add printer get printers

controllers/controller.go

@@ -106,3 +106,11 @@ func captchaVerify(c *gin.Context, code string) bool {
 		return false
 	}
 }
+
+func buildErrJson(c *gin.Context, err error) {
+	c.JSON(http.StatusOK, &CallBack{
+		Code: model.ErrCodeNormal,
+		Desc: err.Error(),
+	})
+	globals.SugarLogger.Debugf("End API :%s error:%v:", c.Request.URL, err)
+}