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- package utils
- import (
- "crypto/hmac"
- "crypto/md5"
- "crypto/sha1"
- "crypto/sha256"
- "encoding/base64"
- "encoding/hex"
- "encoding/json"
- "errors"
- "fmt"
- "image"
- "image/png"
- "math"
- "math/rand"
- "net"
- "os"
- "os/exec"
- "regexp"
- "strconv"
- "strings"
- "time"
- )
- func GetRandString(size int) string {
- allLetterDigit := []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "!", "@", "#", "$", "%", "^", "&", "*"}
- randomSb := ""
- digitSize := len(allLetterDigit)
- rnd := rand.New(rand.NewSource(time.Now().UnixNano()))
- for i := 0; i < size; i++ {
- randomSb += allLetterDigit[rnd.Intn(digitSize)]
- }
- return randomSb
- }
- func GetRandStringNoSpecialChar(size int) string {
- allLetterDigit := []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"}
- randomSb := ""
- digitSize := len(allLetterDigit)
- rnd := rand.New(rand.NewSource(time.Now().UnixNano()))
- for i := 0; i < size; i++ {
- randomSb += allLetterDigit[rnd.Intn(digitSize)]
- }
- return randomSb
- }
- func StringsToJSON(str string) string {
- rs := []rune(str)
- jsons := ""
- for _, r := range rs {
- rint := int(r)
- if rint < 128 {
- jsons += string(r)
- } else {
- jsons += "\\u" + strconv.FormatInt(int64(rint), 16) // json
- }
- }
- return jsons
- }
- // 序列化
- func ToString(v interface{}) string {
- data, _ := json.Marshal(v)
- return string(data)
- }
- // md5加密
- func MD5(data string) string {
- m := md5.Sum([]byte(data))
- return hex.EncodeToString(m[:])
- }
- func GetToday(format string) string {
- today := time.Now().Format(format)
- return today
- }
- // 截取小数点后几位
- func SubFloatToString(f float64, m int) string {
- n := strconv.FormatFloat(f, 'f', -1, 64)
- if n == "" {
- return ""
- }
- if m >= len(n) {
- return n
- }
- newn := strings.Split(n, ".")
- if m == 0 {
- return newn[0]
- }
- if len(newn) < 2 || m >= len(newn[1]) {
- return n
- }
- return newn[0] + "." + newn[1][:m]
- }
- // 截取小数点后几位
- func SubFloatToFloat(f float64, m int) float64 {
- newn := SubFloatToString(f, m)
- newf, _ := strconv.ParseFloat(newn, 64)
- return newf
- }
- // 获取相差时间-年
- func GetYearDiffer(start_time, end_time string) int {
- t1, _ := time.ParseInLocation("2006-01-02", start_time, time.Local)
- t2, _ := time.ParseInLocation("2006-01-02", end_time, time.Local)
- age := t2.Year() - t1.Year()
- if t2.Month() < t1.Month() || (t2.Month() == t1.Month() && t2.Day() < t1.Day()) {
- age--
- }
- return age
- }
- // 获取相差时间-秒
- func GetSecondDifferByTime(start_time, end_time time.Time) int64 {
- diff := end_time.Unix() - start_time.Unix()
- return diff
- }
- func FixFloat(f float64, m int) float64 {
- newn := SubFloatToString(f+0.00000001, m)
- newf, _ := strconv.ParseFloat(newn, 64)
- return newf
- }
- // 将字符串数组转化为逗号分割的字符串形式 ["str1","str2","str3"] >>> "str1,str2,str3"
- func StrListToString(strList []string) (str string) {
- if len(strList) > 0 {
- for k, v := range strList {
- if k == 0 {
- str = v
- } else {
- str = str + "," + v
- }
- }
- return
- }
- return ""
- }
- // 数据没有记录
- func ErrNoRow() string {
- return "<QuerySeter> no row found"
- }
- // 校验邮箱格式
- func ValidateEmailFormatat(email string) bool {
- reg := regexp.MustCompile(RegularEmail)
