SpringCloud(Hoxton)--配置Gateway网关、动态路由
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2022-06-13 15:38:41
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cloud-gateway-gateway9527网关微服务
依赖:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>cloud2020</artifactId>
<groupId>pers.zhang.springcloud</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>cloud-gateway-gateway9527</artifactId>
<dependencies>
<!--gateway-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>
<!--eureka-client-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<!-- 引入自己定义的api通用包,可以使用Payment支付Entity -->
<dependency>
<groupId>pers.zhang.springcloud</groupId>
<artifactId>cloud-api-commons</artifactId>
<version>${project.version}</version>
</dependency>
<!--一般基础配置类-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
配置:application.yml
server:
port: 9527
spring:
application:
name: cloud-gateway
cloud:
gateway:
routes:
- id: payment_routh #payment_route #路由的ID,没有固定规则但要求唯一,建议配合服务名
uri: http://localhost:8001 #匹配后提供服务的路由地址
predicates:
- Path=/payment/get/** #断言,路径相匹配的进行路由
- id: payment_routh2 #payment_route
uri: http://localhost:8001
predicates:
- Path=/payment/lb/**
eureka:
instance:
hostname: cloud-gateway-service
client: #服务提供者provider注册进eureka服务列表内
service-url:
register-with-eureka: true
fetch-registry: true
defaultZone: http://eureka7001.com:7001/eureka
路由的配置对应被调用的8001端口的接口:
启动类:
@SpringBootApplication
@EnableEurekaClient
public class GateWayMain9527 {
public static void main(String[] args) {
SpringApplication.run(GateWayMain9527.class, args);
}
}
测试:启动eureka,8001微服务和9527网关:
访问:localhost:9527/payment/get/35
访问:localhost:9527/payment/lb
使用编码方式配置路由
代码注入RouteLocator的Bean,官网案例如下:
路由配置类:
@Configuration
public class GateWayConfig {
@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder routeLocatorBuilder) {
RouteLocatorBuilder.Builder routes = routeLocatorBuilder.routes();
routes.route("path_route_baidu",
r -> r.path("/guonei")
.uri("http://news.baidu.com/guonei")).build();
return routes.build();
}
}
测试:访问localhost:9527/guonei
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配置动态路由
默认情况下Gateway会根据注册中心注册的服务列表,以注册中心上微服务名为路径创建动态路由进行转发,从而实现动态路由的功能。
修改配置:
server:
port: 9527
spring:
application:
name: cloud-gateway
cloud:
gateway:
discovery:
locator:
enabled: true #开启从注册中心动态创建路由的功能,利用微服务名进行路由
routes:
- id: payment_routh #payment_route #路由的ID,没有固定规则但要求唯一,建议配合服务名
#uri: http://localhost:8001 #匹配后提供服务的路由地址
uri: lb://cloud-payment-service #匹配后提供服务的路由地址
predicates:
- Path=/payment/get/** #断言,路径相匹配的进行路由
- id: payment_routh2 #payment_route
#uri: http://localhost:8001
uri: lb://cloud-payment-service #匹配后提供服务的路由地址
predicates:
- Path=/payment/lb/**
eureka:
instance:
hostname: cloud-gateway-service
client: #服务提供者provider注册进eureka服务列表内
service-url:
register-with-eureka: true
fetch-registry: true
defaultZone: http://eureka7001.com:7001/eureka
启动eureka,8001和8002两个服务以及9527网关:
访问:localhost:9527/payment/lb
,调用的服务在8001,8002两个端口切换
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