我的跑步项目遇到了一些问题，但这个问题最糟糕：
String url="jdbc:oracle:login/pwd@host:1521:etudom";
Connection co = null;
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
co= DriverManager.getConnection(url);
popUp("Ok");
}
// Driver Oracle : Should never happen
catch (ClassNotFoundException e){
popUp("ERROR: Oracle Driver's missing");
//System.exit(1);
}
// Internet Connection Problem
catch (SQLException e) {
popUp("ERREOR : " + e.getMessage());
//System.exit(1);
}
这是OJDBC14的日志：
01-12 22:37:14.876: D/dalvikvm(558): Not late-enabling CheckJNI (already on)
01-12 22:37:16.867: D/gralloc_goldfish(558): Emulator without GPU emulation detected.
01-12 22:38:01.996: E/dalvikvm(558): Could not find class 'javax.management.MBeanServer', referenced from method oracle.jdbc.driver.OracleDriver.registerMBeans
01-12 22:38:02.006: W/dalvikvm(558): VFY: unable to resolve check-cast 706 (Ljavax/management/MBeanServer;) in Loracle/jdbc/driver/OracleDriver;
01-12 22:38:02.006: D/dalvikvm(558): VFY: replacing opcode 0x1f at 0x002d
01-12 22:38:02.006: I/dalvikvm(558): Could not find method java.lang.management.ManagementFactory.getPlatformMBeanServer, referenced from method oracle.jdbc.driver.OracleDriver.registerMBeans
01-12 22:38:02.006: W/dalvikvm(558): VFY: unable to resolve static method 3503: Ljava/lang/management/ManagementFactory;.getPlatformMBeanServer ()Ljavax/management/MBeanServer;
01-12 22:38:02.016: D/dalvikvm(558): VFY: replacing opcode 0x71 at 0x0080
01-12 22:38:02.016: I/dalvikvm(558): Could not find method java.lang.management.ManagementFactory.getPlatformMBeanServer, referenced from method oracle.jdbc.driver.OracleDriver.registerMBeans
01-12 22:38:02.027: W/dalvikvm(558): VFY: unable to resolve static method 3503: Ljava/lang/management/ManagementFactory;.getPlatformMBeanServer ()Ljavax/management/MBeanServer;
01-12 22:38:02.027: D/dalvikvm(558): VFY: replacing opcode 0x71 at 0x0094
01-12 22:38:02.036: I/dalvikvm(558): Could not find method java.lang.management.ManagementFactory.getPlatformMBeanServer, referenced from method oracle.jdbc.driver.OracleDriver.registerMBeans
01-12 22:38:02.036: W/dalvikvm(558): VFY: unable to resolve static method 3503: Ljava/lang/management/ManagementFactory;.getPlatformMBeanServer ()Ljavax/management/MBeanServer;
01-12 22:38:02.036: D/dalvikvm(558): VFY: replacing opcode 0x71 at 0x00a8
01-12 22:38:02.036: I/dalvikvm(558): Could not find method java.lang.management.ManagementFactory.getPlatformMBeanServer, referenced from method oracle.jdbc.driver.OracleDriver.registerMBeans
01-12 22:38:02.036: W/dalvikvm(558): VFY: unable to resolve static method 3503: Ljava/lang/management/ManagementFactory;.getPlatformMBeanServer ()Ljavax/management/MBeanServer;
01-12 22:38:02.036: D/dalvikvm(558): VFY: replacing opcode 0x71 at 0x00bc
01-12 22:38:02.046: I/dalvikvm(558): Could not find method java.lang.management.ManagementFactory.getPlatformMBeanServer, referenced from method oracle.jdbc.driver.OracleDriver.registerMBeans
01-12 22:38:02.046: W/dalvikvm(558): VFY: unable to resolve static method 3503: Ljava/lang/management/ManagementFactory;.getPlatformMBeanServer ()Ljavax/management/MBeanServer;
01-12 22:38:02.046: D/dalvikvm(558): VFY: replacing opcode 0x71 at 0x00d1
01-12 22:38:02.046: W/dalvikvm(558): VFY: unable to resolve exception class 702 (Ljavax/management/JMException;)
01-12 22:38:02.046: W/dalvikvm(558): VFY: unable to resolve exception class 702 (Ljavax/management/JMException;)
01-12 22:38:02.046: W/dalvikvm(558): VFY: unable to resolve exception class 702 (Ljavax/management/JMException;)
01-12 22:38:02.046: W/dalvikvm(558): VFY: unable to find exception handler at addr 0xfa
01-12 22:38:02.046: W/dalvikvm(558): VFY: rejected Loracle/jdbc/driver/OracleDriver;.registerMBeans ()V
01-12 22:38:02.046: W/dalvikvm(558): VFY: rejecting opcode 0x0d at 0x00fa
01-12 22:38:02.046: W/dalvikvm(558): VFY: rejected Loracle/jdbc/driver/OracleDriver;.registerMBeans ()V
01-12 22:38:02.056: W/dalvikvm(558): Verifier rejected class Loracle/jdbc/driver/OracleDriver;
我总是得到ClassNotFound异常并且它让我疯狂！
我在命令行项目中使用了相同的驱动程序，效果很好。
如果有任何人有任何线索，那就太棒了......
先谢谢你，感谢我的英语不好。
托马斯。
答案 0 :(得分：3)
较新的Oracle驱动程序（至少ojdbc6.jar，也许是早期版本的驱动程序）在Android上无效。它们需要Java标准版（Java SE）中的几个类，这些类在精简的Android平台上不可用。
<强>更新
错误信息非常清楚：
Could not find class 'javax.management.MBeanServer'
这是Android上缺少的Java SE类。它可能想要查看问题Android Oracle Database JDBC6。该用户可以在Android上使用 ojdbc14.jar 。
可能他/她使用不同的Oracle客户端，例如Class.forName("oracle.jdbc.OracleDriver");代替Class.forName("oracle.jdbc.driver.OracleDriver");。或者他/她使用了一个内部使用不同类的不同连接字符串。或者它是一个较旧的驱动程序，即使它也被称为 ojdbc14.jar 。