diff --git a/internal/biz/biz.go b/internal/biz/biz.go
index ad9111b..df9cd3b 100644
--- a/internal/biz/biz.go
+++ b/internal/biz/biz.go
@@ -1,9 +1,10 @@
 package biz
 
 import (
-	"github.com/google/wire"
 	"kra/internal/biz/system"
+
+	"github.com/google/wire"
 )
 
 // ProviderSet is biz providers.
-var ProviderSet = wire.NewSet(system.NewUserUsecase)
+var ProviderSet = wire.NewSet(system.NewUserUsecase, system.NewApiUsecase)
diff --git a/internal/data/data.go b/internal/data/data.go
index c898756..b8db616 100644
--- a/internal/data/data.go
+++ b/internal/data/data.go
@@ -3,7 +3,7 @@ package data
 import (
 	"fmt"
 	"kra/internal/conf"
-	"kra/internal/data/query"
+	datasystem "kra/internal/data/system"
 
 	_ "github.com/go-sql-driver/mysql"
 	"github.com/google/wire"
@@ -13,11 +13,28 @@ import (
 )
 
 // ProviderSet is data providers.
-var ProviderSet = wire.NewSet(NewDB, NewData)
+var ProviderSet = wire.NewSet(
+	NewDB,
+	NewData,
+	datasystem.NewUserRepo,
+	datasystem.NewApiRepo,
+)
 
-// Data 数据层
+// Data 数据层包装器
 type Data struct {
-	DB *gorm.DB
+	db *gorm.DB
+}
+
+// NewData 创建数据层包装器
+func NewData(db *gorm.DB) (*Data, func(), error) {
+	cleanup := func() {
+		// 关闭数据库连接
+		sqlDB, err := db.DB()
+		if err == nil {
+			sqlDB.Close()
+		}
+	}
+	return &Data{db: db}, cleanup, nil
 }
 
 // NewDB 创建数据库连接
@@ -30,18 +47,5 @@ func NewDB(c *conf.Mysql) (*gorm.DB, error) {
 	if err != nil {
 		return nil, err
 	}
-	// 初始化 gen query
-	query.SetDefault(db)
 	return db, nil
 }
-
-// NewData 创建 Data 实例
-func NewData(db *gorm.DB) (*Data, func(), error) {
-	cleanup := func() {
-		sqlDB, _ := db.DB()
-		if sqlDB != nil {
-			sqlDB.Close()
-		}
-	}
-	return &Data{DB: db}, cleanup, nil
-}