provider-8001
provider-8002
gateway-9527
eureka-7001
依赖,注意不要加web依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>
yml
server:
port: 9527
spring:
application:
name: gateway-9527
请求localhost:9527/get会转发到http://httpbin.org:80 ,并且添加了一个请求头
@Bean
public RouteLocator myRoutes(RouteLocatorBuilder builder) {
return builder.routes()
.route(p -> p
.path("/get")
.filters(f -> f.addRequestHeader("Hello", "World"))
.uri("http://httpbin.org:80"))
.build();
}
按照上面的例子
@Bean
public RouteLocator myRoutes(RouteLocatorBuilder builder) {
return builder.routes()
.route(p -> p
.path("/get1/**")
.uri("http://localhost:8001"))
.route(p -> p
.path("/get2/**")
.uri("http://localhost:8002"))
.build();
}
访问localhost:9527/get1/abc 匹配localhost:8001/get1/abc,
localhost:9527/get1/abc 不匹配 localhost:8001/abc
访问localhost:9527/get2/def 匹配localhost:8001/get2/def,
localhost:9527/get2/def 不匹配 localhost:8001/def
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
配置的路由规则为 /get/** 路由到 provider/get/**
方式一:通过yml配置
server:
port: 9527
spring:
application:
name: gateway-9587
cloud:
gateway:
routes:
- id: route_provider #随便起
uri: lb://provider # uri以lb://开头(lb代表从注册中心获取服务),后面接的就是你需要转发到的服务名称
predicates:
- Path=/get/**
eureka:
client:
service-url:
defaultZone: http://localhost:7001/eureka/
方式二:通过Bean方式
@Bean
public RouteLocator myRoutes(RouteLocatorBuilder builder) {
return builder.routes()
.route(p -> p
.path("/get/**")
.uri("lb://provider")
.order(0)
.id("route_provider ")
)
.build();
}
server:
port: 9527
spring:
application:
name: gateway-9587
eureka:
client:
service-url:
defaultZone: http://localhost:7001/eureka/
@EnableEurekaClient
http://localhost:9527/get/123123 就请求到 http://provider/get/123123
在URL路径前面添加一部分的前缀
server:
port: 9527
spring:
cloud:
gateway:
routes:
- id: route_provider123123 #随便起
uri: lb://provider # uri以lb://开头(lb代表从注册中心获取服务),后面接的就是你需要转发到的服务名称
predicates:
- Path=/get/**
filters:
- PrefixPath=/mypath #在URL路径前面添加一部分的前缀
或者
@Bean
public RouteLocator myRoutes(RouteLocatorBuilder builder) {
return builder.routes()
.route(p -> p
.path("/get/**")
.filters(f -> f.prefixPath("/mypath"))
.uri("lb://provider")
.order(0)
.id("route_provider ")
)
.build();
}
访问 localhost:9527/get/abc 路由到 provider/mypath/get/abc
去掉部分URL路径
server:
port: 9527
spring:
application:
name: gateway-9587
cloud:
gateway:
routes:
- id: route_provider123123 #随便起
uri: lb://provider # uri以lb://开头(lb代表从注册中心获取服务),后面接的就是你需要转发到的服务名称
predicates:
- Path=/abc/get/**
filters:
- StripPrefix=1 # 表示在转发时去掉path中的abc
或者
@Bean
public RouteLocator myRoutes(RouteLocatorBuilder builder) {
return builder.routes()
.route(p -> p
.path("/abc/get/**")
.filters(f -> f.stripPrefix(1))
.uri("lb://provider")
.order(0)
.id("route_provider ")
)
.build();
}
访问http://localhost:9527/abc/get/123 路由到 provider/get/123
- StripPrefix=2
Path=/abc/def/get/**
访问 http://localhost:9527/abc/def/get/123路由到 provider/get/123