C#获取XML文件内容的多种方式总结

2023-01-28 06:09

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C#获取XML文件内容的方式

首先设定有一个xml文件Configs.xml,其内容如下：

<?xml version="1.0" encoding="utf-8" ?>
<Config>
  <Device name="aaa">
    <Type name="a01" func="1"></Type>
    <Type name="a02"></Type>
    <Type name="a03"></Type>
    <Type name="a04"></Type>
  </Device>
  <Device name="bbb">
    <Type name="b01"></Type>
    <Type name="b02"></Type>
    <Type name="b03"></Type>
    <Type name="b04"></Type>
  </Device>
  <Device name="ccc">
    <Type name="c01"></Type>
    <Type name="c02"></Type>
    <Type name="c03"></Type>
    <Type name="c04" func="2"></Type>
  </Device>
</Config>

一、读取外部的XML文件方法

//获取所有一级目录
List<string> devices = new List<string>();
XmlDocument doc = new XmlDocument();
doc.Load(AppDomain.CurrentDomain.BaseDirectory + @"\TEMP\Configs.xml");
XmlNode xnl1 = doc.DocumentElement;
foreach (XmlNode xn1 in xnl1.ChildNodes)
{
    XmlElement xe1 = (XmlElement)xn1;
    devices.Add(xe1.GetAttribute("name").ToString());
}
return devices;

//获取某个一级目录下的子目录
 List<string> types = new List<string>();
 XmlDocument doc = new XmlDocument();
 doc.Load(AppDomain.CurrentDomain.BaseDirectory + @"\TEMP\Configs.xml");
 XmlNode xnl1 = doc.DocumentElement;
 foreach (XmlNode xn1 in xnl1)
 {
     XmlElement xe1 = (XmlElement)xn1;
     if (xe1.GetAttribute("name").ToString() == "aaa")
     {
         XmlNodeList xnl2 = xe1.ChildNodes;
         foreach (XmlNode xn2 in xnl2)
         {
             XmlElement xe2 = (XmlElement)xn2;
             types.Add(xe2.GetAttribute("name").ToString());
         }
         break;
     }
 }
 return types;

二、读取内部XML文件方法

文件属性：

复制到输出目录：不复制

生成操作：嵌入的资源

//获取所有一级目录
List<string> devices = new List<string>();         
string config= System.Reflection.Assembly.GetExecutingAssembly().GetName().Name + ".Configs.Configs.xml";
System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
System.IO.Stream s = assembly.GetManifestResourceStream(config);

XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreComments = true;
XmlReader reader = XmlReader.Create(s, settings);
XmlDocument doc = new XmlDocument();

doc.Load(reader);
XmlNode xn = doc.SelectSingleNode("Config");
XmlNodeList xnl1 = xn.ChildNodes;
foreach (XmlNode xn1 in xnl1)
{
    XmlElement xe1 = (XmlElement)xn1;
    devices.Add(xe1.GetAttribute("name").ToString());
}
reader.Close();
return devices;

//获取某个一级目录下的子目录
List<string> types = new List<string>();           
string config= System.Reflection.Assembly.GetExecutingAssembly().GetName().Name + ".Configs.Configs.xml";
System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
System.IO.Stream s = assembly.GetManifestResourceStream(config);

XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreComments = true;
XmlReader reader = XmlReader.Create(s, settings);
XmlDocument doc = new XmlDocument();

doc.Load(reader);
XmlNode xn = doc.SelectSingleNode("Config");
XmlNodeList xnl1 = xn.ChildNodes;
foreach (XmlNode xn1 in xnl1)
{
    XmlElement xe1 = (XmlElement)xn1;
    if (xe1.GetAttribute("name").ToString() == "aaa")
    {
        XmlNodeList xnl2 = xe1.ChildNodes;
        foreach (XmlNode xn2 in xnl2)
        {
            XmlElement xe2 = (XmlElement)xn2;
            types.Add(xe2.GetAttribute("name").ToString());
        }
        break;
    }
}
reader.Close();
return types;

三、读取类库中XML文件的方法

文件属性：

复制到输出目录：不复制

生成操作：Resource

List<Type> types = new List<Type>();
string fileName = AppDomain.CurrentDomain.BaseDirectory + "Config.dll";
System.Reflection.Assembly assembly = System.Reflection.Assembly.LoadFile(fileName);
string resourceName = assembly.GetName().Name + ".g";
System.Resources.ResourceManager manager = new System.Resources.ResourceManager(resourceName, assembly);
object obj = manager.GetObject("asserts/config.xml");//全部字母小写
System.IO.Stream stream = (System.IO.Stream)obj;

XmlDocument doc = new XmlDocument();
XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreComments = true;//忽略文档里面的注释，因为在没有特别说明的情况下，注释也是一个节点
XmlReader reader = XmlReader.Create(stream, settings);

doc.Load(reader);
XmlNode xn = doc.SelectSingleNode("Config");
XmlNodeList xnl1 = xn.ChildNodes;

foreach (XmlNode xn1 in xnl1)
{
    XmlElement xe1 = (XmlElement)xn1;
    Type type = new Type();
    type.name = xe1.GetAttribute("name").ToString();
    type.func = xe1.GetAttribute("func").ToString();
    XmlNodeList xnl0 = xe1.ChildNodes;
    type.Content = xnl0.Item(0).InnerText.Substring(1).TrimEnd();
    types.Add(type);
}
reader.Close();
return types;

四、读取程序内添加的外部可见的XML文件

文件属性：

复制到输出目录：始终复制

生成操作：内容

List<string> devices= new List<string>();
XmlDocument doc = new XmlDocument();
XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreComments = true;
XmlReader reader = XmlReader.Create(@"Asserts\Config.xml", settings);

doc.Load(reader);
XmlNode xn = doc.SelectSingleNode("Config");
XmlNodeList xnl1 = xn.ChildNodes;

foreach (XmlNode xn1 in xnl1)
{
    XmlElement xe1 = (XmlElement)xn1;
    devices.Add(xe1.GetAttribute("name").ToString());
}
reader.Close();
return serialsList;