diff --git a/.gitignore b/.gitignore
index af8e87d8..cb911a49 100644
--- a/.gitignore
+++ b/.gitignore
@@ -402,5 +402,4 @@ FodyWeavers.xsd
 dist/
 *.[Dd]esigner.cs
 *.db
-cache
 /assets/res/Ln.resx
diff --git a/assets/res/Statements.ln b/assets/res/Statements.ln
index ce23cf65..a8e6918c 100644
--- a/assets/res/Statements.ln
+++ b/assets/res/Statements.ln
@@ -22,6 +22,7 @@ XML注释文件不存在
 已处理完毕
 开始事务
 手机号码不正确
+手机号码不能为空
 支付宝账号
 数据库同步开始
 数据库服务器时钟偏移
diff --git a/dotnet-tools.json b/dotnet-tools.json
index d36cef7e..09259295 100644
--- a/dotnet-tools.json
+++ b/dotnet-tools.json
@@ -15,7 +15,7 @@
       ]
     },
     "jetbrains.resharper.globaltools": {
-      "version": "2023.3.0",
+      "version": "2023.3.2",
       "commands": [
         "jb"
       ]
diff --git a/src/backend/NetAdmin.Domain/DbMaps/Sys/Sys_SiteMsg.cs b/src/backend/NetAdmin.Domain/DbMaps/Sys/Sys_SiteMsg.cs
index f122385f..602ab86b 100644
--- a/src/backend/NetAdmin.Domain/DbMaps/Sys/Sys_SiteMsg.cs
+++ b/src/backend/NetAdmin.Domain/DbMaps/Sys/Sys_SiteMsg.cs
@@ -15,7 +15,7 @@ public record Sys_SiteMsg : VersionEntity, IRegister, IFieldSummary
     ///     消息内容
     /// </summary>
     [JsonIgnore]
-    [Column(DbType = Chars.FLG_DB_FIELD_TYPE_TEXT)]
+    [Column(DbType = Chars.FLG_DB_FIELD_TYPE_VARCHAR_255)]
     public virtual string Content { get; init; }
 
     /// <summary>
diff --git a/src/backend/NetAdmin.Domain/Dto/Sys/User/CheckMobileAvailableReq.cs b/src/backend/NetAdmin.Domain/Dto/Sys/User/CheckMobileAvailableReq.cs
index 4dadc4a6..b6637f16 100644
--- a/src/backend/NetAdmin.Domain/Dto/Sys/User/CheckMobileAvailableReq.cs
+++ b/src/backend/NetAdmin.Domain/Dto/Sys/User/CheckMobileAvailableReq.cs
@@ -1,5 +1,4 @@
 using NetAdmin.Domain.Attributes.DataValidation;
-using NetAdmin.Domain.DbMaps.Dependency.Fields;
 using NetAdmin.Domain.DbMaps.Sys;
 
 namespace NetAdmin.Domain.Dto.Sys.User;
@@ -9,12 +8,9 @@ namespace NetAdmin.Domain.Dto.Sys.User;
 /// </summary>
 public sealed record CheckMobileAvailableReq : Sys_User
 {
-    /// <inheritdoc cref="IFieldPrimary{T}.Id" />
-    [JsonIgnore(Condition = JsonIgnoreCondition.Never)]
-    public override long Id { get; init; }
-
     /// <inheritdoc cref="Sys_User.Mobile" />
     [Mobile]
-    [JsonIgnore(Condition = JsonIgnoreCondition.Never)]
+    [Required(ErrorMessageResourceType = typeof(Ln), ErrorMessageResourceName = nameof(Ln.手机号码不能为空))]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
     public override string Mobile { get; init; }
 }
\ No newline at end of file
diff --git a/src/backend/NetAdmin.Domain/Dto/Sys/User/CheckUserNameAvailableReq.cs b/src/backend/NetAdmin.Domain/Dto/Sys/User/CheckUserNameAvailableReq.cs
index b47a7676..260b001b 100644
--- a/src/backend/NetAdmin.Domain/Dto/Sys/User/CheckUserNameAvailableReq.cs
+++ b/src/backend/NetAdmin.Domain/Dto/Sys/User/CheckUserNameAvailableReq.cs
@@ -1,5 +1,4 @@
 using NetAdmin.Domain.Attributes.DataValidation;
-using NetAdmin.Domain.DbMaps.Dependency.Fields;
 using NetAdmin.Domain.DbMaps.Sys;
 
 namespace NetAdmin.Domain.Dto.Sys.User;
@@ -9,12 +8,8 @@ namespace NetAdmin.Domain.Dto.Sys.User;
 /// </summary>
 public sealed record CheckUserNameAvailableReq : Sys_User
 {
-    /// <inheritdoc cref="IFieldPrimary{T}.Id" />
-    [JsonIgnore(Condition = JsonIgnoreCondition.Never)]
-    public override long Id { get; init; }
-
     /// <inheritdoc cref="Sys_User.UserName" />
-    [JsonIgnore(Condition = JsonIgnoreCondition.Never)]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
     [Required(ErrorMessageResourceType = typeof(Ln), ErrorMessageResourceName = nameof(Ln.用户名不能为空))]
     [UserName]
     public override string UserName { get; init; }
diff --git a/src/backend/NetAdmin.SysComponent.Application/Services/Sys/SiteMsgService.cs b/src/backend/NetAdmin.SysComponent.Application/Services/Sys/SiteMsgService.cs
index 2f6acd1f..8c221172 100644
--- a/src/backend/NetAdmin.SysComponent.Application/Services/Sys/SiteMsgService.cs
+++ b/src/backend/NetAdmin.SysComponent.Application/Services/Sys/SiteMsgService.cs
@@ -229,6 +229,7 @@ public sealed class SiteMsgService(
         var list = await QueryMineInternal(req)
                          .Page(req.Page, req.PageSize)
                          .Count(out var total)
+                         .OrderByDescending(a => a.Max(a.Value.Item1.CreatedTime))
                          .ToListAsync(a => new QuerySiteMsgRsp {
                                                                    Id      = a.Max(a.Value.Item1.Id)
                                                                  , Title   = a.Max(a.Value.Item1.Title)
@@ -291,7 +292,6 @@ public sealed class SiteMsgService(
                               f.UserSiteMsgStatus != UserSiteMsgStatues.Deleted) &&
                              (a.MsgType == SiteMsgTypes.Public || c.DeptId == contextUserInfo.DeptId ||
                               roleIds.Contains(d.RoleId)       || e.UserId == contextUserInfo.Id))
-                  .GroupBy((a, _, _, _, _, _) => a.Id)
-                  .OrderByDescending(a => a.Value.Item1.CreatedTime);
+                  .GroupBy((a, _, _, _, _, _) => a.Id);
     }
 }
\ No newline at end of file