将应用程序设置导出为 XML
本文关键字:XML 应用程序 设置 | 更新日期: 2023-09-27 18:30:40
以下情况:
我已将一些值保存到我的应用程序设置(属性.设置)中在此设置中,我还保存了一些对象,其中存储了这些对象的属性。
现在我想实现一个函数来将我的设置导出到 xml 文件中。
对于整数值和字符串,我是这样做的:
XmlWriter writer = XmlWriter.Create(path, settings);
writer.WriteStartDocument();
writer.WriteElementString("ServerIP", Settings.Default.ServerIP);
writer.WriteElementString("ServerPort", Settings.Default.ServerPort.ToString());
writer.WriteEndDocument();
writer.Flush();
writer.Close();
好的..我希望这是正确的方法,直到现在。
现在我需要将我的对象存储到这个文件中。
我的想法是使用 XmlSerializer 类。但不幸的是,我完全不知道如何使用它将对象与其他值组合在一个 XML 文件中
此外,以下是我要写入 XML 文件的类的代码:http://pastebin.com/PmB4tM7b
为了对对象使用 XML 序列化,您需要使用预定义的序列化属性修饰保存类的类或数据结构:
// block of settings like
// <Service>
// <Name>Service1</Name>
// <Description>Starts the service 1</Description>
// </Service>
public class SettingsService
{
// will be a node in the XML file
[XmlElement(ElementName="Name")]
public string Name { get; set; }
// will be a node too
[XmlElement(ElementName="Description")]
public string Description { get; set; }
}
// holds a list of services
// <Services>
// <Service>...</Service>
// <Service>...</Service>
// </Services>
public class ServicesSettings
{
// list of services
[XmlArray(ElementName="SettingsServices")]
public List<SettingsService> Services { get; set; }
// single value!
[XmlElement(ElementName="SettingsPort")]
public int PortNumber { get; set; }
}
// serializes the objects to XML file
public void SerializeModels(string filename, ServicesSettings settings)
{
var xmls = new XmlSerializer(settings.GetType());
var writer = new StreamWriter(filename);
xmls.Serialize(writer, settings);
writer.Close();
}
// retrieves the objects from an XML file
public ServicesSettings DeserializeModels(string filename)
{
var fs = new FileStream(filename, FileMode.Open);
var xmls = new XmlSerializer(typeof(WindowsServicesControllerSettings));
return (WindowsServicesControllerSettings) xmls.Deserialize(fs);
}
可以这样使用:
var service1 = new SettingsService { Name = "Service1", Description = "Blah blah" };
var service2 = new SettingsService { Name = "Service2", Description = "Blah blah blup" };
var services = new List<SettingsService> { service1, service2 };
var settings = new ServicesSettings
{
Services = services,
PortNumber = 1234
};
this.SerializeModels(@"d:'temp'settings.xml", settings);
此行创建以下 XML 文件:
<?xml version="1.0" encoding="utf-8"?>
<ServicesSettings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SettingsServices>
<SettingsService>
<Name>Service1</Name>
<Description>Blah blah</Description>
</SettingsService>
<SettingsService>
<Name>Service2</Name>
<Description>Blah blah blup</Description>
</SettingsService>
</SettingsServices>
<SettingsPort>1234</SettingsPort>
</ServicesSettings>
从 XML 文件中检索对象:
var settings = this.DeserializeModels(@"d:'temp'settings.xml");