Gateway网关---Predicate断言配置

一时失言乱红尘 2023-02-22 03:41 14阅读 0赞

### After ###

判断时间在`After`配置的时间之后规则才生效

spring:
      cloud:
        gateway:
          routes:
          - id: after_route
            uri: https://example.org
            predicates:
            - After=2017-01-20T17:42:47.789-07:00[America/Denver]

### Before ###

判断在`Before`之前路由配置才生效

spring:
      cloud:
        gateway:
          routes:
          - id: before_route
            uri: https://example.org
            predicates:
            - Before=2017-01-20T17:42:47.789-07:00[America/Denver]

### Between ###

在时间之内规则生效

spring:
      cloud:
        gateway:
          routes:
          - id: between_route
            uri: https://example.org
            predicates:
            - Between=2017-01-20T17:42:47.789-07:00[America/Denver], 2017-01-21T17:42:47.789-07:00[America/Denver]

--------------------

### Cookie ###

带cookie，名字和正则表达式  
cookie中需要带有key并且符合value的正则表达式。不带cookie会404

spring:
      cloud:
        gateway:
          routes:
          - id: cookie_route
            uri: https://example.org
            predicates:
            - Cookie=key, value

### Header ###

请求头文件中带key的名称时 X-Request-Id 值是正则表达式\\d+（数字）  
其他信息自己添加

spring:
      cloud:
        gateway:
          routes:
          - id: header_route
            uri: https://example.org
            predicates:
            - Header=X-Request-Id, \d+

### Host ###

主机是yumbo.top或者huashengshu.top的子域名的规则生效，如果不带这个信息，则会返回404  
头文件中设置 Host

spring:
      cloud:
        gateway:
          routes:
          - id: host_route
            uri: https://example.org
            predicates:
            - Host=**.yumbo.top,**.huashengshu.top

### Method ###

请求方法要是配置中设置的GET或者POST路由才会生效

spring:
      cloud:
        gateway:
          routes:
          - id: method_route
            uri: https://example.org
            predicates:
            - Method=GET,POST

### Path ###

请求路径要符合Path设置的规则路由才生效

spring:
      cloud:
        gateway:
          routes:
          - id: path_route
            uri: https://example.org
            predicates:
            - Path=/red/{ segment},/blue/{ segment}

### Query ###

请求参数要包含green参数路由才生效

spring:
      cloud:
        gateway:
          routes:
          - id: query_route
            uri: https://example.org
            predicates:
            - Query=green

### RemoteAddr ###

如果请求的远程地址是192.168.1.10，则此路由匹配。

spring:
      cloud:
        gateway:
          routes:
          - id: remoteaddr_route
            uri: https://example.org
            predicates:
            - RemoteAddr=192.168.1.1/24

### Weight ###

这条路径将把80%的流量转发到weighthigh.org，并将20%的流量转发到weighlow.org  
权重路由，按照权重分流量

spring:
      cloud:
        gateway:
          routes:
          - id: weight_high
            uri: https://weighthigh.org
            predicates:
            - Weight=group1, 8
          - id: weight_low
            uri: https://weightlow.org
            predicates:
            - Weight=group1, 2

更多详情去官查看文档[https://cloud.spring.io/spring-cloud-gateway/2.2.x/reference/html/\#gateway-request-predicates-factories][https_cloud.spring.io_spring-cloud-gateway_2.2.x_reference_html_gateway-request-predicates-factories]

[https_cloud.spring.io_spring-cloud-gateway_2.2.x_reference_html_gateway-request-predicates-factories]: https://cloud.spring.io/spring-cloud-gateway/2.2.x/reference/html/#gateway-request-predicates-factories