fix collage

@@ -93,12 +93,11 @@ public class CollagePageService extends AbstractPageSceneService {
         try {
             logger.info("[class=CollageService][func=searchList][param={}][begin={}]", paramMap.toString(), System.currentTimeMillis());
             // 1.构造查询参数
-            int pageSize = StringUtils.isBlank(paramMap.get("viewNum")) ? 10 : Integer.parseInt(paramMap.get("viewNum"));
-            int page = StringUtils.isBlank(paramMap.get("page")) ? 1 : Integer.parseInt(paramMap.get("page"));
+            int pageSize = MapUtils.getIntValue(paramMap,"viewNum",10);
+            int page = MapUtils.getIntValue(paramMap,"page",1);
             if (page < 1 || pageSize < 0) {
                 return new SearchApiResult().setCode(400).setMessage("分页参数错误");
             }
-
             this.addParamsToParamMap(paramMap);
 
             //2、查询正在生效的活动ids