bug修改

@@ -113,10 +113,10 @@ public class ProductController {
             , @RequestParam(value = "page", required = false)Integer page
             ) {
         LOG.info("in method=ufo.product.secondHand.list storageId={}, second_type={}, sort={}, limit={}, page ={}", storageId, secondType, sort, limit, page);
-        if (limit < 1) {
+        if (limit == null || limit < 1) {
             limit = 10;
         }
-        if (page < 1) {
+        if (page == null || page < 1) {
             page = 1;
         }
         JSONObject resp = productService.querySecondHandProductList(storageId, secondType, sort, limit, page);