XML的序列化与反序列化

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>

 

posted @ 2014-12-18 10:09  baby_cz  阅读(151)  评论(0)    收藏  举报