AJAX跨域問題
可以不可以后端不做跨域的任何處理，全部讓前端來做，比如Nginx？
321121254
2018-12-08
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2018-12-09
可以前端做，但是一般都是后端做，寫一個統(tǒng)一過濾器也可以
?@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);
? ? }
2018-12-09
可以用 openresty