222

.gitea/ISSUE_TEMPLATE/bug.yaml

@@ -0,0 +1,28 @@
+name: "IM 缺陷报告"
+description: "记录聊天消息、SignalR 或缓存相关的问题"
+title: "[BUG]简要描述问题"
+labels: ["bug", "high-priority"]
+body:
+  - type: markdown
+    attributes:
+      value: "请详细填写 Bug 信息，这将有助于快速定位后端 Redis 或 SignalR 的问题。"
+  - type: input
+    id: stream_key
+    attributes:
+      label: "相关 StreamKey / 群组 ID"
+      placeholder: "例如：group:123"
+  - type: textarea
+    id: steps
+    attributes:
+      label: "复现步骤"
+      value: |
+        1. 登录用户 A 和用户 B
+        2. 用户 A 向群组发送消息
+        3. 用户 B 界面没有反应
+    validations:
+      required: true
+  - type: textarea
+    id: logs
+    attributes:
+      label: "控制台错误日志 (Console Log)"
+      placeholder: "在此粘贴浏览器或后端的报错信息..."

backend/IM_API/Application/EventHandlers/MessageCreatedHandler/ConversationEventHandler.cs

@@ -17,33 +17,47 @@ namespace IM_API.Application.EventHandlers.MessageCreatedHandler
     {
         private readonly IConversationService _conversationService;
         private readonly ILogger<ConversationEventHandler> _logger;
-        private readonly ImContext _context;
+        private readonly IUserService _userSerivce;
-        private readonly IMapper _mapper;
         public ConversationEventHandler(
             IConversationService conversationService,
             ILogger<ConversationEventHandler> logger,
-            ImContext imContext,
+            IUserService userService
-            IMapper mapper
             )
         {
             _conversationService = conversationService;
             _logger = logger;
-            _context = imContext;
+            _userSerivce = userService;
-            _mapper = mapper;
         }
 
         public async Task Consume(ConsumeContext<MessageCreatedEvent> context)
         {
             var @event = context.Message;
-            await _conversationService.UpdateConversationAfterSentAsync(new Dtos.Conversation.UpdateConversationDto
+            if (@event.ChatType == ChatType.GROUP)
             {
-                LastMessage = @event.MessageContent,
+                var userinfo = await _userSerivce.GetUserInfoAsync(@event.MsgSenderId);
-                LastSequenceId = @event.SequenceId,
+                await _conversationService.UpdateConversationAfterSentAsync(new Dtos.Conversation.UpdateConversationDto
-                ReceiptId = @event.MsgRecipientId,
+                {
-                SenderId = @event.MsgSenderId,
+                    LastMessage = $"{userinfo.NickName}：{@event.MessageContent}",
-                StreamKey = @event.StreamKey,
+                    LastSequenceId = @event.SequenceId,
-                DateTime = @event.MessageCreated
+                    ReceiptId = @event.MsgRecipientId,
-            });
+                    SenderId = @event.MsgSenderId,
+                    StreamKey = @event.StreamKey,
+                    DateTime = @event.MessageCreated
+                });
+            }
+            else
+            {
+                await _conversationService.UpdateConversationAfterSentAsync(new Dtos.Conversation.UpdateConversationDto
+                {
+                    LastMessage = @event.MessageContent,
+                    LastSequenceId = @event.SequenceId,
+                    ReceiptId = @event.MsgRecipientId,
+                    SenderId = @event.MsgSenderId,
+                    StreamKey = @event.StreamKey,
+                    DateTime = @event.MessageCreated
+                });
+            }
+               
         }
 
     }

backend/IM_API/Application/EventHandlers/MessageCreatedHandler/SignalREventHandler.cs

@@ -25,29 +25,17 @@ namespace IM_API.Application.EventHandlers.MessageCreatedHandler
         {
             Console.ForegroundColor = ConsoleColor.Red;
             var @event = context.Message;
-            Console.WriteLine($"[SignalR]handlerCreated!");
             try
             {
-                // 先转成实体，如果这一步都报错，说明之前的 sbyte -> enum 还没改好
                 var entity = _mapper.Map<Message>(@event);
-
-                // 再从实体转 VO，这是最稳妥的路径，因为这两者的映射你肯定配过了
                 var messageBaseVo = _mapper.Map<MessageBaseVo>(entity);
-
+                await _hub.Clients.Group(@event.StreamKey).SendAsync("ReceiveMessage", new HubResponse<MessageBaseVo>("Event", messageBaseVo));
-                // 2. 打印日志确认逻辑执行到这里了
-                Console.WriteLine($"[SignalR] 准备向所有人广播消息: {messageBaseVo.Content}");
-
-                // 3. 执行广播
-                await _hub.Clients.User(@event.MsgRecipientId.ToString()).SendAsync("ReceiveMessage", new HubResponse<MessageBaseVo>("Event", messageBaseVo));
-
-                Console.WriteLine("[SignalR] 广播指令已发出");
-                Console.ResetColor();
             }
             catch (Exception ex)
             {
                 Console.WriteLine($"[SignalR] 发送失败: {ex.Message}");
                 Console.ResetColor();
-                throw; // 抛出异常触发 MassTransit 重试
+                throw;
             }
         }
     }

