using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml;
namespace XML1
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//使用XlmReader读books.xml中有几本书
XmlReaderSettings settings=new XmlReaderSettings();
settings.IgnoreComments=true;
settings.IgnoreWhitespace=true;
int booknum = 0;
using (XmlReader reader = XmlReader.Create(Server.MapPath("books.xml"), settings))
{
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element)
{
if (reader.LocalName == "book")
{
booknum++;
}
}
}
}
Response.Write("一共找到了" + booknum + "本书！");
}
//使用XlmWriter写NewBooks.xml文件。
protected void Button1_Click(object sender, EventArgs e)
{
XmlWriterSettings settings=new XmlWriterSettings();
settings.Encoding=System.Text.Encoding.UTF8;//输入的编码
settings.Indent=true;
using (XmlWriter write = XmlWriter.Create(Server.MapPath("newbook.xml"), settings))
{
write.WriteStartDocument();//开始写
write.WriteStartElement("books");
write.WriteStartElement("book");//book节点开始
write.WriteStartAttribute("id");//给book添加属性
write.WriteValue("1");//设置属性id的值为1
write.WriteEndAttribute();//结束属性
write.WriteStartElement("author");//author节点
write.WriteString("张闻正");//author节点中的内容
write.WriteEndElement();//结束author节点
write.WriteEndElement();//结束book节点
//再添一本书
write.WriteStartElement("book");//book开始
write.WriteStartElement("author");//author节点
write.WriteString("清华大学出版社");//author节点中的内容
write.WriteEndElement();//结束author节点
write.WriteEndElement();//结束book节点
write.WriteEndElement();
}
this.Response.Write("ok");
}
}
}
使用XlmWrite把一个xml文件写入输出流中。在（demo2.aspx运行时显示xml文档）
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml;
namespace XML1
{
public partial class WebForm2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
XmlWriterSettings settings = new XmlWriterSettings();
settings.Encoding = System.Text.Encoding.UTF8;//输入的编码
settings.Indent = true;
using (XmlWriter write = XmlWriter.Create(this.Response.Output, settings))
{
write.WriteStartDocument();//开始写
write.WriteStartElement("books");
write.WriteStartElement("book");//book节点开始
write.WriteStartAttribute("id");//给book添加属性
write.WriteValue("1");//设置属性id的值为1
write.WriteEndAttribute();//结束属性
write.WriteStartElement("author");//author节点
write.WriteString("张闻正");//author节点中的内容
write.WriteEndElement();//结束author节点
write.WriteEndElement();//结束book节点
//再添一本书
write.WriteStartElement("book");//book开始
write.WriteStartElement("author");//author节点
write.WriteString("清华大学出版社");//author节点中的内容
write.WriteEndElement();//结束author节点
write.WriteEndElement();//结束book节点
write.WriteEndElement();
}
}
}
}