DWR跨域访问配置

DWR跨域访问的实现是从2.0开始的

具体配置如下：

web.xml中：

<servlet>
    <servlet-name>dwr-invoker</servlet-name>
    <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
    <init-param>
      <param-name>debug</param-name>
      <param-value>true</param-value>
    </init-param>
    <init-param>
	  <param-name>allowScriptTagRemoting</param-name>
	  <param-value>true</param-value>
	</init-param>
	<init-param>   
      <param-name>crossDomainSessionSecurity</param-name>   
      <param-value>false</param-value>   
    </init-param>
	<init-param>
	  <param-name>allowGetForSafariButMakeForgeryEasier</param-name>
	  <param-value>true</param-value>
	</init-param>
  </servlet>

 其中allowScriptTagRemoting，crossDomainSessionSecurity，allowGetForSafariButMakeForgeryEasier即为跨域访问所需的配置参数

跨域访问时代码如下：

<script type='text/javascript' src='http://www.a.com/dwr/interface/Theme.js'></script>
<script type='text/javascript' src='http://www.a.com/dwr/engine.js'></script>
<script>
	DWREngine.setMethod(DWREngine.ScriptTag);
	Theme._path = 'http://www.a.com/dwr';
	Theme.method1("param",function(result){});
</script>