init: initial commit

This commit is contained in:
Blizzard
2026-02-06 14:44:06 +08:00
commit 3115b58cb2
133 changed files with 25889 additions and 0 deletions
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package uniqueid
import (
"crypto/rand"
"fmt"
"math/big"
"strings"
"github.com/google/uuid"
)
func GenerateId() string {
uuidV1, err := uuid.NewUUID()
if err != nil {
panic(err)
}
return uuidV1.String()
}
func GenerateName() string {
str := uuid.New().String()
//生成一个用户名 比如花友u278bb 中文后的字符随机生成 不可重复 取str的前六位
return "花友" + str[6:12]
}
// GenerateRandomCode 生成邀请码
func GenerateRandomCode(length int) string {
const charset = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
var sb strings.Builder
for i := 0; i < length; i++ {
n, _ := rand.Int(rand.Reader, big.NewInt(int64(len(charset))))
sb.WriteByte(charset[n.Int64()])
}
return sb.String()
}
// GenCodeKey 生成邀请码的key
func GenCodeKey(userId string) string {
return fmt.Sprintf("code:%s", userId)
}
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package uniqueid
import (
"fmt"
"time"
)
func GenOrderNo() string {
/*
支付宝订单号示例:1217752501201407033233368028
分析可能格式:
- 前14位:时间戳(年月日时分秒)20250112 151420
- 中间6位:商户/业务标识
- 最后8位:随机数或序列号
*/
now := time.Now()
// 时间部分:年月日时分秒
timePart := now.Format("20060102150405") // 14位
// 业务标识:机器ID + 进程ID + 随机数
machineID := 1
pid := now.Nanosecond() % 1000
businessPart := fmt.Sprintf("%02d%03d%01d", machineID, pid, now.Second()%10) // 6位
// 随机部分:纳秒取模
random1 := fmt.Sprintf("%04d", now.Nanosecond()%10000)
random2 := fmt.Sprintf("%04d", (now.Nanosecond()/10000)%10000)
return timePart + businessPart + random1 + random2
}