代码如下，直接本地测试就出现错误。.net3.5的环境
- C# code
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Xml;using System.IO;public partial class _Default : System.Web.UI.Page { private string file; protected void Page_Load(object sender, EventArgs e) { file = Path.Combine(Request.PhysicalPath, @"App_Data\SuperProductiList.xml"); } protected void Button1_Click(object sender, EventArgs e) { FileStream fs = new FileStream(file, FileMode.Create); XmlTextWriter w = new XmlTextWriter(fs, null); w.WriteStartDocument(); w.WriteStartElement("Super"); w.WriteComment("This file generated by the XmlTextWriter class."); w.WriteStartElement("Product"); w.WriteAttributeString("ID", "1"); w.WriteAttributeString("Name", "Chair"); w.WriteStartElement("price"); w.WriteString("49.5"); w.WriteEndElement(); w.WriteEndElement(); w.WriteEndElement(); w.WriteEndDocument(); w.Close(); }}------解决方案--------------------------------------------------------
你看看
Request.PhysicalPath, @"App_Data\SuperProductiList.xml")
出来的路径是什么吧
是不存在的，。
直接
file = Server.MapPath("~/App_Data/SuperProductiList.xml");
SuperProductiList.xml放在根目录的app_Data下面
------解决方案--------------------------------------------------------
file = Path.Combine(Request.PhysicalPath, @"App_Data\SuperProductiList.xml");
Request.PhysicalPath
换成：
AppDomain.CurrentDomain.BaseDirectory
file = AppDomain.CurrentDomain.BaseDirectory + @"App_Data\SuperProductiList.xml";