WebService 序列化和反序列化

参考了Fish LI的Xml读取文章，写了XML序列化和反序列化的文章。

序列化：把实体列转化成XML。反序列化：把XML按一定的规则转化成需要的实体列。

序列化和反序列化化使用到的类，

using System.Xml.Serialization;
using System.IO;
using System.Xml;

XML一些属性：

XMLAttribtue:属性

XMLText：xml值

XmlElement：xml标签值

XML调试，反序列化失败。常见的原因是XML的定义和Class类不一致，导致失败。我的做法是把class序列化，比较序列化的值和需要反序列化的XML有什么不同。

代码使用的类，Class C

 public class C
    {
        public string Company
        {
            get;
            set;
        }

        [XmlElement("B2")]
        public List<B> b
        {
            get;
            set;
        }
    }

    public class B
    {
        [XmlAttribute("sex")]
        public string B_Attribute
        {
            get;
            set;
        }

        [XmlAttribute("age")]
        public string B_Attribute_Age
        {
            get;
            set;
        }

        [XmlText]

        public string B_Name
        {
            get;
            set;
        }
    }

1. 序列化代码使用到的方法类，MemoryStream 初始化流，XmlWriter 创建Stream流可读写，serializer.Serialize序列化操作。StreamReader 读取序列化的流信息。

代码，

   public static string XmlSerialize(object o, Encoding encoding)
        {
            XmlSerializer serializer = new XmlSerializer(o.GetType());

            // StreamWriter 方法
            //using (MemoryStream stream = new MemoryStream())
            //{
            //    using (StreamWriter writer = new StreamWriter(stream, encoding))
            //    {
            //        serializer.Serialize(writer, o);
            //        stream.Position = 0;
            //        using (StreamReader reader = new StreamReader(stream, encoding))
            //        {
            //            return reader.ReadToEnd();
            //        }
            //    }
            //}

            // XmlWriting方法
            using (MemoryStream stream = new MemoryStream())
            {
                using (XmlWriter writer = XmlWriter.Create(stream))
                {
                    serializer.Serialize(writer, o);
                }

                stream.Position = ;

                using (StreamReader reader = new StreamReader(stream, encoding))
                {
                    return reader.ReadToEnd();
                }
            }
        }

2.反序列化化使用到的方法类，MemoryStream 流的形式初始化XML到内存中，StreamReader读取XML二进制信息，mySerializer.Deserialize反序列化为Class C

        public static T XmlDeserialize<T>(string s, Encoding encoding)
        {
            XmlSerializer mySerializer = new XmlSerializer(typeof(T));
            using (MemoryStream ms = new MemoryStream(encoding.GetBytes(s)))
            {
                using (StreamReader sr = new StreamReader(ms, encoding))
                {
                    return (T)mySerializer.Deserialize(sr);
                }
            }
        }

所有的代码如下，

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

namespace WebService
{
    class Program
    {
        static void Main(string[] args)
        {
            //C c = new C();
            //List<B> listB = new List<B>();

            //B b = new B();
            //b.A = "男";
            //listB.Add(b);

            //b = new B();
            //b.A = "女";
            //listB.Add(b);

            //b = new B();
            //b.A = "男";
            //listB.Add(b);

            //c.b = listB;
            //string str = XmlSerialize(c, Encoding.UTF8);
            //Console.WriteLine(str);

            //C cClass = XmlDeserialize<C>(@"<C><B2><A sex=""男"" /><AA>陈建</AA></B2></C>", Encoding.UTF8);

            // 最主要的是类和xml信息能对应，反序列化失败的查找方法，先序列化出来一个XML，对比XML值。
            C cClass = XmlDeserialize<C>(@"<C><Company>ctrip</Company><B2 sex=""男"" age=""31"" >chinaagan</B2></C>", Encoding.UTF8);
            B b1 = cClass.b[];
            Console.WriteLine(cClass.Company);
            Console.WriteLine("sex:" + b1.B_Attribute);
            Console.WriteLine("age:" + b1.B_Attribute_Age);
            Console.WriteLine(b1.B_Name);
            Console.Read();
        }

        public static string XmlSerialize(object o, Encoding encoding)
        {
            XmlSerializer serializer = new XmlSerializer(o.GetType());

            // StreamWriter 方法
            //using (MemoryStream stream = new MemoryStream())
            //{
            //    using (StreamWriter writer = new StreamWriter(stream, encoding))
            //    {
            //        serializer.Serialize(writer, o);
            //        stream.Position = 0;
            //        using (StreamReader reader = new StreamReader(stream, encoding))
            //        {
            //            return reader.ReadToEnd();
            //        }
            //    }
            //}

            // XmlWriting方法
            using (MemoryStream stream = new MemoryStream())
            {
                using (XmlWriter writer = XmlWriter.Create(stream))
                {
                    serializer.Serialize(writer, o);
                }

                stream.Position = ;

                using (StreamReader reader = new StreamReader(stream, encoding))
                {
                    return reader.ReadToEnd();
                }
            }
        }

        public static T XmlDeserialize<T>(string s, Encoding encoding)
        {
            XmlSerializer mySerializer = new XmlSerializer(typeof(T));
            using (MemoryStream ms = new MemoryStream(encoding.GetBytes(s)))
            {
                using (StreamReader sr = new StreamReader(ms, encoding))
                {
                    return (T)mySerializer.Deserialize(sr);
                }
            }
        }
    }

    public class C
    {
        public string Company
        {
            get;
            set;
        }

        [XmlElement("B2")]
        public List<B> b
        {
            get;
            set;
        }
    }

    public class B
    {
        [XmlAttribute("sex")]
        public string B_Attribute
        {
            get;
            set;
        }

        [XmlAttribute("age")]
        public string B_Attribute_Age
        {
            get;
            set;
        }

        [XmlText]

        public string B_Name
        {
            get;
            set;
        }
    }
}

跟上节拍，每日累积一点技术。