backend/IM_API/Controllers/AuthController.cs

@@ -8,6 +8,7 @@ using IM_API.VOs.Auth;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.AspNetCore.Mvc;
+using System.Diagnostics;
 
 namespace IM_API.Controllers
 {
@@ -39,13 +40,20 @@ namespace IM_API.Controllers
         [HttpPost]
         public async Task<IActionResult> Login(LoginRequestDto dto)
         {
+            Stopwatch sw = Stopwatch.StartNew();
             var user = await _authService.LoginAsync(dto);
+            _logger.LogInformation("服务耗时: {ms}ms", sw.ElapsedMilliseconds);
             var userInfo = _mapper.Map<UserInfoDto>(user);
+            _logger.LogInformation("序列化耗时: {ms}ms", sw.ElapsedMilliseconds);
             //生成凭证
             (string token,DateTime expiresAt) = _jwtService.CreateAccessTokenForUser(user.Id,user.Username,"user");
+            _logger.LogInformation("Token生成耗时: {ms}ms", sw.ElapsedMilliseconds);
             //生成刷新凭证
+            
             string refreshToken = await _refreshTokenService.CreateRefreshTokenAsync(user.Id);
+            _logger.LogInformation("RefreshToken生成耗时: {ms}ms", sw.ElapsedMilliseconds);
             var res = new BaseResponse<LoginVo>(new LoginVo(userInfo,token,refreshToken, expiresAt));
+            _logger.LogInformation("总耗时: {ms}ms", sw.ElapsedMilliseconds);
             return Ok(res);
         }
         [HttpPost]

backend/IM_API/Controllers/UserController.cs

@@ -5,6 +5,7 @@ using IM_API.Tools;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
+using System.ComponentModel.DataAnnotations;
 using System.IdentityModel.Tokens.Jwt;
 using System.Security.Claims;
 
@@ -45,7 +46,7 @@ namespace IM_API.Controllers
         {
             var userIdStr = User.FindFirstValue(ClaimTypes.NameIdentifier);
             int userId = int.Parse(userIdStr);
-            var userinfo = await _userService.UpdateUserAsync(userId,dto);
+            var userinfo = await _userService.UpdateUserAsync(userId, dto);
             var res = new BaseResponse<UserInfoDto>(userinfo);
             return Ok(res);
 
@@ -84,7 +85,7 @@ namespace IM_API.Controllers
         {
             var userIdStr = User.FindFirstValue(ClaimTypes.NameIdentifier);
             int userId = int.Parse(userIdStr);
-            await _userService.ResetPasswordAsync(userId,dto.OldPassword,dto.Password);
+            await _userService.ResetPasswordAsync(userId, dto.OldPassword, dto.Password);
             return Ok(new BaseResponse<object?>());
         }
         /// <summary>
@@ -100,5 +101,14 @@ namespace IM_API.Controllers
             await _userService.UpdateOlineStatusAsync(userId, dto.OnlineStatus);
             return Ok(new BaseResponse<object?>());
         }
+
+        [HttpPost]
+        [ProducesResponseType(typeof(BaseResponse<List<UserInfoDto>>), StatusCodes.Status200OK)]
+        public async Task<IActionResult> GetUserList([FromBody][Required]List<int> ids)
+        {
+            var users = await _userService.GetUserInfoListAsync(ids);
+            var res = new BaseResponse<List<UserInfoDto>>(users);
+            return Ok(res);
+        }
     }
 }

backend/IM_API/Hubs/ChatHub.cs

@@ -35,9 +35,9 @@ namespace IM_API.Hubs
             //将用户加入已加入聊天的会话组
             string userIdStr = Context.User.FindFirstValue(ClaimTypes.NameIdentifier);
             var keys = await _conversationService.GetUserAllStreamKeyAsync(int.Parse(userIdStr));
-            foreach(var key in keys)
+            foreach (var key in keys)
             {
-                await Groups.AddToGroupAsync(Context.ConnectionId,key);
+                await Groups.AddToGroupAsync(Context.ConnectionId, key);
             }
             await base.OnConnectedAsync();
         }

backend/IM_API/Interface/Services/IUserService.cs

@@ -35,5 +35,11 @@ namespace IM_API.Interface.Services
         /// <param name="onlineStatus"></param>
         /// <returns></returns>
         Task<bool> UpdateOlineStatusAsync(int userId, UserOnlineStatus onlineStatus);
+        /// <summary>
+        /// 批量获取用户信息
+        /// </summary>
+        /// <param name="ids">用户id列表</param>
+        /// <returns></returns>
+        Task<List<UserInfoDto>> GetUserInfoListAsync(List<int> ids);
     }
 }

