1.在项目中加入struts2-dojo-plugin-2.1.8.jar
2.在jsp页面中加入<%@ taglib prefix="sx" uri="/struts-dojo-tags"%>
在<head><sx:head /></head>
<!-- 显示树列表 -->
<sx:tree rootNode="root" nodeIdProperty="id" nodeTitleProperty="name" childCollectionProperty="childrens"
showRootGrid="true" showGrid="true" id="nodeId">
</sx:tree>
3.在web.xml中的strus2配置如下：
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
若配置如下：
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
则不能过滤js文件了，会报错，可以加
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.js</url-pattern>
</filter-mapping>
或者直接写成如下
filter-mapping><filter-name>struts2</filter-name><url-pattern>/*</url-pattern></filter-mapping>