c# - 为什么反序列化不起作用？

Question

我通常使用(反)序列化。我以前从未遇到过问题，但我认为这只是我看不到的人为错误......序列化工作完美，但反序列化不完美。

这是我的代码:

using System;
using System.IO;
using System.Windows.Forms;
using Utils;

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

namespace Tests
{
    public partial class MainForm : Form
    {
        private Test test;

        public MainForm()
        {
            InitializeComponent();
        }

        private void SaveButton_Click(object sender, EventArgs e)
        {
            try
            {
                test = new Test();
                test.MyInt = int.Parse(MyIntTextBox.Text);
                test.MyStr = MyStrTextBox.Text;
                test.Save();
                MessageBox.Show("Serialized!", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Exception caught", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void LoadButton_Click(object sender, EventArgs e)
        {
            try
            {
                test = Test.Load();
                MyIntTextBox.Text = test.MyInt.ToString();
                MyStrTextBox.Text = test.MyStr;
                MessageBox.Show("Deserialized!", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Exception caught", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

    }

    [Serializable]
    public class Test
    {
        public string MyStr { set; get; }
        public int MyInt { set; get; }

        public void Save()
        {
            using (StreamWriter sw = new StreamWriter("TestSerialized.xml"))
            {
                XmlSerializer xs = new XmlSerializer(typeof(Test));
                xs.Serialize(sw, this);
                sw.Flush();
            }
        }

        static public Test Load()
        {
            Test obj = null;
            using (StreamReader sr = new StreamReader("TestSerialized.xml"))
            {
                XmlSerializer xs = new XmlSerializer(typeof(Test));
                if (!xs.CanDeserialize(XmlReader.Create(sr)))
                    throw new NotSupportedException(string.Format("The file <{0}> cannot be loaded.", "TestSerialized.xml"));
                obj = (Test)xs.Deserialize(sr);
            }
            return (obj);
        }
    }
}

这是一个基本表单，有 2 个文本框，一个用于 Test 类的每个属性和 2 个按钮，一个用于保存，另一个用于加载。

别担心，我确保有一个文件要加载；)

我想制作一个通用的(反)serliazer 类，例如:

public class Serializer<T>
{
    static public void Serialize(object obj, string path)
    {
        using (StreamWriter sw = new StreamWriter(path))
        {
            XmlSerializer xs = new XmlSerializer(typeof(T));
            xs.Serialize(sw, obj);
            sw.Flush();
        }
    }

    static public T Dezerialize(string path)
    {
        T obj;
        using (StreamReader sr = new StreamReader(path))
        {
            XmlSerializer xs = new XmlSerializer(typeof(T));
            if (!xs.CanDeserialize(XmlReader.Create(sr)))
                throw new NotSupportedException(string.Format("The file <{0}> cannot be loaded.", path));
            obj = (T)xs.Deserialize(sr);
        }
        return (obj);
    }
}

但我有同样的问题:反序列化不起作用...

编辑:我捕获了一个异常:“它在 XML 文档 (0, 0) 中存在错误”以及我要反序列化的 XML 文档(它由 XmlSerializer 生成)

<?xml version="1.0" encoding="utf-8"?>
<Test xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <MyStr>toto</MyStr>
  <MyInt>45</MyInt>
</Test>

感谢您的帮助!

Answer 1

去掉那两条线

if (!xs.CanDeserialize(XmlReader.Create(sr))
    throw new NotSupportedException(string.Format("The file <{0}> cannot be loaded.", path));

或在检查是否可以反序列化后重置流