61 lines
1.1 KiB
Go
61 lines
1.1 KiB
Go
package utils
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import (
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"fmt"
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"go-account-register/config"
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"log"
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"time"
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"gorm.io/driver/mysql"
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"gorm.io/gorm"
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)
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var DB *gorm.DB
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func Connect() (*gorm.DB, error) {
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appConfig, dberr := config.LoadConfig()
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if dberr != nil {
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fmt.Println("读取配置失败")
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}
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dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local",
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appConfig.Database.Username,
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appConfig.Database.Password,
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appConfig.Database.Host,
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appConfig.Database.Port,
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appConfig.Database.Database)
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db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{})
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if err != nil {
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return nil, fmt.Errorf("failed to connect to database: %w", err)
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}
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sqlDB, err := db.DB()
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if err != nil {
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return nil, fmt.Errorf("failed to get sql.DB: %w", 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("Database connection established")
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DB = db
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return db, nil
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}
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func GetDB() *gorm.DB {
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if DB == nil {
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panic("database connection is not initialized")
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}
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return DB
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}
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func Close() error {
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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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