Spring 4.2.2 CORS Support not working - spring

Question

#Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/**")
}
I'm following the guide in https://spring.io/blog/2015/06/08/cors-support-in-spring-framework and added the above code to my WebConfig
However, CORS is not working, log show
20151103 183823 [http-bio-8080-exec-3] WARN org.springframework.web.servlet.DispatcherServlet (DispatcherServlet.java:1136) - No mapping found for HTTP request with URI [/my/url] in DispatcherServlet with name 'dispatcher'
I can successfully call my api without CORS(same domain), so it is not the api problem.
In Chrome console, log show
XMLHttpRequest cannot load http://localhost:8080/my/url.
Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Origin 'http://localhost:8100' is therefore not allowed access. The response had HTTP status code 404.

Answer 1

Just add this filter for CROS in package which is contain other configuation
#Component
public class RequestFilter implements Filter {
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, PUT, OPTIONS, DELETE");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
chain.doFilter(req, res);
}
public void init(FilterConfig filterConfig) {
}
public void destroy() {
}
}
It will work fine for you.