package com.spring.cloud.gateway.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication(scanBasePackages = "com.spring.cloud.gateway.*")
public class DemoApplication {


public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}

package com.spring.cloud.gateway.config;


import org.springframework.cloud.gateway.route.RouteLocator;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;


@Configuration
public class GatewayConfig {
@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder)
{
//获取Gateway路由构建器
RouteLocatorBuilder.Builder routes=builder.routes();
/**
* 为Gateway路由构建器创建路由规则
* id:微服务实例标识
* path:服务路由访问地址
* uri:服务实例调用地址
*本例中的路由规则:当服务请求路径为/user/**时，将服务路由到实际处理用户服务的服务实例localhost://8100/user
*/
routes.route("user-routes",u->u.path("/user/**").uri("localhost://8100/user")).build();
//返回路由构建器创建的路由定位器
return routes.build();
}
}

#配置Gateway网关
#配置Gateway网关服务路由标识
spring.cloud.gateway.routes[0].id=user-routes
#配置Gateway网关服务路由uri
spring.cloud.gateway.routes[0].uri=localhost://8100/user
#配置Gateway网关断言为Path断言工厂(匹配服务路由访问地址)
spring.cloud.gateway.routes[0].predicates=Path=/user/**
#配置Gateway网关服务路由标识
spring.cloud.gateway.routes[1].id=order-routes
#配置Gateway网关服务路由uri
spring.cloud.gateway.routes[1].uri=lb://order-routes
#配置Gateway网关断言为Path断言工厂(匹配服务路由访问地址)
spring.cloud.gateway.routes[1].predicates=Path=/order/**