BIRT JDBCException "Không thể tải JDBC Driver class: com.mysql.jdbc.Driver" trong khi nâng cấp từ 2.6 lên 3.7

Question

Tôi đang cố gắng nâng cấp phiên bản trình xem birt của mình trên máy chủ Tomcat của mình, nhưng có vẻ như tôi có một lỗi khi tải trình điều khiển JDBC:

exception.error (1 time(s)) 
detail : org.eclipse.birt.report.engine.api.EngineException: An exception occurred during processing. Please see the following message for details: 
Cannot open the connection for the driver: org.eclipse.birt.report.data.oda.jdbc. 
    org.eclipse.birt.report.data.oda.jdbc.JDBCException: Cannot load JDBC Driver class: com.mysql.jdbc.Driver. (Element ID:1351) 
    at org.eclipse.birt.report.engine.executor.ExecutionContext.addException(ExecutionContext.java:1237) 
    at org.eclipse.birt.report.engine.executor.ExecutionContext.addException(ExecutionContext.java:1216) 
    at org.eclipse.birt.report.engine.executor.QueryItemExecutor.executeQuery(QueryItemExecutor.java:96) 
    at org.eclipse.birt.report.engine.executor.TableItemExecutor.execute(TableItemExecutor.java:62) 
    at org.eclipse.birt.report.engine.internal.executor.dup.SuppressDuplicateItemExecutor.execute(SuppressDuplicateItemExecutor.java:43) 
    at org.eclipse.birt.report.engine.internal.executor.wrap.WrappedReportItemExecutor.execute(WrappedReportItemExecutor.java:46) 
    at org.eclipse.birt.report.engine.internal.executor.l18n.LocalizedReportItemExecutor.execute(LocalizedReportItemExecutor.java:34) 
    at org.eclipse.birt.report.engine.layout.html.HTMLBlockStackingLM.layoutNodes(HTMLBlockStackingLM.java:65) 
    at org.eclipse.birt.report.engine.layout.html.HTMLStackingLM.layoutChildren(HTMLStackingLM.java:26) 
    at org.eclipse.birt.report.engine.layout.html.HTMLAbstractLM.layout(HTMLAbstractLM.java:140) 
    at org.eclipse.birt.report.engine.layout.html.HTMLInlineStackingLM.resumeLayout(HTMLInlineStackingLM.java:111) 
    at org.eclipse.birt.report.engine.layout.html.HTMLInlineStackingLM.layoutNodes(HTMLInlineStackingLM.java:160) 
    at org.eclipse.birt.report.engine.layout.html.HTMLStackingLM.layoutChildren(HTMLStackingLM.java:26) 
    at org.eclipse.birt.report.engine.layout.html.HTMLAbstractLM.layout(HTMLAbstractLM.java:140) 
    at org.eclipse.birt.report.engine.layout.html.HTMLBlockStackingLM.layoutNodes(HTMLBlockStackingLM.java:70) 
    at org.eclipse.birt.report.engine.layout.html.HTMLStackingLM.layoutChildren(HTMLStackingLM.java:26) 
    at org.eclipse.birt.report.engine.layout.html.HTMLTableLM.layoutChildren(HTMLTableLM.java:132) 
    at org.eclipse.birt.report.engine.layout.html.HTMLAbstractLM.layout(HTMLAbstractLM.java:140) 
    at org.eclipse.birt.report.engine.layout.html.HTMLBlockStackingLM.layoutNodes(HTMLBlockStackingLM.java:70) 
    at org.eclipse.birt.report.engine.layout.html.HTMLPageLM.layout(HTMLPageLM.java:92) 
    at org.eclipse.birt.report.engine.layout.html.HTMLReportLayoutEngine.layout(HTMLReportLayoutEngine.java:100) 
    at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.doRun(RunAndRenderTask.java:180) 
    at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.run(RunAndRenderTask.java:77) 
    at org.eclipse.birt.report.service.ReportEngineService.runAndRenderReport(ReportEngineService.java:929) 
    at org.eclipse.birt.report.service.BirtViewerReportService.runAndRenderReport(BirtViewerReportService.java:973) 
    at org.eclipse.birt.report.service.actionhandler.BirtRunAndRenderActionHandler.__execute(BirtRunAndRenderActionHandler.java:76) 
    at org.eclipse.birt.report.service.actionhandler.AbstractBaseActionHandler.execute(AbstractBaseActionHandler.java:90) 
    at org.eclipse.birt.report.presentation.aggregation.layout.EngineFragment.doService(EngineFragment.java:318) 
    at org.eclipse.birt.report.presentation.aggregation.AbstractBaseFragment.service(AbstractBaseFragment.java:76) 
    at org.eclipse.birt.report.servlet.BirtEngineServlet.__doGet(BirtEngineServlet.java:120) 
    at org.eclipse.birt.report.servlet.BaseReportEngineServlet.doGet(BaseReportEngineServlet.java:185) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
    at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.eclipse.birt.report.servlet.BaseReportEngineServlet.service(BaseReportEngineServlet.java:116) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.eclipse.birt.report.filter.ViewerFilter.doFilter(ViewerFilter.java:68) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) 
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859) 
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) 
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) 
    at java.lang.Thread.run(Thread.java:662) 
Caused by: org.eclipse.birt.report.data.adapter.api.AdapterException: An exception occurred during processing. Please see the following message for details: 
Cannot open the connection for the driver: org.eclipse.birt.report.data.oda.jdbc. 
    org.eclipse.birt.report.data.oda.jdbc.JDBCException: Cannot load JDBC Driver class: com.mysql.jdbc.Driver. 
    at org.eclipse.birt.report.data.adapter.impl.DataRequestSessionImpl.execute(DataRequestSessionImpl.java:644) 
    at org.eclipse.birt.report.engine.data.dte.DteDataEngine.doExecuteQuery(DteDataEngine.java:158) 
    at org.eclipse.birt.report.engine.data.dte.AbstractDataEngine.execute(AbstractDataEngine.java:267) 
    at org.eclipse.birt.report.engine.executor.ExecutionContext.executeQuery(ExecutionContext.java:1939) 
    at org.eclipse.birt.report.engine.executor.QueryItemExecutor.executeQuery(QueryItemExecutor.java:80) 
    ... 47 more 
Caused by: org.eclipse.birt.data.engine.odaconsumer.OdaDataException: Cannot open the connection for the driver: org.eclipse.birt.report.data.oda.jdbc. 
    org.eclipse.birt.report.data.oda.jdbc.JDBCException: Cannot load JDBC Driver class: com.mysql.jdbc.Driver. 
    at org.eclipse.birt.data.engine.odaconsumer.ExceptionHandler.newException(ExceptionHandler.java:54) 
    at org.eclipse.birt.data.engine.odaconsumer.ConnectionManager.openConnection(ConnectionManager.java:177) 
    at org.eclipse.birt.data.engine.executor.DataSource.newConnection(DataSource.java:224) 
    at org.eclipse.birt.data.engine.executor.DataSource.open(DataSource.java:212) 
    at org.eclipse.birt.data.engine.impl.DataSourceRuntime.openOdiDataSource(DataSourceRuntime.java:217) 
    at org.eclipse.birt.data.engine.impl.QueryExecutor.openDataSource(QueryExecutor.java:407) 
    at org.eclipse.birt.data.engine.impl.QueryExecutor.prepareExecution(QueryExecutor.java:317) 
    at org.eclipse.birt.data.engine.impl.PreparedQuery.doPrepare(PreparedQuery.java:455) 
    at org.eclipse.birt.data.engine.impl.PreparedDataSourceQuery.produceQueryResults(PreparedDataSourceQuery.java:190) 
    at org.eclipse.birt.data.engine.impl.PreparedDataSourceQuery.execute(PreparedDataSourceQuery.java:178) 
    at org.eclipse.birt.data.engine.impl.PreparedOdaDSQuery.execute(PreparedOdaDSQuery.java:145) 
    at org.eclipse.birt.report.data.adapter.impl.DataRequestSessionImpl.execute(DataRequestSessionImpl.java:624) 
    ... 51 more 
Caused by: org.eclipse.birt.report.data.oda.jdbc.JDBCException: Cannot load JDBC Driver class: com.mysql.jdbc.Driver. 
    at org.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.findDriver(JDBCDriverManager.java:836) 
    at org.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.loadAndRegisterDriver(JDBCDriverManager.java:941) 
    at org.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.loadAndRegisterDriver(JDBCDriverManager.java:918) 
    at org.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.doConnect(JDBCDriverManager.java:266) 
    at org.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.getConnection(JDBCDriverManager.java:232) 
    at org.eclipse.birt.report.data.oda.jdbc.Connection.connectByUrl(Connection.java:243) 
    at org.eclipse.birt.report.data.oda.jdbc.Connection.open(Connection.java:162) 
    at org.eclipse.datatools.connectivity.oda.consumer.helper.OdaConnection.open(OdaConnection.java:250) 
    at org.eclipse.birt.data.engine.odaconsumer.ConnectionManager.openConnection(ConnectionManager.java:165) 
    ... 61 more 

