原文：http://www.cnblogs.com/andiki/archive/2010/05/17/1737254.html
jquery ajax調用webservice(C#)要注意的幾個事項：
1、web.config裡需要配置2個地方
<httpHandlers> <remove verb="*" path="*.asmx"/> <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/> </httpHandlers> 在<system.web></system.web>之間加入 <webServices> <protocols> <add name="HttpPost" /> <add name="HttpGet" /> </protocols> </webServices>
2.正确地編寫webserivce的代碼
/// <summary> /// UserValidate 的摘要說明 /// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [System.ComponentModel.ToolboxItem(false)] // 若要允許使用 ASP.NET AJAX 從腳本中調用此 Web 服務，請取消對下行的注釋。 [System.Web.Script.Services.ScriptService] public class UserValidate : System.Web.Services.WebService { DFHon.Content.Common.rootPublic rp = new DFHon.Content.Common.rootPublic(); [WebMethod] [ScriptMethod(ResponseFormat = ResponseFormat.Json)] public string ValidateUserLogState() { string result = ""; HttpCookie cookie = HttpContext.Current.Request.Cookies["DHFonMenberInfo"]; if (cookie != null) { string username = System.Web.HttpUtility.UrlDecode(cookie["MenberName"]); int ipoint = 0; int gpoint = 0; try { DataTable dt = UserBll.ExecuteUserAllInfo(username);
if (dt.Rows.Count > 0) { ipoint = int.Parse(dt.Rows[0]["iPoint"].ToString()); gpoint = int.Parse(dt.Rows[0]["gPoint"].ToString()); } } catch { } result = "{'user':{'id':'" + cookie["UserId"] + "','name':'" + username + "','message':'" + rp.getUserMsg(DFHon.Global.CurrentCookie.UserName) + "','ipoint':'" + ipoint.ToString() + "','gpoint':'" + gpoint.ToString() + "'}}"; } else { result = "{'user':{'id':'0','name':'','message':'0','ipoint':'0','gpoint':'0'}}"; } return result; }
[WebMethod] [ScriptMethod(ResponseFormat = ResponseFormat.Json)] public string UserLogin(string userName, string userPwd) { string returnVal = ""; try { GlobalUserInfo info; DFHon.Content.UserLogin _UserLogin = new DFHon.Content.UserLogin(); EnumLoginState state = _UserLogin.PersonLogin(HttpUtility.UrlDecode(userName), userPwd, out info); if (state == EnumLoginState.Succeed) { DFHon.Global.CurrentCookie.Set(info); DFHon.API.PDO.DiscuzNT.PassportLogin.UserLogin(Server.UrlDecode(userName), userPwd, -1); int ipoint = 0; int gpoint = 0; DataTable dt = UserBll.ExecuteUserAllInfo(userName);
if (dt.Rows.Count > 0) { ipoint = int.Parse(dt.Rows[0]["iPoint"].ToString()); gpoint = int.Parse(dt.Rows[0]["gPoint"].ToString()); } returnVal =