我如何反序列化这个XML文档:

<?xml version="1.0" encoding="utf-8"?>
<Cars>
  <Car>
    <StockNumber>1020</StockNumber>
    <Make>Nissan</Make>
    <Model>Sentra</Model>
  </Car>
  <Car>
    <StockNumber>1010</StockNumber>
    <Make>Toyota</Make>
    <Model>Corolla</Model>
  </Car>
  <Car>
    <StockNumber>1111</StockNumber>
    <Make>Honda</Make>
    <Model>Accord</Model>
  </Car>
</Cars>

我有这个:

[Serializable()]
public class Car
{
    [System.Xml.Serialization.XmlElementAttribute("StockNumber")]
    public string StockNumber{ get; set; }

    [System.Xml.Serialization.XmlElementAttribute("Make")]
    public string Make{ get; set; }

    [System.Xml.Serialization.XmlElementAttribute("Model")]
    public string Model{ get; set; }
}

.

[System.Xml.Serialization.XmlRootAttribute("Cars", Namespace = "", IsNullable = false)]
public class Cars
{
    [XmlArrayItem(typeof(Car))]
    public Car[] Car { get; set; }

}

.

public class CarSerializer
{
    public Cars Deserialize()
    {
        Cars[] cars = null;
        string path = HttpContext.Current.ApplicationInstance.Server.MapPath("~/App_Data/") + "cars.xml";

        XmlSerializer serializer = new XmlSerializer(typeof(Cars[]));

        StreamReader reader = new StreamReader(path);
        reader.ReadToEnd();
        cars = (Cars[])serializer.Deserialize(reader);
        reader.Close();

        return cars;
    }
}

这似乎并不奏效:-(


当前回答

对于初学者来说

我发现这里的答案非常有用,也就是说我仍然挣扎(只是一点点)让它工作。所以,为了帮助别人,我将详细说明工作解决方案:

来自原始问题的XML。该xml位于Class1.xml文件中,代码中使用该文件的路径来定位该xml文件。

我使用@erymski的答案来让它工作,所以创建了一个名为Car.cs的文件,并添加以下内容:

使用System.Xml.Serialization;/ /添加 公务车 { 公开字符串StockNumber {get;设置;} Make {get;设置;} 模型{get;设置;} } [XmlRootAttribute(“汽车”)] 公共类CarCollection { [XmlElement(“汽车”)] 公共汽车[]汽车{得到;设置;} }

@erymski提供的另一段代码…

使用(TextReader reader =新的StreamReader(路径)) { XmlSerializer serializer = new XmlSerializer(typeof(CarCollection)); serializer.Deserialize(reader); }

... 进入你的主程序(program .cs),在静态CarCollection XCar()中,像这样:

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

namespace ConsoleApp2
{
    class Program
    {

        public static void Main()
        {
            var c = new CarCollection();

            c = XCar();

            foreach (var k in c.Cars)
            {
                Console.WriteLine(k.Make + " " + k.Model + " " + k.StockNumber);
            }
            c = null;
            Console.ReadLine();

        }
        static CarCollection XCar()
        {
            using (TextReader reader = new StreamReader(@"C:\Users\SlowLearner\source\repos\ConsoleApp2\ConsoleApp2\Class1.xml"))
            {
                XmlSerializer serializer = new XmlSerializer(typeof(CarCollection));
                return (CarCollection)serializer.Deserialize(reader);
            }
        }
    }
}

希望能有所帮助:-)

其他回答

试试这个用于Xml序列化和反序列化的泛型类。

public class SerializeConfig<T> where T : class
{
    public static void Serialize(string path, T type)
    {
        var serializer = new XmlSerializer(type.GetType());
        using (var writer = new FileStream(path, FileMode.Create))
        {
            serializer.Serialize(writer, type);
        }
    }

    public static T DeSerialize(string path)
    {
        T type;
        var serializer = new XmlSerializer(typeof(T));
        using (var reader = XmlReader.Create(path))
        {
            type = serializer.Deserialize(reader) as T;
        }
        return type;
    }
}

下面的代码段应该可以做到这一点(你可以忽略大部分序列化属性):

public class Car
{
  public string StockNumber { get; set; }
  public string Make { get; set; }
  public string Model { get; set; }
}

[XmlRootAttribute("Cars")]
public class CarCollection
{
  [XmlElement("Car")]
  public Car[] Cars { get; set; }
}

...

