java8 集合处理

        //车牌集合
        List plateNumberList = voList.stream().map(WorkOrderInstallVO :: getPlateNumber).collect(Collectors.toList());

        //车牌集合查询车详情数据（数据库）
        List dataList = vehicleInfoMapper.queryVehicleNoListInfoVOMap(plateNumberList);

        // 获取车主名称
        List enterpriseIdList = dataList.stream().map(WorkOrderInstallVO :: getOwnerId).collect(Collectors.toList());

        // 从车牌集合里查询出 管理公司ID + 车主ID (A集合+B集合)
        enterpriseIdList.addAll(dataList.stream().filter(vo -> vo.getCompanyId() != null).map(WorkOrderInstallVO :: getCompanyId).collect(Collectors.toList()));


        // 根据所有企业ID查询企业名称  (把ID集合转换成 '1,2,3,4' 字符串)
        Map enterpriseMap = platformBaseFeign.getIdToEnterpriseNameMap(enterpriseIdList.stream().distinct().map(String::valueOf).collect(Collectors.joining(",")));

        // 获取车辆数据字典类型 
        List vehicleInfoList = VehiclePublicConstant.VEHICLE_INFO_PUBLIC_INDEX_PAGE_DATA_LIST;
        Map dictionaryMap = platformBaseFeign.selectLangByDictionaryByIdTypeList(vehicleInfoList).getData();

//使用stream流把list1和list2根据属性plateNumber 车牌号 合并一个list集合
List list = page.getRecords().stream().map(m -> {
dataList.stream().filter(m2-> Objects.equals(m.getPlateNumber(),m2.getPlateNumber())).forEach(m2-> {
    m.setEnterpriseName(enterpriseMap.get(new Integer(m2.getOwnerId())));//车主名称
    if (null != m2.getCompanyId()) {
        m.setManagementName(enterpriseMap.get(new Integer(m2.getCompanyId())));//管理公司名称
    }
    m.setVehicleModelName(dictionaryMap.get(m2.getVehicleModel()));
    m.setVehicleTypeName(dictionaryMap.get(m2.getVehicleType()));

    });
    return m;
}).collect(Collectors.toList());
    }