XML 导入导出数据库

XML导入数据库：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Xml;
using System.IO;
using System.Xml.Linq;

public partial class _Default : System.Web.UI.Page
{
string sqlstr=ConfigurationManager.ConnectionStrings["sqlstr"].ConnectionString;
protected void Page_Load(object sender, EventArgs e)
{

}
protected void btnDaoru_Click(object sender, EventArgs e)
{

Stream stream = File.OpenRead(Server.MapPath("book.xml"));
XDocument document = XDocument.Load(stream);
stream.Dispose();
foreach (XElement element in document.Root.Descendants("book"))
{
string title = element.Element("title").Value;
string author = element.Element("author").Value;
string gender = element.Element("author").Attribute("gender").Value;
string age = element.Element("author").Attribute("age").Value;
string year = element.Element("year").Value;
string price = element.Element("price").Value;
using (SqlConnection sqlcnn = new SqlConnection(sqlstr))
{
using (SqlCommand sqlcmm = sqlcnn.CreateCommand())
{
sqlcmm.CommandText = "insert into book values(@title,@author,@gender,@age,@year,@price)";
sqlcnn.Open();
sqlcmm.Parameters.AddWithValue("@title", title);
sqlcmm.Parameters.AddWithValue("@author", author);
sqlcmm.Parameters.AddWithValue("@gender", gender);
sqlcmm.Parameters.AddWithValue("@age", age);
sqlcmm.Parameters.AddWithValue("@year", year);
sqlcmm.Parameters.AddWithValue("@price", price);
int a = sqlcmm.ExecuteNonQuery();

}
}
}
}
}

XML导出数据库：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Xml.Linq;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;

public partial class DaochuXml : System.Web.UI.Page
{
string sqlstr=ConfigurationManager.ConnectionStrings["sqlstr"].ConnectionString;
protected void Page_Load(object sender, EventArgs e)
{

}
protected void btnDaochu_Click(object sender, EventArgs e)
{
using (SqlConnection sqlcnn=new SqlConnection(sqlstr))
{
using (SqlCommand sqlcmm=sqlcnn.CreateCommand())
{
sqlcmm.CommandText = "select * from book";
SqlDataAdapter adapt = new SqlDataAdapter(sqlcmm);
DataTable dt = new DataTable();
adapt.Fill(dt);
XElement xmlbookstore = new XElement("bookstore");
for (int i = 0; i < dt.Rows.Count; i++)
{
XElement book = new XElement("book");
XElement title = new XElement("title",dt.Rows[i][0]);
XElement author = new XElement("author", dt.Rows[i][1]);
author.SetAttributeValue("age", dt.Rows[i][2]);
author.SetAttributeValue("sex", dt.Rows[i][3]);
XElement year = new XElement("year", dt.Rows[i][4]);
XElement price = new XElement("price", dt.Rows[i][5]);
book.Add(title);
book.Add(author);
book.Add(year);
book.Add(price);
xmlbookstore.Add(book);
}

FileStream stream =File.OpenWrite(@"c:\book.xml");
StreamWriter writer = new StreamWriter(stream);
writer.WriteLine(xmlbookstore.ToString());
writer.Flush();
stream.Dispose();

}
}
}
}