//webService using System; using System.Web; using System.Web.Services; using System.Web.Services.Protocols; using System.Xml; using System.Text; using System.IO; [WebService(Namespace = "webservice")] //(Namespace = "http://localhost/webserver/") [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] public class Service : System.Web.Services.WebService {     public Service () {         //如果使用设计的组件，请取消注释以下行         //InitializeComponent();      }      [WebMethod]     public string HelloWorld() {         return "Hello World";      }      [WebMethod]     public  string   show(string   yourname)     {         //return   "http://aaaaa"+"欢迎"+yourname;        //生成xml字符串：         using (StringWriter sw = new StringWriter())         {              XmlTextWriter xtw = new XmlTextWriter(sw);              xtw.Formatting = Formatting.Indented;              xtw.WriteStartDocument();              xtw.WriteStartElement("root");             //test              xtw.WriteStartElement("test");              xtw.WriteString("test content");              xtw.WriteEndElement();             //test2              xtw.WriteStartElement("test2");             //testSub              xtw.WriteStartElement("testSub");              xtw.WriteString("Sub content");              xtw.WriteEndElement();              xtw.WriteEndElement();                       xtw.WriteEndElement();//root              xtw.WriteEndDocument();                                    string result = sw.ToString();             return result.Replace("utf-8", "gb2312").Replace("utf-16", "gb2312");          }      }           [WebMethod]     public string parseXML()     {         /**/////解析xml：         string strInput = "<?xml version='1.0' encoding='utf-16'?><foo><bar /></foo>";          XmlTextReader r = new XmlTextReader(new StringReader(strInput));          MemoryStream ms = new MemoryStream();          XmlTextWriter w = new XmlTextWriter(ms, Encoding.UTF8);          w.WriteNode(r, false);          w.Flush();          ms.Position = 0;          StreamReader sr = new StreamReader(ms);         string strOutput = sr.ReadToEnd();         return strOutput.Replace("utf-8", "gb2312").Replace("utf-16", "gb2312");         //Console.WriteLine("Input = {0}, Output = {1}", strInput.Length, strOutput.Length);      }      }