后端：

1、事件订阅增加rabbitmq中间件
移动端：
1、完善移动端目录结构和代码框架

backend/IM_API/Services/FriendService.cs

@@ -170,9 +170,7 @@ namespace IM_API.Services
                 throw new BaseException(CodeDefine.ALREADY_FRIENDS);
             //生成实体
             var friendRequst = _mapper.Map<FriendRequest>(dto);
-            var friend = _mapper.Map<Friend>(dto);
             _context.FriendRequests.Add(friendRequst);
-            _context.Friends.Add(friend);
             await _context.SaveChangesAsync();
             return true;
         }

backend/IM_API/Services/MessageService.cs

@@ -6,6 +6,7 @@ using IM_API.Exceptions;
 using IM_API.Interface.Services;
 using IM_API.Models;
 using IM_API.Tools;
+using MassTransit;
 using Microsoft.EntityFrameworkCore;
 
 namespace IM_API.Services
@@ -15,13 +16,19 @@ namespace IM_API.Services
         private readonly ImContext _context;
         private readonly ILogger<MessageService> _logger;
         private readonly IMapper _mapper;
-        private readonly IEventBus _eventBus;
-        public MessageService(ImContext context, ILogger<MessageService> logger, IMapper mapper, IEventBus eventBus)
+        //废弃，此处已使用rabbitMQ替代
+        //private readonly IEventBus _eventBus;
+        private readonly IPublishEndpoint _endpoint;
+        public MessageService(
+            ImContext context, ILogger<MessageService> logger, IMapper mapper, IEventBus eventBus,
+            IPublishEndpoint publishEndpoint
+            )
         {
             _context = context;
             _logger = logger;
             _mapper = mapper;
-            _eventBus = eventBus;
+            //_eventBus = eventBus;
+            _endpoint = publishEndpoint;
         }
 
         public async Task<List<MessageBaseDto>> GetMessagesAsync(int userId, int conversationId, int? msgId, int? pageSize, bool desc)
@@ -93,10 +100,12 @@ namespace IM_API.Services
             if (!isMember) throw new BaseException(CodeDefine.NO_GROUP_PERMISSION);
             var message = _mapper.Map<Message>(dto);
             message.Sender = senderId;
-            message.StreamKey = StreamKeyBuilder.Group(groupId);
+            message.StreamKey = StreamKeyBuilder.Group(
+                
+                groupId);
             _context.Messages.Add(message);
             await _context.SaveChangesAsync();
-            await _eventBus.PublishAsync(_mapper.Map<MessageCreatedEvent>(message));
+            await _endpoint.Publish(_mapper.Map<MessageCreatedEvent>(message));
             return _mapper.Map<MessageBaseDto>(message);
 
         }
@@ -112,7 +121,7 @@ namespace IM_API.Services
             message.StreamKey = StreamKeyBuilder.Private(dto.SenderId, dto.ReceiverId);
             _context.Messages.Add(message);
             await _context.SaveChangesAsync();
-            await _eventBus.PublishAsync(_mapper.Map<MessageCreatedEvent>(message));
+            await _endpoint.Publish(_mapper.Map<MessageCreatedEvent>(message));
             return _mapper.Map<MessageBaseDto>(message);
         }
         #endregion