我有一个jasper报告，可以在iReports中正常工作。当我在Jasperserver上运行相同的报告时，它会给我一个错误消息＆＃39;参数＆＃34; DATABASE_TIMEZONE不存在＆＃34;＆＃39;。我的主报表有多个子报表，子报表还引用了多个子报表。我有近30个子报告。以下是来自jasperserver的错误日志：
2016-10-04 19:46:58,519 ERROR ManagementServiceImpl,https-openssl-nio-192.0.0.0-443-exec-24:1332 - caught Throwable exception: Parameter "DATABASE_TIMEZONE" does not exist.
net.sf.jasperreports.engine.JRRuntimeException: Parameter "DATABASE_TIMEZONE" does not exist.
at net.sf.jasperreports.engine.query.JRAbstractQueryExecuter.getValueParameter(JRAbstractQueryExecuter.java:869)
at net.sf.jasperreports.engine.query.JRAbstractQueryExecuter.getValueParameter(JRAbstractQueryExecuter.java:887)
at com.jaspersoft.jasperserver.api.engine.jasperreports.util.JRTimezoneJdbcQueryExecuter.getValueParameter(JRTimezoneJdbcQueryExecuter.java:149)
at com.jaspersoft.jasperserver.api.engine.jasperreports.util.JRTimezoneJdbcQueryExecuter.<init>(JRTimezoneJdbcQueryExecuter.java:133)
at com.jaspersoft.jasperserver.api.engine.jasperreports.util.JRTimezoneJdbcQueryExecuterFactory.createQueryExecuter(JRTimezoneJdbcQueryExecuterFactory.java:51)
at net.sf.jasperreports.engine.fill.JRFillDataset.createQueryDatasource(JRFillDataset.java:1126)
at net.sf.jasperreports.engine.fill.JRFillDataset.initDatasource(JRFillDataset.java:696)
at net.sf.jasperreports.engine.fill.BaseReportFiller.setParameters(BaseReportFiller.java:437)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:548)
at net.sf.jasperreports.engine.fill.BaseReportFiller.fill(BaseReportFiller.java:396)
at net.sf.jasperreports.engine.fill.JRFillSubreport.fillSubreport(JRFillSubreport.java:732)
at net.sf.jasperreports.engine.fill.JRSubreportRunnable.run(JRSubreportRunnable.java:59)
at net.sf.jasperreports.engine.fill.AbstractThreadSubreportRunner.run(AbstractThreadSubreportRunner.java:221)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)