- return reg.MatchString(email)
- }
- // 验证是否是手机号
- func ValidateMobileFormatat(mobileNum string) bool {
- reg := regexp.MustCompile(RegularMobile)
- return reg.MatchString(mobileNum)
- }
- // 判断文件是否存在
- func FileIsExist(filePath string) bool {
- _, err := os.Stat(filePath)
- return err == nil || os.IsExist(err)
- }
- // 获取图片扩展名
- func GetImgExt(file string) (ext string, err error) {
- var headerByte []byte
- headerByte = make([]byte, 8)
- fd, err := os.Open(file)
- if err != nil {
- return "", err
- }
- defer fd.Close()
- _, err = fd.Read(headerByte)
- if err != nil {
- return "", err
- }
- xStr := fmt.Sprintf("%x", headerByte)
- switch {
- case xStr == "89504e470d0a1a0a":
- ext = ".png"
- case xStr == "0000010001002020":
- ext = ".ico"
- case xStr == "0000020001002020":
- ext = ".cur"
- case xStr[:12] == "474946383961" || xStr[:12] == "474946383761":
- ext = ".gif"
- case xStr[:10] == "0000020000" || xStr[:10] == "0000100000":
- ext = ".tga"
- case xStr[:8] == "464f524d":
- ext = ".iff"
- case xStr[:8] == "52494646":
- ext = ".ani"
- case xStr[:4] == "4d4d" || xStr[:4] == "4949":
- ext = ".tiff"
- case xStr[:4] == "424d":
- ext = ".bmp"
- case xStr[:4] == "ffd8":
- ext = ".jpg"
- case xStr[:2] == "0a":
- ext = ".pcx"
- default:
- ext = ""
- }
- return ext, nil
- }
- // 保存图片
- func SaveImage(path string, img image.Image) (err error) {
- //需要保持的文件
- imgfile, err := os.Create(path)
- defer imgfile.Close()
- // 以PNG格式保存文件
- err = png.Encode(imgfile, img)
- return err
- }
- // 保存base64数据为文件
- func SaveBase64ToFile(content, path string) error {
- data, err := base64.StdEncoding.DecodeString(content)
- if err != nil {
- return err
- }
- f, err := os.Create(path)
- defer f.Close()
- if err != nil {
- return err
- }
- f.Write(data)
- return nil
- }
- func SaveBase64ToFileBySeek(content, path string) (err error) {
- data, err := base64.StdEncoding.DecodeString(content)
- exist, err := PathExists(path)
- if err != nil {
- return
- }
- if !exist {
- f, err := os.Create(path)
- if err != nil {
- return err
- }
- n, _ := f.Seek(0, 2)
- // 从末尾的偏移量开始写入内容
- _, err = f.WriteAt([]byte(data), n)
- defer f.Close()
- } else {
- f, err := os.OpenFile(path, os.O_WRONLY, 0644)
- if err != nil {
- return err
- }
- n, _ := f.Seek(0, 2)
- // 从末尾的偏移量开始写入内容
- _, err = f.WriteAt([]byte(data), n)
- defer f.Close()
- }
- return nil
- }
- func PathExists(path string) (bool, error) {
- _, err := os.Stat(path)
- if err == nil {
- return true, nil
- }
- if os.IsNotExist(err) {
- return false, nil
- }
- return false, err
- }
- func StartIndex(page, pagesize int) int {
- if page > 1 {
- return (page - 1) * pagesize
- }
- return 0
- }
- func PageCount(count, pagesize int) int {
- if count%pagesize > 0 {
- return count/pagesize + 1
- } else {
- return count / pagesize
- }
- }
- func TrimHtml(src string) string {
- //将HTML标签全转换成小写
- re, _ := regexp.Compile("\\<[\\S\\s]+?\\>")
- src = re.ReplaceAllStringFunc(src, strings.ToLower)
- re, _ = regexp.Compile("\\<img[\\S\\s]+?\\>")
- src = re.ReplaceAllString(src, "[图片]")
- re, _ = regexp.Compile("class[\\S\\s]+?>")
- src = re.ReplaceAllString(src, "")
- re, _ = regexp.Compile("\\<[\\S\\s]+?\\>")
- src = re.ReplaceAllString(src, "")
