Ajax調用WCF報405錯誤

環境：jquery1.8.1+Wcf(IIS托管)

錯誤：405錯誤（方法不被允許）

原因：ajax跨域調用錯誤

解決辦法：

1.在發布WCF上面允許crossDomainScriptAccessEnabled

<system.serviceModel>
        <behaviors>

            <endpointBehaviors>
                <behavior name="JSONPAspNetAjaxBehavior">
                    <enableWebScript />
                </behavior>
            </endpointBehaviors>

            <serviceBehaviors>
                <behavior name="EnableMetadataBehaviors">
                    <serviceMetadata httpGetEnabled="true" />
                    <serviceDebug includeExceptionDetailInFaults="true" />
                </behavior>
            </serviceBehaviors>
        </behaviors>

        <bindings>
            <webHttpBinding>
        
                <binding name="HttpJsonpBinding" crossDomainScriptAccessEnabled="true"></binding>
            </webHttpBinding>
        </bindings>

        <serviceHostingEnvironment aspNetCompatibilityEnabled="true"    multipleSiteBindingsEnabled="true" >
            <serviceActivations>
                <add relativeAddress="FieldService.svc"   service="FieldService" factory="System.ServiceModel.Activation.WebScriptServiceHostFactory"/>

            </serviceActivations>
        </serviceHostingEnvironment>

        <services>
            <service name="FieldService" behaviorConfiguration="EnableMetadataBehaviors">
                <endpoint address="" behaviorConfiguration="JSONPAspNetAjaxBehavior" binding="webHttpBinding" bindingConfiguration="HttpJsonpBinding" contract="FieldService" />
            </service>
        </services>
    </system.serviceModel>

 

2.實現類加上支持回調

[JavascriptCallbackBehavior(UrlParameterName = "jsoncallback")]

3.操作方法上加特性只支持Get,並且返回的數據類型是JSON

[OperationContract]
    [WebGet(ResponseFormat = WebMessageFormat.Json)]

 

4.客戶端JS調用需要加上參數jsoncallback

/DataBaseGetService.svc/GetItemClassSelect?jsoncallback=?

好了，大致4個步驟。我也是從網上找到的解決方案，記錄下，送給需要的同學