开发时会把数据持久化成xml格式，当然可以用xmlwriter来实现，不过感觉不方便，而且很繁琐。推荐使用直接序列化、反序列化对象的方法来处理。
直接上代码：
1 public static class Utility 2 { 3 public static T Deserialize<T>(string path) 4 { 5 try 6 { 7 using (var fs = new StreamReader(path)) 8 { 9 XmlSerializer serializer = new XmlSerializer(typeof(T)); 10 var result = (T)serializer.Deserialize(fs); 11 return result; 12 } 13 } 14 catch (Exception) 15 { } 16 return default(T); 17 } 18 19 public static void Serialize<T>(T serializableObject, string path) 20 { 21 try 22 { 23 using (var sw = new StringWriter()) 24 { 25 XmlSerializer serializer = new XmlSerializer(typeof(T)); 26 serializer.Serialize(sw, serializableObject); 27 28 File.WriteAllText(path, sw.GetStringBuilder().ToString()); 29 } 30 } 31 catch (Exception) 32 { } 33 } 34 }
对应的对象：（两种）
1 [XmlRoot("root")] 2 public class SavedMessage 3 { 4 public int UserId { get; set; } 5 [XmlArray("messages")] 6 [XmlArrayItem("message", Type = typeof(string))] 7 public List<string> Messages { get; set; } 8 } 9 10 [XmlRoot("root")] 11 public class SavedUser 12 { 13 [XmlArray("users")] 14 [XmlArrayItem("user", Type = typeof(User))] 15 public List<User> Users { get; set; } 16 }
使用方法：
1 // save to file
2 Utility.Serialize<SavedMessage>(savedMessage, "Message.xml");
3
4 // read from file
5 var messageModel = Utility.Deserialize<SavedMessage>("Message.xml");
生成的文件格式：（xml里的结点是和对象上的xml属性一致的）
1 // users 2 <?xml version="1.0" encoding="utf-16"?> 3 <root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 4 <users> 5 <user> 6 <Id>1</Id> 7 <Name>John</Name> 8 </user> 9 <user> 10 <Id>2</Id> 11 <Name>Mary</Name> 12 </user> 13 </users> 14 </root> 15 16 17 // message 18 <?xml version="1.0" encoding="utf-16"?> 19 <root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 20 <UserId>1</UserId> 21 <messages> 22 <message>aaa</message> 23 <message>bbb</message> 24 <message>ccc</message> 25 </messages> 26 </root>