如何执行Zuul网关动态路由

注意事项

Zuul网关在自动路由模式下，动态路由可以工作

Zuul网关动态路由配置

① 精简配置

[
    {
        "id": "route0",
        "serviceId": "discovery-guide-service-a",
        "path": "/discovery-guide-service-a/**"
    },
    {
        "id": "route1",
        "serviceId": "discovery-guide-service-a",
        "path": "/x/**"
    },
    {
        "id": "route2",
        "serviceId": "discovery-guide-service-a",
        "path": "/y/**"
    }
]

如果希望一个服务只映射一个动态路由路径，则不需要id，可以简化为

[
    {
        "serviceId": "discovery-guide-service-a",
        "path": "/x/**"
    }
]

② 完整配置

[
    {
        "id": "route0",
        "serviceId": "discovery-guide-service-a",
        "path": "/discovery-guide-service-a/**",
        "url": null,
        "stripPrefix": true,
        "retryable": null,
        "sensitiveHeaders": [],
        "customSensitiveHeaders": false
    },
    {
        "id": "route1",
        "serviceId": "discovery-guide-service-a",
        "path": "/x/**",
        "url": null,
        "stripPrefix": true,
        "retryable": null,
        "sensitiveHeaders": [],
        "customSensitiveHeaders": false
    },
    {
        "id": "route2",
        "serviceId": "discovery-guide-service-a",
        "path": "/y/**",
        "url": null,
        "stripPrefix": true,
        "retryable": null,
        "sensitiveHeaders": [],
        "customSensitiveHeaders": false
    }
]

Zuul网关订阅配置中心

网关订阅配置中心的使用方式，如下

• Key为
  • Nacos、Redis、Zookeeper配置中心，Group为{group}，DataId为{网关serviceId}-dynamic-route
  • Apollo、Consul、Etcd配置中心，Key的格式为{group}-{网关serviceId}-dynamic-route
  • {group}为注册中心元数据group值
• Value参考Zuul网关动态路由配置

支持如下开关开启该动能，默认是关闭的

# 开启和关闭网关订阅配置中心的动态路由策略。缺失则默认为false
spring.application.strategy.zuul.dynamic.route.enabled=true

配置中心配置的网关动态路由推送到网关后，网关会自动根据已经存在的路由表进行判断后实施增删改操作，而不是全部清空后再全部插入，这样有助于提高性能和安全性。网关控制台上会打印出如下日志

----- Zuul Dynamic Routes Update Information -----
Total count=3
Added count=1
Modified count=1
Deleted count=1
--------------------------------------------------

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