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 <endpointbinding="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 <endpointbinding="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。
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