这里有新鲜出炉的精品教程,程序狗速度看过来!
feilong-core 是一个让 Java 开发更简便的工具包, 可以让你从大量重复的底层代码中脱身, 提高工作效率; 让你的代码更简炼,易写、易读、易于维护;
本次升级共有 13 处变更, 具体参见 1.10.2 milestone
1.10.2 文档地址: http://feilong-core.mydoc.io/
可以统一修改 集合里面指定属性的值 see #606
对于以下购物车全选的代码:
- //找到需要处理的对象list
- List<ShoppingCartLineCommand> toDoNeedChangeCheckedCommandList = select( needChangeCheckedCommandList, toggleCheckStatusShoppingCartLinePredicateBuilder.build(shoppingCartLineCommandList, checkStatus));
- // 将状态修改成对应状态
- for (ShoppingCartLineCommand shoppingCartLineCommand : toDoNeedChangeCheckedCommandList) { shoppingCartLineCommand.setSettlementState(1);
- }
此时你还可以:
- //找到需要处理的对象list
- List<ShoppingCartLineCommand> toDoNeedChangeCheckedCommandList = select( needChangeCheckedCommandList, toggleCheckStatusShoppingCartLinePredicateBuilder.build(shoppingCartLineCommandList, checkStatus));
- // 将状态修改成对应状态
- CollectionsUtil.forEach(toDoNeedChangeCheckedCommandList, "settlementState", 1);
场景: 将 user list 先按照 id desc 再按照 age asc 进行排序
- User id12_age18 = new User(12L, 18);
- User id1_age8 = new User(1L, 8);
- User id2_age30 = new User(2L, 30);
- User id2_age2 = new User(2L, 2);
- User id2_age36 = new User(2L, 36);
- List<User> list = toList(id12_age18, id2_age36, id2_age2, id2_age30, id1_age8); sortListByPropertyNamesValue(list, "id desc", "age"); assertThat(list, contains(id12_age18, id2_age2, id2_age30, id2_age36, id1_age8));
来源: http://www.phperz.com/article/17/0502/334469.html