访问BIRT报表时出现Cannot-load-JDBC-Driver错误.doc

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1、访问BIRT报表时出现CannotloadJDBCDriver错误！访问BIRT报表时出现错误：可能原因是ORACLEJDBC类没有找到，但是在项目里面已经包含了classes12的包。在JBoss的lib里面也包含classes12的包。引用14:09:49,685INFO [STDOUT]2007-12-1414:09:49org.eclipse.birt.report.data.oda.jdbc.JDBCDriverManagerfindDriver警告:FailedtoloadJDBCdriverclass:oracle.jdbc.OracleDriver14:09:49,

2、895INFO [STDOUT]2007-12-1414:09:49org.eclipse.birt.data.engine.odaconsumer.ConnectionManageropenConnection严重:Cannotopenconnection.org.eclipse.birt.report.data.oda.jdbc.JDBCException:CannotloadJDBCDriverclass:oracle.jdbc.OracleDriveratorg.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.find

3、Driver(JDBCDriverManager.java:623)atorg.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.loadAndRegisterDriver(JDBCDriverManager.java:731)atorg.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.doConnect(JDBCDriverManager.java:192)atorg.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.

4、getConnection(JDBCDriverManager.java:158)atorg.eclipse.birt.report.data.oda.jdbc.Connection.connectByUrl(Connection.java:158)atorg.eclipse.birt.report.data.oda.jdbc.Connection.open(Connection.java:115)atorg.eclipse.datatools.connectivity.oda.consumer.helper.OdaConnection.open(OdaConnection.jav

5、a:235)atorg.eclipse.birt.data.engine.odaconsumer.ConnectionManager.openConnection(ConnectionManager.java:145)atorg.eclipse.birt.data.engine.executor.DataSource.newConnection(DataSource.java:134)atorg.eclipse.birt.data.engine.executor.DataSource.open(DataSource.java:121)atorg.eclipse.birt.data.

6、engine.impl.DataSourceRuntime.openOdiDataSource(DataSourceRuntime.java:214)atorg.eclipse.birt.data.engine.impl.QueryExecutor.openDataSource(QueryExecutor.java:265)atorg.eclipse.birt.data.engine.impl.QueryExecutor.prepareExecution(QueryExecutor.java:210)atorg.eclipse.birt.data.engine.impl.Prepa

7、redQuery.doPrepare(PreparedQuery.java:500)atorg.eclipse.birt.data.engine.impl.PreparedDataSourceQuery.execute(PreparedDataSourceQuery.java:161)atorg.eclipse.birt.data.engine.impl.PreparedOdaDSQuery.execute(PreparedOdaDSQuery.java:142)at