139 lines
2.5 KiB
Go
139 lines
2.5 KiB
Go
package goutil
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import (
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"crypto/md5"
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"encoding/hex"
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"math/rand"
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"strings"
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"time"
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)
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func Md5(str string) string {
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h := md5.New()
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h.Write([]byte(str))
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return hex.EncodeToString(h.Sum(nil))
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}
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func StrInField(key string, str string) bool {
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str = strings.ReplaceAll(str, "，", ",")
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s1 := strings.Split(str, ",")
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for _, v := range s1 {
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if v == key {
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return true
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}
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}
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return false
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}
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func StrInSlice(key string, slice []string) bool {
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if len(slice) == 0 {
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return false
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}
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for _, v := range slice {
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if v == key {
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return true
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}
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}
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return false
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}
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func StrInPrefix(s string, arr []string) bool {
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for _, a := range arr {
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if strings.HasPrefix(s, a) {
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return true
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}
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}
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return false
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}
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// ArrayUnique 数组去重
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func StrUnique(arr []string) []string {
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set := make(map[string]bool)
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j := 0
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for _, v := range arr {
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_, ok := set[v]
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if ok {
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continue
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}
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set[v] = true
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arr[j] = v
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j++
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}
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return arr[:j]
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}
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// 生成随机字符串
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func RandomStr(length int64) string {
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str := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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bytes := []byte(str)
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result := []byte{}
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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for i := int64(0); i < length; i++ {
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result = append(result, bytes[r.Intn(len(bytes))])
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}
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return string(result)
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}
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/**
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* 驼峰转蛇形 snake string
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* @description XxYy to xx_yy , XxYY to xx_y_y
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* @date 2020/7/30
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* @param s 需要转换的字符串
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* @return string
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**/
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func SnakeString(s string) string {
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data := make([]byte, 0, len(s)*2)
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j := false
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num := len(s)
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for i := 0; i < num; i++ {
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d := s[i]
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// or通过ASCII码进行大小写的转化
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// 65-90（A-Z），97-122（a-z）
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//判断如果字母为大写的A-Z就在前面拼接一个_
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if i > 0 && d >= 'A' && d <= 'Z' && j {
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data = append(data, '_')
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}
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if d != '_' {
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j = true
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}
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data = append(data, d)
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}
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//ToLower把大写字母统一转小写
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return strings.ToLower(string(data[:]))
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}
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/**
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* 蛇形转驼峰
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* @description xx_yy to XxYx xx_y_y to XxYY
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* @date 2020/7/30
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* @param s要转换的字符串
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* @return string
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**/
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func CamelString(s string) string {
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data := make([]byte, 0, len(s))
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j := false
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k := false
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num := len(s) - 1
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for i := 0; i <= num; i++ {
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d := s[i]
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if k == false && d >= 'A' && d <= 'Z' {
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k = true
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}
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if d >= 'a' && d <= 'z' && (j || k == false) {
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d = d - 32
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j = false
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k = true
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}
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if k && d == '_' && num > i && s[i+1] >= 'a' && s[i+1] <= 'z' {
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j = true
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continue
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}
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data = append(data, d)
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}
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return string(data[:])
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}
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