feat: 增加短链生成

utils/database/database.go

@@ -0,0 +1,22 @@
+package database
+
+import (
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+	"sub2clash/model"
+)
+
+var DB *gorm.DB
+
+func ConnectDB() error {
+	db, err := gorm.Open(sqlite.Open("sub2clash.db"), &gorm.Config{})
+	if err != nil {
+		return err
+	}
+	DB = db
+	err = db.AutoMigrate(&model.ShortLink{})
+	if err != nil {
+		return err
+	}
+	return nil
+}