springBoot跨域

基于spring boot 2.3.0.RELEASE 版本的跨域处理方案

    org.springframework.boot
    spring-boot-dependencies
    2.3.0.RELEASE
    pom
    import

@Component
public class CorsFilter implements Filter {
    public static final Logger LOG = LoggerFactory.getLogger("CorsFilter.class");

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, DELETE, OPTIONS");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "Origin, Content-Type, Authorization, X-Requested-With");
        // 处理OPTIONS请求
        if (request.getMethod().equals("OPTIONS")) {
            response.getWriter().println("ok");
            return;
        }
        filterChain.doFilter(servletRequest, servletResponse);
    }

    @Override
    public void destroy() {

    }
}