asp.net实现输出xml的方法


            本文实例讲述了asp.net实现输出xml的方法。分享给大家供大家参考，具体如下：





#region 根据xml节点 查询xml节点的值并作修改

/// <summary>

/// 根据xml节点 查询xml节点的值并作修改

/// </summary>

/// <param name="fileName">要加载的xml文件</param>

/// <param name="tagName">xml节点的名称</param>

/// <param name="newXmlText">修改后的值</param>

/// <returns></returns>

public void GetXmlbySelNodel(string fileName, string selNodeName, string tagName,string newXmlText)

{

  try

  {

   doc.Load(Server.MapPath(fileName));

   XmlNodeList nodelist = doc.DocumentElement.SelectSingleNode(selNodeName).ChildNodes;

   foreach (XmlNode node in nodelist)

   {

    XmlElement xle = node as XmlElement;

    XmlNodeList list = xle.ChildNodes;

    for (int j = 0; j < list.Count; j++) {

     if (xle.ChildNodes[j].Name == tagName) {

      xle.ChildNodes[j].InnerText = newXmlText;

      SaveXml(fileName);

      break;

     }

    }

   }

  }

  catch { 

  }

}

#endregion

#region 保存修改后xml文件内容

//保存修改后xml文件内容

public void SaveXml(string fileName)

{

  doc.Save(Server.MapPath(fileName));

}

#endregion

string selNodeName="//url/data";

string fileName = "meituanAPI.xml";

GetXmlbySelNodel(fileName, selNodeName, "website", "中文源码网");

GetXmlbySelNodel(fileName, selNodeName, "siteurl", "www.zwyuanma.com");

GetXmlbySelNodel(fileName, selNodeName, "city", "杭州");

GetXmlbySelNodel(fileName, selNodeName, "tip", "送ipad 抽奖!!");

GetXmlbySelNodel(fileName, "//data/shops", "name", "上海洲信 信息技术有限公司!");

DataSet ds = new DataSet();

ds.ReadXml(Server.MapPath("meituanAPI.xml"));

XmlTextWriter writer = new XmlTextWriter(Response.OutputStream, Response.ContentEncoding);

ds.Tables[0].WriteXml(writer);

Response.ContentType = "text/xml;charset=gb2312";

Response.Flush();

Response.End()







或者





Response.ClearContent();

Response.ClearHeaders();

Response.contentType="application/xml"';

Response.WriterFile(Server.Mappath("API/54tuanAPI.xml"));

Response.Flush();

Response.End();







希望本文所述对大家asp.net程序设计有所帮助。