写了Controller类返回json数据文件时候报错This application has no explicit mapping for /error, so you are seeing this as a fallback.回到idear发现报错：Error querying database.Cause: org.springframework.jdbc.CannotGetJdbcCo

项目报错：java: Annotation processing is not supported for module cycles. Please ensure that all modules from cycle [JDD-common,JDD-item-interface] are excluded from annotation processing简而言之： JDD-common,J

问题描述：昨天还能ping通baidu，今天起来发现报了这个错误。解决方案：第一步，先win+r，在cmd中尝试ping 192.168.8.130（我的虚拟机地址），发现能够ping通（那么大概率是DNS域名解析的问题）第二步：在Linux中修改网络配置vi /ect/syconfig/network-scripts/ifcfg-ens32添加上DNS1=114.114.114.114然后保存退

Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.netflix.hystrix.HystrixCircuitBreakerConfiguration]意思是：未能反射hystrix类包（就是添加了依赖没加载进去）解决方案：点一下Maven，Reload

项目报错：java: Annotation processing is not supported for module cycles. Please ensure that all modules from cycle [JDD-common,JDD-item-interface] are excluded from annotation processing简而言之： JDD-common,J