Question

我正在尝试编写一些代码来反序列化XML文件。我环顾了一下，找到了一些让我采用以下方法的东西：

    public static void Deserialize(string filePath)
    {
        RootObject ro = null;
        string path = filePath;

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

        StreamReader reader = new StreamReader(path);
        ro = (RootObject) serializer.Deserialize(reader);
        reader.Close();
    }

但我得到的只是这个错误而且我不确定是什么导致它：

XML文档（2,2）中存在错误。

你在Deserialize（）中看到的RootObject就是这个：我是XMl序列化/反序列化的新手，所以我不确定我是否已经100％正确定义它。

    public class RootObject
    {
        public Services Services { get; set; }
    }

    public class Services
    {
        public Service TileMapService { get; set; }
    }

    public class Service
    {
        public string Title { get; set; }
        public string href { get; set; }
    }

我正在使用此方法首先创建XML文件，它似乎工作正常：

    public static void WriteToXmlFile<T>(string filePath, T objectToWrite) where T : new()
    {
        TextWriter writer = null;
        try
        {
            var serializer = new XmlSerializer(typeof (T));
            writer = new StreamWriter(filePath);
            serializer.Serialize(writer, objectToWrite);
        }
        finally
        {
            if (writer != null)
            {
                writer.Close();
            }
        }
    }

它为我提供了一个如下所示的XML文件：

<RootObject xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Services>
    <TileMapService>
      <Title>Some title</Title>
      <href>http://something</href>
    </TileMapService>
  </Services>
</RootObject>

Answer 1

您的代码运行正常。＆＃34; XML文档中存在错误（2,2）。＆＃34;可能是因为您的实际文件（不是WriteToXmlFile<T>创建的文件）在开始时有空格，或者使用了错误的命名空间。查看.InnerException以获取更多详细信息，或者（可能更简单）请发布实际 xml文件内容。它运行良好的例子（以及对两个关键方法的一些推荐调整）：

static void Main()
{
    RootObject obj = new RootObject
    {
        Services = new Services
        {
            TileMapService = new Service
            {
                Title = "abc",
                href = "def"
            }
        }
    };
    WriteToXmlFile("foo.xml", obj);
    var loaded = Deserialize<RootObject>("foo.xml");
    var svc = loaded.Services.TileMapService;
    System.Console.WriteLine(svc.Title); // abc
    System.Console.WriteLine(svc.href); // def
}
public static void WriteToXmlFile<T>(string filePath, T objectToWrite)
{       
    var serializer = new XmlSerializer(typeof(T));
    using (var writer = new StreamWriter(filePath))
    {
        serializer.Serialize(writer, objectToWrite);
    }
}
public static T Deserialize<T>(string filePath)
{
    var serializer = new XmlSerializer(typeof(T));
    using (var reader = new StreamReader(filePath))
    {
        return (T)serializer.Deserialize(reader);
    }
}

反序列化时出错

1 个答案: