问题描述
在localhost中使用webclient时出现此错误,您能帮我吗?
ERROR org.springframework.boot.autoconfigure.web.reactive.error.AbstractErrorWebExceptionHandler - [0e1ef5cd-1] 500 Server Error for HTTP G
ET "/product/spec/template/posts"
product | io.netty.channel.AbstractChannel$AnnotatedConnectException: finishConnect(..) Failed: Connection refused: localhost/127.0.0.1:8090
product | Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException:
product | Error has been observed at the following site(s):
product | |_ checkpoint ⇢ Request to GET http://localhost:8090/retailer/retailer/posts/12 [DefaultWebClient]
product | |_ checkpoint ⇢ Handler com.zucco.tech.hm.service.product.controller.ProductSpecTemplateController#posts() [dispatcherHandler]
product | |_ checkpoint ⇢ org.springframework.boot.actuate.metrics.web.reactive.server.MetricsWebFilter [DefaultWebFilterChain]
product | |_ checkpoint ⇢ HTTP GET "/product/spec/template/posts" [ExceptionHandlingWebHandler]
product | Stack trace:
product | Caused by: java.net.ConnectException: finishConnect(..) Failed: Connection refused
product | at io.netty.channel.unix.Errors.throwConnectException(Errors.java:124) ~[netty-transport-native-unix-common-4.1.51.Final.jar!/:4.1.51.Final]
解决方法
连接被拒绝意味着没有服务器在address:port上侦听。您可以使用netstat -tulpen
检查在哪个地址上打开了哪些端口。
不,我们不能通过localhost直接调用,这里的术语是“容器调用容器”,所以,我们应该通过容器名称一起调用。
- 像这样更改 docker-compose:
order-service:
build: docker/order-service
container_name: order-service
ports:
- 8082:8080
- 然后,在客户端服务中,我们只需像下面这样定义主机:
私有字符串主机名= "http://order-service:8080/order-service/welcome";
可以看到,当我们通过浏览器(真实客户端)调用订单服务时,我们通过扩展端口(8082)调用,但是如果容器调用容器,我们应该通过它s container
的名称和它来调用s 端口(8080)。