自己常用的java8 用法

集合对象里面取出每个对象的某个值

System.out.println(employeeInfoList.stream().map(employeeInfo::getName).collect(Collectors.toList()));

取出多个值。便于简洁返回

List<Map> resultNew =new ArrayList<>();
        result.stream().forEach(s-> {
           Map<String,String> map =new HashMap<>();
           map.put("id",s.getId());
           map.put("name",s.getName());
           map.put("employeeNo",s.getEmployeeNo());
            resultNew.add(map);
        });