@Override

    public List<RptDayMonthTargetVO> queryTarget() {

        List<RptDayMonthTarget> list = targetService.selectMonthTarget();

        //数据去重-根据Bean对象的SupplierId属性去重

        List<RptDayMonthTarget> dbList = list.stream().filter(distinctByKey(RptDayMonthTarget::getSupplierId)).collect(Collectors.toList());return voList;

    }

　　

    private static <T> Predicate<T> distinctByKey(Function<? super T, ?> keyExtractor) {

        Map<Object,Boolean> seen = new ConcurrentHashMap<>();

        return t -> seen.putIfAbsent(keyExtractor.apply(t), Boolean.TRUE) == null;

    }