public class CorsFilter extends OncePerRequestFilter { static final String ORIGIN = "Origin"; protected void doFilterInternal( HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException { String origin = request.getHeader(ORIGIN); response.setHeader("Access-Control-Allow-Origin", "*");//* or origin as u prefer response.setHeader("Access-Control-Allow-Credentials", "true"); response.setHeader("Access-Control-Allow-Methods", "PUT, POST, GET, OPTIONS, DELETE"); response.setHeader("Access-Control-Max-Age", "3600"); response.setHeader("Access-Control-Allow-Headers", "content-type, authorization"); if (request.getMethod().equals("OPTIONS")) response.setStatus(HttpServletResponse.SC_OK); else filterChain.doFilter(request, response); }}@Beanpublic CorsFilter corsFilter() throws Exception { return new CorsFilter();}http .addFilterBefore(corsFilter(), UsernamePasswordAuthenticationFilter.class) .addFilterBefore(authenticationTokenFilterBean(), UsernamePasswordAuthenticationFilter.class) .headers() .cacheControl(); @Configurationpublic class CorsConfig { @Bean public FilterRegistrationBean corsFilter() { UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); CorsConfiguration config = new CorsConfiguration(); config.setAllowCredentials(true); // 设置你要允许的网站域名，如果全允许则设为 * config.addAllowedOrigin("http://localhost:4200"); // 如果要限制 HEADER 或 METHOD 请自行更改 config.addAllowedHeader("*"); config.addAllowedMethod("*"); source.registerCorsConfiguration("/**", config); FilterRegistrationBean bean = new FilterRegistrationBean(new CorsFilter(source)); // 这个顺序很重要哦，为避免麻烦请设置在最前 bean.setOrder(0); return bean; }} 