- return strings.TrimSpace(src)
- }
- //1556164246 -> 2019-04-25 03:50:46 +0000
- //timestamp
- func TimeToTimestamp() {
- fmt.Println(time.Unix(1556164246, 0).Format("2006-01-02 15:04:05"))
- }
- func ToUnicode(text string) string {
- textQuoted := strconv.QuoteToASCII(text)
- textUnquoted := textQuoted[1 : len(textQuoted)-1]
- return textUnquoted
- }
- func VersionToInt(version string) int {
- version = strings.Replace(version, ".", "", -1)
- n, _ := strconv.Atoi(version)
- return n
- }
- func IsCheckInList(list []int, s int) bool {
- for _, v := range list {
- if v == s {
- return true
- }
- }
- return false
- }
- func round(num float64) int {
- return int(num + math.Copysign(0.5, num))
- }
- func toFixed(num float64, precision int) float64 {
- output := math.Pow(10, float64(precision))
- return float64(round(num*output)) / output
- }
- // GetWilsonScore returns Wilson Score
- func GetWilsonScore(p, n float64) float64 {
- if p == 0 && n == 0 {
- return 0
- }
- return toFixed(((p+1.9208)/(p+n)-1.96*math.Sqrt(p*n/(p+n)+0.9604)/(p+n))/(1+3.8416/(p+n)), 2)
- }
- // 将中文数字转化成数字,比如 第三百四十五章,返回第345章 不支持一亿及以上
- func ChangeWordsToNum(str string) (numStr string) {
- words := ([]rune)(str)
- num := 0
- n := 0
- for i := 0; i < len(words); i++ {
- word := string(words[i : i+1])
- switch word {
- case "万":
- if n == 0 {
- n = 1
- }
- n = n * 10000
- num = num*10000 + n
- n = 0
- case "千":
- if n == 0 {
- n = 1
- }
- n = n * 1000
- num += n
- n = 0
- case "百":
- if n == 0 {
- n = 1
- }
- n = n * 100
- num += n
- n = 0
- case "十":
- if n == 0 {
- n = 1
- }
- n = n * 10
- num += n
- n = 0
- case "一":
- n += 1
- case "二":
- n += 2
- case "三":
- n += 3
- case "四":
- n += 4
- case "五":
- n += 5
- case "六":
- n += 6
- case "七":
- n += 7
- case "八":
- n += 8
- case "九":
- n += 9
- case "零":
- default:
- if n > 0 {
- num += n
- n = 0
- }
- if num == 0 {
- numStr += word
- } else {
- numStr += strconv.Itoa(num) + word
- num = 0
- }
- }
- }
- if n > 0 {
- num += n
- n = 0
- }
- if num != 0 {
- numStr += strconv.Itoa(num)
- }
- return
- }
- func Sha1(data string) string {
- sha1 := sha1.New()
- sha1.Write([]byte(data))
- return hex.EncodeToString(sha1.Sum([]byte("")))
- }
- func GetWeekDay() (weekStr string) {
- nowWeek := time.Now().Weekday().String()
- switch nowWeek {
- case "Monday":
- weekStr = "周一"
- break
- case "Tuesday":
- weekStr = "周二"
- break
- case "Wednesday":
- weekStr = "周三"
- break
- case "Thursday":
- weekStr = "周四"
- break
- case "Friday":
- weekStr = "周五"
- break
- case "Saturday":
- weekStr = "周六"
- break
- case "Sunday":
- weekStr = "周日"
- break
- default:
- weekStr = ""
- break
- }
- return
- }
- // GetNowWeekMonday 获取本周周一的时间
- func GetNowWeekMonday() time.Time {
- offset := int(time.Monday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- mondayTime := time.Now().AddDate(0, 0, offset)
- mondayTime = time.Date(mondayTime.Year(), mondayTime.Month(), mondayTime.Day(), 0, 0, 0, 0, mondayTime.Location())
- return mondayTime
- }
- // GetLastWeekMonday 获取上周周一的时间
- func GetLastWeekMonday() time.Time {
- offset := int(time.Monday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- mondayTime := time.Now().AddDate(0, 0, offset-7)
