Java设置Access-Control-Allow-Origin允许多域名访问的实现方法

@Override
 public void doFilter(ServletRequest request, ServletResponse response,
       FilterChain chain) throws IOException, ServletException {
  HttpServletRequest req = (HttpServletRequest) request;
  HttpServletResponse rep = (HttpServletResponse) response;
  // 设置允许多个域名请求
  String[] allowDomains = {"http://www.toheart.xin","http://192.168.11.213:8080","http://localhost:8080"};
  Set allowOrigins = new HashSet(Arrays.asList(allowDomains));
  String originHeads = req.getHeader("Origin");
  if(allowOrigins.contains(originHeads)){
   //设置允许跨域的配置
   // 这里填写你允许进行跨域的主机ip（正式上线时可以动态配置具体允许的域名和IP）
   rep.setHeader("Access-Control-Allow-Origin", originHeads);
  }