Feign之坑LInux不支持PostMapping但是windows支持

之前一直在windows上开发，feignClinet写都是按照接口服务的controller那边写的，controller那边用的是postMapping，所以我当时就直接复制到feignClinet的接口上了，在windows上开发调试都没问题，但当部署到测试的linux环境后，奶奶的，一直报错，错误如下：

java.lang.RuntimeException: com.netflix.client.ClientException
        at org.springframework.cloud.netflix.feign.ribbon.LoadBalancerFeignClient.execute(LoadBalancerFeignClient.java:71)
        at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:97)
        at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:76)
        at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:103)
        at com.sun.proxy.$Proxy113.addLog(Unknown Source)
        at com.skyroam.bsp.security4.gateway.log.LogHandler.run(LogHandler.java:64)
Caused by: com.netflix.client.ClientException
        at com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer(AbstractLoadBalancerAwareClient.java:123)
        at org.springframework.cloud.netflix.feign.ribbon.LoadBalancerFeignClient.execute(LoadBalancerFeignClient.java:63)
        ... 5 more
Caused by: java.lang.NullPointerException
        at com.netflix.loadbalancer.LoadBalancerContext.reconstructURIWithServer(LoadBalancerContext.java:575)
        at org.springframework.cloud.netflix.feign.ribbon.FeignLoadBalancer.reconstructURIWithServer(FeignLoadBalancer.java:105)
        at org.springframework.cloud.netflix.feign.ribbon.RetryableFeignLoadBalancer$1.doWithRetry(RetryableFeignLoadBalancer.java:86)
        at org.springframework.cloud.netflix.feign.ribbon.RetryableFeignLoadBalancer$1.doWithRetry(RetryableFeignLoadBalancer.java:77)
        at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:286)
        at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:163)
        at org.springframework.cloud.netflix.feign.ribbon.RetryableFeignLoadBalancer.execute(RetryableFeignLoadBalancer.java:77)
        at org.springframework.cloud.netflix.feign.ribbon.RetryableFeignLoadBalancer.execute(RetryableFeignLoadBalancer.java:48)
        at com.netflix.client.AbstractLoadBalancerAwareClient$1.call(AbstractLoadBalancerAwareClient.java:109)
        at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:303)
        at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:287)
        at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:231)
        at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:228)
        at rx.Observable.unsafeSubscribe(Observable.java:10211)
        at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.drain(OnSubscribeConcatMap.java:286)
        at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.onNext(OnSubscribeConcatMap.java:144)
        at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:185)
        at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:180)
        at rx.Observable.unsafeSubscribe(Observable.java:10211)
        at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:94)
        at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:42)
        at rx.Observable.unsafeSubscribe(Observable.java:10211)
        at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber$1.call(OperatorRetryWithPredicate.java:127)
        at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.enqueue(TrampolineScheduler.java:73)
        at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.schedule(TrampolineScheduler.java:52)
        at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:79)
        at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:45)
        at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276)
        at rx.Subscriber.setProducer(Subscriber.java:209)
        at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138)
        at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129)
        at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
        at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
        at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
        at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
        at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
        at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
        at rx.Observable.subscribe(Observable.java:10307)
        at rx.Observable.subscribe(Observable.java:10274)
        at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:445)
        at rx.observables.BlockingObservable.single(BlockingObservable.java:342)
        at com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer(AbstractLoadBalancerAwareClient.java:117)
        ... 6 more

具体是com.netflix.loadbalancer.LoadBalancerContext.reconstructURIWithServer(LoadBalancerContext.java:575) 这里报了空指针，查了源码，且进行了debug，发现这里调了两次，第一次没问题，再进来一次发现575行的host竟然变为空了，这个是在linux的，在windows环境却不为空，能正常通过。
后来听一个同事说，feignClient不能使用PostMapping,GetMapping这些东西，只能用RequestMapping，索性我就改成RequestMapping试了下，麻蛋，竟然好了

没具体看源码，有空再研究研究