一个非常优秀的AJAX中文问题解决过滤器
代码如下：
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public class AjaxEncodeFilter extends HttpServlet implements Filter { /** * AJAX使用中的字符过滤器，解决中文问题 */ private static final long serialVersionUID = 1L; public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException { /* if (logger.isDebugEnabled()) { logger.debug("doFilter(ServletRequest, ServletResponse, FilterChain) - start"); //$NON-NLS-1$ } */ HttpServletRequest request = (HttpServletRequest) servletRequest; HttpServletResponse response = (HttpServletResponse) servletResponse; String requestedWith = request.getHeader("x-requested-with"); String type = request.getContentType(); if (requestedWith != null && "XMLHttpRequest".equals(requestedWith) && null != type && "application/x-www-form-urlencoded".equals(type)) { // logger.info("This's ajax post.set encode is UTF-8."); request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); request.getParameterMap(); } filterChain.doFilter(request, response); /* if (logger.isDebugEnabled()) { logger.debug("doFilter(ServletRequest, ServletResponse, FilterChain) - end"); //$NON-NLS-1$ } */ } public void init(FilterConfig arg0) throws ServletException { // TODO Auto-generated method stub } }?