个回答

• 慕侠3183483

  2018-12-09 10:42:14

  可以前端做，但是一般都是后端做，写一个统一过滤器也可以

   @Override

      public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {

          HttpServletResponse response = (HttpServletResponse) res;

          response.setHeader("Access-Control-Allow-Origin", "*");

          response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");

          response.setHeader("Access-Control-Max-Age", "3600");

          response.addHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");

          chain.doFilter(req, res);

      }

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• yangxuefeng

  2018-12-09 04:13:37

  可以用 openresty

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