public class CrossDomainFilter implements Filter { ???@Override ???public void init(FilterConfig filterConfig) throws ServletException { ???????// TODO Auto-generated method stub ???????????} ???@Override ???public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) ???????????throws IOException, ServletException { ???????HttpServletResponse resp = (HttpServletResponse) response; ???????// 允许跨域ajax请求 ???????resp.setHeader("Access-Control-Allow-Origin", "*"); ???????resp.setHeader("Access-Control-Allow-Methods", "*"); ???????resp.setHeader("Access-Control-Allow-Headers", "accept, origin, content-type"); ???????resp.setHeader("Content-Type", "application/json;charset=UTF-8"); ???????????????chain.doFilter(request, resp); ???} ???@Override ???public void destroy() { ???????// TODO Auto-generated method stub ???????????}}Filter解决ajax跨域问题
原文地址：http://www.cnblogs.com/programmer1/p/7994045.html