diff --git a/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/service/impl/SysAnnouncementServiceImpl.java b/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/service/impl/SysAnnouncementServiceImpl.java
index 65e36eb8..3cf99fa8 100644
--- a/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/service/impl/SysAnnouncementServiceImpl.java
+++ b/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/service/impl/SysAnnouncementServiceImpl.java
@@ -32,10 +32,10 @@ public class SysAnnouncementServiceImpl extends ServiceImpl<SysAnnouncementMappe
 
 	@Resource
 	private SysAnnouncementMapper sysAnnouncementMapper;
-	
+
 	@Resource
 	private SysAnnouncementSendMapper sysAnnouncementSendMapper;
-	
+
 	@Transactional
 	@Override
 	public void saveAnnouncement(SysAnnouncement sysAnnouncement) {
@@ -59,7 +59,7 @@ public class SysAnnouncementServiceImpl extends ServiceImpl<SysAnnouncementMappe
 			}
 		}
 	}
-	
+
 	/**
 	 * @功能：编辑消息信息
 	 */
@@ -75,11 +75,11 @@ public class SysAnnouncementServiceImpl extends ServiceImpl<SysAnnouncementMappe
 			String anntId = sysAnnouncement.getId();
 			Date refDate = new Date();
 			for(int i=0;i<userIds.length;i++) {
-				LambdaQueryWrapper<SysAnnouncementSend> queryWrapper = new LambdaQueryWrapper<SysAnnouncementSend>();
+				LambdaQueryWrapper<SysAnnouncementSend> queryWrapper = new LambdaQueryWrapper<>();
 				queryWrapper.eq(SysAnnouncementSend::getAnntId, anntId);
 				queryWrapper.eq(SysAnnouncementSend::getUserId, userIds[i]);
 				List<SysAnnouncementSend> announcementSends=sysAnnouncementSendMapper.selectList(queryWrapper);
-				if(announcementSends.size()<=0) {
+				if(announcementSends.isEmpty()) {
 					SysAnnouncementSend announcementSend = new SysAnnouncementSend();
 					announcementSend.setAnntId(anntId);
 					announcementSend.setUserId(userIds[i]);
@@ -90,7 +90,7 @@ public class SysAnnouncementServiceImpl extends ServiceImpl<SysAnnouncementMappe
 			}
 			// 3. 删除多余通知用户数据
 			Collection<String> delUserIds = Arrays.asList(userIds);
-			LambdaQueryWrapper<SysAnnouncementSend> queryWrapper = new LambdaQueryWrapper<SysAnnouncementSend>();
+			LambdaQueryWrapper<SysAnnouncementSend> queryWrapper = new LambdaQueryWrapper<>();
 			queryWrapper.notIn(SysAnnouncementSend::getUserId, delUserIds);
 			queryWrapper.eq(SysAnnouncementSend::getAnntId, anntId);
 			sysAnnouncementSendMapper.delete(queryWrapper);