c#大圣之路笔记——c# 我们需要在XML与实体类，DataTable，List之间进行转换，下面是XmlUtil类，该类来自网络并稍加修改。 





  1   1   
  2   2 using System;
  3   3 using System.Collections.Generic;
  4   4 using System.Linq;
  5   5 using System.Text;
  6   6 using System.IO;
  7   7 using System.Data;
  8   8 using System.Xml;
  9   9 using System.Xml.Serialization;
 10  10  
 11  11 /// <summary>
 12  12 /// Xml序列化与反序列化
 13  13 /// </summary>
 14  14 public class XmlUtil
 15  15 {
 16  16     #region 反序列化
 17  17     /// <summary>
 18  18     /// 反序列化
 19  19     /// </summary>
 20  20     /// <param name="type">类型</param>
 21  21     /// <param name="xml">XML字符串</param>
 22  22     /// <returns></returns>
 23  23     public static object Deserialize(Type type, string xml)
 24  24     {
 25  25         try
 26  26         {
 27  27             using (StringReader sr = new StringReader(xml))
 28  28             {
 29  29                 XmlSerializer xmldes = new XmlSerializer(type);
 30  30                 return xmldes.Deserialize(sr);
 31  31             }
 32  32         }
 33  33         catch (Exception e)
 34  34         {
 35  35  
 36  36             return null;
 37  37         }
 38  38     }
 39  39     /// <summary>
 40  40     /// 反序列化
 41  41     /// </summary>
 42  42     /// <param name="type"></param>
 43  43     /// <param name="xml"></param>
 44  44     /// <returns></returns>
 45  45     public static object Deserialize(Type type, Stream stream)
 46  46     {
 47  47         XmlSerializer xmldes = new XmlSerializer(type);
 48  48         return xmldes.Deserialize(stream);
 49  49     }
 50  50     #endregion
 51  51  
 52  52     #region 序列化
 53  53     /// <summary>
 54  54     /// 序列化
 55  55     /// </summary>
 56  56     /// <param name="type">类型</param>
 57  57     /// <param name="obj">对象</param>
 58  58     /// <returns></returns>
 59  59     public static string Serializer(Type type, object obj)
 60  60     {
 61  61         MemoryStream Stream = new MemoryStream();
 62  62         XmlSerializer xml = new XmlSerializer(type);
 63  63         try
 64  64         {
 65  65             //序列化对象
 66  66             xml.Serialize(Stream, obj);
 67  67         }
 68  68         catch (InvalidOperationException)
 69  69         {
 70  70             throw;
 71  71         }
 72  72         Stream.Position = 0;
 73  73         StreamReader sr = new StreamReader(Stream);
 74  74         string str = sr.ReadToEnd();
 75  75          
 76  76         sr.Dispose();
 77  77         Stream.Dispose();
 78  78  
 79  79         return str;
 80  80     }
 81  81  
 82  82     #endregion
 83  83 }
 84  84 下面是测试代码：
 85  85  
 86  86 1. 实体对象转换到Xml
 87  87 
 88  97 public class Student
 89  98 {
 90  99     public string Name { set; get; }
 91 100     public int Age { set; get; }
 92 101 }
 93 102  
 94 103 Student stu1 = new Student() { Name = "okbase", Age = 10 };
 95 104 string xml = XmlUtil.Serializer(typeof(Student), stu1);
 96 105 Console.Write(xml);
 97 106 2. Xml转换到实体对象
 98 107   
 99 110 Student stu2 = XmlUtil.Deserialize(typeof(Student), xml) as Student;
100 111 Console.Write(string.Format("名字:{0},年龄:{1}", stu2.Name, stu2.Age));
101 112 3. DataTable转换到Xml
102 113  
103 114 
104 132 // 生成DataTable对象用于测试
105 133 DataTable dt1 = new DataTable("mytable");   // 必须指明DataTable名称
106 134  
107 135 dt1.Columns.Add("Dosage", typeof(int));
108 136 dt1.Columns.Add("Drug", typeof(string));
109 137 dt1.Columns.Add("Patient", typeof(string));
110 138 dt1.Columns.Add("Date", typeof(DateTime));
111 139  
112 140 // 添加行
113 141 dt1.Rows.Add(25, "Indocin", "David", DateTime.Now);
114 142 dt1.Rows.Add(50, "Enebrel", "Sam", DateTime.Now);
115 143 dt1.Rows.Add(10, "Hydralazine", "Christoff", DateTime.Now);
116 144 dt1.Rows.Add(21, "Combivent", "Janet", DateTime.Now);
117 145 dt1.Rows.Add(100, "Dilantin", "Melanie", DateTime.Now);
118 146  
119 147 // 序列化
120 148 xml = XmlUtil.Serializer(typeof(DataTable), dt1);
121 149 Console.Write(xml);
122 150 4. Xml转换到DataTable
123 1 
124 165 // 反序列化
125 166 DataTable dt2 = XmlUtil.Deserialize(typeof(DataTable), xml) as DataTable;
126 167  
127 168 // 输出测试结果
128 169 foreach (DataRow dr in dt2.Rows)
129 170 {
130 171     foreach (DataColumn col in dt2.Columns)
131 172     {
132 173         Console.Write(dr[col].ToString() + " ");
133 174     }
134 175  
135 176     Console.Write("\r\n");
136 177 }
137 178 5. List转换到Xml
138 179  
139  
140 188 // 生成List对象用于测试
141 189 List<Student> list1 = new List<Student>(3);
142 190  
143 191 list1.Add(new Student() { Name = "okbase", Age = 10 });
144 192 list1.Add(new Student() { Name = "csdn", Age = 15 });
145 193 // 序列化
146 194 xml = XmlUtil.Serializer(typeof(List<Student>), list1);
147 195 Console.Write(xml);
148 196 6. Xml转换到List
149 19 
150 203 List<Student> list2 = XmlUtil.Deserialize(typeof(List<Student>), xml) as List<Student>;
151 204 foreach (Student stu in list2)
152 205 {
153 206     Console.WriteLine(stu.Name + "," + stu.Age.ToString());
154 207 }
155 208 从代码可以看到，千变万化不离其宗!






 










            

            
posted @ 
2016-09-20 13:57 
王小二不在家 
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