insure/utils/str.go

package utils

import (
	"context"
	"insure/global"
	"math/rand"
	"strconv"
	"strings"
	"time"
)

func GenerateNo(noType string) string {
	now := time.Now()
	key := "no_" + noType + ":" + now.Format("200601021504")
	cxt := context.Background()
	val := global.Redis.Incr(cxt, key).Val()
	global.Redis.ExpireAt(cxt, key, now.Add(time.Minute))
	valStr := strconv.Itoa(int(val))
	l := len(valStr)
	valStr = strings.Repeat("0", l) + valStr
	return now.Format("20060102150405") + valStr
}

func GenerateRandomString(length int) string {
	charSet := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
	result := make([]byte, length)
	for i := 0; i < length; i++ {
		result[i] = charSet[rand.Intn(len(charSet))]
	}
	return string(result)
}