java.lang.IllegalStateException: Service id not legal hostname

服務名不可匹配，非法的的問題： java.lang.IllegalStateException: Service id not legal hostname (medical_ocr.medical_ocr_app) at org.springframework.util.Assert.state(Assert.java:73) ~[spring-core-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.cloud.openfeign.FeignClientsRegistrar.getName(FeignClientsRegistrar.java:237) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.cloud.openfeign.FeignClientsRegistrar.registerFeignClient(FeignClientsRegistrar.java:172) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.cloud.openfeign.FeignClientsRegistrar.registerFeignClients(FeignClientsRegistrar.java:158) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.cloud.openfeign.FeignClientsRegistrar.registerBeanDefinitions(FeignClientsRegistrar.java:83) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.lambda$loadBeanDefinitionsFromRegistrars$1(ConfigurationClassBeanDefinitionReader.java:358) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE] at java.util.LinkedHashMap.forEach(LinkedHashMap.java:676) ~[?:1.8.0_73]

使用微服務spring cloud中的@FeignClient，定義的名稱不能帶下劃線"_",屬於非字符
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