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C# XML 数据管理与序列化反序列化实例

1. 简易版 XML 数据管理

public class XmlDataMgr{    private static XmlDataMgr instance = new XmlDataMgr();    public static XmlDataMgr Instance => instance;    private XmlDataMgr() { }    public void SaveData(object data, string fileName)    {        string path = Application.persistentDataPath + "/" + fileName + ".xml";        using (StreamWriter writer = new StreamWriter(path))        {            XmlSerializer s = new XmlSerializer(data.GetType());            s.Serialize(writer, data);        }    }    public object LoadData(Type type, string fileName)    {        string path = Application.persistentDataPath + "/" + fileName + ".xml";        if (!File.Exists(path))        {            path = Application.streamingAssetsPath + "/" + fileName + ".xml";            if (!File.Exists(path))            {                return Activator.CreateInstance(type);            }        }        using (StreamReader reader = new StreamReader(path))        {            XmlSerializer s = new XmlSerializer(type);            return s.Deserialize(reader);        }    }}

2. Dictionary 序列化与反序列化实现

public class SerializerDictionary
   
     : Dictionary
    
     , IXmlSerializable{    public XmlSchema GetSchema()    {        return null;    }    public void ReadXml(XmlReader reader)    {        XmlSerializer keySer = new XmlSerializer(typeof(TKey));        XmlSerializer valueSer = new XmlSerializer(typeof(TValue));        reader.Read();        while (reader.NodeType != XmlNodeType.EndElement)        {            TKey key = (TKey)keySer.Deserialize(reader);            TValue value = (TValue)valueSer.Deserialize(reader);            this.Add(key, value);        }        reader.Read();    }    public void WriteXml(XmlWriter writer)    {        XmlSerializer keySer = new XmlSerializer(typeof(TKey));        XmlSerializer valueSer = new XmlSerializer(typeof(TValue));        foreach (KeyValuePair
     
       item in this)        {            keySer.Serialize(writer, item.Key);            valueSer.Serialize(writer, item.Value);        }    }}
     
    
   

以上代码实现了一个用于 XML 数据管理的 XmlDataMgr 类，以及一个用于序列化与反序列化 Dictionary 的自定义实现 SerializerDictionary。通过 SaveData 和 LoadData 方法，可以将对象数据持久化到 XML 文件中，同时支持 Dictionary 对象的 XML 序列化和反序列化。