wcf寄宿在iis上的跨域访问问题【不止是添加跨域文件】

当客户端为silverlight或者其它不默认支持跨域的技术时，需要为wcf手动开启跨域，详细方法如下：

首先跨域文件是必须的

ClientAccessPolicy.xml

1 <?xml version="1.0" encoding="utf-8"?>

2 <access-policy>

3 <cross-domain-access>

4 <policy>

5 <allow-from http-request-headers="*">

6 <domain uri="*"/>

7 </allow-from>

8 <grant-to>

9 <resource path="/" include-subpaths="true"/>

10 </grant-to>

11 </policy>

12 </cross-domain-access>

13 </access-policy>

CrossDomain.xml

1 <?xml version="1.0"?>

2 <cross-domain-policy>

3 <allow-access-from domain="*" />

4 </cross-domain-policy>

以上两个跨域文件需放在部署在iis上的根目录下。

服务端config配置如下：

1 <system.serviceModel>

2 <behaviors>

3 <serviceBehaviors>

4 <behavior name="LoggerBehavior">

5 <serviceDebug includeExceptionDetailInFaults="true" />

6 <serviceMetadata httpGetEnabled="true" />

7 </behavior>

8 </serviceBehaviors>

9 </behaviors>

10 <extensions>

11 </extensions>

12 <bindings>

13 <basicHttpBinding>

14 <binding name="UnSecureConversationBinding" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="1048576" maxBufferPoolSize="2097152" maxReceivedMessageSize="1048576" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true">

15 <readerQuotas maxDepth="32" maxStringContentLength="16777216" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" />

16 <security mode="None"></security>

17 </binding>

18 </basicHttpBinding>

19 </bindings>

20 <services>

21 <service behaviorConfiguration="LoggerBehavior" name="eTank.OIU.Service.OIUService" >

22 <endpoint binding="basicHttpBinding" bindingConfiguration="UnSecureConversationBinding" contract="eTank.OIU.Contract.IOIUUC" />

23 <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>

24 </service>

25 <service behaviorConfiguration="LoggerBehavior" name="eTank.OIU.Service.SMSConfigService" >

26 <endpoint binding="basicHttpBinding" bindingConfiguration="UnSecureConversationBinding" contract="eTank.OIU.Contract.ISMSConfigUC" />

27 <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>

28 </service>

29 </services>

30 </system.serviceModel>

以上服务器配置需要注意的地方为：

1.behavior中的<serviceMetadata httpGetEnabled="true" />是必须的；

2.binding中的安全级别设为none，如：<security mode="None"></security>；

3.每个服务添加一个元数据的终结点配置，如：<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>；

完成以上配置以后silverlight等客户端即可以实现跨域访问wcf服务了。