.net创建XML文件的两种方法[转载]
方法一：按照XML的结构一步一步的构建XML文档.
通过.Net FrameWork SDK中的命名空间"System.Xml"中封装的各种类来实现的
方法二：直接定影XML文档，然后保存到文件。
通过"XmlDocument"类中的"LoadXml"方法
.aspx前台代码:
<
%@ Page
Language
="C#"
AutoEventWireup
="true"
CodeFile
="Default4.aspx.cs"
Inherits
="Default4" %
>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
< html xmlns ="http://www.w3.org/1999/xhtml" >
< head runat ="server" >
< title > </title>
</head>
< body >
< form id ="form1" runat ="server" >
< div >
< asp:Button ID ="btn" runat ="server" OnClick ="btn1_OnClick" Text ="创建xml的第一种方法" /> < br />
< asp:Button ID ="btn2" runat ="server" OnClick ="btn2_OnClick" Text ="创建xml的第二种方法" />
</div>
</form>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
< html xmlns ="http://www.w3.org/1999/xhtml" >
< head runat ="server" >
< title > </title>
</head>
< body >
< form id ="form1" runat ="server" >
< div >
< asp:Button ID ="btn" runat ="server" OnClick ="btn1_OnClick" Text ="创建xml的第一种方法" /> < br />
< asp:Button ID ="btn2" runat ="server" OnClick ="btn2_OnClick" Text ="创建xml的第二种方法" />
</div>
</form>
</body>
</html>
.cs后台代码实现如下:
using
System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text;
using System.Xml;
public partial class Default4 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
//创建xml文件方法一
protected void btn1_OnClick(object sender, EventArgs e)
{
XmlText xmltext;
XmlDocument xmldoc = new XmlDocument();
//加入XML的声明段落
XmlNode xmlnode = xmldoc.CreateXmlDeclaration("1.0", "gb2312", null);
xmldoc.AppendChild(xmlnode);
//加入一个根元素
XmlElement xmlelem = xmldoc.CreateElement("", "bookstore", "");
xmltext = xmldoc.CreateTextNode("");
xmlelem.AppendChild(xmltext);
xmldoc.AppendChild(xmlelem);
//加入一个子元素
XmlElement xmlelem1 = xmldoc.CreateElement("", "book", "");
xmltext = xmldoc.CreateTextNode("");
xmlelem1.AppendChild(xmltext);
//为子元素"book"增加两个属性
xmlelem1.SetAttribute("genre", "", "fantasy");
xmlelem1.SetAttribute("ISBN", "2-3631-4");
xmldoc.ChildNodes.Item(1).AppendChild(xmlelem1);
//创建三个子元素的子元素
XmlElement xmlelem2 = xmldoc.CreateElement("", "title", "");
xmltext = xmldoc.CreateTextNode("Oberon's Legacy");
xmlelem2.AppendChild(xmltext);
xmldoc.ChildNodes.Item(1).AppendChild(xmlelem1).AppendChild(xmlelem2);
XmlElement xmlelem3 = xmldoc.CreateElement("", "author", "");
xmltext = xmldoc.CreateTextNode("Corets, Eva");
xmlelem3.AppendChild(xmltext);
xmldoc.ChildNodes.Item(1).AppendChild(xmlelem1).AppendChild(xmlelem3);
XmlElement xmlelem4 = xmldoc.CreateElement("", "price", "");
xmltext = xmldoc.CreateTextNode("5.95");
xmlelem4.AppendChild(xmltext);
xmldoc.ChildNodes.Item(1).AppendChild(xmlelem1).AppendChild(xmlelem4);
xmldoc.Save(Server.MapPath("bookstore.xml")); //保存
}
//创建xml文件方法二
protected void btn2_OnClick(object sender, EventArgs e)
{
XmlDocument xmldoc = new XmlDocument(); //创建空的XML文档
xmldoc.LoadXml("<?xml version='1.0' encoding='gb2312'?>" +
"<bookstore>" +
"<book genre='fantasy' ISBN='2-3631-4'>" +
"<title>Oberon's Legacy</title>" +
"<author>Corets, Eva</author>" +
"<price>5.95</price>" +
"</book>" +
"</bookstore>");
xmldoc.Save(Server.MapPath("bookstore2.xml")); //保存
}
}
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text;
using System.Xml;
public partial class Default4 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
//创建xml文件方法一
protected void btn1_OnClick(object sender, EventArgs e)
{
XmlText xmltext;
XmlDocument xmldoc = new XmlDocument();
//加入XML的声明段落
XmlNode xmlnode = xmldoc.CreateXmlDeclaration("1.0", "gb2312", null);
xmldoc.AppendChild(xmlnode);
//加入一个根元素
XmlElement xmlelem = xmldoc.CreateElement("", "bookstore", "");
xmltext = xmldoc.CreateTextNode("");
xmlelem.AppendChild(xmltext);
xmldoc.AppendChild(xmlelem);
//加入一个子元素
XmlElement xmlelem1 = xmldoc.CreateElement("", "book", "");
xmltext = xmldoc.CreateTextNode("");
xmlelem1.AppendChild(xmltext);
//为子元素"book"增加两个属性
xmlelem1.SetAttribute("genre", "", "fantasy");
xmlelem1.SetAttribute("ISBN", "2-3631-4");
xmldoc.ChildNodes.Item(1).AppendChild(xmlelem1);
//创建三个子元素的子元素
XmlElement xmlelem2 = xmldoc.CreateElement("", "title", "");
xmltext = xmldoc.CreateTextNode("Oberon's Legacy");
xmlelem2.AppendChild(xmltext);
xmldoc.ChildNodes.Item(1).AppendChild(xmlelem1).AppendChild(xmlelem2);
XmlElement xmlelem3 = xmldoc.CreateElement("", "author", "");
xmltext = xmldoc.CreateTextNode("Corets, Eva");
xmlelem3.AppendChild(xmltext);
xmldoc.ChildNodes.Item(1).AppendChild(xmlelem1).AppendChild(xmlelem3);
XmlElement xmlelem4 = xmldoc.CreateElement("", "price", "");
xmltext = xmldoc.CreateTextNode("5.95");
xmlelem4.AppendChild(xmltext);
xmldoc.ChildNodes.Item(1).AppendChild(xmlelem1).AppendChild(xmlelem4);
xmldoc.Save(Server.MapPath("bookstore.xml")); //保存
}
//创建xml文件方法二
protected void btn2_OnClick(object sender, EventArgs e)
{
XmlDocument xmldoc = new XmlDocument(); //创建空的XML文档
xmldoc.LoadXml("<?xml version='1.0' encoding='gb2312'?>" +
"<bookstore>" +
"<book genre='fantasy' ISBN='2-3631-4'>" +
"<title>Oberon's Legacy</title>" +
"<author>Corets, Eva</author>" +
"<price>5.95</price>" +
"</book>" +
"</bookstore>");
xmldoc.Save(Server.MapPath("bookstore2.xml")); //保存
}
}
比较：第一种创建起来更加灵活，而第二种创建起来更加方便。最终创建的xml文件如下:(两种方法创建效果都是一样的)
<?
xml
version
="1.0"
encoding
="gb2312"
?>
< bookstore >
< book genre ="fantasy" ISBN ="2-3631-4" >
< title >Oberon's Legacy </ title >
< author >Corets, Eva </ author >
< price >5.95 </ price >
</ book >
</ bookstore >
< bookstore >
< book genre ="fantasy" ISBN ="2-3631-4" >
< title >Oberon's Legacy </ title >
< author >Corets, Eva </ author >
< price >5.95 </ price >
</ book >
</ bookstore >