Trường hợp của tôi hơi đặc biệt, vì tôi không biết liệu tôi có thực hiện đúng hay không. Tôi tự giải thích.

Tôi có một số báo cáo được thiết kế với BIRT 2.6 và một số báo cáo khác được thiết kế với BIRT 3.7. Những gì tôi đã thực hiện trên máy chủ Tomcat của tôi là tôi đã tạo ra hai kho: - BIRT-viewer - BIRT-viewer3.7

tôi đặt trình điều khiển MySQL (mysql-connector-java-5.0.8-bin. jar) tệp trong birt-viewer3.7/WEB-INF/lib/.

Nhưng tôi vẫn gặp lỗi. Tôi cũng đã cố gắng để đặt nó trong birt-viewer3.7/WEB-INF/nền tảng/plugins/ nhưng các lỗi vẫn giữ nguyên.

Trước hết: có thể tạo hai phiên bản cùng tồn tại với người xem không?

Nếu có thể, tôi có thể làm gì để giải quyết vấn đề trình điều khiển này?

Cảm ơn.

Answer 1

Bạn đã định cấu hình trình điều khiển trong chính thiết kế báo cáo chưa? Mở thiết kế báo cáo, nhấp đúp vào nguồn dữ liệu và nhấp vào nút Quản lý trình điều khiển ....

Answer 2

bản sao "mysql-connector-java-5.0.8-bin.jar" thành "WEB-INF \ platform \ plugins \ org.eclipse.birt.report.data.oda.jdbc_INSTALLED_VERSION \ drivers" thư mục