error

[Failed to invoke the method getByShId in the service cn.chineseall.bcrs.service.book.BookService. Tried 1 times of the providers [192.168.0.221:20880] (1/1) from the registry 192.168.0.23:2181 on the consumer 192.168.0.218 using the dubbo version 2.4.9. Last error is: Failed to invoke remote method: getByShId, provider: dubbo://192.168.0.221:20880/cn.chineseall.bcrs.service.book.BookService?anyhost=true&application=book2-web&check=false&default.check=false&default.retries=0&default.service.filter=accesslog&default.timeout=600000&dubbo=2.4.9&interface=cn.chineseall.bcrs.service.book.BookService&lazy=true&methods=getBookDownloadUrl,send,queryBooksByBookNumber,getBookDetail,listBooks,add,getTxtTotalPages,getBookByBookId,addOne2Solr,modifyAndSendMessage,autoOffTheShelf,addAndSendMessage,listBook,getDownloadUrl,getDownloadCode,search,getByBookIdInfo,authDownloadCode,changeStatus,fillBookSo,getBookByBookNumber,getById,deleteMultipleAndSendMessage,getByAssetsId,addAll,searchBookBySolr,getDetail,modify,queryCountForSolr,searchBooks,queryBookForSolr,getByShId,searchBook,getYunBookCount,getBookSo,getContentUrl,getService,deleteOneAndSendMessage,addPart2Solr&monitor=dubbo%3A%2F%2F192.168.0.23%3A2181%2Fcom.alibaba.dubbo.registry.RegistryService%3Fapplication%3Dbook2-web%26backup%3D192.168.0.23%3A2182%2C192.168.0.23%3A2183%26dubbo%3D2.4.9%26pid%3D104357%26protocol%3Dregistry%26refer%3Ddubbo%253D2.4.9%2526interface%253Dcom.alibaba.dubbo.monitor.MonitorService%2526pid%253D104357%2526timestamp%253D1530675956574%26registry%3Dzookeeper%26timestamp%3D1530675956570&pid=104357&revision=2.0.1-20180528.094940-133&side=consumer×tamp=1530675954393, cause: client(url: dubbo://192.168.0.221:20880/cn.chineseall.bcrs.service.book.BookService?anyhost=true&application=book2-web&check=false&codec=dubbo&default.check=false&default.retries=0&default.service.filter=accesslog&default.timeout=600000&dubbo=2.4.9&heartbeat=60000&interface=cn.chineseall.bcrs.service.book.BookService&lazy=true&methods=getBookDownloadUrl,send,queryBooksByBookNumber,getBookDetail,listBooks,add,getTxtTotalPages,getBookByBookId,addOne2Solr,modifyAndSendMessage,autoOffTheShelf,addAndSendMessage,listBook,getDownloadUrl,getDownloadCode,search,getByBookIdInfo,authDownloadCode,changeStatus,fillBookSo,getBookByBookNumber,getById,deleteMultipleAndSendMessage,getByAssetsId,addAll,searchBookBySolr,getDetail,modify,queryCountForSolr,searchBooks,queryBookForSolr,getByShId,searchBook,getYunBookCount,getBookSo,getContentUrl,getService,deleteOneAndSendMessage,addPart2Solr&monitor=dubbo%3A%2F%2F192.168.0.23%3A2181%2Fcom.alibaba.dubbo.registry.RegistryService%3Fapplication%3Dbook2-web%26backup%3D192.168.0.23%3A2182%2C192.168.0.23%3A2183%26dubbo%3D2.4.9%26pid%3D104357%26protocol%3Dregistry%26refer%3Ddubbo%253D2.4.9%2526interface%253Dcom.alibaba.dubbo.monitor.MonitorService%2526pid%253D104357%2526timestamp%253D1530675956574%26registry%3Dzookeeper%26timestamp%3D1530675956570&pid=104357&revision=2.0.1-20180528.094940-133&send.reconnect=true&side=consumer×tamp=1530675954393) failed to connect to server /192.168.0.221:20880, error message is:拒绝连接]

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