Eureka注册服时报错：Root name (‘timestamp‘) does not match expected (‘applications‘) for type `org.springfr

搭环境时搭建Eureka的集群版，EurekaServer启动都正常，服务注册时报错：

Root name ('timestamp') does not match expected ('applications') for type `org.springframework.cloud.netflix.eureka.http.EurekaApplications`

2021-11-25 22:23:35.013  INFO 2248 --- [  restartedMain] c.n.d.s.t.d.RedirectingEurekaHttpClient  : Request execution error. endpoint=DefaultEndpoint{ serviceUrl='http://eureka2.com:7002/eureka02/}, exception=Error while extracting response for type [class org.springframework.cloud.netflix.eureka.http.EurekaApplications] and content type [application/json]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Root name ('timestamp') does not match expected ('applications') for type `org.springframework.cloud.netflix.eureka.http.EurekaApplications`; nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Root name ('timestamp') does not match expected ('applications') for type `org.springframework.cloud.netflix.eureka.http.EurekaApplications`at [Source: (PushbackInputStream); line: 1, column: 2] (through reference chain: org.springframework.cloud.netflix.eureka.http.EurekaApplications["timestamp"]) stacktrace=org.springframework.web.client.RestClientException: Error while extracting response for type [class org.springframework.cloud.netflix.eureka.http.EurekaApplications] and content type [application/json]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Root name ('timestamp') does not match expected ('applications') for type `org.springframework.cloud.netflix.eureka.http.EurekaApplications`; nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Root name ('timestamp') does not match expected ('applications') for type `org.springframework.cloud.netflix.eureka.http.EurekaApplications`at [Source: (PushbackInputStream); line: 1, column: 2] (through reference chain: org.springframework.cloud.netflix.eureka.http.EurekaApplications["timestamp"])at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:120)at org.springframework.web.client.RestTemplate$ResponseEntityResponseExtractor.extractData(RestTemplate.java:1037)at org.springframework.web.client.RestTemplate$ResponseEntityResponseExtractor.extractData(RestTemplate.java:1020)at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:778)at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:711)at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:602)at org.springframework.cloud.netflix.eureka.http.RestTemplateEurekaHttpClient.getApplicationsInternal(RestTemplateEurekaHttpClient.java:145)at org.springframework.cloud.netflix.eureka.http.RestTemplateEurekaHttpClient.getApplications(RestTemplateEurekaHttpClient.java:135)at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137)at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.executeOnNewServer(RedirectingEurekaHttpClient.java:121)at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.execute(Redirecting

网上搜了一下发现都说是Eureka加了安全认证（SpringSecurity）导致的，可以使用以下方式解决，但我用下面这种方案并没有解决：

@EnableWebSecurity
@Configuration
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {@Overrideprotected void configure(HttpSecurity http) throws Exception {http.csrf().disable(); //关闭csrfsuper.configure(http); //开启认证}
}

首先我自己本身并没有在项目中引入SpringSecurity相关的Jar，所以是没有WebSecurityConfigurerAdapter相关的类的，而且我尝试引入了SpringSecurity也没办法解决。最后当我仔细对比我的集群版和单机Eureka服务的配置区别，最终发现原来错在application.yml文件中。

最终解决：Eureka服务的defaultZone地址必须要以/eureka结尾，不能以其他内容结尾（无论Server端还是Client端都是）。

错误 application.yml 示例：

eureka:client:service-url:defaultZone: http://eureka1.com:7001/eureka01,http://eureka2.com:7002/eureka02register-with-eureka: truefetch-registry: true

正确的 application.yml 示例：

eureka:client:service-url:defaultZone: http://eureka1.com:7001/eureka,http://eureka2.com:7002/eurekaregister-with-eureka: truefetch-registry: true

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Eureka注册服时报错：Root name (‘timestamp‘) does not match expected (‘applications‘) for type `org.springfr

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