util/string.go

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// Package util...
//
// Description : 字符串相关的工具
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2021-03-09 6:00 下午
package util
import (
"crypto/md5"
"encoding/hex"
"math/rand"
"strings"
"time"
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"github.com/axgle/mahonia"
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)
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// stringOperate ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 15:09 2022/5/14
type stringOperate struct {
}
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// GenRandom 获取随机长度的字符串
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//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 6:01 下午 2021/3/9
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func (s *stringOperate) GenRandom(source string, length uint) string {
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if length == 0 {
return ""
}
if len(source) == 0 {
//字符串为空,默认字符源为如下(去除易混淆的i/l):
source = "0123456789abcdefghjkmnopqrstuvwxyzABCDEFGHJKMNOPQRSTUVWXYZ"
}
strByte := []byte(source)
var genStrByte = make([]byte, 0)
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < int(length); i++ {
genStrByte = append(genStrByte, strByte[r.Intn(len(strByte))])
}
return string(genStrByte)
}
// Md5 对字符串进行md5加密
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 6:01 下午 2021/3/9
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func (s *stringOperate) Md5(str string) string {
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h := md5.New()
_, _ = h.Write([]byte(str))
return hex.EncodeToString(h.Sum(nil))
}
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// Md5FromByte 从字节数组计算签名
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2022/10/21 14:12:16
func (s *stringOperate) Md5FromByte(data []byte) string {
h := md5.New()
_, _ = h.Write(data)
return hex.EncodeToString(h.Sum(nil))
}
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// GenRandomMd5 生成随机md5
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 20:11 2022/7/12
func (s *stringOperate) GenRandomMd5() string {
return s.Md5(s.GenRandom("", 16))
}
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// SnakeCaseToCamel 蛇形字符串转换为驼峰
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 4:58 下午 2021/10/25
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func (s *stringOperate) SnakeCaseToCamel(str string) string {
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if len(str) == 0 {
return ""
}
builder := strings.Builder{}
index := 0
if str[0] >= 'a' && str[0] <= 'z' {
builder.WriteByte(str[0] - ('a' - 'A'))
index = 1
}
for i := index; i < len(str); i++ {
if str[i] == '_' && i+1 < len(str) {
if str[i+1] >= 'a' && str[i+1] <= 'z' {
builder.WriteByte(str[i+1] - ('a' - 'A'))
i++
continue
}
}
// 将ID转为大写
if str[i] == 'd' && i-1 >= 0 && (str[i-1] == 'i' || str[i-1] == 'I') && (i+1 == len(str) || i+1 < len(str) && str[i+1] == '_') {
builder.WriteByte('d' - ('a' - 'A'))
continue
}
builder.WriteByte(str[i])
}
return builder.String()
}
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// Convert 字符串编码转换
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 14:38 2022/7/9
func (s *stringOperate) Convert(str string, sourceCode string, targetCode string) string {
sourceCoder := mahonia.NewDecoder(sourceCode)
sourceResult := sourceCoder.ConvertString(str)
targetCoder := mahonia.NewDecoder(targetCode)
_, cdata, _ := targetCoder.Translate([]byte(sourceResult), true)
return string(cdata)
}
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// RemoveDuplicates 对列表数据去重
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 21:12 2022/7/23
func (s *stringOperate) RemoveDuplicates(sourceList []string) []string {
result := make([]string, 0)
hasDeal := make(map[string]bool)
if len(sourceList) == 0 {
return result
}
for _, val := range sourceList {
if _, exist := hasDeal[val]; exist {
continue
}
result = append(result, val)
hasDeal[val] = true
}
return result
}
// Map2Query map参数转换为url query
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 20:51 2022/10/10
func (s *stringOperate) Map2Query(data map[string]string) string {
list := make([]string, 0)
for k, v := range data {
list = append(list, k+"="+v)
}
return strings.Join(list, "&")
}
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// ClearChar 清理指定字符
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//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 16:53 2023/1/13
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func (s *stringOperate) ClearChar(src string, charList ...string) string {
if len(charList) == 0 {
return src
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}
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for _, item := range charList {
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src = strings.ReplaceAll(src, item, "")
}
return src
}