GO 對常用時間函數進行一些封裝

package utils

import (
	"strings"
	"time"
)

type TimeUtil struct {
}

//獲取 nowTime（時間戳）月開始時間戳
func (t *TimeUtil) GetMonthBeginTimeStamp(nowTime int64) int64 {
	thisTime := time.Unix(nowTime, 0).In(time.FixedZone("CST", 8*3600))
	return time.Date(thisTime.Year(), thisTime.Month(), 1, 0, 0, 0, 0, thisTime.Location()).Unix()
}

//獲取 nowTime（時間戳）月結束時間戳
func (t *TimeUtil) GetMonthEndTimeStamp(nowTime int64) int64 {
	thisTime := time.Unix(nowTime, 0).In(time.FixedZone("CST", 8*3600))
	return time.Date(thisTime.Year(), thisTime.Month()+1, 0, 23, 59, 59, 59, thisTime.Location()).Unix()
}

//獲取 nowTime（時間戳）日開始時間戳
func (t *TimeUtil) GetDayBeginTimeStamp(nowTime int64) int64 {
	thisTime := time.Unix(nowTime, 0).In(time.FixedZone("CST", 8*3600))
	return time.Date(thisTime.Year(), thisTime.Month(), thisTime.Day(), 0, 0, 0, 0, thisTime.Location()).Unix()
}

//獲取 nowTime（時間戳）日結束時間戳
func (t *TimeUtil) GetDayEndTimeStamp(nowTime int64) int64 {
	thisTime := time.Unix(nowTime, 0).In(time.FixedZone("CST", 8*3600))
	return time.Date(thisTime.Year(), thisTime.Month(), thisTime.Day(), 23, 59, 59, 59, thisTime.Location()).Unix()
}

//根據輸入模板 "Y-m-d H:i:s" or "Y-m-d" 來進行時間轉換爲時間戳
func (t *TimeUtil) TransformationTimeStamp(toBeCharge string, temp string) int64 {
	temp = strings.Replace(temp, " ", "", -1)
	timeLayout := "2006-01-02 15:04:05"

	if temp == "" || temp == "Y-m-d H:i:s" {
		timeLayout = "2006-01-02 15:04:05"
	} else if temp == "Y-m-d" {
		timeLayout = "2006-01-02"
	}

	theTime, _ := time.ParseInLocation(timeLayout, toBeCharge, time.FixedZone("CST", 8*3600)) //使用模板在對應時區轉化爲time.time類型
	return theTime.Unix()                                                                     //轉化爲時間戳 類型是int64
}

//根據輸入模板 "Y-m-d H:i:s" or "Y-m-d" 來進行時間戳轉換爲時間
func (t *TimeUtil) TransformationTime(timeStamp int64, temp string) string {
	temp = strings.Replace(temp, " ", "", -1)
	timeLayout := "2006-01-02 15:04:05"

	if temp == "" || temp == "Y-m-d H:i:s" {
		timeLayout = "2006-01-02 15:04:05"
	} else if temp == "Y-m-d" {
		timeLayout = "2006-01-02"
	}

	thisTime := time.Unix(timeStamp, 0).In(time.FixedZone("CST", 8*3600))
	return thisTime.Format(timeLayout)
}

//獲取當前時間戳
func (t *TimeUtil) GetNowTimeStamp() int64 {
	return time.Now().In(time.FixedZone("CST", 8*3600)).Unix()
}

//獲取當前時間 （根據模板 "Y-m-d H:i:s" or "Y-m-d"）
func (t *TimeUtil) GetNowTime(temp string) string {
	timeStamp := time.Now().In(time.FixedZone("CST", 8*3600)).Unix()
	temp = strings.Replace(temp, " ", "", -1)
	timeLayout := "2006-01-02 15:04:05"

	if temp == "" || temp == "Y-m-d H:i:s" {
		timeLayout = "2006-01-02 15:04:05"
	} else if temp == "Y-m-d" {
		timeLayout = "2006-01-02"
	}
	thisTime := time.Unix(timeStamp, 0).In(time.FixedZone("CST", 8*3600))
	return thisTime.Format(timeLayout)
}

//獲取時間戳所在年
func (t *TimeUtil) GetYear(timeStamp int64) int {
	thisTime := time.Unix(timeStamp, 0).In(time.FixedZone("CST", 8*3600))
	return thisTime.Year()
}

//獲取時間戳所在月
func (t *TimeUtil) GetMonth(timeStamp int64) int {
	thisTime := time.Unix(timeStamp, 0).In(time.FixedZone("CST", 8*3600))
	return int(thisTime.Month())
}

//獲取時間戳所在日
func (t *TimeUtil) GetDay(timeStamp int64) int {
	thisTime := time.Unix(timeStamp, 0).In(time.FixedZone("CST", 8*3600))
	return thisTime.Day()
}