C# XML和实体类之间相互转换(序列化和反序列化)

时间:2023-03-09 15:47:17
C# XML和实体类之间相互转换(序列化和反序列化)

我们需要在XML与实体类,DataTable,List之间进行转换,下面是XmlUtil类,该类来自网络并稍加修改。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Data;
using System.Xml;
using System.Xml.Serialization; /// <summary>
/// Xml序列化与反序列化
/// </summary>
public class XmlUtil
{
#region 反序列化
/// <summary>
/// 反序列化
/// </summary>
/// <param name="type">类型</param>
/// <param name="xml">XML字符串</param>
/// <returns></returns>
public static object Deserialize(Type type, string xml)
{
try
{
using (StringReader sr = new StringReader(xml))
{
XmlSerializer xmldes = new XmlSerializer(type);
return xmldes.Deserialize(sr);
}
}
catch (Exception e)
{ return null;
}
}
/// <summary>
/// 反序列化
/// </summary>
/// <param name="type"></param>
/// <param name="xml"></param>
/// <returns></returns>
public static object Deserialize(Type type, Stream stream)
{
XmlSerializer xmldes = new XmlSerializer(type);
return xmldes.Deserialize(stream);
}
#endregion #region 序列化
/// <summary>
/// 序列化
/// </summary>
/// <param name="type">类型</param>
/// <param name="obj">对象</param>
/// <returns></returns>
public static string Serializer(Type type, object obj)
{
MemoryStream Stream = new MemoryStream();
XmlSerializer xml = new XmlSerializer(type);
try
{
//序列化对象
xml.Serialize(Stream, obj);
}
catch (InvalidOperationException)
{
throw;
}
Stream.Position = 0;
StreamReader sr = new StreamReader(Stream);
string str = sr.ReadToEnd(); sr.Dispose();
Stream.Dispose(); return str;
} #endregion
}

下面是测试代码:

1. 实体对象转换到Xml

public class Student
{
public string Name { set; get; }
public int Age { set; get; }
} Student stu1 = new Student() { Name = "okbase", Age = 10 };
string xml = XmlUtil.Serializer(typeof(Student), stu1);
Console.Write(xml);

2. Xml转换到实体对象

Student stu2 = XmlUtil.Deserialize(typeof(Student), xml) as Student;
Console.Write(string.Format("名字:{0},年龄:{1}", stu2.Name, stu2.Age));

3. DataTable转换到Xml

// 生成DataTable对象用于测试
DataTable dt1 = new DataTable("mytable"); // 必须指明DataTable名称 dt1.Columns.Add("Dosage", typeof(int));
dt1.Columns.Add("Drug", typeof(string));
dt1.Columns.Add("Patient", typeof(string));
dt1.Columns.Add("Date", typeof(DateTime)); // 添加行
dt1.Rows.Add(25, "Indocin", "David", DateTime.Now);
dt1.Rows.Add(50, "Enebrel", "Sam", DateTime.Now);
dt1.Rows.Add(10, "Hydralazine", "Christoff", DateTime.Now);
dt1.Rows.Add(21, "Combivent", "Janet", DateTime.Now);
dt1.Rows.Add(100, "Dilantin", "Melanie", DateTime.Now); // 序列化
xml = XmlUtil.Serializer(typeof(DataTable), dt1);
Console.Write(xml);

4. Xml转换到DataTable

// 反序列化
DataTable dt2 = XmlUtil.Deserialize(typeof(DataTable), xml) as DataTable; // 输出测试结果
foreach (DataRow dr in dt2.Rows)
{
foreach (DataColumn col in dt2.Columns)
{
Console.Write(dr[col].ToString() + " ");
} Console.Write("\r\n");
}

5. List转换到Xml

// 生成List对象用于测试
List<Student> list1 = new List<Student>(3); list1.Add(new Student() { Name = "okbase", Age = 10 });
list1.Add(new Student() { Name = "****", Age = 15 });
// 序列化
xml = XmlUtil.Serializer(typeof(List<Student>), list1);
Console.Write(xml);

6. Xml转换到List

List<Student> list2 = XmlUtil.Deserialize(typeof(List<Student>), xml) as List<Student>;
foreach (Student stu in list2)
{
Console.WriteLine(stu.Name + "," + stu.Age.ToString());
}

从代码可以看到,千变万化不离其宗!