春云网关返回空响应

Question

我正在尝试使用Spring Cloud Gateway来路由我的微服务，但是即使微服务正常工作，网关路由也会返回空响应。我的微服务是一个简单的应用程序，它运行在端口5861上。在经过特定路径的路由试验后，我通过预测所有情况来确保它路由，从而简单地将我的网关路由到它。

这是我的网关配置文件:

spring:
cloud:
gateway:
routes:
- id: product_service
uri: localhost:5861/
predicates:
- Path=/product-service/**

运行两个服务并击中它们后，我的微服务返回正确的响应:

$ curl -v http://localhost:5861/product/
*   Trying 127.0.0.1:5861...
* Connected to localhost (127.0.0.1) port 5861 (#0)
> GET /product/ HTTP/1.1
> Host: localhost:5861
> User-Agent: curl/7.81.0
> Accept: */*
> 
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 
< Content-Type: application/json
< Transfer-Encoding: chunked
< Date: Wed, 01 Jun 2022 19:41:40 GMT
< 
* Connection #0 to host localhost left intact
[{"id":1,"name":"Apple","price":2},{"id":2,"name":"Apple","price":2},{"id":3,"name":"Apple","price":2}]

但是如果我尝试从我的API网关执行此操作，它不会返回任何内容，如果我尝试从浏览器访问它，则会出现空白页面。

$ curl -v  http://localhost:5860/product-service/product
*   Trying 127.0.0.1:5860...
* Connected to localhost (127.0.0.1) port 5860 (#0)
> GET /product-service/product HTTP/1.1
> Host: localhost:5860
> User-Agent: curl/7.81.0
> Accept: */*
> 
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< content-length: 0
< 
* Connection #0 to host localhost left intact

有人可以帮助我什么我错过了?我想从网关得到相同的响应。

Answer 1

看起来您的应用程序暴露了/product/端点。从网关，您正在尝试从/product-service/product重定向到服务的/product/。默认情况下，spring云网关按原样重定向到uri。所以目前，我认为http://localhost:5860/product-service/product被重定向到http://localhost:5861/product-service/product。

如果需要从product-service的product-service/**重定向到/**，则使用RewritePath过滤器。

下面是一个可能对你有用的用法示例:

spring:
cloud:
gateway:
routes:
- id: product_service
uri: localhost:5861/
predicates:
- Path=/product-service/**
filters:
- RewritePath=/product-service/(?<segment>/?.*),${segment}

Answer 2

工作更新:

spring:
cloud:
gateway:
routes:
- id: product_service
uri: http://localhost:5861/
predicates:
- Path=/product