单向的webservice和新的SPSite(myUrl)

时间:2008-12-04 10:42:20

标签: web-services sharepoint moss

我有一个打开苔藓网站的单向网络方法的问题(可能是因为在单向webmethod中上下文为空)

是否可以重写此代码以删除空引用异常? (没有单向属性我没有例外)

[SoapDocumentMethod(OneWay = true)]
        [WebMethod(Description = "TestOneWay")]
        public voidTestOneWay(string webUrl)
        {
            using (SPSite site = new SPSite(webUrl))
            {
                 ....
            }
         }

例外是:

[2304] Error:Object reference not set to an instance of an object.
[2304] w3wp.exe Error: 0 :
[2304StackTrace:   at System.Web.Hosting.ISAPIWorkerRequestInProc.GetAdditionalServerVar(Int32 index)
[2304]    at System.Web.Hosting.ISAPIWorkerRequestInProc.GetServerVariable(String name)
[2304]    at System.Web.HttpRequest.AddServerVariableToCollection(String name)
[2304]    at System.Web.HttpRequest.FillInServerVariablesCollection()
[2304]    at System.Web.HttpServerVarsCollection.Populate()
[2304]    at System.Web.HttpServerVarsCollection.Get(String name)
[2304]    at System.Collections.Specialized.NameValueCollection.get_Item(String name)
[2304]    at Microsoft.SharePoint.SPGlobal.CreateSPRequestAndSetIdentity(Boolean bNotGlobalAdminCode, String strUrl, Boolean bNotAddToContext, Byte[] UserToken, String userName, Boolean bIgnoreTokenTimeout, Boolean bAsAnonymous)
[2304]    at Microsoft.SharePoint.SPRequestManager.GetContextRequest(SPRequestAuthenticationMode authenticationMode)
[2304]    at Microsoft.SharePoint.Administration.SPFarm.get_RequestNoAuth()
[2304]    at Microsoft.SharePoint.SPSite.CopyUserToken(SPUserToken userToken)
[2304]    at Microsoft.SharePoint.SPSite.SPSiteConstructor(SPFarm farm, Guid applicationId, Guid contentDatabaseId, Guid siteId, SPUrlZone zone, Uri requestUri, String serverRelativeUrl, Boolean hostHeaderIsSiteName, Uri redirectUri, Pairing pairing, SPUserToken userToken)
[2304]    at Microsoft.SharePoint.SPSite..ctor(SPFarm farm, Uri requestUri, Boolean contextSite, SPUserToken userToken)
[2304]    at Microsoft.SharePoint.SPSite..ctor(String requestUrl)
[2304]    at Reply.Moss2EAI.SPHandler.GetAllFlowConfiguration(String webUrl, String flowConList)
[2304]    at Reply.Moss2EAI.EaiMossIntegration.GetMessagesFromEai(String webUrl, String listName, String applicationName)

3 个答案:

答案 0 :(得分:1)

我找到了解决问题的解决方法。创建新的HttpContext。现在的问题是: 它是正确的解决方案还是我不考虑的含义?

我用来改变上下文的方法是:

//Call this before call new SPSite()
 private static void ChangeContext(string webUrl)
        {
            Trace.TraceInformation("ChangeContext");
            HttpContext current = HttpContext.Current;
            HttpRequest request = new HttpRequest("", webUrl, "");
            HttpContext.Current = new HttpContext(request, new HttpResponse(new StringWriter(CultureInfo.CurrentCulture)));
            HttpContext.Current.User = current.User;
        }

答案 1 :(得分:0)

我看到的唯一含义是你实际上正在使用一个新的HttpContext。

嗯...嗯:)

无论如何,如果您还设置了输入和输出过滤器,这将产生影响。例如,如果您将WebServiceExtensions(WSE)与您自己的输入和输出过滤器一起使用。在这种情况下,您应该将数据存储在HttpContext中(即输入和输出过滤器中的数据)并使用该数据。这样您只使用一个httpContext,而不是创建第二个httpContext,并在扩展软件时防止将来出现任何错误。

答案 2 :(得分:0)

使用此功能将对您有用:

SPWeb web = SPContext.Current.Web