- mondayTime = time.Date(mondayTime.Year(), mondayTime.Month(), mondayTime.Day(), 0, 0, 0, 0, mondayTime.Location())
- return mondayTime
- }
- // GetNowWeekTuesday 获取本周周二的时间
- func GetNowWeekTuesday() time.Time {
- offset := int(time.Tuesday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- mondayTime := time.Now().AddDate(0, 0, offset)
- mondayTime = time.Date(mondayTime.Year(), mondayTime.Month(), mondayTime.Day(), 0, 0, 0, 0, mondayTime.Location())
- return mondayTime
- }
- // GetLastWeekTuesday 获取上周周二的时间
- func GetLastWeekTuesday() time.Time {
- offset := int(time.Tuesday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- mondayTime := time.Now().AddDate(0, 0, offset-7)
- mondayTime = time.Date(mondayTime.Year(), mondayTime.Month(), mondayTime.Day(), 0, 0, 0, 0, mondayTime.Location())
- return mondayTime
- }
- // GetNowWeekFriday 获取本周周四的时间
- func GetNowWeekThursday() time.Time {
- offset := int(time.Thursday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- fridayTime := time.Now().AddDate(0, 0, offset)
- fridayTime = time.Date(fridayTime.Year(), fridayTime.Month(), fridayTime.Day(), 0, 0, 0, 0, fridayTime.Location())
- return fridayTime
- }
- // GetLastWeekFriday 获取上周周四的时间
- func GetLastWeekThursday() time.Time {
- offset := int(time.Thursday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- fridayTime := time.Now().AddDate(0, 0, offset-7)
- fridayTime = time.Date(fridayTime.Year(), fridayTime.Month(), fridayTime.Day(), 0, 0, 0, 0, fridayTime.Location())
- return fridayTime
- }
- // GetNowWeekFriday 获取本周周五的时间
- func GetNowWeekFriday() time.Time {
- offset := int(time.Friday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- fridayTime := time.Now().AddDate(0, 0, offset)
- fridayTime = time.Date(fridayTime.Year(), fridayTime.Month(), fridayTime.Day(), 0, 0, 0, 0, fridayTime.Location())
- return fridayTime
- }
- // GetLastWeekFriday 获取上周周五的时间
- func GetLastWeekFriday() time.Time {
- offset := int(time.Friday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- fridayTime := time.Now().AddDate(0, 0, offset-7)
- fridayTime = time.Date(fridayTime.Year(), fridayTime.Month(), fridayTime.Day(), 0, 0, 0, 0, fridayTime.Location())
- return fridayTime
- }
- // GetNowWeekLastDay 获取本周最后一天的时间
- func GetNowWeekLastDay() time.Time {
- offset := int(time.Monday - time.Now().Weekday())
- if offset == 1 { //正好是周日,但是按照中国人的理解,周日是一周最后一天,而不是一周开始的第一天
- offset = -6
- }
- firstDayTime := time.Now().AddDate(0, 0, offset)
- firstDayTime = time.Date(firstDayTime.Year(), firstDayTime.Month(), firstDayTime.Day(), 0, 0, 0, 0, firstDayTime.Location()).AddDate(0, 0, 6)
- lastDayTime := time.Date(firstDayTime.Year(), firstDayTime.Month(), firstDayTime.Day(), 23, 59, 59, 0, firstDayTime.Location())
- return lastDayTime
- }
- // GetNowMonthFirstDay 获取本月第一天的时间
- func GetNowMonthFirstDay() time.Time {
- nowMonthFirstDay := time.Date(time.Now().Year(), time.Now().Month(), 1, 0, 0, 0, 0, time.Now().Location())
- return nowMonthFirstDay
- }
- // GetNowMonthLastDay 获取本月最后一天的时间
- func GetNowMonthLastDay() time.Time {
- nowMonthLastDay := time.Date(time.Now().Year(), time.Now().Month(), 1, 0, 0, 0, 0, time.Now().Location()).AddDate(0, 1, -1)
- nowMonthLastDay = time.Date(nowMonthLastDay.Year(), nowMonthLastDay.Month(), nowMonthLastDay.Day(), 23, 59, 59, 0, nowMonthLastDay.Location())
