hellomore.asmx

asp.net经典案例资料

<%@ WebService Language="C#" Class="HelloMore" %>

using System.Data;
using System.Xml;
using System.IO;
using System.Web.Services;

[WebService(Namespace="http://www.nobody.com")]
public class HelloMore : WebService
{
  [WebMethod]
  public string SayHelloMore(string guest)
  {
    DataSet dataSet = new DataSet();
    DataTable dataTable = new DataTable();
    dataTable.Columns.Add(new DataColumn("name", typeof(string)));
    dataTable.Columns.Add(new DataColumn("addr", typeof(string)));
    dataSet.Tables.Add(dataTable);
    if(File.Exists(Server.MapPath("guestbook.xml")))
      dataSet.ReadXml(Server.MapPath("guestbook.xml"), XmlReadMode.IgnoreSchema);

    DataRow row = dataTable.NewRow();
    row["name"] = guest;
    row["addr"] = Context.Request.UserHostAddress;
    dataTable.Rows.Add(row);
    dataSet.AcceptChanges();
    dataSet.WriteXml(Server.MapPath("guestbook.xml"), XmlWriteMode.WriteSchema);

    return "Say Hello to " + guest + " from WebService.";
  }
}