Spring Cloud全解析：网关之GateWay断言
GateWay断言
断言Predicate
gateWay网关中提供了多种断言方式
After断言
Loaded RoutePredicateFactory [After]
After匹配在当前日期时间之后发生的请求
spring:cloud:gateway:routes:- id: after_routeuri: https://example.orgpredicates:- After=2021-09-06T16:02:25.738+08:00[Asia/Shanghai]
Before断言
Loaded RoutePredicateFactory [Before]
Before匹配在当前日期时间之前发生的请求
spring:cloud:gateway:routes:- id: before_routeuri: https://example.orgpredicates:- Before=2021-09-06T16:02:25.738+08:00[Asia/Shanghai]
Between断言
Loaded RoutePredicateFactory [Between]
Between匹配在两个日期之间发生的请求
spring:cloud:gateway:routes:- id: between_routeuri: https://example.orgpredicates:- Between=2021-09-06T16:02:25.738+08:00[Asia/Shanghai], 2021-09-07T16:02:25.738+08:00[Asia/Shanghai]
Cookie断言
Loaded RoutePredicateFactory [Cookie]
Cookie会根据cookie的name以及值的正则表达式进行匹配
spring:cloud:gateway:routes:- id: cookie_routeuri: https://example.orgpredicates:- Cookie=userName, zhangsan # userName为Cookie的name，zhangsan为cookie的值的正则表达式
Header断言
Loaded RoutePredicateFactory [Header]
Header是匹配请求头的name以及值的正则表达式进行匹配
spring:cloud:gateway:routes:- id: header_routeuri: https://example.orgpredicates:- Header=X-Request-Id, \d+ #X-Request-Id是请求头的name，\d+为请求头所对应的值的正则表达式
Host断言
Loaded RoutePredicateFactory [Host]
Host进行域名匹配，Ant模式匹配
spring:cloud:gateway:routes:- id: host_routeuri: https://example.orgpredicates:- Host=**.somehost.org,**.anotherhost.org
Method断言
Loaded RoutePredicateFactory [Method]
Method 匹配HTTP方法
spring:cloud:gateway:routes:- id: method_routeuri: https://example.orgpredicates:- Method=GET,POST
Path断言
Loaded RoutePredicateFactory [Path]
Path 进行路径匹配
spring:cloud:gateway:routes:- id: host_routeuri: https://example.orgpredicates:- Path=/foo/{segment},/bar/{segment}
Query断言
Loaded RoutePredicateFactory [Query]
Query 查询参数匹配
spring:cloud:gateway:routes:- id: query_routeuri: https://example.orgpredicates:- Query=foo, ba. #如果查询参数为foo并且其值符合ba.正则表达式
ReadBodyPredicateFactory断言
Loaded RoutePredicateFactory [ReadBodyPredicateFactory]
RemoteAddr断言
Loaded RoutePredicateFactory [RemoteAddr]
RemoteAddr 远程地址匹配
spring:cloud:gateway:routes:- id: remoteaddr_routeuri: https://example.orgpredicates:- RemoteAddr=192.168.1.1/24
Weight断言
Loaded RoutePredicateFactory [Weight]
Weight 权重匹配，接收group和weight两个参数，权重是按照组进行计算的
spring:cloud:gateway:routes:- id: weight_highuri: https://weighthigh.orgpredicates:- Weight=group1, 8- id: weight_lowuri: https://weightlow.orgpredicates:- Weight=group1, 2 #group1是组名， 会有80%的请求访问 https://weighthigh.org，20%的请求访问https://weightlow.org
CloudFoundryRouteService断言
Loaded RoutePredicateFactory [CloudFoundryRouteService]
配置方式
gateway配置断言有两种方式
以Cookie断言为例，Cookie断言的配置类如下
public static class Config {@NotEmptyprivate String name;@NotEmptyprivate String regexp;public String getName() {return name;}public Config setName(String name) {this.name = name;return this;}public String getRegexp() {return regexp;}public Config setRegexp(String regexp) {this.regexp = regexp;return this;}}
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简短配置
断言名称和参数之间是
=，多个参数之间,相隔，按照定义的顺序依次赋值spring:cloud:gateway:routes:- id: after_routeuri: https://example.orgpredicates:- Cookie=mycookie,mycookievalue -
全面扩展参数
每个参数都使用
字段名:字段值表示spring:cloud:gateway:routes:- id: after_routeuri: https://example.orgpredicates:- name: Cookieargs:name: mycookieregexp: mycookievalue
https://zhhll.icu/2021/框架/微服务/springcloud/网关/GateWay/2.GateWay断言/