1. Gateway
网关：负责请求的路由、转发、身份校验。
2. Spring Cloud Gateway
- 依赖
<!--网关--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-gateway</artifactId></dependency><!--nacos 服务注册发现--><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><!--openFeign--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency><!--负载均衡器--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-loadbalancer</artifactId></dependency><!--OK http 的依赖 --><dependency><groupId>io.github.openfeign</groupId><artifactId>feign-okhttp</artifactId></dependency>
- yaml配置
server:port: 8080
spring:cloud:nacos:server-addr: ***:8848gateway:routes:- id: item-serviceuri: lb://item-servicepredicates:- Path=/items/**,/search/**- id: cart-serviceuri: lb://cart-servicepredicates:- Path=/carts/**- id: user-serviceuri: lb://user-servicepredicates:- Path=/users/**,/addresses/**- id: trade-serviceuri: lb://trade-servicepredicates:- Path=/orders/**application:name: gateway
3. 断言
4. 过滤器
spring:cloud:nacos:server-addr: ***:8848gateway:routes:- id: item-serviceuri: lb://item-servicepredicates:- Path=/items/**,/search/**filters:- AddRequestHeader=truth, no one- id: cart-serviceuri: lb://cart-servicepredicates:- Path=/carts/**- id: user-serviceuri: lb://user-servicepredicates:- Path=/users/**,/addresses/**- id: trade-serviceuri: lb://trade-servicepredicates:- Path=/orders/**default-filters:- AddRequestHeader=truth, no one
