4、java8的stream的应用

(1) 对list类型进行内部操作，然后返回list对象

List childCommentVoList = (List) commentVo.getChild();
                childCommentVoList = childCommentVoList.stream().map(childCommentVo -> {
                    String commentVoUserId = childCommentVo.getUserId();
                    childCommentVo.setDeleteBool(Objects.equals(currentUserId, commentVoUserId));
                    return setCommentVoByDeleteLogo(childCommentVo, content);
                }).collect(Collectors.toList());

(2) 获取list中的某个数值进行对比判断

if(roleCount>=1 || depts.parallelStream().anyMatch(r -> r != null && simpleName.startsWith(r.getSimpleName()))){
	return true;
}

(3)