添加零件修改

watero-rst-web/src/main/java/com/iamberry/rst/controllers/pts/AdminMachineController.java

@@ -118,7 +118,7 @@ public class AdminMachineController {
     @RequestMapping("/_LatestMachine_list")
     public List<PtsMachine> listLatestMachine(HttpServletRequest request) {
         String machineId = request.getParameter("machineId");
-        if (machineId == null) {
+        if (machineId == null || machineId.equals("")) {
             return null;
         }
         return machineService.listLatestMachine(Integer.valueOf(machineId));