- return nowMonthLastDay
- }
- // GetNowQuarterFirstDay 获取本季度第一天的时间
- func GetNowQuarterFirstDay() time.Time {
- month := int(time.Now().Month())
- var nowQuarterFirstDay time.Time
- if month >= 1 && month <= 3 {
- //1月1号
- nowQuarterFirstDay = time.Date(time.Now().Year(), 1, 1, 0, 0, 0, 0, time.Now().Location())
- } else if month >= 4 && month <= 6 {
- //4月1号
- nowQuarterFirstDay = time.Date(time.Now().Year(), 4, 1, 0, 0, 0, 0, time.Now().Location())
- } else if month >= 7 && month <= 9 {
- nowQuarterFirstDay = time.Date(time.Now().Year(), 7, 1, 0, 0, 0, 0, time.Now().Location())
- } else {
- nowQuarterFirstDay = time.Date(time.Now().Year(), 10, 1, 0, 0, 0, 0, time.Now().Location())
- }
- return nowQuarterFirstDay
- }
- // GetNowQuarterLastDay 获取本季度最后一天的时间
- func GetNowQuarterLastDay() time.Time {
- month := int(time.Now().Month())
- var nowQuarterLastDay time.Time
- if month >= 1 && month <= 3 {
- //03-31 23:59:59
- nowQuarterLastDay = time.Date(time.Now().Year(), 3, 31, 23, 59, 59, 0, time.Now().Location())
- } else if month >= 4 && month <= 6 {
- //06-30 23:59:59
- nowQuarterLastDay = time.Date(time.Now().Year(), 6, 30, 23, 59, 59, 0, time.Now().Location())
- } else if month >= 7 && month <= 9 {
- //09-30 23:59:59
- nowQuarterLastDay = time.Date(time.Now().Year(), 9, 30, 23, 59, 59, 0, time.Now().Location())
- } else {
- //12-31 23:59:59
- nowQuarterLastDay = time.Date(time.Now().Year(), 12, 31, 23, 59, 59, 0, time.Now().Location())
- }
- return nowQuarterLastDay
- }
- // GetNowHalfYearFirstDay 获取当前半年的第一天的时间
- func GetNowHalfYearFirstDay() time.Time {
- month := int(time.Now().Month())
- var nowHalfYearLastDay time.Time
- if month >= 1 && month <= 6 {
- //03-31 23:59:59
- nowHalfYearLastDay = time.Date(time.Now().Year(), 1, 1, 0, 0, 0, 0, time.Now().Location())
- } else {
- //12-31 23:59:59
- nowHalfYearLastDay = time.Date(time.Now().Year(), 7, 1, 0, 0, 0, 0, time.Now().Location())
- }
- return nowHalfYearLastDay
- }
- // GetNowHalfYearLastDay 获取当前半年的最后一天的时间
- func GetNowHalfYearLastDay() time.Time {
- month := int(time.Now().Month())
- var nowHalfYearLastDay time.Time
- if month >= 1 && month <= 6 {
- //03-31 23:59:59
- nowHalfYearLastDay = time.Date(time.Now().Year(), 6, 30, 23, 59, 59, 0, time.Now().Location())
- } else {
- //12-31 23:59:59
- nowHalfYearLastDay = time.Date(time.Now().Year(), 12, 31, 23, 59, 59, 0, time.Now().Location())
- }
- return nowHalfYearLastDay
- }
- // GetNowYearFirstDay 获取当前年的最后一天的时间
- func GetNowYearFirstDay() time.Time {
- //12-31 23:59:59
- nowYearFirstDay := time.Date(time.Now().Year(), 1, 1, 0, 0, 0, 0, time.Now().Location())
- return nowYearFirstDay
- }
- // GetNowYearLastDay 获取当前年的最后一天的时间
- func GetNowYearLastDay() time.Time {
- //12-31 23:59:59
- nowYearLastDay := time.Date(time.Now().Year(), 12, 31, 23, 59, 59, 0, time.Now().Location())
- return nowYearLastDay
- }
- // CalculationDate 计算两个日期之间相差n年m月y天
- func CalculationDate(startDate, endDate time.Time) (beetweenDay string, err error) {
- //startDate := time.Date(2021, 3, 28, 0, 0, 0, 0, time.Now().Location())
- //endDate := time.Date(2022, 3, 31, 0, 0, 0, 0, time.Now().Location())
