关于#java#的问题，如何解决？

at javax.swing.JOptionPane.createInternalFrame(Unknown Source)
    at javax.swing.JOptionPane.showInternalOptionDialog(Unknown Source)
    at javax.swing.JOptionPane.showInternalMessageDialog(Unknown Source)
    at javax.swing.JOptionPane.showInternalMessageDialog(Unknown Source)
    at javax.swing.JOptionPane.showInternalMessageDialog(Unknown Source)
    at com.DMView.LoginFrm.jb_loginActionPerformed(LoginFrm.java:217)
    at com.DMView.LoginFrm.access$1(LoginFrm.java:186)
    at com.DMView.LoginFrm$2.actionPerformed(LoginFrm.java:104)
    at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
    at javax.swing.AbstractButton$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$500(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue$4.run(Unknown Source)
    at java.awt.EventQueue$4.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.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)

能帮我看一下这咋回事吗，是一个简单的swing的管理系统连接MySQL的

这个报错上面还有错误信息也发出来，另外这个代码截图看看
com.DMView.LoginFrm.jb_loginActionPerformed(LoginFrm.java:217)

不知道你这个问题是否已经解决, 如果还没有解决的话:

• 这有个类似的问题, 你可以参考下: https://ask.csdn.net/questions/7480333
• 我还给你找了一篇非常好的博客，你可以看看是否有帮助，链接：基于MySQL和JavaFX的学生管理系统
• 除此之外, 这篇博客: Java中Mysql数据库地址的配置方式中的 1. 检索application.properties及其导入的文件 部分也许能够解决你的问题, 你可以仔细阅读以下内容或者直接跳转源博客中阅读:
  

  检索application.properties以及它导入的其他.properties文件。

• 您还可以看一下 汤小洋老师的手把手搭建Java健身房管理系统【附源码】（毕设）课程中的 环境搭建之安装MySQL小节, 巩固相关知识点
  

如果你已经解决了该问题, 非常希望你能够分享一下解决方案, 写成博客, 将相关链接放在评论区, 以帮助更多的人 ^-^