三月上旬新内容速递丨选图攻略、内存优化与场景深化

春风送暖,学习相伴!三月上旬更新聚焦数据可视化选图、内存管理技巧、频率分析与桑基图应用,助你轻松驾驭数据分析新场景!

一、场景应用精选

【数析课堂】频率分析:用“数数”快速定位业务痛点》→通过频率统计,快速发现高频问题,精准定位业务改进点。
【桑基图】流动的“资金河流”,一眼看透业务流向》→学习桑基图绘制,追踪资金流动路径,洞察业务流转全貌。

二、技术经验分享

不止选类型,更要找对入口:数据分析选图全攻略》→深入讲解图表选择的核心逻辑,助你告别“图表选择困难症”。
内存溢出别慌张:教你如何看懂BI的“胃”,并管住它的“嘴”》→揭秘BI内存机制,掌握优化技巧,让分析更流畅。

四、社区日志更新

2026年「月更日志」社区更新合集 2.1 - 2.28》→汇总二月社区更新动态,记录成长每一步。

六、任务持续上线

【BI知识闯关】不止选类型,更要找对入口:数据分析选图全攻略》→通过闯关巩固选图知识,提升实战应用能力。
【数析课堂】频率分析知识巩固》→配套练习,加深频率分析理解,强化业务洞察。
【图表应用】桑基图追踪资金流向,发现业务奥秘》→动手实践桑基图,探索资金流向中的业务规律。
【BI知识闯关】内存溢出别慌张:教你如何看懂BI的“胃”,并管住它的“嘴”》→挑战内存管理知识,成为BI优化高手。


阳春三月,学习正当时,快来社区参与挑战,一起探索数据新视界!

麦粉社区
>
帖子详情

跨库数据源查询报错sql错误:java.lang.ClassCastException

干货分享 发表于 2025-12-9 14:18
发表于 2025-12-9 14:18:50

mysql:8.0
跨库查询时,使用sql原生数据集查询跨库数据源时,查询其中 mysql8.0中表 时出现报错:sql错误:java.lang.ClassCastException。
mysql数据源自定义mysql8.0驱动链接,而跨库数据源同步链接信息。


