性能提高
壓縮傳輸數據, 減少多次調用, XML解析器的優化和選擇, 簡化標簽, 緩存機制
ref: http://www.ibm.com/developerworks/cn/webservices/0710_wangyun/index.html?S_TACT=105AGX52&S_CMP=NL&ca=dnl-cn-11212007

in class library project use??WebServiceHandlerFactory?to create Web service, http://www.codeproject.com/useritems/wsinaclasslibrary.asp
write a class WebServiceBase to implements webserviceHandlerFactory, then implement your web service inherit from this class, and copy this compoment into your web app bin directory, then add <add path="WSTest.asmx" verb="*" type="WSLibrary.WSTest" validate="false"/> into your web.config's httphandler section.

[WebMethod(EnableSession=true)]XXX 此聲明可以在WS中引用session對象, 某種程度上可以提高性能; 但需要客戶端在調用時支持,默認情況下browser中調用WS時要有SESSION的,而在普通的EXE或程序中調用WS時,需要顯示聲明要使用cookie,否則服務器端的session無效..net 中聲明如下:
WebService1 srv = new WebService1();
srv.CookieContainer = new CookieContainer();
只有經過這樣聲明,調用的WS才會傳遞SESSIONID,建立在一個應用中只有一個地方可獲取WS,即采用singleton模式,這樣所有地方調用WS時都有sessionID支持.

利用WS上傳文件,可以在CLIENT中將文件中的內容讀取到byte[]中,然后調用WS接口,然后WS再將byte寫入到文件中
轉換FileStream fileStream = File.OpenRead(path + fileName);為MemoryStream,再轉換為byte[].
public byte[] ConvertStreamToByteBuffer(System.IO.Stream theStream)
??????? {
??????????? int b1;
??????????? System.IO.MemoryStream tempStream = new System.IO.MemoryStream();
??????????? while ((b1 = theStream.ReadByte()) != -1)
??????????? {
??????????????? tempStream.WriteByte(((byte)b1));
??????????? }
??????????? return tempStream.ToArray();
??????? }
如果是將byte[]寫入到文件,則代碼如下:
{
??????????????? MemoryStream memoryStream = new MemoryStream(fs);
??????????????? FileStream fileStream = new FileStream(path + fileName, FileMode.Create);
??????????????? memoryStream.WriteTo(fileStream);
??????????????? memoryStream.Close();
??????????????? fileStream.Close();
??????????????? fileStream = null;
??????????????? memoryStream = null;

轉載于:https://www.cnblogs.com/margiex/archive/2007/11/22/968029.html

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