第二十八：golang Time.time 时间格式返回定义结构体

小画家~2025-11-16 18:45

一：定义当前默认时间，写放数据库：

Go 复制代码

type Time time.Time

const (
	timeFormart = "2006-01-02 15:04:05"
	//timeFormart2 = "20060102150405"
)

func (t *Time) UnmarshalJSON(data []byte) (err error) {
	strData := string(data)
	if strings.Contains(strData, "/") {
		strData = strings.Trim(strData, `"'`)
		s := strings.Split(strData, "/")
		formatData := `"` + s[2][:4] + "-" + s[0] + "-" + s[1] + s[2][4:] + `"`
		strData = strings.Clone(formatData)
	}
	now, err := time.ParseInLocation(`"`+timeFormart+`"`, strData, time.Local)
	*t = Time(now)
	return
}

func (t Time) MarshalJSON() ([]byte, error) {
	b := make([]byte, 0, len(timeFormart)+2)
	b = append(b, '"')
	b = time.Time(t).AppendFormat(b, timeFormart)
	b = append(b, '"')
	return b, nil
}

func (t Time) String() string {
	return time.Time(t).Format(timeFormart)
}

func GetNow() Time {
	loc, _ := time.LoadLocation("Asia/Shanghai")
	return Time(time.Now().In(loc))
}

// 直接调用  GetNow() // 得出当前时间，是以 time 类型，在结构体调用：Getnow 如下结构体：

LoadTime            utils.Time     `json:"load_time" gorm:"type:timestamp;default:now()"`

第二种：返回当前时间类型，定义的是 Time 类型

Go 复制代码

type Time time.Time

const (
	timeFormart = "2006-01-02 15:04:05"
)

func (t *Time) UnmarshalJSON(data []byte) (err error) {
	strData := string(data)
	if strings.Contains(strData, "/") {
		strData = strings.Trim(strData, `"'`)
		s := strings.Split(strData, "/")
		formatData := `"` + s[2][:4] + "-" + s[0] + "-" + s[1] + s[2][4:] + `"`
		strData = strings.Clone(formatData)
	}
	now, err := time.ParseInLocation(`"`+timeFormart+`"`, strData, time.Local)
	*t = Time(now)
	return
}

func (t Time) MarshalJSON() ([]byte, error) {
	b := make([]byte, 0, len(timeFormart)+2)
	b = append(b, '"')
	b = time.Time(t).AppendFormat(b, timeFormart)
	b = append(b, '"')
	return b, nil
}

func (t Time) String() string {
	return time.Time(t).Format(timeFormart)
}

func GetNow(t time.Time) Time {
	loc, _ := time.LoadLocation("Asia/Shanghai")
	return Time(t.In(loc))
}

// GetNow() // 里面参数调用的是 返回 回来的时间类型处理

按这个方法调用返回时间类型： GetNow(v.CreatedAt)