DWR+S2SH

任务：将DWR整合到S2SH环境中
步骤：
            1·导入dwr.jar以及依赖包commons.logging.jar
            2·在web.xml中添加如下内容：

<servlet>
    <display-name>DWR Servlet</display-name>
    <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>activeReverseAjaxEnabled</param-name>
      <param-value>true</param-value>
    </init-param>
  </servlet>
    <servlet-mapping>
    <servlet-name>dwr-invoker</servlet-name>
    <url-pattern>/dwr/*</url-pattern>
  </servlet-mapping>

        3·在web.xml同级目录下添加dwr.xml，内容如下：

<!DOCTYPE dwr PUBLIC
    "-//GetAhead Limited//DTD Direct Web Remoting 3.0//EN"
    "http://getahead.org/dwr/dwr30.dtd">
<dwr>
  <allow>
  	
  </allow>
</dwr

        4·在struts.xml中添加如下代码（ 防止struts2与dwr过滤冲突）：

<constant name="struts.action.excludePattern" value="/dwr/.*,/dwr/test/.*" />

        5·DWR中创建转换对象的方式如下：

<create creator="spring"  javascript="demoService" >
  <param name="beanName"  value="demoService"  ></param>
</create>