分布式锁
数据定位在java购物车系统中的应用
目录一、通过主键和外键实现数据库数据定位1. 用户ID（user_id）作为购物车的定位标识2. 商品ID（product_id）用于商品定位二、通过缓存（Redis）进行快速数据定位1. 使用userId作为Key定位购物车2. 存储结构3. 数据[详细]
2024-10-29 14:20 分类：开发亚马逊计划每年为影院提供12部原创电影？
亚马逊今天宣布，将开始加强原创内容的制作，计划每年为影院和PrimeInstantVideo服务用户提供12部原创电影。[详细]
2022-12-29 20:20 分类：问答三七多少钱一克啊？？
ffafff 2022-03-15 00:49 开发者_如何转开发 这个有很多种，具体你可以去超市，药店去看看，正常三七粉价格也要看头数的，20头贵些600元/kg，40头260/kg.还有30头，60头，去药店买的话会比这个价高些！[详细]
2022-12-29 01:14 分类：问答Why GLatLng() doesn't receive variables?
i have the following code to update a google map: function updateit(c1,c2){ alert(c1+\"-\"+c2); // This works[详细]
2022-12-29 01:14 分类：问答gu开头的成语有哪些？？
天下有我更精彩 2022-03-19 20:44 开发者_如何学编程 根据成语接龙规则，开头为“俩”的成语根本就无法找到，所以这是一个BUG，一个顶俩就是一个无法被领取的接龙红包！a小小白菜[详细]
2022-12-28 15:06 分类：问答Using HTTP Vary header to decide on a strategy to process a request
I have a specific REST endpoint that creates a topic in a forum; but I want to apply different strategies when processing the request. e.g. If client A makes the call, perform moderation. if client B[详细]
2022-12-25 15:55 分类：问答plugin from github not successfully installing
When I place this in my base application html.haml file: = javascript_include_tag :defaults, \'jquery-1.3.2.min\', \'highcharts\'[详细]
2022-12-25 07:08 分类：问答PropertyGrid: Merging multiple dynamic properties when editing multiple objects
Let\'s say I have a class A and a class B. I would like to edit using .NET PropertyGrid multiple instances of A and B simultaneously. The desired behavior would be to have the intersection of properti[详细]
2022-12-25 07:02 分类：问答HTML - How to hide postbacks?
Can someone let me know the technique 开发者_Python百科used to \'hide\' postback when pressing a button?If you want to stop the page from refreshing, you can use an UpdatePanel in the Ajax Control Too[详细]
2022-12-25 07:01 分类：问答
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