SpringBoot解决跨域请求的OPTIONS问题

逃离我推掉我的手 2024-04-20 10:20 66阅读 0赞

*  定义过滤器
    
        import javax.servlet.*;
        import javax.servlet.http.HttpServletRequest;
        import javax.servlet.http.HttpServletResponse;
        import java.io.IOException;
        
        public class CorsFilter implements Filter {
            @Override
            public void init(FilterConfig filterConfig) {
                // TODO Auto-generated method stub
            }
        
            @Override
            public void doFilter(ServletRequest request, ServletResponse response,
                                 FilterChain chain) throws IOException, ServletException {
                if (request instanceof HttpServletRequest) {
                    HttpServletResponse httpServletResponse = (HttpServletResponse) response;
                    httpServletResponse.setHeader("Access-Control-Allow-Origin", "*");
                    httpServletResponse.setHeader("Access-Control-Allow-Methods",
                            "POST, GET, OPTIONS, DELETE");
                    httpServletResponse.setHeader("Access-Control-Max-Age", "3600");
                    httpServletResponse.setHeader("Access-Control-Allow-Headers",
                            "Content-Type, x-requested-with, X-Custom-Header, Authorization");
                }
                chain.doFilter(request, response);
            }
        
            @Override
            public void destroy() {
                // TODO Auto-generated method stub
            }
        }
 *  注册过滤器
    
        @Bean
            public FilterRegistrationBean corsFilterRegistration() {
                FilterRegistrationBean registration = new FilterRegistrationBean();
                registration.setFilter(new CorsFilter());
                registration.addUrlPatterns("/*");
                registration.setName("corsFilter");
                //将其注册在其他过滤器的前面
                registration.setOrder(0);
                return registration;
            }