.NET(C#)使用Serialize、Deserialize序列和反序列化XML文档

本文给大家分享一下C#操作（读取、写入）XML文档的实用方法，即用.NET本身提供的Deserialize和Serialize进行反序列化和序列化XML文档。这种方法主要是对比较规范的XML文档进行操作，因为它（XML文档）和类对象是严格对应的，否则在反序列或序列化的时候会出现错误。其他的不用多说，直接看示例代码吧：

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;

namespace _01XMLSerialize
{
    class Program
    {
        private static List<UserInfo> list = new List<UserInfo>()
        {
            new UserInfo()
            {
                Id = 1,
                UserName = "张三",
                UserPass = "FDASDFAS",
                Email = "zhangsan@163.com",
                RegTime = DateTime.Now
            },
            new UserInfo()
            {
                Id = 2,
                UserName = "李四",
                UserPass = "FDASDFAS",
                Email = "lisi@163.com",
                RegTime = DateTime.Now
            },
            new UserInfo()
            {
                Id = 3,
                UserName = "王五",
                UserPass = "FDASDFAS",
                Email = "wangwu@163.com",
                RegTime = DateTime.Now
            },
            new UserInfo()
            {
                Id = 4,
                UserName = "赵六",
                UserPass = "FDASDFAS",
                Email = "zhaoliu@163.com",
                RegTime = DateTime.Now
            },
            new UserInfo()
            {
                Id = 5,
                UserName = "田七",
                UserPass = "FDASDFAS",
                Email = "tianqi@163.com",
                RegTime = DateTime.Now
            },
            new UserInfo()
            {
                Id = 6,
                UserName = "王八",
                UserPass = "FDASDFAS",
                Email = "wangba@163.com",
                RegTime = DateTime.Now
            }
        };
        static void Main(string[] args)
        {
            //序列化对象生成文件
            WriteSingleXml();

            //反序列化文件生成对象
            ReadListXml();

            Console.ReadKey();
        }

        /// <summary>
        /// 从XML文件中反序列化对象
        /// </summary>
        private static void ReadListXml()
        {
            //反序列化文件
            Console.WriteLine("反序列化XML文件为集合");
            var reader = new XmlSerializer(typeof(List<UserInfo>));

            using (var fs = File.OpenRead("UserInfo.xml"))
            {
                var result = reader.Deserialize(fs) as List<UserInfo>;

                result.ForEach(Console.WriteLine);
            }
            Console.WriteLine("反序列化成功");
        }

        /// <summary>
        /// 序列化对象到XML文件
        /// </summary>
        private static void WriteSingleXml()
        {
            //序列化集合为xml文件
            Console.WriteLine("序列化集合为XML文件");

            var reader = new XmlSerializer(typeof(List<UserInfo>));
            //写入文件
            using (var fs = File.OpenWrite("UserInfo.xml"))
            {
                reader.Serialize(fs, list);
            }

            Console.WriteLine("写入成功");
        }
    }
}

运行结果如图：

生成的XML文档如下:

<?xml version="1.0"?>
<ArrayOfUserInfo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <UserInfo>
    <Id>1</Id>
    <UserName>张三</UserName>
    <UserPass>FDASDFAS</UserPass>
    <Email>zhangsan@163.com</Email>
    <RegTime>2016-04-21T09:15:58.5576551+08:00</RegTime>
  </UserInfo>
  <UserInfo>
    <Id>2</Id>
    <UserName>李四</UserName>
    <UserPass>FDASDFAS</UserPass>
    <Email>lisi@163.com</Email>
    <RegTime>2016-04-21T09:15:58.5576551+08:00</RegTime>
  </UserInfo>
  <UserInfo>
    <Id>3</Id>
    <UserName>王五</UserName>
    <UserPass>FDASDFAS</UserPass>
    <Email>wangwu@163.com</Email>
    <RegTime>2016-04-21T09:15:58.5576551+08:00</RegTime>
  </UserInfo>
  <UserInfo>
    <Id>4</Id>
    <UserName>赵六</UserName>
    <UserPass>FDASDFAS</UserPass>
    <Email>zhaoliu@163.com</Email>
    <RegTime>2016-04-21T09:15:58.5576551+08:00</RegTime>
  </UserInfo>
  <UserInfo>
    <Id>5</Id>
    <UserName>田七</UserName>
    <UserPass>FDASDFAS</UserPass>
    <Email>tianqi@163.com</Email>
    <RegTime>2016-04-21T09:15:58.5576551+08:00</RegTime>
  </UserInfo>
  <UserInfo>
    <Id>6</Id>
    <UserName>王八</UserName>
    <UserPass>FDASDFAS</UserPass>
    <Email>wangba@163.com</Email>
    <RegTime>2016-04-21T09:15:58.5576551+08:00</RegTime>
  </UserInfo>
</ArrayOfUserInfo>