asp.net使用DataSet的ReadXml读取XML文件及Stream流的方法-巨人网络通讯

asp.net使用DataSet的ReadXml读取XML文件及Stream流的方法

本文实例讲述了asp.net使用DataSet的ReadXml读取XML文件及Stream流的方法。分享给大家供大家参考，具体如下：

string strxml = "xml>m>a>1/a>b>2/b>/m>m>a>11/a>b>22/b>/m>m>a>111/a>b>222/b>/m>/xml>";
DataSet ds = new DataSet();
Stream stream = new MemoryStream(Encoding.Default.GetBytes(strxml));
ds.ReadXml(stream);
GridView1.DataSource = ds;
GridView1.DataBind();

protected void Page_Load(object sender, EventArgs e)
{
  if (!IsPostBack)
  {
    DataSet ds = new DataSet();
    TextReader reader = new StringReader(@"
          music>
           song>
            artist>The Chi-lites/artist>
            genre>Soul/genre>
            album>A lonely man/album>
            year>1972/year>
           /song>
           song>
            artist>Babyface/artist>
            genre>RB/genre>
            album>unknown/album>
            year>/year>
           /song>
           song>
            artist>Babyface/artist>
            genre>RB/genre>
            album>The essential babyface/album>
            year>2001/year>
           /song>
           song>
            artist>Babyface/artist>
            genre>RB/genre>
            album>Grown and sexy/album>
            year>2005/year>
           /song>
           song>
            artist>Maria Arredondo/artist>
            genre>Pop/genre>
            album>Not going under/album>
            year>2004/year>
           /song>
           song>
            artist>Leona Lewis/artist>
            genre>Pop/genre>
            album>Unknown/album>
            year>2008/year>
           /song>
           song>
            artist>Usher/artist>
            genre>RB/genre>
            album>Usher/album>
            year>2008/year>
           /song>
           song>
            artist>Christina Aguilera/artist>
            genre>Blues/genre>
            album>Back to basics/album>
            year>2004/year>
           /song>
           song>
            artist>Sting/artist>
            genre>Pop/genre>
            album>Shape of my heart/album>
            year>/year>
           /song>
          /music>
          ");
    //读取Xml字符串 用来接收WebService返回数据
    ds.ReadXml(reader, XmlReadMode.Auto);
    //生成Xml文件
    //ds.WriteXml(Server.MapPath("xml/song_bak.xml"));
    GridView1.DataSource = ds;
    GridView1.DataBind();
  }
}

#region 接口返回的Xml转换成DataSet
/// summary>
/// 返回的Xml转换成DataSet
/// /summary>
/// param name="text">Xml字符/param>
/// returns>/returns>
private DataSet GetDataSet(string text)
{
  try
  {
    XmlTextReader reader = new XmlTextReader(new StringReader(text));
    reader.WhitespaceHandling = WhitespaceHandling.None;
    DataSet ds = new DataSet();
    ds.ReadXml(reader);
    reader.Close();
    ds.Dispose();
    return ds;
  }
  catch
  {
    return null;
  }
}
#endregion
#region 后台提交数据且获取接口返回的数据
/// summary>
/// 后台提交数据且获取接口返回的数据
/// /summary>
/// param name="relativePath">地址/param>
/// returns>/returns>
public static string GetRequestString(string relativePath)
{
  string requestUrl = relativePath;
  try
  {
    // 创建一个HTTP请求
    HttpWebRequest request = (System.Net.HttpWebRequest)WebRequest.Create(requestUrl);
    request.Method = "GET";
    StreamReader jsonStream = new StreamReader(request.GetResponse().GetResponseStream());
    string jsonObject = jsonStream.ReadToEnd();
    return jsonObject;
  }
  catch
  {
    return string.Empty;
  }
}
#endregion

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