最近在看struts2.0，这个基本就是webwork2.2。以前没有弄过webwork，所以有几个小问题想问问？
1、表单提交中文问题：
如果是 <s:form表单提交，中文无法过滤，出现都是？号，我看了网上的文章试着把过滤器放在strust2.0 FilterDispatcher的前面，结果还是一样。
2、表单验证问题。struts2.0的表单验证比较简单，只要写个xxx-validation.xml就可以了。我写的ProductsAction-save-validation.xml内容如下：
<?xml version= "1.0 " encoding= "UTF-8 "?>
<!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0//EN " "http://www.opensymphony.com/xwork/xwork-validator-1.0.dtd ">
<validators>
<!-- Field-Validator Syntax -->
<field name= "product.gameNameCn ">
<field-validator type= "requiredstring ">
<message key= "product.gameNameCn.required "/>
</field-validator>
</field>
<field name= "product.gameNameEn ">
<field-validator type= "requiredstring ">
<message key= "product.gameNameEn.required "/>
</field-validator>
</field>
<field name= "product.gameCapacity ">
<field-validator type= "requiredstring ">
<message key= "product.gameCapacity.required "/>
</field-validator>
</field>
</validators>
然后在struts_products.xml配置加上 <interceptor-ref name= "validation "/> 。然后在s:form表单加上validate= "true "，验证就可以通过。
但这时出问题了，我的表单无法提交了，因为取不到表单元素属性的值。全部是空值。
------解决方案--------------------
过滤器：
public class chineseFilter implements Filter {
protected String encoding = null;
protected FilterConfig filterConfig = null;
protected boolean ignore = true;
public void destroy() {
this.encoding = null;
this.filterConfig = null;
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException,
ServletException {
// Conditionally select and set the character encoding to be used
if (ignore || (request.getCharacterEncoding() == null)) {
String encoding = selectEncoding(request);
if (encoding != null) {
request.setCharacterEncoding(encoding);
response.setCharacterEncoding( "gb2312 ");
}
}
// Pass control on to the next filter
chain.doFilter(request, response);
}
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
this.encoding = filterConfig.getInitParameter( "encoding ");
String value = filterConfig.getInitParameter( "ignore ");