求解决方案,谢谢。


已尝试:使用自定义的 驱动链接mysql数据库。

发表于 2025-12-9 14:48:52
Query failed (#20251209_055227_00556_j52k5): java.lang.ClassCastException
        at smartbi.freequery.querydata.store.DBSQLResultStore.executeInDatabaseInner(DBSQLResultStore.java:1419)
        at ...(...)
        at smartbi.util.PreparedStatementWrapper.executeQuery(JdbcUtil.java:363)
Caused by: java.sql.SQLException: Query failed (#20251209_055227_00556_j52k5): java.lang.ClassCastException
        at com.facebook.presto.jdbc.PrestoResultSet.resultsException(PrestoResultSet.java:1841)
        at com.facebook.presto.jdbc.PrestoResultSet.getColumns(PrestoResultSet.java:1751)
        at com.facebook.presto.jdbc.PrestoResultSet.(PrestoResultSet.java:121)
        at com.facebook.presto.jdbc.PrestoStatement.internalExecute(PrestoStatement.java:272)
        at com.facebook.presto.jdbc.PrestoStatement.execute(PrestoStatement.java:230)
        at com.facebook.presto.jdbc.PrestoStatement.executeQuery(PrestoStatement.java:79)
        at org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
        at org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
        at org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
        at smartbi.util.PreparedStatementWrapper.executeQuery(JdbcUtil.java:363)
        at smartbi.log.PreparedStatementWarp.executeQuery(PreparedStatementWarp.java:169)
        at smartbi.freequery.querydata.store.DBSQLResultStore.runRawSQL(DBSQLResultStore.java:5045)
        at smartbi.freequery.querydata.store.DBSQLResultStore.executeSQL(DBSQLResultStore.java:1495)
        at smartbi.freequery.querydata.store.DBSQLResultStore.executeInDatabaseInner(DBSQLResultStore.java:1358)
        at smartbi.freequery.querydata.store.DBSQLResultStore.executeInDatabase(DBSQLResultStore.java:1215)
        at smartbi.freequery.querydata.store.DBSQLResultStore.ensureGridDataInMemDB(DBSQLResultStore.java:6938)
        at smartbi.freequery.querydata.store.DBSQLResultStore.getGridDataInternal(DBSQLResultStore.java:5589)
        at smartbi.freequery.querydata.store.SQLResultStore.getGridData(SQLResultStore.java:288)
        at smartbi.freequery.report.SimpleReportBO.getGridDataInternal(SimpleReportBO.java:2336)
        at smartbi.freequery.report.SimpleReportBO.getGridDataInternal(SimpleReportBO.java:2225)
        at smartbi.freequery.report.SimpleReportBO.getGridDataInternal(SimpleReportBO.java:2196)
        at smartbi.freequery.report.SimpleReportBO.getGridData(SimpleReportBO.java:1987)
        at smartbi.freequery.client.simplereport.ClientReportService.getRefreshDataInner(ClientReportService.java:1109)
        at smartbi.freequery.client.simplereport.ClientReportService.getReportDataInPage(ClientReportService.java:1093)
        at smartbi.freequery.client.simplereport.ClientReportService.getReportDataWithFutureInPage(ClientReportService.java:1370)
        at smartbi.freequery.client.simplereport.ClientReportService.getReportDataWithFutureInPage(ClientReportService.java:1344)
        at smartbi.freequery.client.simplereport.ClientReportService.getReportDataWithFuture(ClientReportService.java:1287)
        at sun.reflect.GeneratedMethodAccessor1233.invoke(Unknown Source)
        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:198)
        at smartbi.framework.rmi.RMIServlet.doPost(RMIServlet.java:121)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        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.dingding.filter.DDLoginFilter.doFilter(DDLoginFilter.java:119)
        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:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at smartbi.framework.rmi.TransactionFilter.doFilter(Smartbi:87)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        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:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at smartbi.freequery.filter.ExceptionResponseFilter.doFilter(ExceptionResponseFilter.java:93)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at smartbi.freequery.filter.CheckIsLoggedFilter.doFilter(CheckIsLoggedFilter.java:240)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at smartbi.freequery.filter.CheckRefererFilter.doFilter(CheckRefererFilter.java:45)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at smartbi.freequery.filter.CheckHttpMethodFilter.doFilter(CheckHttpMethodFilter.java:62)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at smartbi.freequery.filter.TraceFilter.doFilter(TraceFilter.java:131)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at smartbi.framework.RedisSessionFilter.doFilter(RedisSessionFilter.java:131)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:544)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
        at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:698)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:353)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:616)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:831)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1629)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:748)
Caused by: com.facebook.presto.spi.PrestoException: java.lang.ClassCastException
        at smartbix.presto.jdbc.SmartbiBaseJdbcClient.getTableHandle(SmartbiBaseJdbcClient.java:173)
        at com.facebook.presto.plugin.jdbc.JdbcMetadata.getTableHandle(JdbcMetadata.java:80)
        at com.facebook.presto.plugin.jdbc.JdbcMetadata.getTableHandle(JdbcMetadata.java:51)
        at com.facebook.presto.metadata.MetadataManager.getTableHandle(MetadataManager.java:329)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.visitTable(StatementAnalyzer.java:918)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.visitTable(StatementAnalyzer.java:259)
        at com.facebook.presto.sql.tree.Table.accept(Table.java:53)
        at com.facebook.presto.sql.tree.AstVisitor.process(AstVisitor.java:27)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.process(StatementAnalyzer.java:273)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.analyzeFrom(StatementAnalyzer.java:1851)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.visitQuerySpecification(StatementAnalyzer.java:1033)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.visitQuerySpecification(StatementAnalyzer.java:259)
        at com.facebook.presto.sql.tree.QuerySpecification.accept(QuerySpecification.java:127)
        at com.facebook.presto.sql.tree.AstVisitor.process(AstVisitor.java:27)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.process(StatementAnalyzer.java:273)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.process(StatementAnalyzer.java:283)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.visitQuery(StatementAnalyzer.java:748)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.visitQuery(StatementAnalyzer.java:259)
        at com.facebook.presto.sql.tree.Query.accept(Query.java:94)
        at com.facebook.presto.sql.tree.AstVisitor.process(AstVisitor.java:27)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer$Visitor.process(StatementAnalyzer.java:273)
        at com.facebook.presto.sql.analyzer.StatementAnalyzer.analyze(StatementAnalyzer.java:251)
        at com.facebook.presto.sql.analyzer.Analyzer.analyze(Analyzer.java:76)
        at com.facebook.presto.sql.analyzer.Analyzer.analyze(Analyzer.java:68)
        at com.facebook.presto.execution.SqlQueryExecution.(SqlQueryExecution.java:209)
        at com.facebook.presto.execution.SqlQueryExecution.(SqlQueryExecution.java:97)
        at com.facebook.presto.execution.SqlQueryExecution$SqlQueryExecutionFactory.createQueryExecution(SqlQueryExecution.java:761)
        at com.facebook.presto.execution.SqlQueryManager.createQueryInternal(SqlQueryManager.java:361)
        at com.facebook.presto.execution.SqlQueryManager.lambda$createQuery$4(SqlQueryManager.java:303)
        at com.facebook.presto.$gen.Presto_0_218_6_gd2c62c6_dirty____20250918_074137_1.run(Unknown Source)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        ... 1 more
Caused by: java.sql.SQLException: java.lang.ClassCastException
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920)
        at com.mysql.jdbc.ConnectionImpl.buildCollationMapping(ConnectionImpl.java:1074)
        at com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3593)
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2534)
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2304)
        at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:834)
        at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:47)
        at sun.reflect.GeneratedConstructorAccessor779.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:411)
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:346)
        at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:307)
        at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:200)
        at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:699)
        at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:633)
        at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:484)
        at org.apache.tomcat.jdbc.pool.ConnectionPool.(ConnectionPool.java:142)
        at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:115)
        at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:102)
        at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:126)
        at smartbix.presto.jdbc.pool.DatasourceConnectionFactory.openConnection(DatasourceConnectionFactory.java:60)
        at smartbix.presto.jdbc.SmartbiBaseJdbcClient.getTableHandle(SmartbiBaseJdbcClient.java:155)
        ... 34 more
Caused by: java.lang.ClassCastException
回复

使用道具 举报

高级模式
B Color Image Link Quote Code Smilies
您需要登录后才可以回帖 登录 | 立即注册

1回帖数 0关注人数 696浏览人数
最后回复于:2025-12-9 14:48

社区

指南

AI

搜索

快速回复 返回顶部 返回列表