backend/IM_API/Services/UserService.cs

@@ -6,6 +6,7 @@ using IM_API.Models;
 using IM_API.Tools;
 using Microsoft.EntityFrameworkCore;
 using StackExchange.Redis;
+using System.Text.Json;
 
 namespace IM_API.Services
 {
@@ -15,12 +16,16 @@ namespace IM_API.Services
         private readonly ILogger<UserService> _logger;
         private readonly IMapper _mapper;
         private readonly ICacheService _cacheService;
-        public UserService(ImContext imContext,ILogger<UserService> logger,IMapper mapper, ICacheService cacheService)
+        private readonly IDatabase _redis;
+        public UserService(
+            ImContext imContext,ILogger<UserService> logger,
+            IMapper mapper, ICacheService cacheService, IConnectionMultiplexer connectionMultiplexer)
         {
             this._context = imContext;
             this._logger = logger;
             this._mapper = mapper;
             _cacheService = cacheService;
+            _redis = connectionMultiplexer.GetDatabase();
         }
         #region 获取用户信息
         public async Task<UserInfoDto> GetUserInfoAsync(int userId)
@@ -87,5 +92,38 @@ namespace IM_API.Services
             return _mapper.Map<UserInfoDto>(user);
         }
         #endregion
+        #region 批量获取用户信息
+        public async Task<List<UserInfoDto>> GetUserInfoListAsync(List<int> ids)
+        {
+            //读取缓存中存在的用户，存在直接添加到结果列表
+            var idKeyArr = ids.Select(s => (RedisKey)RedisKeys.GetUserinfoKey(s.ToString())).ToArray();
+            var values = await _redis.StringGetAsync(idKeyArr);
+            List<User> results = [];
+            List<int> missingIds = [];
+            for(int i = 0; i < ids.Count; i++)
+            {
+                if (values[i].HasValue)
+                {
+                    results.Add(JsonSerializer.Deserialize<User>(values[i]));
+                }
+                else
+                {
+                    missingIds.Add(ids[i]);
+                }
+            }
+            //如果存在没有缓存的用户则进行查库
+            if (missingIds.Any())
+            {
+                var dbUsers = await _context.Users
+                    .Where(x => ids.Contains(x.Id)).ToListAsync();
+
+                results.AddRange(dbUsers);
+
+                var setTasks = dbUsers.Select(s => _cacheService.SetUserCacheAsync(s)).ToList();
+                await Task.WhenAll(setTasks);
+            }
+            return _mapper.Map<List<UserInfoDto>>(results);
+        }
+        #endregion
     }
 }

frontend/web/.env

@@ -1,4 +1,4 @@
-#VITE_API_BASE_URL = http://localhost:5202/api
+VITE_API_BASE_URL = http://localhost:5202/api
-#VITE_SIGNALR_BASE_URL = http://localhost:5202/chat/
+VITE_SIGNALR_BASE_URL = http://localhost:5202/chat/
-VITE_API_BASE_URL = https://im.test.nxsir.cn/api
+#VITE_API_BASE_URL = https://im.test.nxsir.cn/api
-VITE_SIGNALR_BASE_URL = https://im.test.nxsir.cn/chat/
+#VITE_SIGNALR_BASE_URL = https://im.test.nxsir.cn/chat/

frontend/web/src/utils/signalr/SignalMessageHandler.js

@@ -5,12 +5,13 @@ import { useChatStore } from "@/stores/chat";
 import { messageHandler } from "@/handler/messageHandler";
 import { generateSessionId } from "../sessionIdTools";
 import { useConversationStore } from "@/stores/conversation";
+import { MESSAGE_TYPE } from "@/constants/MessageType";
 
 export const SignalRMessageHandler = (data) => {
     const msg = data.data;
     const chatStore = useChatStore()
     const browserNotification = useBrowserNotification();
-    const sessionId = generateSessionId(msg.senderId, msg.receiverId);
+    const sessionId = generateSessionId(msg.senderId, msg.receiverId, msg.chatType == MESSAGE_TYPE.GROUP);
     messageHandler(msg);
     chatStore.pushAndSortMessagesAsync([msg], sessionId);
     const conversation = useConversationStore().conversations.find(x => x.targetId == msg.senderId);

frontend/web/src/views/messages/MessageContent.vue

@@ -178,7 +178,7 @@ input.value = ''; // 清空输入框
     updateMsg.isError = true;
   }finally{
     updateMsg.isLoading = false;
-    chatStore.pushAndSortMessagesAsync([updateMsg], generateSessionId(msg.senderId, msg.receiverId), true);
+    chatStore.pushAndSortMessagesAsync([updateMsg], generateSessionId(msg.senderId, msg.receiverId, msg.chatType == MESSAGE_TYPE.GROUP), true);
   
   msg.isLoading = false;
   }