STRUTS2 国际化

STRUTS2 国际化

1.过滤器

package  com.i18n;

import  java.io.IOException;

import  javax.servlet.Filter;
import  javax.servlet.FilterChain;
import  javax.servlet.FilterConfig;
import  javax.servlet.ServletException;
import  javax.servlet.ServletRequest;
import  javax.servlet.ServletResponse;
import  javax.servlet.http.HttpServletRequest;

public   class  I18nFilter  implements  Filter
{
    
    public void destroy()
    {}
    
    public void doFilter(ServletRequest req, ServletResponse resp,
            FilterChain filterChain) throws IOException, ServletException
    {
        HttpServletRequest request = (HttpServletRequest) req;
        MyRequestWrapper wrapper = new MyRequestWrapper(request);
        filterChain.doFilter(wrapper, resp);
    }
    
    public void init(FilterConfig arg0) throws ServletException
    {}
}

2.过滤器配置

< filter >    
         < filter-name > i18nFilter </ filter-name >    
         < filter-class > com.xxx.common.filter.I18nFilter </ filter-class >    
     </ filter >    
     < filter-mapping >    
         < filter-name > i18nFilter </ filter-name >    
         < url-pattern > * </ url-pattern >    
    </ filter-mapping >   

3.包装类

package  com.i18n;

import  java.util.Locale;

import  javax.servlet.http.HttpServletRequest;
import  javax.servlet.http.HttpServletRequestWrapper;
import  javax.servlet.http.HttpSession;

public   class  MyRequestWrapper  extends  HttpServletRequestWrapper
{
    
    private Locale locale = null;
    
    public MyRequestWrapper(HttpServletRequest request)
    {
        super(request);
        HttpSession session = request.getSession();
        locale = (Locale) session.getAttribute("WW_TRANS_I18N_LOCALE");
    }
    
    public String getHeader(String name)
    {
        String value = super.getHeader(name);
        if ("Accept-Language".equals(name) && locale != null)
        {
            value = locale.getLanguage() + "_" + locale.getCountry()
                    + value.substring(6, value.length());
        }
        return value;
    }
    
    public Locale getLocale()
    {
        if (locale != null)
        {
            return locale;
        }
        return super.getLocale();
    }
    
}