geekai/api/go/utils/strings.go
2023-06-22 11:08:44 +08:00

80 lines
1.5 KiB
Go

package utils
import (
"encoding/json"
"fmt"
"math/rand"
"time"
"golang.org/x/crypto/sha3"
)
// RandString generate rand string with specified length
func RandString(length int) string {
str := "0123456789abcdefghijklmnopqrstuvwxyz"
data := []byte(str)
var result []byte
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < length; i++ {
result = append(result, data[r.Intn(len(data))])
}
return string(result)
}
func RandomNumber(bit int) int {
rand.Seed(time.Now().UnixNano())
min := 1 // min value
max := 1 //max value
for i := 0; i < bit; i++ {
min = min * 10
max = max * 10
}
max = max * 10
return rand.Intn(max-min+1) + min
}
func ContainsStr(slice []string, item string) bool {
for _, e := range slice {
if e == item {
return true
}
}
return false
}
// Stamp2str 时间戳转字符串
func Stamp2str(timestamp int64) string {
if timestamp == 0 {
return ""
}
return time.Unix(timestamp, 0).Format("2006-01-02 15:04:05")
}
// Str2stamp 字符串转时间戳
func Str2stamp(str string) int64 {
layout := "2006-01-02 15:04:05"
t, err := time.Parse(layout, str)
if err != nil {
return 0
}
return t.Unix()
}
func GenPassword(pass string, salt string) string {
data := []byte(pass + salt)
hash := sha3.Sum256(data)
return fmt.Sprintf("%x", hash)
}
func JsonEncode(value interface{}) string {
bytes, err := json.Marshal(value)
if err != nil {
return ""
}
return string(bytes)
}
func JsonDecode(src string, dest interface{}) error {
return json.Unmarshal([]byte(src), dest)
}