using (TextReader reader = new StreamReader(path))
{
  XmlSerializer serializer = new XmlSerializer(typeof(CarCollection));
  return (CarCollection) serializer.Deserialize(reader);
}

这是一个工作版本。我将XmlElementAttribute标签更改为XmlElement,因为在xml中,StockNumber、Make和Model值是元素,而不是属性。我还删除了reader.ReadToEnd();(该函数读取整个流并返回一个字符串,因此Deserialize()函数不能再使用阅读器了…位置在小溪的尽头)。我在命名上也做了一些改动:)。

下面是这些类:

[Serializable()]
public class Car
{
    [System.Xml.Serialization.XmlElement("StockNumber")]
    public string StockNumber { get; set; }

    [System.Xml.Serialization.XmlElement("Make")]
    public string Make { get; set; }

    [System.Xml.Serialization.XmlElement("Model")]
    public string Model { get; set; }
}


[Serializable()]
[System.Xml.Serialization.XmlRoot("CarCollection")]
public class CarCollection
{
    [XmlArray("Cars")]
    [XmlArrayItem("Car", typeof(Car))]
    public Car[] Car { get; set; }
}

反序列化函数:

CarCollection cars = null;
string path = "cars.xml";

XmlSerializer serializer = new XmlSerializer(typeof(CarCollection));

StreamReader reader = new StreamReader(path);
cars = (CarCollection)serializer.Deserialize(reader);
reader.Close();

和稍微调整的xml(我需要添加一个新元素来包装<Cars>…Net对反序列化数组很挑剔):

<?xml version="1.0" encoding="utf-8"?>
<CarCollection>
<Cars>
  <Car>
    <StockNumber>1020</StockNumber>
    <Make>Nissan</Make>
    <Model>Sentra</Model>
  </Car>
  <Car>
    <StockNumber>1010</StockNumber>
    <Make>Toyota</Make>
    <Model>Corolla</Model>
  </Car>
  <Car>
    <StockNumber>1111</StockNumber>
    <Make>Honda</Make>
    <Model>Accord</Model>
  </Car>
</Cars>
</CarCollection>

有两种可能。

方法1。XSD的工具

假设XML文件位于C:\path\to\ XML \file. XML

打开开发人员命令提示符 你可以在开始菜单>程序> Microsoft Visual Studio 2012 > Visual Studio工具中找到它 或者如果你有Windows 8,可以在开始屏幕中输入开发人员命令提示符 输入cd /D "C:\path\to\ XML " 通过输入XSD file.xml从xml文件创建XSD文件 通过输入xsd / C file.xsd创建c#类

就是这样!您已经从C:\path\到\xml\file.cs中的xml文件生成了c#类

方法2 -粘贴特殊

要求Visual Studio 2012+

将XML文件的内容复制到剪贴板 向您的解决方案添加新的空类文件(Shift+Alt+C) 打开该文件,在菜单中单击编辑>粘贴特殊>粘贴XML作为类

就是这样!

使用


这个helper类的用法非常简单:

using System;
using System.IO;
using System.Web.Script.Serialization; // Add reference: System.Web.Extensions
using System.Xml;
using System.Xml.Serialization;

namespace Helpers
{
    internal static class ParseHelpers
    {
        private static JavaScriptSerializer json;
        private static JavaScriptSerializer JSON { get { return json ?? (json = new JavaScriptSerializer()); } }

        public static Stream ToStream(this string @this)
        {
            var stream = new MemoryStream();
            var writer = new StreamWriter(stream);
            writer.Write(@this);
            writer.Flush();
            stream.Position = 0;
            return stream;
        }


        public static T ParseXML<T>(this string @this) where T : class
        {
            var reader = XmlReader.Create(@this.Trim().ToStream(), new XmlReaderSettings() { ConformanceLevel = ConformanceLevel.Document });
            return new XmlSerializer(typeof(T)).Deserialize(reader) as T;
        }

        public static T ParseJSON<T>(this string @this) where T : class
        {
            return JSON.Deserialize<T>(@this.Trim());
        }
    }
}

你现在要做的就是:

    public class JSONRoot
    {
        public catalog catalog { get; set; }
    }
    // ...

    string xml = File.ReadAllText(@"D:\file.xml");
    var catalog1 = xml.ParseXML<catalog>();

    string json = File.ReadAllText(@"D:\file.json");
    var catalog2 = json.ParseJSON<JSONRoot>();

一个衬套:

var object = (Cars)new XmlSerializer(typeof(Cars)).Deserialize(new StringReader(xmlString));