diff --git a/beego.go b/beego.go
index 7c0a7ca7..bcbf0496 100644
--- a/beego.go
+++ b/beego.go
@@ -15,11 +15,11 @@
 package beego
 
 import (
-	"fmt"
 	"os"
 	"path/filepath"
 	"strconv"
 	"strings"
+	"net/http"
 )
 
 // beego web framework version.
@@ -41,16 +41,20 @@ func AddAPPStartHook(hf hookfunc) {
 
 // Run beego application.
 // beego.Run() default run on HttpPort
+// beego.Run("localhost")
 // beego.Run(":8089")
 // beego.Run("127.0.0.1:8089")
 func Run(params ...string) {
 	initBeforeHTTPRun()
 
-	params = append(params, fmt.Sprintf("%s:%d", HTTPAddr, HTTPPort))
-	addr := strings.Split(params[0], ":")
-	if len(addr) == 2 {
-		HTTPAddr = addr[0]
-		HTTPPort, _ = strconv.Atoi(addr[1])
+	if len(params) > 0 && params[0] != "" {
+		strs := strings.Split(params[0], ":")
+		if len(strs) > 0 && strs[0] != "" {
+			HTTPAddr = strs[0]
+		}
+		if len(strs) > 1 && strs[1] != "" {
+			HTTPPort, _ = strconv.Atoi(strs[1])
+		}
 	}
 
 	BeeApp.Run()