnum.SINGLE.getCode());
+            imConversationMapper.updateById(existConversation);
+            imConversationMembersService.update(new UpdateWrapper<ImConversationMembers>().set("display_status",
+                    1).eq("fk_conversation_id", existConversation.getId()).eq("fk_appid", existConversation.getFkAppid()));
+        }
         //既然申请好友了，就删除好友推荐
         this.batchDeleteRecommend(currentClient, Collections.singletonList(friendClient.getClientId()));
         this.batchDeleteRecommend(friendClient, Collections.singletonList(currentClient.getClientId()));

core/src/main/java/com/wecloud/im/sdk/enums/ChatTypeEnum.java

@@ -9,10 +9,26 @@ import io.geekidea.springbootplus.framework.common.enums.BaseEnum;
  */
 public enum ChatTypeEnum implements BaseEnum {
 
+    /**
+     * 单聊
+     */
     SINGLE(1, "单聊"),
+    /**
+     * 普通群
+     */
     NORMAL_GROUP(2, "普通群"),
+    /**
+     * 万人群
+     */
     THOUSAND_GROUP(3, "万人群"),
-    CHAT_ROOM(4, "聊天室");
+    /**
+     * 聊天室
+     */
+    CHAT_ROOM(4, "聊天室"),
+    /**
+     * 临时会话
+     */
+    TEMP(5, "临时会话");
 
     private final Integer code;
     private final String desc;

core/src/main/resources/mapper/ImConversationMapper.xml

@@ -24,8 +24,9 @@
     </select>
 
     <select id="getMyImConversationListAndMsgCount" resultType="com.wecloud.im.vo.ConversationVo">
-        SELECT imConversation.id as id,
+        select * from (SELECT imConversation.id as id,
         imConversation.create_time,
+        imConversation.update_time,
         imConversation.`name`,
         imConversation.chat_type,
         imConversation.member_count,
@@ -59,13 +60,15 @@
         FROM im_conversation_members AS imConversationMembers
         INNER JOIN im_conversation AS imConversation
         ON imConversation.id = imConversationMembers.fk_conversation_id
-        INNER JOIN im_client AS im_client ON im_client.id = imConversation.creator
+        INNER JOIN im_client ON im_client.id = imConversation.creator
         WHERE imConversationMembers.fk_client_id = #{currentClientId}
         AND imConversationMembers.display_status = 1
         <if test="conversationId != null">
             AND imConversation.id = #{conversationId}
         </if>
-        GROUP BY imConversation.id
+        GROUP BY imConversation.id) t
+        order by t.update_time desc
+
     </select>
 
     <select id="getMyImConversationList" resultType="com.wecloud.im.entity.ImConversation">

im-sdk/src/main/java/com/wecloud/im/sdk/model/Conversation.java

@@ -67,7 +67,7 @@ public class Conversation implements Serializable {
     private String members;
 
     /**
-     * "会话属性，1：单聊，2：普通群，3：万人群，4：聊天室"
+     * "会话属性，1：单聊，2：普通群，3：万人群，4：聊天室 5: 临时会话"
      */
     private Integer chatType;