Struts2 component corrupts non-english characters(Chinese)

I attempted to create a struts2 component using jsp,and I used UTF-8 header in both jsp pages,but in final result I see that those symbols came corrupted. If I change UTF-8 into GBK,it will be ok,I want to kown the reason why 'UTF-8' doesn't work, thanks!!! Struts version 2.1.8

<%@ page contentType="text/html; charset=UTF-8"  language="java" import="java.util开发者_高级运维.*" pageEncoding="UTF-8"%>

<%@ taglib uri="/struts-tags" prefix="s"%>

componentTag.jsp

<s:component template="mytemplate.jsp">
    <s:param name="list" value="{'java程序设计','Ajax完全学习手册','Struts2学习手册'"> 
    </s:param>
</s:component>

mytemplate.jsp (/WebRoot/template/xhtml)

 <div style="background-color:#eeeeee;" >
<b>JSP自定义模板</b><br/>
图书列表：<s:select list="parameters.list"></s:select>
</div>

set the JVM boot parameter of -Dfile.encoding=utf-8 MyEclipse (MyEclipse->preferences->servers->chose your version and then chose JDK to set the boot parameters)

you may try add these to your struts.xml

struts.locale=zh_CN
struts.i18n.encoding=UTF-8

if not specified in struts.xml or struts.properties struts2 will pick the encoding of your platform(of widows it is gbk by default)

很高兴遇见你