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：
<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>?