Struts2 与 freemarker 生成Json、XML 的模板

必须加入的包有jsonplugin-0.30.jar,xsttream-1.3.jar,freemarker-2.3.8.jar

///struts.xml
<struts>
    <include file="struts-default.xml"/>
    <package name="json" extends="json-default">
        <action name="extjs" class="book.action.ExtjsAction">
            <result type="json"/><!-- 这里生成Json -->
        </action>
        <action name="extjsXml" class="book.action.ExtjsAction">
            <result type="freemarker">
	            <param name="location">template/gridXml.ftl</param>
	            <param name="contentType">application/xml</param>
            </result>
        </action>
    </package>
</struts>

模板如下，

//src/template/gridXml.ftl

<?xml version="1.0" encoding="utf-8"?>
<list>
  <Total>
    <results>${results}</results>
  </Total>
  <#list items as item>
  <#assign recordName=item.class.name.replaceAll(".*\\.","")>
  	<${recordName}>
  	<#assign methods=item.class.declaredMethods>
  	<#list methods as method>
  		<#assign isGetMethod=method.name.startsWith("get")>
  		<#if isGetMethod = true>
  		<#assign methodName=method.name.replaceAll("get","").toLowerCase()>
	  		<${methodName}>
	  			${method.invoke(item,null)}
	  		</${methodName}>
  		</#if>
  	</#list>
  	</${recordName}>
  </#list>
</list>

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