- <img th:src="(policys==null or ${policys[0].titleImg}==null or ${policys[0].titleImg} == '')?${portalHost+'/img/index/index_new2.jpg'}:${avatarUploadHost+policys[0].titleImg}" alt="">
+ <img th:if="${policys[0]}!=null" th:src="(${policys[0].titleImg}==null or ${policys[0].titleImg} == '')?${portalHost+'/img/index/index_new2.jpg'}:${avatarUploadHost+policys[0].titleImg}" alt="">