81 lines
1.6 KiB
Go
81 lines
1.6 KiB
Go
package database
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import (
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"fmt"
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"log"
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"ops/internal/config"
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"time"
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"gorm.io/driver/mysql"
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"gorm.io/driver/postgres"
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"gorm.io/driver/sqlite"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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)
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// DB 全局数据库实例
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var DB *gorm.DB
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// Init 初始化数据库连接
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func Init() error {
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cfg := config.Current.Database
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var dialector gorm.Dialector
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switch cfg.Type {
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case "sqlite":
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dialector = sqlite.Open(cfg.Path)
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case "mysql":
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dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=True&loc=Local",
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cfg.User, cfg.Pass, cfg.Host, cfg.Port, cfg.Name)
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dialector = mysql.Open(dsn)
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case "postgres", "pg":
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dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%s sslmode=disable TimeZone=Asia/Shanghai",
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cfg.Host, cfg.User, cfg.Pass, cfg.Name, cfg.Port)
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dialector = postgres.Open(dsn)
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default:
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return fmt.Errorf("不支持的数据库类型: %s", cfg.Type)
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}
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// 配置GORM
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gormConfig := &gorm.Config{
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Logger: logger.Default.LogMode(logger.Info),
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}
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// 连接数据库
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var err error
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DB, err = gorm.Open(dialector, gormConfig)
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if err != nil {
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return fmt.Errorf("数据库连接失败: %v", err)
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}
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// 配置连接池
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sqlDB, err := DB.DB()
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if err != nil {
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return err
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}
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sqlDB.SetMaxIdleConns(10)
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sqlDB.SetMaxOpenConns(100)
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sqlDB.SetConnMaxLifetime(time.Hour)
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log.Println("数据库连接成功")
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return nil
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}
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// GetDB 获取数据库实例
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func GetDB() *gorm.DB {
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return DB
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}
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// Close 关闭数据库连接
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func Close() error {
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if DB != nil {
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sqlDB, err := DB.DB()
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if err != nil {
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return err
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}
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return sqlDB.Close()
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}
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return nil
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} |