diff --git a/controller/charge.go b/controller/charge.go
index 2d057b1..ce5282c 100644
--- a/controller/charge.go
+++ b/controller/charge.go
@@ -50,9 +50,9 @@ func createNewUserChargeRecord(c *fiber.Ctx) error {
 		chargeLog.Error("无法解析创建充值记录的请求数据。", zap.Error(err))
 		return result.Error(http.StatusBadRequest, err.Error())
 	}
-	fee, _ := createionForm.Fee.Float64()
-	discount, _ := createionForm.Discount.Float64()
-	amount, _ := createionForm.Amount.Float64()
+	fee, _ := createionForm.Fee.Decimal.Float64()
+	discount, _ := createionForm.Discount.Decimal.Float64()
+	amount, _ := createionForm.Amount.Decimal.Float64()
 	ok, err := service.ChargeService.RecordUserCharge(
 		createionForm.UserId,
 		&fee,
diff --git a/model/charge.go b/model/charge.go
index b8357b4..f0d1c18 100644
--- a/model/charge.go
+++ b/model/charge.go
@@ -24,9 +24,9 @@ type UserChargeDetail struct {
 }
 
 type ChargeRecordCreationForm struct {
-	UserId   string           `json:"userId"`
-	Fee      *decimal.Decimal `json:"fee"`
-	Discount *decimal.Decimal `json:"discount"`
-	Amount   *decimal.Decimal `json:"amount"`
-	ChargeTo types.Date       `json:"chargeTo"`
+	UserId   string              `json:"userId"`
+	Fee      decimal.NullDecimal `json:"fee"`
+	Discount decimal.NullDecimal `json:"discount"`
+	Amount   decimal.NullDecimal `json:"amount"`
+	ChargeTo types.Date          `json:"chargeTo"`
 }
diff --git a/repository/user.go b/repository/user.go
index 04547e4..7610603 100644
--- a/repository/user.go
+++ b/repository/user.go
@@ -401,7 +401,7 @@ func (ur _UserRepository) ChangeState(uid string, state bool) (bool, error) {
 }
 
 // 检索条目数量有限的用户详细信息
-func (ur _UserRepository) SearchUsersWithLimit(userType *int16, keyword *string, limit uint) ([]*model.UserDetail, error) {
+func (ur _UserRepository) SearchUsersWithLimit(userType *int16, keyword *string, limit uint) ([]*model.UserWithDetail, error) {
 	ur.log.Info("检索条目数量有限的用户详细信息。", zap.Int16p("user type", userType), zap.Uint("limit", limit), zap.Stringp("keyword", keyword))
 	actualUserType := tools.DefaultTo(userType, model.USER_TYPE_ENT)
 	cacheConditions := []string{
@@ -409,13 +409,13 @@ func (ur _UserRepository) SearchUsersWithLimit(userType *int16, keyword *string,
 		tools.DefaultTo(keyword, ""),
 		fmt.Sprintf("%d", limit),
 	}
-	if users, err := cache.RetrieveSearch[[]*model.UserDetail]("user_with_detail_limited", cacheConditions...); err == nil && users != nil {
+	if users, err := cache.RetrieveSearch[[]*model.UserWithDetail]("user_with_detail_limited", cacheConditions...); err == nil && users != nil {
 		return *users, nil
 	}
 	ctx, cancel := global.TimeoutContext()
 	defer cancel()
 
-	var users []*model.UserDetail
+	var users = make([]*model.UserWithDetail, 0)
 	userQuery := ur.ds.
 		From(goqu.T("user").As("u")).
 		Join(goqu.T("user_detail").As("ud"), goqu.On(goqu.Ex{"ud.id": goqu.I("u.id")})).
@@ -442,7 +442,7 @@ func (ur _UserRepository) SearchUsersWithLimit(userType *int16, keyword *string,
 	userQuery.Order(goqu.I("u.created_at").Desc()).Limit(limit)
 
 	userSql, userParams, _ := userQuery.Prepared(true).ToSQL()
-	if err := pgxscan.Select(ctx, global.DB, users, userSql, userParams...); err != nil {
+	if err := pgxscan.Select(ctx, global.DB, &users, userSql, userParams...); err != nil {
 		ur.log.Error("从数据库查询用户列表失败。", zap.Error(err))
 		return nil, err
 	}