增加 redis 队列

go/gopath/src/fohow.com/apps/controllers/tool_controller/express_controller.go

@@ -97,9 +97,8 @@ func (self *ToolController) GetExpressInfo() {
 	ok, retStr := helpers.GetRedisValue(key)
 	beego.BeeLogger.Info("返回字符:\r\n%v%s", retStr, retStr)
 
-	if ok {
+	if ok && len(retStr) > 0 {
 		json.Unmarshal([]byte(retStr), &ret)
-
 	} else {
 		//发送请求
 		data, err := Get(juheURL, param)