- numYear := endDate.Year() - startDate.Year()
- numMonth := int(endDate.Month()) - int(startDate.Month())
- numDay := 0
- //获取截止月的总天数
- endDateDays := getMonthDay(endDate.Year(), int(endDate.Month()))
- //获取截止月的前一个月
- endDatePrevMonthDate := endDate.AddDate(0, -1, 0)
- //获取截止日期的上一个月的总天数
- endDatePrevMonthDays := getMonthDay(endDatePrevMonthDate.Year(), int(endDatePrevMonthDate.Month()))
- //获取开始日期的的月份总天数
- startDateMonthDays := getMonthDay(startDate.Year(), int(startDate.Month()))
- //判断,截止月是否完全被选中,如果相等,那么代表截止月份全部天数被选择
- if endDate.Day() == endDateDays {
- numDay = startDateMonthDays - startDate.Day() + 1
- //如果剩余天数正好与开始日期的天数是一致的,那么月份加1
- if numDay == startDateMonthDays {
- numMonth++
- numDay = 0
- //超过月份了,那么年份加1
- if numMonth == 12 {
- numYear++
- numMonth = 0
- }
- }
- } else {
- numDay = endDate.Day() - startDate.Day() + 1
- }
- //天数小于0,那么向月份借一位
- if numDay < 0 {
- //向上一个月借一个月的天数
- numDay += endDatePrevMonthDays
- //总月份减去一个月
- numMonth = numMonth - 1
- }
- //月份小于0,那么向年份借一位
- if numMonth < 0 {
- //向上一个年借12个月
- numMonth += 12
- //总年份减去一年
- numYear = numYear - 1
- }
- if numYear < 0 {
- err = errors.New("日期异常")
- return
- }
- if numYear > 0 {
- beetweenDay += fmt.Sprint(numYear, "年")
- }
- if numMonth > 0 {
- beetweenDay += fmt.Sprint(numMonth, "个月")
- }
- if numDay > 0 {
- beetweenDay += fmt.Sprint(numDay, "天")
- }
- return
- }
- // getMonthDay 获取某年某月有多少天
- func getMonthDay(year, month int) (days int) {
- if month != 2 {
- if month == 4 || month == 6 || month == 9 || month == 11 {
- days = 30
- } else {
- days = 31
- }
- } else {
- if ((year%4) == 0 && (year%100) != 0) || (year%400) == 0 {
- days = 29
- } else {
- days = 28
- }
- }
- return
- }
- // SubStr 截取字符串(中文)
- func SubStr(str string, subLen int) string {
- strRune := []rune(str)
- bodyRuneLen := len(strRune)
- if bodyRuneLen > subLen {
- bodyRuneLen = subLen
- }
- str = string(strRune[:bodyRuneLen])
- return str
- }
- // InArrayByInt php中的in_array(判断Int类型的切片中是否存在该int值)
- func InArrayByInt(idIntList []int, searchId int) (has bool) {
- for _, id := range idIntList {
- if id == searchId {
- has = true
- return
- }
- }
- return
- }
- // InArrayByStr php中的in_array(判断String类型的切片中是否存在该string值)
- func InArrayByStr(idStrList []string, searchId string) (has bool) {
- for _, id := range idStrList {
- if id == searchId {
- has = true
- return
- }
- }
- return
- }
- func GetLocalIP() (ip string, err error) {
- addrs, err := net.InterfaceAddrs()
- if err != nil {
- return
- }
- for _, addr := range addrs {
- ipAddr, ok := addr.(*net.IPNet)
- if !ok {
- continue
- }
- if ipAddr.IP.IsLoopback() {
- continue
- }
- if !ipAddr.IP.IsGlobalUnicast() {
- continue
- }
- return ipAddr.IP.String(), nil
- }
- return
- }
- // 富文本字段过滤处理
- func GetRichText(content string) (contentSub string) {
- contentSub = strings.Replace(content, "<p data-f-id=\"pbf\" style=\"text-align: center; font-size: 14px; margin-top: 30px; opacity: 0.65; font-family: sans-serif;\">Powered by <a href=\"https://www.froala.com/wysiwyg-editor?pb=1\" title=\"Froala Editor\">Froala Editor</a></p>", "", -1)
- return
- }
- // GetOrmInReplace 获取orm的in查询替换?的方法
- func GetOrmInReplace(num int) string {
- template := make([]string, num)
- for i := 0; i < num; i++ {
- template[i] = "?"
