使用XmlWriter创建XML文件

  1 using System;
  2 
  3 using System.Collections.Generic;
  4 
  5 using System.Text;
  6 
  7 using System.IO;
  8 
  9 using System.Xml;
 10 
 11  
 12 
 13 namespace UseXmlWriter
 14 
 15 {
 16 
 17     class Program
 18 
 19     {
 20 
 21         static void Main(string[] args)
 22 
 23         {
 24 
 25             using (MemoryStream ms = new MemoryStream())
 26 
 27             {
 28 
 29                 XmlWriterSettings settings = new XmlWriterSettings();
 30 
 31                 //要求缩进
 32 
 33                 settings.Indent = true;
 34 
 35                 //注意如果不设置encoding默认将输出utf-16
 36 
 37                 //注意这儿不能直接用Encoding.UTF8如果用Encoding.UTF8将在输出文本的最前面添加4个字节的非xml内容
 38 
 39                 settings.Encoding = new UTF8Encoding(false);
 40 
 41                  
 42 
 43                 //设置换行符
 44 
 45                 settings.NewLineChars = Environment.NewLine;
 46 
 47  
 48 
 49                 using (XmlWriter xmlWriter = XmlWriter.Create(ms, settings))
 50 
 51                 {
 52 
 53  
 54 
 55                     //写xml文件开始<?xml version="1.0" encoding="utf-8" ?>
 56 
 57                     xmlWriter.WriteStartDocument(false);
 58 
 59                     //写根节点
 60 
 61                     xmlWriter.WriteStartElement("root");
 62 
 63                     //写字节点
 64 
 65                     xmlWriter.WriteStartElement("cat");
 66 
 67                     //给节点添加属性
 68 
 69                     xmlWriter.WriteAttributeString("color", "white");
 70 
 71                     //给节点内部添加文本
 72 
 73                     xmlWriter.WriteString("I'm a cat");
 74 
 75                     xmlWriter.WriteEndElement();
 76 
 77  
 78 
 79  
 80 
 81                     //通过WriteElementString可以添加一个节点同时添加节点内容
 82 
 83                     xmlWriter.WriteElementString("pig", "pig is great");
 84 
 85  
 86 
 87  
 88 
 89                     xmlWriter.WriteStartElement("dog");
 90 
 91                     //写CData
 92 
 93                     xmlWriter.WriteCData("<strong>dog is dog</strong>");
 94 
 95                     xmlWriter.WriteEndElement();
 96 
 97      
 98                     //添加注释
 99                     xmlWriter.WriteComment("this is an example writed");
100 
101  
102 
103                     xmlWriter.WriteEndElement();
104 
105                     xmlWriter.WriteEndDocument();
106 
107  
108 
109                 }
110 
111  
112 
113                 //将xml内容输出到控制台中
114 
115                 string xml = Encoding.UTF8.GetString(ms.ToArray());
116 
117                 Console.WriteLine(xml);
118 
119             }
120 
121             Console.Read();
122 
123  
124 
125         }
126 
127     }
128 
129 }