复杂 XML 的 序列化 反序列化

已知.xml(再此命名default.xml)文件，请将其反序列化到一个实例对象。

<?xml version="1.0" encoding="utf-8" ?>
<config>
  <rules>
    <rule name="namea">
      <params>
        <item name="p" type="get" pattern="(ios|android|)" />
        <item name="cid" type="get" pattern="(ios|android|)" />
        <item name="type" type="get" pattern="(ios|android|)" />
        <item name="sort" type="get" pattern="(ios|android|)" />
        <item name="action" type="post" pattern="(ios|android|)" />
        <item name="userAgent" type="header" pattern="(ios|android|)" />
      </params>
    </rule>
 
    <rule name="nameb">
      <params>
        <item name="p" type="get" pattern="(ios|android|)" />
        <item name="cid" type="get" pattern="(ios|android|)" />
        <item name="type" type="get" pattern="(ios|android|)" />
        <item name="sort" type="get" pattern="(ios|android|)" />
        <item name="action" type="post" pattern="(ios|android|)" />
        <item name="userAgent" type="header" pattern="(ios|android|)" />
      </params>
    </rule>
 
    <rule name="namec">
      <params>
        <item name="p" type="get" pattern="(ios|android|)" />
        <item name="cid" type="get" pattern="(ios|android|)" />
        <item name="type" type="get" pattern="(ios|android|)" />
        <item name="sort" type="get" pattern="(ios|android|)" />
        <item name="action" type="post" pattern="(ios|android|)" />
        <item name="userAgent" type="header" pattern="(ios|android|)" />
      </params>
    </rule>
 
    <rule name="named">
      <params>
        <item name="p" type="get" pattern="(ios|android|)" />
        <item name="cid" type="get" pattern="(ios|android|)" />
        <item name="type" type="get" pattern="(ios|android|)" />
        <item name="sort" type="get" pattern="(ios|android|)" />
        <item name="action" type="post" pattern="(ios|android|)" />
        <item name="userAgent" type="header" pattern="(ios|android|)" />
      </params>
    </rule>
  </rules>
</config>

---

C#示例代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Serialization;

namespace 多层级反序列
{
    [XmlType(TypeName = "config")]
    public class XmlConfig
    {
        [XmlArray("rules")]
        public List<rule> rules { get; set; }
    }

    [XmlType(TypeName = "rule")]
    public class rule
    {
        [XmlAttribute]
        public string name { get; set; }

        [XmlArray("params")]
        public List<paramsItem> @params { get; set; }
    }

    [XmlType(TypeName = "item")]
    public class paramsItem
    {
        [XmlAttribute]
        public string name { get; set; }
        [XmlAttribute]
        public string type { get; set; }
        [XmlAttribute]
        public string pattern { get; set; }
    }

    class Program
    {
        static void Main(string[] args)
        {
            /*
            XmlConfig xml1 = DeserializeFromXml<XmlConfig>("default.xml");
            XmlConfig xml = new XmlConfig();
            SerializeToXml<XmlConfig>("default.xml", xml);
            */

            XmlConfig xml1 = DeserializeFromXml<XmlConfig>("default.xml");

        }

        /// <summary>
        /// XML序列化某一类型到指定的文件
        /// </summary>
        /// <param name="filePath"></param>
        /// <param name="obj"></param>
        /// <param name="type"></param>
        public static void SerializeToXml<T>(string filePath, T obj)
        {
            try
            {
                using (System.IO.StreamWriter writer = new System.IO.StreamWriter(filePath))
                {
                    System.Xml.Serialization.XmlSerializer xs = new System.Xml.Serialization.XmlSerializer(typeof(T));
                    xs.Serialize(writer, obj);
                }
            }
            catch (Exception ex)
            {
            }
        }
        /// <summary>
        /// 从某一XML文件反序列化到某一类型
        /// </summary>
        /// <param name="filePath">待反序列化的XML文件名称</param>
        /// <param name="type">反序列化出的</param>
        /// <returns></returns>
        public static T DeserializeFromXml<T>(string filePath)
        {
            try
            {
                if (!System.IO.File.Exists(filePath))
                    throw new ArgumentNullException(filePath + " not Exists");

                using (System.IO.StreamReader reader = new System.IO.StreamReader(filePath))
                {
                    System.Xml.Serialization.XmlSerializer xs = new System.Xml.Serialization.XmlSerializer(typeof(T));
                    T ret = (T)xs.Deserialize(reader);
                    return ret;
                }
            }
            catch (Exception ex)
            {
                return default(T);
            }
        }
    }
}