IEntity的序列化支持范例

【IT168技术文档】

  在列举示例代码之前，先列举在最新的版本中新增的一个类SerializeHelper.cs的代码，该类封装简化了常用的序列化方法，并且将在示例中被反复调用。

  SerializeHelper.cs

 1using System;
2using System.Collections;
3using System.IO;
4using System.Text;
5using System.Collections.Generic;
6using System.Xml;
7using System.Xml.Serialization;
8using System.Runtime.Serialization;
9using System.Runtime.Serialization.Formatters.Soap;
10using System.Runtime.Serialization.Formatters.Binary;
11
12namespace Ilungasoft.Framework.Common
13{
14    public class SerializeHelper
15    {
16        private static string RemoveXmlHeader(string xml)
17        {
18            if (xml.StartsWith("<?"))
19            {
20                return xml.Substring(xml.IndexOf("?>") + 2);
21            }
22            else
23            {
24                return xml;
25            }
26        }
27
28        public static string Serialize(object obj)
29        {
30            if (obj == null)
31            {
32                return string.Empty;
33            }
34
35            XmlSerializer s = new XmlSerializer(obj.GetType());
36            StringBuilder sb = new StringBuilder();
37            s.Serialize(new StringWriter(sb), obj);
38            return RemoveXmlHeader(sb.ToString());
39        }
40
41        public static void Serialize(Stream stream, object obj)
42        {
43            if (obj == null)
44            {
45                return;
46            }
47
48            XmlSerializer s = new XmlSerializer(obj.GetType());
49            s.Serialize(stream, obj);
50        }
51
52        public static string SerializeArray(object[] objs)
53        {
54            if (objs != null && objs.Length > 0)
55            {
56                XmlSerializer s = new XmlSerializer(objs[0].GetType().MakeArrayType());
57                StringBuilder sb = new StringBuilder();
58                s.Serialize(new StringWriter(sb), objs);
59                return RemoveXmlHeader(sb.ToString());
60            }
61            else
62            {
63                return string.Empty;
64            }
65        }
66
67        public static void SerializeArray(Stream stream, object[] objs)
68        {
69            if (objs != null && objs.Length > 0)
70            {
71                XmlSerializer s = new XmlSerializer(objs[0].GetType().MakeArrayType());
72                s.Serialize(stream, objs);
73            }
74            else
75            {
76                return;
77            }
78        }
79
80        public static ReturnType Deserialize<ReturnType>(Type originType, string xml)
81        {
82            XmlSerializer s = new XmlSerializer(originType);
83            return (ReturnType)s.Deserialize(new StringReader(xml));
84        }
85
86        public static string SoapSerialize(object obj)
87        {
88            SoapFormatter formatter = new SoapFormatter();
89            MemoryStream stream = new MemoryStream();
90            formatter.Serialize(stream, obj);
91            return System.Text.UTF8Encoding.UTF8.GetString(stream.ToArray());
92        }
93
94        public static void SoapSerialize(Stream stream, object obj)
95        {
96            SoapFormatter formatter = new SoapFormatter();
97            formatter.Serialize(stream, obj);
98        }
99
100        public static ReturnType SoapDeserialize<ReturnType>(string xml)
101        {
102            SoapFormatter formatter = new SoapFormatter();
103            MemoryStream stream = new MemoryStream(System.Text.UTF8Encoding.UTF8.GetBytes(xml));
104            return (ReturnType)formatter.Deserialize(stream);
105        }
106
107        public static ReturnType SoapDeserialize<ReturnType>(Stream stream)
108        {
109            SoapFormatter formatter = new SoapFormatter();
110            return (ReturnType)formatter.Deserialize(stream);
111        }
112
113        public static FieldType LoadField<FieldType>(string elementName, SerializationInfo info)
114            where FieldType : IEntity
115        {
116            string xml = info.GetString(elementName);
117            return xml == null ? default(FieldType) : (FieldType)SerializeHelper.Deserialize<FieldType>(EntityFactory<FieldType>.GetDynamicEntityType(), xml);
118        }
119
120        public static ItemType[] LoadArrayField<ItemType>(string elementName, SerializationInfo info)
121            where ItemType : IEntity
122        {
123            string xml = info.GetString(elementName);
124            return xml == null ? default(ItemType[]) : SerializeHelper.Deserialize<ItemType[]>(EntityFactory<ItemType>.GetDynamicEntityType().MakeArrayType(), xml);
125        }
126
127        public static void SaveField(string elementName, object value, SerializationInfo info)
128        {
129            if (value != null)
130            {
131                info.AddValue(elementName, SerializeHelper.Serialize(value));
132            }
133        }
134
135        public static void SaveArrayField(string elementName, object[] values, SerializationInfo info)
136        {
137            if (values != null)
138            {
139                info.AddValue(elementName, SerializeHelper.SerializeArray(values));
140            }
141        }
142    }
143}