PetShop项目学习笔记（一）

PetShop项目学习

数据库结构

工厂方法模式

页面缓存

缓存了页面中的一些变量

文件缓存依赖

消息队列

ORM了解

————2012-3-12-16:40:51————

今天才真正看了PetShop的代码，感觉好复杂啊！微软用ADO.net实现了类似于ORM的机制。

首先PetShop在Oracle中的数据表如下，包括4个解决方案：

程序集描述：

Model定义用到的对象类

DBUnitility数据库操作，看了OracleHelper abstract类，主要包括五个静态的连接字符串：

 public static readonly string ConnectionStringLocalTransaction = ConfigurationManager.ConnectionStrings["OraConnString1"].ConnectionString;
        public static readonly string ConnectionStringInventoryDistributedTransaction = ConfigurationManager.ConnectionStrings["OraConnString2"].ConnectionString;
        public static readonly string ConnectionStringOrderDistributedTransaction = ConfigurationManager.ConnectionStrings["OraConnString3"].ConnectionString;
        public static readonly string ConnectionStringProfile = ConfigurationManager.ConnectionStrings["OraProfileConnString"].ConnectionString;
        public static readonly string ConnectionStringMembership = ConfigurationManager.ConnectionStrings["OraMembershipConnString"].ConnectionString;

不过奇怪的是在Web.config文件中连接字符标签都没有，可以看到的只有下面的东西！RSAProtectedConfigurationProvider是什么啊？

一查，原来是提供使用 RSA 加密对配置数据进行加密和解密的，提供了一种方法以加密存储在配置文件中的敏感信息，这有助于防止对这些信息进行未经授权的访问。(参考：http://msdn.microsoft.com/zh-cn/library/system.configuration.rsaprotectedconfigurationprovider(VS.80).aspx）

<connectionStrings configProtectionProvider="RsaProtectedConfigurationProvider">
        <EncryptedData Type="http://www.w3.org/2001/04/xmlenc#Element" xmlns="http://www.w3.org/2001/04/xmlenc#">
            <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#tripledes-cbc"/>
            <KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">
                <EncryptedKey xmlns="http://www.w3.org/2001/04/xmlenc#">
                    <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-1_5"/>
                    <KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">
                        <KeyName>Rsa Key</KeyName>
                    </KeyInfo>
                    <CipherData>
                        <CipherValue>xV/ayWV3paJMvcGPXixX8ylWquj9ercwS2+2ZyfT4QbxqefHI5e8k7z/7W7cp+Fi9LjrEkdDulLq2tTDyQQlmquj65ue2DwiGCAG4qVgm8wZheJu08YAYEj8aq1oJNU/iebj7MJX0WDSr5NLW6+U1uofmuW5XurZdL/btGU+I+8=</CipherValue>
                    </CipherData>
                </EncryptedKey>
            </KeyInfo>
            <CipherData>
                <CipherValue>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</CipherValue>
            </CipherData>
        </EncryptedData>
    </connectionStrings>

从程序的入口Default.aspx进入，分析代码，先看NavigationControl代码，

 private void BindCategories() {
            Category category = new Category();
            repCategories.DataSource = category.GetCategories();
            repCategories.DataBind();            
        }

沿着这一条路走下来，可以理解一些东西了！