页面报错：

在这里插入图片描述

报错详细信息：

freemarker.core.InvalidReferenceException: The following has evaluated to null or missing:
==> replica.key  [in template "eureka/navbar.ftlh" at line 68, column 62]

----
Tip: It's the step after the last dot that caused this error, not those before it.
----
Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
----

----
FTL stack trace ("~" means nesting-related):
	- Failed at: ${replica.key}  [in template "eureka/navbar.ftlh" at line 68, column 60]
	- Reached through: #include "navbar.ftlh"  [in template "eureka/status.ftlh" at line 22, column 7]
----
	at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.EvalUtil.coerceModelToTextualCommon(EvalUtil.java:479) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:401) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:370) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:100) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.DollarVariable.accept(DollarVariable.java:63) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visit(Environment.java:367) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.IteratorBlock$IterationContext.executedNestedContentForCollOrSeqListing(IteratorBlock.java:321) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.IteratorBlock$IterationContext.executeNestedContent(IteratorBlock.java:271) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.IteratorBlock$IterationContext.accept(IteratorBlock.java:244) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visitIteratorBlock(Environment.java:643) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:108) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.IteratorBlock.accept(IteratorBlock.java:94) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visit(Environment.java:331) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visit(Environment.java:337) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.include(Environment.java:2694) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Include.accept(Include.java:171) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visit(Environment.java:331) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visit(Environment.java:337) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.process(Environment.java:310) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.template.Template.process(Template.java:383) ~[freemarker-2.3.29.jar:2.3.29]
	at org.springframework.web.servlet.view.freemarker.FreeMarkerView.processTemplate(FreeMarkerView.java:391) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.view.freemarker.FreeMarkerView.doRender(FreeMarkerView.java:304) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.view.freemarker.FreeMarkerView.renderMergedTemplateModel(FreeMarkerView.java:255) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:179) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:316) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1373) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1118) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108) ~[spring-boot-actuator-2.2.4.RELEASE.jar:2.2.4.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1598) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]

2020-02-20 15:19:34.155 ERROR 31456 --- [io-10086-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is freemarker.core.InvalidReferenceException: The following has evaluated to null or missing:
==> replica.key  [in template "eureka/navbar.ftlh" at line 68, column 62]

----
Tip: It's the step after the last dot that caused this error, not those before it.
----
Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
----

----
FTL stack trace ("~" means nesting-related):
	- Failed at: ${replica.key}  [in template "eureka/navbar.ftlh" at line 68, column 60]
	- Reached through: #include "navbar.ftlh"  [in template "eureka/status.ftlh" at line 22, column 7]
----] with root cause

freemarker.core.InvalidReferenceException: The following has evaluated to null or missing:
==> replica.key  [in template "eureka/navbar.ftlh" at line 68, column 62]

----
Tip: It's the step after the last dot that caused this error, not those before it.
----
Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
----

----
FTL stack trace ("~" means nesting-related):
	- Failed at: ${replica.key}  [in template "eureka/navbar.ftlh" at line 68, column 60]
	- Reached through: #include "navbar.ftlh"  [in template "eureka/status.ftlh" at line 22, column 7]
----
	at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.EvalUtil.coerceModelToTextualCommon(EvalUtil.java:479) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:401) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:370) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:100) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.DollarVariable.accept(DollarVariable.java:63) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visit(Environment.java:367) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.IteratorBlock$IterationContext.executedNestedContentForCollOrSeqListing(IteratorBlock.java:321) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.IteratorBlock$IterationContext.executeNestedContent(IteratorBlock.java:271) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.IteratorBlock$IterationContext.accept(IteratorBlock.java:244) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visitIteratorBlock(Environment.java:643) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:108) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.IteratorBlock.accept(IteratorBlock.java:94) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visit(Environment.java:331) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visit(Environment.java:337) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.include(Environment.java:2694) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Include.accept(Include.java:171) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visit(Environment.java:331) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.visit(Environment.java:337) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.core.Environment.process(Environment.java:310) ~[freemarker-2.3.29.jar:2.3.29]
	at freemarker.template.Template.process(Template.java:383) ~[freemarker-2.3.29.jar:2.3.29]
	at org.springframework.web.servlet.view.freemarker.FreeMarkerView.processTemplate(FreeMarkerView.java:391) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.view.freemarker.FreeMarkerView.doRender(FreeMarkerView.java:304) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.view.freemarker.FreeMarkerView.renderMergedTemplateModel(FreeMarkerView.java:255) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:179) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:316) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1373) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1118) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108) ~[spring-boot-actuator-2.2.4.RELEASE.jar:2.2.4.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1598) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
	at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]

2020-02-20 15:19:34.210 ERROR 31456 --- [io-10086-exec-1] s.e.ErrorMvcAutoConfiguration$StaticView : Cannot render error page for request [/] and exception [The following has evaluated to null or missing:
==> replica.key  [in template "eureka/navbar.ftlh" at line 68, column 62]

----
Tip: It's the step after the last dot that caused this error, not those before it.
----
Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
----

----
FTL stack trace ("~" means nesting-related):
	- Failed at: ${replica.key}  [in template "eureka/navbar.ftlh" at line 68, column 60]
	- Reached through: #include "navbar.ftlh"  [in template "eureka/status.ftlh" at line 22, column 7]
----] as the response has already been committed. As a result, the response may have the wrong status code.

报错原因：

本人是因为yml配置信息的错误，检查细节，更改yml的配置信息即可

本人yml配置：

server:
  port: 8088
spring:
  application:
    name: ly-registry
eureka:
  client:
    service-url: # EurekaServer的地址，现在是自己的地址，如果是集群，需要加上其它Server的地址。
      defaultZone: http://127.0.0.1:8088/eureka
    register-with-eureka: false # 是否注册自己的信息到EurekaServer，默认是true
    fetch-registry: false # 是否拉取其它服务的信息，默认是true
  server:
    eviction-interval-timer-in-ms: 60000 # 扫描失效服务的间隔时间（缺省为60*1000ms）
# eureka # spring boot
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