java - 如何在java spring boot中通过localDateTime过滤对象？

Question

我有对象，这是它的描述？

public MemberSkills(User user, BasicSkills skills, Short level, Short status, LocalDateTime confirmDate, String comment) {
    this.user = user;
    this.skills = skills;
    this.level = level;
    this.status = status;
    this.confirmDate = confirmDate;
    this.comment = comment;
}

我想按从“confirmDate”到“confirmDate”过滤 MemberSkill。 我正在使用 Java-8 和 Java-springboot。 我尝试过，但没有成功。

LocalDateTime fromdate = LocalDateTime.parse(memberSkillRequest.getFromDate(), formatter);
LocalDateTime toDate = LocalDateTime.parse(memberSkillRequest.getToDate(), formatter);

List<MemberSkills> filterMemberSkill = memberSkills.stream().filter(memberSkill -> memberSkill.getConfirmDate().isBefore(fromdate)).collect(Collectors.toList());
List<MemberSkills> listMemberSkill = filterMemberSkill.stream().filter(memberSkill -> memberSkill.getConfirmDate().isAfter(toDate)).collect(Collectors.toList());

fromdate 和 todate 从客户端发送过来。

Answer 1

可能是因为您正在第一个过滤列表上运行第二个过滤，该列表已经排除了第二个过滤器中的任何内容。你应该能够做这样的事情 -

List<MemberSkills> filterMemberSkill = memberSkills.stream()
                 .filter(memberSkill -> memberSkill.getConfirmDate().isBefore(toDate) 
                                   && memberSkill.getConfirmDate().isAfter(fromDate))
                 .collect(Collectors.toList());