连接数据库

host = "localhost"
port = "2003"
dbname = "osrdb"
user = "sysdba"
password = "szoscar55"

dsn := fmt.Sprintf("%s/%s@%s:%s/%s", user, password, host, port, dbname)
db, err := gorm.Open(oscar.Open(dsn), &gorm.Config{
        SkipDefaultTransaction: false,
        DisableForeignKeyConstraintWhenMigrating: true,
})
if err != nil {
        fmt.Println(err)
        os.Exit(1)
}