java B2B2C Springcloud多租户电子商城系统-springcloud项目网关升级

Spring Cloud Gateway建立在Spring work 5，Project Reactor和Spring Boot 2之上，使用非阻塞API。 Websockets得到支持，并且由于它与Spring紧密集成，所以将会是一个更好的开发体验。

需要JAVA Spring Cloud大型企业分布式微服务云构建的B2B2C电子商务平台源码请加企鹅求求 ：二一四七七七五六三三

1.添加maven依赖：

<dependency>
    <groupId>org.spring work.boot</groupId>
    <artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
    <groupId>org.spring work.cloud</groupId>
    <artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>
<dependency>
    <groupId>org.spring work.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
</dependency>

注：gateway是用过webflux实现，在项目中请不要引用webmvc，否则初始化会报错
2.配置过滤器：

public class loginfiler implements GlobalFilter {
     @Override
    public Mono<Void> filter(ServerWebExchange serverWebExchange, GatewayFilterChain gatewayFilterChain) {
        。。。 
        return gatewayFilterChain.filter(serverWebExchange.mutate().request(build).build());
    }
}

注：在这里可以实现记录日志和访问权限校验等
3.如果是前后端分离的项目，需要增加配置以解决跨域问题：

package com.gameley.config;

import org.spring work.cloud.client.discovery.DiscoveryClient;
import org.spring work.cloud.gateway.discovery.DiscoveryClientRouteDefinitionLocator;
import org.spring work.cloud.gateway.route.RouteDefinitionLocator;
import org.spring work.context.annotation.Bean;
import org.spring work.context.annotation.Configuration;
import org.spring work.http.HttpHeaders;
import org.spring work.http.HttpMethod;
import org.spring work.http.HttpStatus;
import org.spring work.http.server.reactive.ServerHttpRequest;
import org.spring work.http.server.reactive.ServerHttpResponse;
import org.spring work.web.cors.reactive.CorsUtils;
import org.spring work.web.server.ServerWebExchange;
import org.spring work.web.server.WebFilter;
import org.spring work.web.server.WebFilterChain;
import reactor.core.publisher.Mono;


/**
 * @author wwmxd
 * @create 2018/3/22.
 */
@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 = \"*\";
    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);
        };
    }
    /**
    *
    *如果使用了注册中心（如：Eureka），进行控制则需要增加如下配置
    */
    @Bean
    public RouteDefinitionLocator discoveryClientRouteDefinitionLocator(DiscoveryClient discoveryClient) {
        return new DiscoveryClientRouteDefinitionLocator(discoveryClient);
    }
}

java B2B2C springmvc mybatis多租户电子商城系统