.NET中 dataset用ReadXml方法连续读取多个xml文件时，会将这多个文件读入到一个datatable中？

发布网友 发布时间：2022-04-27 10:03

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懂视网 时间：2022-04-27 14:24

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>R&B</genre>
  <album>unknown</album>
  <year></year>
  </song>
  <song>
  <artist>Babyface</artist>
  <genre>R&B</genre>
  <album>The essential babyface</album>
  <year>2001</year>
  </song>
  <song>
  <artist>Babyface</artist>
  <genre>R&B</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>R&B</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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热心网友 时间：2022-04-27 11:32