前端：

新增添加好友功能
修复给联系人发消息时跳转空会话的情况
修复了已知问题
后端：
修复了已知问题

backend/IM_API/Services/FriendService.cs

@@ -73,22 +73,14 @@ namespace IM_API.Services
         }
         #endregion
         #region 获取好友请求列表
-        public async Task<List<FriendRequest>> GetFriendRequestListAsync(int userId, bool isReceived, int page, int limit, bool desc)
+        public async Task<List<FriendRequest>> GetFriendRequestListAsync(int userId, int page, int limit, bool desc)
         {
-            var query = _context.FriendRequests.AsQueryable();
-            //是否为请求方
-            if (isReceived)
-            {
-                query = _context.FriendRequests.Where(x => x.ResponseUser == userId);
-            }
-            else
-            {
-                query = _context.FriendRequests.Where(x => x.RequestUser == userId);
-            }
-            if (desc)
-            {
-                query = query.OrderByDescending(x => x.Id);
-            }
+            var query = _context.FriendRequests
+                .Where(
+                x => (x.ResponseUser == userId) ||
+                x.RequestUser == userId
+                );
+            query = query.OrderByDescending(x => x.Id);
             var friendRequestList = await query.Skip((page - 1 * limit)).Take(limit).ToListAsync();
             return friendRequestList;
         }
@@ -154,16 +146,17 @@ namespace IM_API.Services
             if (alreadyExists)
                 throw new BaseException(CodeDefine.FRIEND_REQUEST_EXISTS);
 
+            var friendShip = await _context.Friends.FirstOrDefaultAsync(x => x.UserId == dto.FromUserId && x.FriendId == dto.ToUserId);
+
             //检查是否被对方拉黑
-            bool isBlocked = await _context.Friends.AnyAsync(x =>
-                x.UserId == dto.FromUserId && x.FriendId == dto.ToUserId && x.Status == (sbyte)FriendStatus.Blocked
-            );
+            bool isBlocked = friendShip != null && friendShip.StatusEnum == FriendStatus.Blocked;
             if (isBlocked)
                 throw new BaseException(CodeDefine.FRIEND_REQUEST_REJECTED);
-
+            if (friendShip != null)
+                throw new BaseException(CodeDefine.ALREADY_FRIENDS);
             //生成实体
             var friendRequst = _mapper.Map<FriendRequest>(dto);
-            var friend = _mapper.Map<Friend>(friendRequst);
+            var friend = _mapper.Map<Friend>(dto);
             _context.FriendRequests.Add(friendRequst);
             _context.Friends.Add(friend);
             await _context.SaveChangesAsync();