java.lang.ClassNotFoundException：sun.jdbc.odbc.JdbcOdbcDriver在java中不再起作用。 如何解决这个问题？
它工作两天前。 现在它没有。 我100％确定编码是正确的。 这是我用来连接数据库的方式。 找不到我的问题的答案。 请给我一个答案，因为我是java语言的初学者。 （使用jdk 7u72）
public void set() { try { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String su=new String("jdbc:odbc:MOVIESURF"); //This is the database con=DriverManager.getConnection(su,"",""); st=con.createStatement(); } catch(Exception e2){System.out.println(e2);} } 这是堆栈跟踪
java.lang.ClassNotFoundException: sun.jdbc.odbc.JdbcOdbcDriver at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at A.set(jptest7.java:410) at A.actionPerformed(jptest7.java:560) 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$400(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$1.doIntersectionPrivilege(Unknown Source) at java.security.ProtectionDomain$1.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$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) Connection failed select PASSWORD from USERS where USERNAME='ashane' ERROR: java.lang.NullPointerException
根据注释，您的系统现在在Java 8 JRE上运行。 ODBC桥已从此以及所有未来版本中删除。 您需要为要连接的数据库找到本机JDBC驱动程序，并将其放在类路径中。
java -classpath "[/path/to/your/driver.jar];." [yourclassname]
或者，您可以显式使用JDK 7运行时，但我建议不要这样做。 你发现了一个兼容性问题，解决它比试图解决它更好。
请将您的jar添加到类路径，如下所示。
java -cp .; C：\ Program Files \ MySQL \ mysql-connector-java-5.1.15 \ mysql-connector-java-5.1.15.jar MysqlConnect
注意：请根据要求将msql连接器替换为您的jar文件。