判斷某個值在list中是否存在

if (!startAds.stream().filter(w->String.valueOf(w.getId()).equals(startAdvertisingBean.getId())).findAny().isPresent()){ 
//說明不存在
if (startAds.getTotalElements() >= this.headMax) {
Map<String, String> result = new HashMap<>();
result.put("msg", "啟動頁廣告啟用數量超過上限，上限為" + this.headMax);
return ResponseBeanFactory.buildFailedModifyParmBean(result);
}
}

判斷startAdvertisingBean.getId()在startAds這個list的id屬性中是否存在