spring clound openFeign & Eureka 报错 Load balancer does not have available server for client

问题：

com.netflix.client.ClientException: Load balancer does not have available server for client: user
	at com.netflix.loadbalancer.LoadBalancerContext.getServerFromLoadBalancer(LoadBalancerContext.java:483) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]
	at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:184) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]
	at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:180) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]
	at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]

com.netflix.client.ClientException: Load balancer does not have available server for client: user

at com.netflix.loadbalancer.LoadBalancerContext.getServerFromLoadBalancer(LoadBalancerContext.java:483) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]

at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:184) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]

at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:180) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]

at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]

[crayon-67e… Read More

spring openfeign RequestParam.value() was empty on parameter 0

问题：

Caused by: java.lang.IllegalStateException: RequestParam.value() was empty on parameter 0
	at feign.Util.checkState(Util.java:129)
	at org.springframework.cloud.openfeign.annotation.RequestParamParameterProcessor.processArgument(RequestParamParameterProcessor.java:65)
	at org.springframework.cloud.openfeign.support.SpringMvcContract.processAnnotationsOnParameter(SpringMvcContract.java:304)
	at feign.Contract$BaseContract.parseAndValidateMetadata(Contract.java:111)
	at org.springframework.cloud.openfeign.support.SpringMvcContract.parseAndValidateMetadata(SpringMvcContract.java:194)
	at feign.Contract$BaseContract.parseAndValidateMetadata(Contract.java:62)
	at feign.hystrix.HystrixDelegatingContract.parseAndValidateMetadata(HystrixDelegatingContract.java:47)

Caused by: java.lang.IllegalStateException: RequestParam.value() was empty on parameter 0

at feign.Util.checkState(Util.java:129)

at org.springframework.cloud.openfeign.annotation.RequestParamParameterProcessor.processArgument(RequestParamParameterProcessor.java:65)

at org.springframework.cloud.openfeign.support.SpringMvcContract.processAnnotationsOnParameter(SpringMvcContract.java:304)

at feign.Contract$BaseContract.parseAndValidateMetadata(Contract.java:111)

at org.springframework.cloud.openfeign.support.SpringMvcContract.parseAndValidateMetadata(SpringMvcContract.java:194)

at feign.Contract$BaseContract.parseAndValidateMetadata(Contract.java:62)

at feign.hystrix.HystrixDelegatingContract.parseAndValidateMetadata(HystrixDelegatingContract.java:47)

&nbs… Read More

如何控制 spring boot mvc Interceptor 顺序

解决： registry.addInterceptor(**).order(Int… Read More

《OAuth2 实战》不错

适合：了解 OAuth2 协议示例使用 Javascript 写的，不过都比较简单不了解Jav… Read More

IT问题

程序员的疑难杂症录

月份：2021年10月

spring clound openFeign & Eureka 报错 Load balancer does not have available server for client

spring openfeign RequestParam.value() was empty on parameter 0

如何控制 spring boot mvc Interceptor 顺序

《OAuth2 实战》不错