diff --git a/business/jxutils/jxcontext/jxcontext.go b/business/jxutils/jxcontext/jxcontext.go
index eb379f49e..f75cd3b0d 100644
--- a/business/jxutils/jxcontext/jxcontext.go
+++ b/business/jxutils/jxcontext/jxcontext.go
@@ -18,6 +18,10 @@ type Context struct {
 	locker   sync.RWMutex
 }
 
+const (
+	MaxUserNameLen = 30
+)
+
 var (
 	AdminCtx *Context
 )
@@ -43,8 +47,8 @@ func (ctx *Context) GetUserName() string {
 	if ctx.userInfo != nil {
 		userName = ctx.userInfo.ID
 	}
-	if len(userName) > 10 {
-		userName = userName[:10]
+	if len(userName) > MaxUserNameLen {
+		userName = userName[:MaxUserNameLen]
 	}
 	return userName
 }