//用于链接数据
Map<String, String> userIdMap = new HashMap<String, String>();
UUID roleId = DataAccessFactory.getInstance().createUUID(roleIdStr);
Set<Right> allRights = flow.queryRightsByRole(roleId);
Set<String> userSet = new HashSet<String>();
for (Right right : allRights) {
if (right != null) {
userSet.add(right.getUsername());
}