在 Silverlight 应用程序的 java servlet 上启用跨域调用
我有一个带有 OData4j 库的 java servlet，我想对其进行配置，以便可以从 Silverlight 应用程序发出 HTTP POST 请求。
我的 web.xml 文件如下所示：
<servlet>
<servlet-name>OData</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.resourceConfigClass</param-name>
<param-value>org.odata4j.producer.resources.ODataResourceConfig</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>OData</servlet-name>
<url-pattern>/myService/*</url-pattern>
</servlet-mapping>
我尝试将其添加到我的 web.xml 文件中：
<servlet>
<servlet-name>CrossDomain</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.resourceConfigClass</param-name>
<param-value>org.odata4j.producer.resources.CrossDomainResourceConfig</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>CrossDomain</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
但它不起作用。我还尝试将“crossdomain.xml”和“clientaccesspolicy.xml”文件添加到我的资源目录中，但这也不起作用。使用 Silverlight 应用程序发送 HTTP POST 请求时，我仍然收到 SecurityException。
任何提示将不胜感激。
谢谢
I have a java servlet with the OData4j library and I want to configure it so I can make HTTP POST request from a Silverlight application.
My web.xml file looks like this:
<servlet>
<servlet-name>OData</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.resourceConfigClass</param-name>
<param-value>org.odata4j.producer.resources.ODataResourceConfig</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>OData</servlet-name>
<url-pattern>/myService/*</url-pattern>
</servlet-mapping>
I've tried adding this to my web.xml file:
<servlet>
<servlet-name>CrossDomain</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.resourceConfigClass</param-name>
<param-value>org.odata4j.producer.resources.CrossDomainResourceConfig</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>CrossDomain</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
But it doesn't work. I also tried adding the "crossdomain.xml" and "clientaccesspolicy.xml" files to my resources directory but that also doesn't work. I still get a SecurityException when sending a HTTP POST request with my Silverlight application.
Any hints would be greatly appreciated.
Thanks
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事实证明，实例化 CrossDomainResourceConfig 确实启用了“crossdomain.xml”和“clientaccesspolicy.xml”文件。问题是它们可以通过以下 URL 获得：
/myService/crossdomain.xml和/myService/clientaccesspolicy.xml。但是，Silverlight 运行时会在服务器根目录中查找这些文件（例如：
/clientaccesspolicy.xml），通过在服务器根目录中手动添加这两个文件，它解决了该问题。
Turns out that instantiating CrossDomainResourceConfig does enable the "crossdomain.xml" and "clientaccesspolicy.xml" files. The thing is that they are available at the URL:
/myService/crossdomain.xmland/myService/clientaccesspolicy.xml.However, the Silverlight runtime looks for those files at the server root (eg:
/clientaccesspolicy.xml)By adding both of those files manually in the server root, it fixed the problem.