mysql数据连接数据库报错

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报这个错： version: 2023-01-13 22:30:50 packageinfo: Hotfix_SmartbiV10_5_8_20230111 获取数据库连接失败:获取数据库连接失败:Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at smartbi.connectionpool.ConnectionPool.doGetConnection(ConnectionPool.java:732) at ...(...) at smartbi.connectionpool.SmartbiPoolableConnection.doGetConnection(SmartbiPoolableConnection.java:82) Caused by: java.sql.SQLException: 获取数据库连接失败:Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at smartbi.connectionpool.SmartbiPoolableConnection.doGetConnection(SmartbiPoolableConnection.java:82) at smartbi.connectionpool.ConnectionPool.doGetConnection(ConnectionPool.java:728) at smartbi.connectionpool.ConnectionPool.driverConnect(ConnectionPool.java:523) at smartbi.connectionpool.ConnectionPool.getConnection(ConnectionPool.java:844) at smartbi.connectionpool.ConnectionPool.getConnection(ConnectionPool.java:789) at smartbi.freequery.basicdata.MetaDataServiceImpl.testConnection(MetaDataServiceImpl.java:655) at smartbi.freequery.client.datasource.DataSourceService.testConnectionList(DataSourceService.java:296) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at smartbi.framework.rmi.ClientService.executeInternal(ClientService.java:138) at smartbi.framework.rmi.ClientService.execute(ClientService.java:120) at smartbi.framework.rmi.RMIServlet.processExecute(RMIServlet.java:209) at smartbi.framework.rmi.RMIServlet.doPost(RMIServlet.java:132) at javax.servlet.http.HttpServlet.service(HttpServlet.java:515) at javax.servlet.http.HttpServlet.service(HttpServlet.java:583) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:212) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.extension.ExtensionFilter$1.doFilter(ExtensionFilter.java:249) at smartbi.extension.ExtensionFilter$2.doFilter(ExtensionFilter.java:273) at smartbi.security.patch.PatchFilter.doFilter(PatchFilter.java:77) at smartbi.extension.ExtensionFilter$2.doFilter(ExtensionFilter.java:273) at smartbi.extension.ExtensionFilter.doFilterInternal(ExtensionFilter.java:276) at smartbi.extension.ExtensionFilter.doFilter(ExtensionFilter.java:127) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.framework.rmi.TransactionFilter.doFilter(Smartbi:71) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.GZIPFilter.doFilter(GZIPFilter.java:238) at smartbi.freequery.filter.Filter.doFilter(Filter.java:33) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.ExceptionResponseFilter.doFilter(ExceptionResponseFilter.java:85) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.CheckIsLoggedFilter.doFilter(CheckIsLoggedFilter.java:240) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.CheckRefererFilter.doFilter(CheckRefererFilter.java:45) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.CheckHttpMethodFilter.doFilter(CheckHttpMethodFilter.java:62) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.TraceFilter.doFilter(TraceFilter.java:131) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.framework.RedisSessionFilter.doFilter(RedisSessionFilter.java:122) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:679) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:617) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:934) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1690) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) at java.lang.Thread.run(Thread.java:748) Caused by: 获取数据库连接失败:Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at smartbi.connectionpool.ConnectionPool$6.createConnectionInner(ConnectionPool.java:1369) at ...(...) at smartbi.connectionpool.ConnectionPool$6.createConnectionInner(ConnectionPool.java:1363) Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:335) at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2187) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2220) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2015) at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:768) at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:47) at sun.reflect.GeneratedConstructorAccessor1659.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:385) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:323) at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38) at smartbi.connectionpool.ConnectionPool$6.createConnectionInner(ConnectionPool.java:1363) at smartbi.connectionpool.ConnectionPool$6.createConnection(ConnectionPool.java:1405) at smartbi.connectionpool.SmartbiPoolableConnectionFactory.makeObjectInternal(SmartbiPoolableConnectionFactory.java:154) at smartbi.connectionpool.SmartbiPoolableConnection.doGetConnection(SmartbiPoolableConnection.java:72) at smartbi.connectionpool.ConnectionPool.doGetConnection(ConnectionPool.java:728) at smartbi.connectionpool.ConnectionPool.driverConnect(ConnectionPool.java:523) at smartbi.connectionpool.ConnectionPool.getConnection(ConnectionPool.java:844) at smartbi.connectionpool.ConnectionPool.getConnection(ConnectionPool.java:789) at smartbi.freequery.basicdata.MetaDataServiceImpl.testConnection(MetaDataServiceImpl.java:655) at smartbi.freequery.client.datasource.DataSourceService.testConnectionList(DataSourceService.java:296) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at smartbi.framework.rmi.ClientService.executeInternal(ClientService.java:138) at smartbi.framework.rmi.ClientService.execute(ClientService.java:120) at smartbi.framework.rmi.RMIServlet.processExecute(RMIServlet.java:209) at smartbi.framework.rmi.RMIServlet.doPost(RMIServlet.java:132) at javax.servlet.http.HttpServlet.service(HttpServlet.java:515) at javax.servlet.http.HttpServlet.service(HttpServlet.java:583) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:212) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.extension.ExtensionFilter$1.doFilter(ExtensionFilter.java:249) at smartbi.extension.ExtensionFilter$2.doFilter(ExtensionFilter.java:273) at smartbi.security.patch.PatchFilter.doFilter(PatchFilter.java:77) at smartbi.extension.ExtensionFilter$2.doFilter(ExtensionFilter.java:273) at smartbi.extension.ExtensionFilter.doFilterInternal(ExtensionFilter.java:276) at smartbi.extension.ExtensionFilter.doFilter(ExtensionFilter.java:127) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.framework.rmi.TransactionFilter.doFilter(Smartbi:71) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.GZIPFilter.doFilter(GZIPFilter.java:238) at smartbi.freequery.filter.Filter.doFilter(Filter.java:33) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.ExceptionResponseFilter.doFilter(ExceptionResponseFilter.java:85) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.CheckIsLoggedFilter.doFilter(CheckIsLoggedFilter.java:240) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.CheckRefererFilter.doFilter(CheckRefererFilter.java:45) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.CheckHttpMethodFilter.doFilter(CheckHttpMethodFilter.java:62) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.freequery.filter.TraceFilter.doFilter(TraceFilter.java:131) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at smartbi.framework.RedisSessionFilter.doFilter(RedisSessionFilter.java:122) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:679) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:617) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:934) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1690) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) at java.lang.Thread.run(Thread.java:748) Caused by: java.net.ConnectException: Connection refused: connect at java.net.DualStackPlainSocketImpl.connect0(Native Method) at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:211) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:299) ... 87 more