摘要: 原创出处 http://www.iocoder.cn/Spring-Cloud-Gateway/route-definition-locator-properties/ 「芋道源码」欢迎转载,保留摘要,谢谢!
关注 微信公众号:【芋道源码】 有福利:
本文主要对 PropertiesRouteDefinitionLocator 的源码实现 。
org.springframework.cloud.gateway.config.PropertiesRouteDefinitionLocator
,从 配置文件 ( 例如,YML / Properties 等 ) 读取路由配置。代码如下 :
public class PropertiesRouteDefinitionLocator implements RouteDefinitionLocator{ private final GatewayProperties properties; public PropertiesRouteDefinitionLocator(GatewayProperties properties){ this.properties = properties; } @Override public Flux<RouteDefinition> getRouteDefinitions(){ return Flux.fromIterable(this.properties.getRoutes()); } }
#getRouteDefinitions()
方法,从 GatewayProperties 获取路由配置数组。 org.springframework.cloud.gateway.config.GatewayProperties
,从配置文件 读取 :
GatewayProperties 代码如下 :
@ConfigurationProperties("spring.cloud.gateway") @Validated public class GatewayProperties{ /** * List of Routes */ @NotNull @Valid private List<RouteDefinition> routes = new ArrayList<>(); /** * List of filter definitions that are applied to every route. */ private List<FilterDefinition> defaultFilters = loadDefaults(); private ArrayList<FilterDefinition> loadDefaults(){ ArrayList<FilterDefinition> defaults = new ArrayList<>(); FilterDefinition definition = new FilterDefinition(); definition.setName(normalizeFilterName(RemoveNonProxyHeadersGatewayFilterFactory.class)); defaults.add(definition); return defaults; } }
routes
属性,路由配置。通过 spring.cloud.gateway.routes
配置。以 YAML 配置文件举例子 :
spring: cloud: gateway: routes: # ===================================== - host_example_to_httpbin=${test.uri}, Host=**.example.org # ===================================== - id: host_foo_path_headers_to_httpbin uri: ${test.uri} predicates: - Host=**.foo.org - Path=/headers - Method=GET - Header=X-Request-Id, /d+ - Query=foo, ba. - Query=baz - Cookie=chocolate, ch.p - After=1900-01-20T17:42:47.789-07:00[America/Denver] filters: - AddResponseHeader=X-Response-Foo, Bar # ===================================== - id: add_request_header_test uri: ${test.uri} predicates: - Host=**.addrequestheader.org - Path=/headers filters: - AddRequestHeader=X-Request-Foo, Bar
defaultFilters
属性, 默认 过滤器配置。通过 spring.cloud.gateway.default-filters
配置。以 YAML 配置文件举例子 :
spring: cloud: gateway: default-filters: - AddResponseHeader=X-Response-Default-Foo, Default-Bar - PrefixPath=/httpbin
TODO 【3017】 与 Spring Cloud Config 结合
胖友,分享一波朋友圈可好!