DiscoveryClient_xxx:111-222:8080 - 无法刷新其缓存！状态 = 无法在任何已知服务器上执行请求：
我在我的本地主机上运行一个 spring 云应用程序。我用本地主机 eureka 注册。但是我得到了以下输出：
Request execution error
com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused
at
017-07-01 13:13:41 [DiscoveryClient-CacheRefreshExecutor-0] (DiscoveryClient.java:937) - Disable delta property : false
2017-07-01 13:13:41 [DiscoveryClient-CacheRefreshExecutor-0] (DiscoveryClient.java:938) - Single vip registry refresh property : null
2017-07-01 13:13:41 [DiscoveryClient-CacheRefreshExecutor-0] (DiscoveryClient.java:939) - Force full registry fetch : false
2017-07-01 13:13:41 [DiscoveryClient-CacheRefreshExecutor-0] (DiscoveryClient.java:940) - Application is null : false
2017-07-01 13:13:41 [DiscoveryClient-CacheRefreshExecutor-0] (DiscoveryClient.java:941) - Registered Applications size is zero : true
2017-07-01 13:13:41 [DiscoveryClient-CacheRefreshExecutor-0] (DiscoveryClient.java:943) - Application version …当前环境不支持使用socket.io的WebSockets时,有什么好处？