1. 把tunnelid函数放到其他地方

2.在创建tunnel的时候显示每个tunnel属于哪个model
3.增加了queuecache的测试

utils/tunnelid.go

@@ -0,0 +1,23 @@
+package utils
+
+import (
+	"bytes"
+	"crypto/md5"
+	"encoding/hex"
+	"strconv"
+	"sync/atomic"
+	"time"
+)
+
+var seed int32
+
+func init() {
+	seed = 0
+}
+
+func TunnelID() string {
+	nowString := time.Now().String() + strconv.Itoa(int(seed))
+	atomic.AddInt32(&seed, 1) //避免多线程情况下获得的种子相同
+	md5Byte := md5.Sum(bytes.NewBufferString(nowString).Bytes())
+	return hex.EncodeToString(md5Byte[:])
+}