未应用 Spring Boot CORS 过滤器

Question

我实际上正在研究 SrpingBoot 后端。

为了解决 CORS 问题，我使用随处可见的简单过滤器。

@Component
public class CORSResponseFilter implements Filter {

    @Override
    public void init(FilterConfig arg0) throws ServletException {}

    @Override
    public void doFilter(ServletRequest req, ServletResponse resp,
            FilterChain chain) throws IOException, ServletException {

        HttpServletResponse response=(HttpServletResponse) resp;

        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, 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, resp);
    }

    @Override
    public void destroy() {}

}

此过滤器已添加到此处的配置中：

public class ApplicationConfiguration extends ResourceConfig {

    public ApplicationConfiguration() {
        super();

        // Create a recursive package scanner
        PackageNamesScanner resourceFinder = new PackageNamesScanner(
                new String[] { "X.service" }, true);
        // Register the scanner with this Application
        registerFinder(resourceFinder);
        register(JacksonFeature.class);
        // Mise en place du filtre
        register(CORSResponseFilter.class);
    }
}

但我仍然遇到这个错误：

No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access.

我错过了什么？

Answer 1

端口问题，与代码无关。

未应用 Spring Boot CORS 过滤器

SpringBoot CORS Filter not applied

spring

cors

spring-boot