filter编写后,依然报错。没有起作用
@SpringBootApplication public class AjaxserverApplication { public static void main(String[] args) { SpringApplication.run(AjaxserverApplication.class, args); } @Bean public FilterRegistrationBean registerFilter() { FilterRegistrationBean bean = new FilterRegistrationBean(); bean.addUrlPatterns("/*"); bean.setFilter(new CrosFilter()); return bean; } }
public class CrosFilter implements Filter { @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { HttpServletResponse res = (HttpServletResponse) response; res.addHeader("Access-Control-Allow-Origin", "*"); res.addHeader("Access-Control-Allow-Methods", "*"); chain.doFilter(request, response); } @Override public void init(FilterConfig filterConfig) throws ServletException {} @Override public void destroy() {} }
但还是报错,不知道问题出在哪里,打断点也没看出问题在哪里