摘要:
A layer of Mappers1 that moves data between objects and a database while keepingthem independent of each other and the mapper itself. -- Martin Fowler 阅读全文
摘要:
- Data Annotations are attributes that you apply directly to theclass or properties that you want to affect. These can be found in the System.ComponentModel.DataAnnotations namespace.classAnimalType{publicintId{get;set;}[Required]publicstringTypeName{get;set;}}when it’s time to SaveChanges, Entity F 阅读全文
摘要:
1. 基本概念 Memcached 是一个高性能的分布式内存对象缓存系统,用于动态Web应用以减轻数据库负载。它通过在内存中缓存数据和对象来减少读取数据库的次数,从而提供动态、数据库驱动网站的速度。Memcached基于一个存储键/值对的hashmap。其守护进程(daemon )是用C写的,但是客户端可以用任何语言来编写,并通过memcached协议与守护进程通信。缺点: 它并不提供冗余(例如,复制其hashmap条目);当某个服务器S停止运行或崩溃了,所有存放在S上的键/值对都将丢失。As we know, the current cache in ASP.NET is an in-pr. 阅读全文