Spring Cloud Gateway 2 断言

Spring Cloud Gateway 断言

Spring Cloud Gateway提供了很多断言设置,当http请求进入Spring Cloud Gateway时,网关中的路由断言工厂会根基配置的路由规则,对http请求进行断言匹配,匹配成功的请求进行路由转发,失败的直接返回是错误信息。

以下是常用的断言工厂

After

设定一个UTC时间,此时间之后的请求会成功,此时间之前的请求会404

UTC 时间生成:

//比当前时间早一小时的时间
String minTime = ZonedDateTime.now().minusHours(1).format(DateTimeFormatter.ISO_ZONED_DATE_TIME);
System.out.println(minTime);

java配置

@Bean
public RouteLocator customRoteLocator(RouteLocatorBuilder builder) {
    //生成一个比当前时间早一个小时的UTC时间
    ZonedDateTime minusTime = LocalDateTime.now().minusHours(1).atZone(ZoneId.systemDefault());
    return builder.routes()
            .route("after_route", predicateSpec -> predicateSpec.after(minusTime)
                    .uri("http://baidu.com"))
            .build();
}

yml配置

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

Before

设定一个时间,此时间之前的请求会成功,此时间之后的请求会404

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

Between

设定一个时间区间,此时间区间内的请求会成功

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]

设置两个参数:cookie的key和value,当请求中携带一条此信息时,请求成功;

spring:
  cloud:
    gateway:
      routes:
      - id: after_route
        uri: https://example.org
        predicates:
        - Cookie=mycookie,mycookievalue

配置多个值:

pring:
  cloud:
    gateway:
      routes:
      - id: after_route
        uri: https://example.org
        predicates:
        - name: Cookie
          args:
            name: mycookie
            regexp: mycookievalue

设置两个参数:header的key和value,当请求携带匹配信息时,请求成功

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

Host

设定一个主机名,当请求信息来自此主机时,请求成功;

spring:
  cloud:
    gateway:
      routes:
      - id: host_route
        uri: https://example.org
        predicates:
        - Host=**.somehost.org,**.anotherhost.org

Method

指定请求的方法:如POST,GET

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

Path

指定路径下的请求,进行转发

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

Query

指定一个请求参数的key,符合条件的进行转发

如:http://localhost:8080/hello?key=value 中的key

spring:
  cloud:
    gateway:
      routes:
      - id: query_route
        uri: https://example.org
        predicates:
        - Query=key
spring:
  cloud:
    gateway:
      routes:
      - id: query_route
        uri: https://example.org
        predicates:
        - Query=red, gree.

RemoteAddr

指定ip或ip段,符合条件的转发成功

spring:
  cloud:
    gateway:
      routes:
      - id: remoteaddr_route
        uri: https://example.org
        predicates:
        - RemoteAddr=192.168.1.1/24
posted @ 2020-06-15 16:54  路迢迢  阅读(1068)  评论(0编辑  收藏  举报