SpringCloudApiGateway之支持Cors跨域请求

待我称王封你为后i 2023-07-25 09:11 10阅读 0赞

只需要在配置gateway项目上添加下面类即可

第一种方式：

#解决跨域请求     
          globalcors:
            corsConfigurations:
              '[/**]':
                allowedOrigins: "http://localhost:9527"
                allowedMethods:
                - GET  
                - POST
                - PUT
                - DELETE
                - OPTIONS
                - PATCH

第二种方式

import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.http.HttpHeaders;
    import org.springframework.http.HttpMethod;
    import org.springframework.http.HttpStatus;
    import org.springframework.http.server.reactive.ServerHttpRequest;
    import org.springframework.http.server.reactive.ServerHttpResponse;
    import org.springframework.web.cors.reactive.CorsUtils;
    import org.springframework.web.server.ServerWebExchange;
    import org.springframework.web.server.WebFilter;
    import org.springframework.web.server.WebFilterChain;
    
    import reactor.core.publisher.Mono;
    
    /**
     * SpringApiGateway Cors
     */
    @Configuration
    public class RouteConfiguration {
        //这里为支持的请求头，如果有自定义的header字段请自己添加（不知道为什么不能使用*）
        private static final String ALLOWED_HEADERS = "x-requested-with, authorization, Content-Type, Authorization, credential, X-XSRF-TOKEN,token,username,client";
        private static final String ALLOWED_METHODS = "*";
        private static final String ALLOWED_ORIGIN = "*";
        private static final String ALLOWED_Expose = "x-requested-with, authorization, Content-Type, Authorization, credential, X-XSRF-TOKEN,token,username,client";
        private static final String MAX_AGE = "18000L";
    
        @Bean
        public WebFilter corsFilter() {
            return (ServerWebExchange ctx, WebFilterChain chain) -> {
                ServerHttpRequest request = ctx.getRequest();
                if (CorsUtils.isCorsRequest(request)) {
                    ServerHttpResponse response = ctx.getResponse();
                    HttpHeaders headers = response.getHeaders();
                    headers.add("Access-Control-Allow-Origin", ALLOWED_ORIGIN);
                    headers.add("Access-Control-Allow-Methods", ALLOWED_METHODS);
                    headers.add("Access-Control-Max-Age", MAX_AGE);
                    headers.add("Access-Control-Allow-Headers", ALLOWED_HEADERS);
                    headers.add("Access-Control-Expose-Headers", ALLOWED_Expose);
                    headers.add("Access-Control-Allow-Credentials", "true");
                    if (request.getMethod() == HttpMethod.OPTIONS) {
                        response.setStatusCode(HttpStatus.OK);
                        return Mono.empty();
                    }
                }
                return chain.filter(ctx);
            };
        }
        
    }