bug 修复

@@ -9,6 +9,7 @@ import (
 	"oppmg/protocol"
 	"oppmg/services/ucenter"
 	"oppmg/utils"
+	"oppmg/utils/idworker"
 	"time"
 
 	"github.com/astaxie/beego/orm"
@@ -392,7 +393,7 @@ func AddFirstDepartment(newCompany *models.Company, newusercompany *models.UserC
 			IsTop:     1,
 			ParentId:  0,
 			Relation:  fmt.Sprint(utils.GenerateIDBySonyflake()),
-			Id:        utils.GenerateID14(),
+			Id:        idworker.NextId(),
 		}
 		_, err = models.AddDepartment(newDepartment, o)
 		if err != nil {

+package idworker
+
+import (
+	"sync"
+	"time"
+)
+
+const (
+	twepoch      int64 = 1483200000000 // 默认起始的毫秒时间戳 1483200000000 。计算时，减去这个值
+	sequenceBits uint  = 12            //自增ID 所占用位置
+	sequenceMax  int64 = -1 ^ (-1 << sequenceBits)
+	timeShift    uint  = sequenceBits
+)
+
+/*
+* 1 符号位  |  39 时间戳                                    | 12 （毫秒内）自增ID
+* 0        |  0000000 00000000 00000000 00000000 00000000  |  000000 000000
+*
+ */
+
+type IdWorker struct {
+	sequence      int64 //序号
+	lastTimestamp int64 //最后的时间戳
+	mutex         sync.Mutex
+	twepoch       int64 //默认起始的毫秒时间戳
+}
+
+func NewIdWorker() *IdWorker {
+	idworker := &IdWorker{
+		lastTimestamp: -1,
+		sequence:      0,
+		twepoch:       twepoch,
+		mutex:         sync.Mutex{},
+	}
+	return idworker
+}
+
+func (n *IdWorker) Generate() int64 {
+	n.mutex.Lock()
+	defer n.mutex.Unlock()
+	now := time.Now().UnixNano() / 1e6
+	if n.lastTimestamp == now {
+		n.sequence++
+		if n.sequence > sequenceMax {
+			for now <= n.lastTimestamp {
+				now = time.Now().UnixNano() / 1e6
+			}
+		}
+	} else {
+		n.sequence = 0
+	}
+	n.lastTimestamp = now
+	result := (now-twepoch)<<timeShift | n.sequence
+	return result
+}
+
+var newIdworker = NewIdWorker()
+
+//NextId 新的id， 15 个数字的 id
+func NextId() int64 {
+	return newIdworker.Generate()
+}