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我有一个从 Netbeans 7.1 运行时完美运行的 java 应用程序，但如果我使用构建 jar，它会崩溃。

我一直在调查这个问题，我注意到应用程序一直在调用 DriverManager.getConnection()。

我正在做类似的事情：

Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); 
Connection con =   DriverManager.getConnection("jdbc:sqlserver://127.0.0.1:2304;user=username;password=12345;database=databasename");

我也尝试过jtds，但结果相同。

我在 Windows 7 Home Premium SQL Server 2008 (localhost) Netbeans 7.1 上运行（从 Netbeans 运行时应用程序工作正常）Java 版本 1.6

线程转储

java.lang.Exception: Stack trace
    at java.lang.Thread.dumpStack(Unknown Source)
    at joomlasyncrnzr.JoomlaSyncrnzrApp.getCon(JoomlaSyncrnzrApp.java:314)
    at joomlasyncrnzr.JoomlaSyncrnzrApp.taxas(JoomlaSyncrnzrApp.java:604)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.jdesktop.application.ApplicationAction.noProxyActionPerformed(Ap
licationAction.java:662)
    at org.jdesktop.application.ApplicationAction.actionPerformed(ApplicatinAction.java:698)
    at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
    at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
    at java.awt.Component.processMouseEvent(Unknown Source)
    at javax.swing.JComponent.processMouseEvent(Unknown Source)
    at java.awt.Component.processEvent(Unknown Source)
    at java.awt.Container.processEvent(Unknown Source)
    at java.awt.Component.dispatchEventImpl(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Window.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access$000(Unknown Source)
    at java.awt.EventQueue$1.run(Unknown Source)
    at java.awt.EventQueue$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue$2.run(Unknown Source)
    at java.awt.EventQueue$2.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)

这可能是什么原因造成的？

4

2 回答 2

1

DriverManager.getConnection 调用无限期挂起，我遇到了同样的问题。

为我解决这个问题的方法是回到 Java 6 Update 25。Update 29 似乎引入了一个与 SQL Server 的 JDBC 连接的错误。我认为更新 27（或更早）仍然可以正常工作。

于 2011-10-27T08:28:17.037 回答
0

也许您在运行 jar 文件时没有将 CLASSPATH 设置为包含 SQL Server 驱动程序，而 Netbeans 可能已经为您包含了它。

于 2011-10-25T16:55:38.053 回答