排序列表 原生方法和comparator方法

1.通过原生，重写sort比较器

String通过ascii码值比较，小的在前，datetime通过时间比较，老的在前

 public void sortProjectTechnicianList(List<ProjectTechnicianRow> projectTechnicianRows) {
        projectTechnicianRows.sort((o1, o2) -> {
            int cmp = o1.getCustomerName().compareTo(o2.getCustomerName());
            if (cmp == 0) {
                cmp = o1.getProjectName().compareTo(o2.getProjectName());
                if (cmp == 0) {
                    cmp = o1.getBelongCompany().compareTo(o2.getBelongCompany());
                    if (cmp == 0) {
                        cmp = o1.getTechnicianId().compareTo(o2.getTechnicianId());
                        if (cmp == 0) {
                            cmp = o1.getCreateTime().compareTo(o2.getCreateTime());
                        }
                    }
                }
            }
            return cmp;
        });
    }

2.Comparator比较器，简单地通过项目名称进行排序

  basicProjectEntities.sort(Comparator.comparing(BasicProjectEntity::getProjectName));

它的老版本写法是

 Collections.sort(basicProjectEntities, new Comparator<BasicProjectEntity>() {
            @Override
            public int compare(BasicProjectEntity p1, BasicProjectEntity p2) {
                return p1.getProjectName().compareTo(p2.getProjectName());
            }
        });