1、新建Module

2、POM

  1.  <dependencies>
  2.         <!--gateway-->
  3.         <dependency>
  4.             <groupId>org.springframework.cloud</groupId>
  5.             <artifactId>spring-cloud-starter-gateway</artifactId>
  6.         </dependency>
  7.         <!--eureka-client-->
  8.         <dependency>
  9.             <groupId>org.springframework.cloud</groupId>
  10.             <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
  11.         </dependency>
  12.         <!-- 引入自己定义的api通用包，可以使用Payment支付Entity -->
  13.         <dependency>
  14.             <groupId>com.atguigu.springcloud</groupId>
  15.             <artifactId>cloud-api-commons</artifactId>
  16.             <version>${project.version}</version>
  17.         </dependency>
  18.         <!--一般基础配置类-->
  19.         <dependency>
  20.             <groupId>org.springframework.boot</groupId>
  21.             <artifactId>spring-boot-devtools</artifactId>
  22.             <scope>runtime</scope>
  23.             <optional>true</optional>
  24.         </dependency>
  25.         <dependency>
  26.             <groupId>org.projectlombok</groupId>
  27.             <artifactId>lombok</artifactId>
  28.             <optional>true</optional>
  29.         </dependency>
  30.         <dependency>
  31.             <groupId>org.springframework.boot</groupId>
  32.             <artifactId>spring-boot-starter-test</artifactId>
  33.             <scope>test</scope>
  34.         </dependency>
  35.     </dependencies>

3、YML

  1. server:
  2.   port: 9527
  4. spring:
  5.   application:
  6.     name: cloud-gateway //应用类名称
  7. eureka:
  8.   instance:
  9.     hostname: cloud-gateway-service
  10.   client: #服务提供者provider注册进eureka服务列表内
  11.     service-url:
  12.       register-with-eureka: true
  13.       fetch-registry: true
  14.       defaultZone: http://localhost:7001/eureka

4、业务类

5、主启动类

image.png

6、9527网关如何做路由映射

1、cloud-provider-payment8001看看controller的访问地址

Get
lb

2、我们目前不想暴露8001端口，希望在8001外面套一层9527

7、YML新增网关配置

  1. server:
  2.   port: 8001
  4. spring:
  5.   application:
  6.     name: cloud-payment-service
  7.   datasource:
  8.     type: com.alibaba.druid.pool.DruidDataSource
  9.     driver-class-name: com.mysql.jdbc.Driver
  10.     url:  jdbc:mysql://localhost:3306/user_db?useUnicode=true&characterEncoding=utf-8&useSSL=false
  11.     username: root
  12.     password: root
  15. mybatis:
  16.   mapper-locations: classpath:mapper/*.xml
  17.   type-aliases-package: com.zxd.springcloud.entities #所有Entity别名类所在包
  20. eureka:
  21.   client:
  22.     #表示是否将自己注册进EurekaServer默认为true。
  23.     register-with-eureka: true
  24.     #是否从EurekaServer抓取已有的注册信息，默认为true。单节点无所谓，集群必须设置为true才能配合ribbon使用负载均衡
  25.     fetchRegistry: true
  26.     service-url:
  27.       #单机版
  28.       defaultZone: http://localhost:7001/eureka
  29.       # 集群版
  30.       #defaultZone: http://eureka7001.com:7001/eureka,http://eureka7002.com:7002/eureka
  31.   instance:
  32.     instance-id: payment8001
  33.     #访问路径可以显示IP地址
  34.     prefer-ip-address: true
  35.     #Eureka客户端向服务端发送心跳的时间间隔，单位为秒(默认是30秒)
  36.     #lease-renewal-interval-in-seconds: 1
  37.     #Eureka服务端在收到最后一次心跳后等待时间上限，单位为秒(默认是90秒)，超时将剔除服务
  38.     #lease-expiration-duration-in-seconds: 2

8、测试

添加网关前
http://localhost:8001/payment/get/31

添加网关后
http://localhost:9527/payment/get/31

9、YML配置说明

image.png

Gayway网关路由配置有两种方法