- }
- return strings.Join(template, ",")
- }
- // SubFloatToFloatStr 截取小数点后几位
- func SubFloatToFloatStr(f float64, m int) string {
- newn := SubFloatToString(f, m)
- return newn
- }
- func GetVideoPlaySeconds(videoPath string) (playSeconds float64, err error) {
- cmd := fmt.Sprintf(`ffmpeg -i %s 2>&1 | grep 'Duration' | cut -d ' ' -f 4 | sed s/,//`, videoPath)
- out, err := exec.Command("bash", "-c", cmd).Output()
- if err != nil {
- return
- }
- outTimes := string(out)
- fmt.Println("outTimes:", outTimes)
- if outTimes != "" {
- timeArr := strings.Split(outTimes, ":")
- h := timeArr[0]
- m := timeArr[1]
- s := timeArr[2]
- hInt, err := strconv.Atoi(h)
- if err != nil {
- return playSeconds, err
- }
- mInt, err := strconv.Atoi(m)
- if err != nil {
- return playSeconds, err
- }
- s = strings.Trim(s, " ")
- s = strings.Trim(s, "\n")
- sInt, err := strconv.ParseFloat(s, 64)
- if err != nil {
- return playSeconds, err
- }
- playSeconds = float64(hInt)*3600 + float64(mInt)*60 + float64(sInt)
- }
- return
- }
- // GetTimeSubDay 计算两个时间的自然日期差(后面减去前面)
- func GetTimeSubDay(t1, t2 time.Time) int {
- var day int
- swap := false
- if t1.Unix() > t2.Unix() {
- t1, t2 = t2, t1
- swap = true
- }
- t1_ := t1.Add(time.Duration(t2.Sub(t1).Milliseconds()%86400000) * time.Millisecond)
- day = int(t2.Sub(t1).Hours() / 24)
- // 计算在t1+两个时间的余数之后天数是否有变化
- if t1_.Day() != t1.Day() {
- day += 1
- }
- if swap {
- day = -day
- }
- return day
- }
- // HmacSha256 计算HmacSha256
- // key 是加密所使用的key
- // data 是加密的内容
- func HmacSha256(key string, data string) []byte {
- mac := hmac.New(sha256.New, []byte(key))
- _, _ = mac.Write([]byte(data))
- return mac.Sum(nil)
- }
- // HmacSha256ToBase64 将加密后的二进制转Base64字符串
- func HmacSha256ToBase64(key string, data string) string {
- return base64.URLEncoding.EncodeToString(HmacSha256(key, data))
- }
- // MinusInt 获取两个[]int差集
- func MinusInt(a []int, b []int) []int {
- var diff []int
- mpA, mpB := make(map[int]bool), make(map[int]bool)
- for _, v := range a {
- mpA[v] = true
- }
- for _, v := range b {
- mpB[v] = true
- }
- for _, s := range a {
- if !mpB[s] {
- diff = append(diff, s)
- }
- }
- for _, s := range b {
- if !mpA[s] {
- diff = append(diff, s)
- }
- }
- return diff
- }
- func TimeTransferString(format string, t time.Time) string {
- str := t.Format(format)
- if t.IsZero() {
- return ""
- }
- return str
- }
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