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我正在尝试为我的 jasperserver 使用远程 MYSQL 源。连接良好，不会抛出错误。但是，当我尝试在 jasperstudio 中进行报告时，出现以下错误

错误日志：

 java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

net.sf.jasperreports.engine.JRRuntimeException: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
    at net.sf.jasperreports.data.jdbc.JdbcDataAdapterService.getConnection(JdbcDataAdapterService.java:166)
    at net.sf.jasperreports.data.jdbc.JdbcDataAdapterService.contributeParameters(JdbcDataAdapterService.java:126)
    at com.jaspersoft.studio.data.jdbc.JDBCFieldsProvider.getFields(JDBCFieldsProvider.java:52)
    at com.jaspersoft.studio.data.jdbc.JDBCDataAdapterDescriptor.getFields(JDBCDataAdapterDescriptor.java:83)
    at com.jaspersoft.studio.data.ui.SimpleQueryWizardDataEditorComposite.readFields(SimpleQueryWizardDataEditorComposite.java:258)
    at com.jaspersoft.studio.property.dataset.wizard.WizardDataSourcePage.run(WizardDataSourcePage.java:369)
    at com.jaspersoft.studio.wizards.JSSWizardRunnablePage$1.run(JSSWizardRunnablePage.java:84)
    at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
    at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:249)
    at net.sf.jasperreports.engine.util.JRClassLoader.loadClassForRealName(JRClassLoader.java:175)
    at net.sf.jasperreports.data.jdbc.JdbcDataAdapterService.getConnection(JdbcDataAdapterService.java:141)
    ... 7 more

我也绝对有司机课程mysql-connector-java-5.1.26-bin.jar。/opt/jasperreports-server-cp-5.5.0/lib

我在类路径 /opt/jasperreports-server-cp-5.5.0/webapps/jasperserver/WEB-INF/lib 中也有相同的 connector.jar ...仍然没有。

我不确定问题是什么......任何帮助将不胜感激！谢谢！

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2 回答 2

1

解决了！！

我也必须将驱动程序添加到 jasper 套件的类路径中！

于 2013-11-15T18:38:36.873 回答
0 
sudo dnf install mysql-connector-java
updatedb
locate mysql-connector-java.jar

然后只需在 JasperSoft 的“驱动程序类路径”选项卡中添加绝对路径。

于 2016-06-22T13:12:57.330 回答