1.输入指定字段值,快速查出list中字段值为指定值的对象
//devName为要查询的值,devDataDC.getDevName()为要查询的字段,devDataDCList为要查询的list,baseDevDataDC 为查到的对象
BaseDevDataDC baseDevDataDC = devDataDCList.stream().filter(devDataDC -> devName.equals(devDataDC.getDevName())).findFirst().orElse(null);