尤里卡服务器调用API时出现异常

Question

我使用 spring boot 创建了微服务，在从本地服务器调用 URL http://localhost:8765/CURRENCY-EXCHANGE/currency-exchange/from/USD/to/INR 时出现异常

异常详情：

java.net.UnknownHostException: failed to resolve 'DESKTOP-HG47DMC' after 2 queries 
at io.netty.resolver.dns.DnsResolveContext.finishResolve(DnsResolveContext.java:1013) ~[netty-resolver-dns-4.1.63.Final.jar:4.1.63.Final]
Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: Error has been observed at the following site(s):
|_ checkpoint ⇢ org.springframework.cloud.gateway.filter.WeightCalculatorWebFilter [DefaultWebFilterChain]
|_ checkpoint ⇢ org.springframework.boot.actuate.metrics.web.reactive.server.MetricsWebFilter [DefaultWebFilterChain]
|_ checkpoint ⇢ HTTP GET "/CURRENCY-EXCHANGE/currency-exchange/from/USD/to/INR" [ExceptionHandlingWebHandler] Stack trace:
    at io.netty.resolver.dns.DnsResolveContext.finishResolve(DnsResolveContext.java:1013) ~[netty-resolver-dns-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.resolver.dns.DnsResolveContext.tryToFinishResolve(DnsResolveContext.java:966) ~[netty-resolver-dns-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.resolver.dns.DnsResolveContext.query(DnsResolveContext.java:414) ~[netty-resolver-dns-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.resolver.dns.DnsResolveContext.onResponse(DnsResolveContext.java:625) ~[netty-resolver-dns-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.resolver.dns.DnsResolveContext.access$400(DnsResolveContext.java:63) ~[netty-resolver-dns-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.resolver.dns.DnsResolveContext$2.operationComplete(DnsResolveContext.java:458) ~[netty-resolver-dns-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:578) [netty-common-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:571) [netty-common-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:550) [netty-common-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:491) [netty-common-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:616) [netty-common-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:605) [netty-common-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:104) [netty-common-4.1.63.Final.jar:4.1.63.Final]
    at io.netty.resolver.dns.DnsQueryContext.trySuccess(DnsQueryContext.java:201) ~[netty-resolver-dns-4.1.63.Final.jar:4.1.63.Final]

这是我的 application.properties

spring.application.name = api-gateway
server.port = 8765
eureka.client.serviceUrl.defaultZone =http://localhost:8761/eureka
spring.cloud.gateway.discovery.locator.enabled= true

Answer 1

将此代码 sn-p 添加到您的微服务的 application.properties 文件中。

eureka.instance.hostname=localhost