Files
iotlcm/server/internal/library/batchimport/batch_no.go
T
MiFaZhan 2ed5dfa6a1 chore: 初始开源发布
iotlcm-app:小程序端 + 用户端服务。

- app/:uni-app 小程序前端(基于 unibest,MIT)
  - 微信 AppID → YOUR_WX_APPID,uni-app AppID → __UNI__YOURAPPID
  - 内网后端地址 → admin.iotlcm.example.com
  - 应用标题与 unibest 模板 README 重写(保留上游致谢与 MIT 声明)
- server/:GoFrame 用户端服务(基于 XiuAdmin,Apache-2.0)
  - module xiuadmin → git.5iot.com/iotlcm-public/iotlcm-app(360 文件)
  - 支付回调地址 → app.iotlcm.example.com,商户名与应用名泛化
  - 真实手机号 → 合法 11 位编造号(保留号段前 3 位 + 后 4 位)
  - 依赖号码尾部的断言同步更新
  - 补 server/LICENSE(Apache-2.0)
- 移除内部资产:CI 触发器
- 补根 README,LF 行尾 + .gitattributes

已知:TestSysDept_RefreshDeptAncestors 在源仓同一提交上同样失败,属既有缺陷。
2026-10-26 14:01:25 +08:00

118 lines
3.1 KiB
Go

package batchimport
import (
"context"
"crypto/rand"
"fmt"
"strings"
"time"
"github.com/gogf/gf/v2/errors/gerror"
"github.com/gogf/gf/v2/frame/g"
)
const (
batchNoPrefixLength = 3
batchNoSequenceLength = 3
batchNoSequenceMax = 999
batchNoSequenceTTL = 48 * time.Hour
batchNoSequenceRedisPrefix = "iotlcm:batch:no:seq:"
randomNoSuffixLength = 8
randomNoAlphabet = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789"
)
func NextBatchNo(prefix string) (string, error) {
return NextBatchNoContext(context.Background(), prefix)
}
func NextBatchNoContext(ctx context.Context, prefix string) (string, error) {
prefix, err := normalizeBatchNoPrefix(prefix)
if err != nil {
return "", err
}
if ctx == nil {
ctx = context.Background()
}
now := time.Now()
seq, err := nextDailyBatchSequence(ctx, now)
if err != nil {
return "", err
}
return formatBatchNo(prefix, now, seq)
}
func NextRandomNo(prefix string) (string, error) {
prefix = strings.TrimSpace(strings.ToUpper(prefix))
if prefix == "" {
return "", gerror.New("编号前缀不能为空")
}
random, err := randomNoSuffix(randomNoSuffixLength)
if err != nil {
return "", err
}
return fmt.Sprintf("%s%s%s", prefix, time.Now().Format("20060102150405"), random), nil
}
func normalizeBatchNoPrefix(prefix string) (string, error) {
prefix = strings.TrimSpace(strings.ToUpper(prefix))
if prefix == "" {
return "", gerror.New("批次号前缀不能为空")
}
if len(prefix) != batchNoPrefixLength {
return "", gerror.Newf("批次号前缀必须为%d位", batchNoPrefixLength)
}
return prefix, nil
}
func nextDailyBatchSequence(ctx context.Context, now time.Time) (int64, error) {
key := batchNoSequenceKey(now)
script := `
local v = redis.call("INCR", KEYS[1])
if v == 1 then
redis.call("EXPIRE", KEYS[1], ARGV[1])
end
return v`
res, err := g.Redis().Do(ctx, "EVAL", script, 1, key, int(batchNoSequenceTTL.Seconds()))
if err != nil {
return 0, gerror.Wrap(err, "生成批次号序号失败")
}
seq := res.Int64()
if seq <= 0 {
return 0, gerror.New("生成批次号序号失败")
}
if seq > batchNoSequenceMax {
return 0, gerror.Newf("当日批次号序号超过%03d", batchNoSequenceMax)
}
return seq, nil
}
func batchNoSequenceKey(now time.Time) string {
return batchNoSequenceRedisPrefix + now.Format("20060102")
}
func formatBatchNo(prefix string, now time.Time, seq int64) (string, error) {
if seq <= 0 || seq > batchNoSequenceMax {
return "", gerror.Newf("批次号序号必须在1-%03d之间", batchNoSequenceMax)
}
return fmt.Sprintf("%s%s%0*d", prefix, now.Format("20060102150405"), batchNoSequenceLength, seq), nil
}
func randomNoSuffix(length int) (string, error) {
if length <= 0 {
return "", gerror.New("随机码长度必须大于0")
}
buf := make([]byte, length)
randomBytes := make([]byte, length)
if _, err := rand.Read(randomBytes); err != nil {
return "", gerror.Wrap(err, "生成随机码失败")
}
alphabetLen := byte(len(randomNoAlphabet))
for i, b := range randomBytes {
buf[i] = randomNoAlphabet[b%alphabetLen]
}
return string(buf), nil
}