.net1.1中如果需要灵活的操作和读写配置文件并不是十分方便,一般都会在项目中封装一个配置文件管理类来进行读写操作。而在.net2.0中使用ConfigurationManager 和WebConfigurationManager 类可以很好的管理配置文件,ConfigurationManager类在System.Configuration中,WebConfigurationManager在System.Web.Configuration中。根据MSDN的解释,对于 Web 应用程序配置,建议使用 System.Web.Configuration.WebConfigurationManager 类,而不要使用 System.Configuration.ConfigurationManager 类。
下面我给出一个简单的例子说明如何使用WebConfigurationManager操作配置文件:
下面我给出一个简单的例子说明如何使用WebConfigurationManager操作配置文件:
//打开配置文件
Configuration config = WebConfigurationManager.OpenWebConfiguration("~");
//获取appSettings节点
AppSettingsSection appSection = (AppSettingsSection)config.GetSection("appSettings");
//在appSettings节点中添加元素
appSection.Settings.Add("addkey1", "key1's value");
appSection.Settings.Add("addkey2", "key2's value");
config.Save();
Configuration config = WebConfigurationManager.OpenWebConfiguration("~");
//获取appSettings节点
AppSettingsSection appSection = (AppSettingsSection)config.GetSection("appSettings");
//在appSettings节点中添加元素
appSection.Settings.Add("addkey1", "key1's value");
appSection.Settings.Add("addkey2", "key2's value");
config.Save();
运行代码之后可以看见配置文件中的改变:
<appSettings>
<add key="addkey1" value="key1's value" />
<add key="addkey2" value="key2's value" />
</appSettings>
<add key="addkey1" value="key1's value" />
<add key="addkey2" value="key2's value" />
</appSettings>
修改和删除节点或属性也非常方便:
//打开配置文件
Configuration config = WebConfigurationManager.OpenWebConfiguration("~");
//获取appSettings节点
AppSettingsSection appSection = (AppSettingsSection)config.GetSection("appSettings");
//删除appSettings节点中的元素
appSection.Settings.Remove("addkey1");
//修改appSettings节点中的元素
appSection.Settings["addkey2"].Value = "Modify key2's value";
config.Save();
Configuration config = WebConfigurationManager.OpenWebConfiguration("~");
//获取appSettings节点
AppSettingsSection appSection = (AppSettingsSection)config.GetSection("appSettings");
//删除appSettings节点中的元素
appSection.Settings.Remove("addkey1");
//修改appSettings节点中的元素
appSection.Settings["addkey2"].Value = "Modify key2's value";
config.Save();
配置文件:
<appSettings>
<add key="addkey2" value="Modify key2's value" />
</appSettings>
<add key="addkey2" value="Modify key2's value" />
</appSettings>
参考:http://msdn2.microsoft.com/en-us/library/ms228060.aspx