当我们程序中使用配置文件时,Asp.net中使用是Web.config,WinForm和Console中使用是App.config。通常用的最多是AppSettings节,有的时候觉得不够用,另一选择就是自己实现SectionHandler,来实现自定义配置节。看下面的示例AppSettings节:
<appSettings> <add key="source1user" value="user" /> <add key="source1password" value="pass" /> </appSettings>
对于上面两个配置项,要写个自定义配置类是不是很麻烦,我们还有另一种简单实现方法,使用 SingleTagSectionHandler
MSDN是这么描述的:Handles configuration sections that are represented by a single XML tag in the .config file".
下面来看一下:
<configSections> <section name="remoteDataSource" type="System.Configuration.SingleTagSectionHandler" /> </configSections> <remoteDataSource username="user" password="pass" url="http://remote/" />
代码中这样访问:
[Test] public void TestConfig() { Hashtable remoteDataSource = (Hashtable)ConfigurationManager.GetSection("remoteDataSource"); string username = (string)remoteDataSource["username"]; string password = (string)remoteDataSource["password"]; string url = (string)remoteDataSource["url"]; Assert.AreEqual("user", username); Assert.AreEqual("pass", password); }
很简单吧。还有另一种简单配置节的方法,可参见 简单实现自定义配置节 这篇Post.
Author: Petter Liu http://wintersun.cnblogs.com