Derby client jdbc driver connection error : Failed to create database 'sample'
Derby client jdbc driver connection error : Failed to create database 'sample'
我按照本教程中所述启动了 Derby Network Server - here。
但是当我输入时：
ij> connect 'jdbc:derby://localhost:1527/sample;create=true',
我收到以下错误：
ERROR XJ041: DERBY SQL error: ERRORCODE: 40000, SQLSTATE: XJ041,
SQLERRMC: Faile d to create database 'sample', see the next exception
for details.::SQLSTATE: XB M0H
有什么解决办法吗？
derby.log内容：
Tue Oct 13 10:56:03 EEST 2015 : Apache Derby Network Server - 10.11.1.2 - (1629631) started and ready to accept connections on port 1527
Tue Oct 13 10:56:10 EEST 2015 Thread[DRDAConnThread_2,5,main] Cleanup action starting
ERROR XBM0H: Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.services.monitor.StorageFactoryService.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.services.monitor.StorageFactoryService.createServiceRoot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.createPersistentService(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.createDatabase(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.getNewEmbedConnection(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.EmbeddedDriver.connect(Unknown Source)
at org.apache.derby.impl.drda.Database.makeConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
Cleanup action completed
Tue Oct 13 10:56:10 EEST 2015 Thread[DRDAConnThread_2,5,main] Cleanup action starting
java.sql.SQLException: Failed to create database 'sample', see the next exception for details.
at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.seeNextException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.createDatabase(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.getNewEmbedConnection(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.EmbeddedDriver.connect(Unknown Source)
at org.apache.derby.impl.drda.Database.makeConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
Caused by: ERROR XJ041: Failed to create database 'sample', see the next exception for details.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.jdbc.SQLExceptionFactory.wrapArgsForTransportAcrossDRDA(Unknown Source)
... 16 more
Caused by: ERROR XBM0H: Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.services.monitor.StorageFactoryService.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.services.monitor.StorageFactoryService.createServiceRoot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.createPersistentService(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.createPersistentService(Unknown Source)
... 13 more
============= begin nested exception, level (1) ===========
java.sql.SQLException: Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.createDatabase(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.getNewEmbedConnection(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.EmbeddedDriver.connect(Unknown Source)
at org.apache.derby.impl.drda.Database.makeConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
Caused by: ERROR XBM0H: Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.services.monitor.StorageFactoryService.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.services.monitor.StorageFactoryService.createServiceRoot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.createPersistentService(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.createPersistentService(Unknown Source)
... 13 more
============= end nested exception, level (1) ===========
============= begin nested exception, level (2) ===========
ERROR XBM0H: Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.services.monitor.StorageFactoryService.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.services.monitor.StorageFactoryService.createServiceRoot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.createPersistentService(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.createDatabase(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.getNewEmbedConnection(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.EmbeddedDriver.connect(Unknown Source)
at org.apache.derby.impl.drda.Database.makeConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
============= end nested exception, level (2) ===========
Cleanup action completed
Tue Oct 13 10:56:10 EEST 2015 Thread[DRDAConnThread_2,5,main] (DATABASE = sample), (DRDAID = {1}), Failed to create database 'sample', see the next exception for details.
Tue Oct 13 10:56:10 EEST 2015 Thread[DRDAConnThread_2,5,main] (DATABASE = sample), (DRDAID = {1}), Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
日志条目指出：
Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created
据我所知，这可能是 network server 进程没有足够权限在 C:\Program Files\Java\jdk1.8.0_45\db\bin\ 中创建目录的权限问题。您可以尝试以管理员身份运行。
从您的异常堆栈跟踪来看，您的 Derby 网络服务器进程似乎是在文件夹 C:\Program Files\Java\jdk1.8.0_45\db\bin\ 中启动的，并且该进程似乎没有在该文件夹中写入（Derby 数据库）文件的权限。尝试找到 Derby 服务器进程有权写入文件的文件夹。您可以在 Derby 连接 URL 中指定 windows 驱动器号和路径。只需确保将任何反斜杠 \ 转换为正斜杠 / 或像这样转义它们 \。因此，例如，如果您知道 Derby 服务器进程可以写入 d:\temp 文件夹，那么您可以将命令编写为
ij> connect jdbc:derby://localhost:1527/d:/temp/sample;create=true
或
ij> connect jdbc:derby://localhost:1527/d:\temp\sample;create=true
使用 Derby 时当心替代驱动器 - 如果将数据库放在替代驱动器上，它将无法工作，并且您会在日志中遇到令人困惑的 nio 异常和 class 转换错误。所以这不有效：
connect 'jdbc:derby://localhost:1527/t:/DerbyDB;create=true';
其中 t 被替换。指向驱动器 c 的相同命令确实有效：
connect 'jdbc:derby://localhost:1527/c:/DerbyDB;create=true';
在 Derby 站点上有对这些问题的讨论，但可能不是所有情况下都已解决？包括数据库本身在替代驱动器上的位置。我目前使用的是版本 10.10.2.0
我按照本教程中所述启动了 Derby Network Server - here。
但是当我输入时：
ij> connect 'jdbc:derby://localhost:1527/sample;create=true',
我收到以下错误：
ERROR XJ041: DERBY SQL error: ERRORCODE: 40000, SQLSTATE: XJ041, SQLERRMC: Faile d to create database 'sample', see the next exception for details.::SQLSTATE: XB M0H
有什么解决办法吗？
derby.log内容：
Tue Oct 13 10:56:03 EEST 2015 : Apache Derby Network Server - 10.11.1.2 - (1629631) started and ready to accept connections on port 1527
Tue Oct 13 10:56:10 EEST 2015 Thread[DRDAConnThread_2,5,main] Cleanup action starting
ERROR XBM0H: Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.services.monitor.StorageFactoryService.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.services.monitor.StorageFactoryService.createServiceRoot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.createPersistentService(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.createDatabase(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.getNewEmbedConnection(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.EmbeddedDriver.connect(Unknown Source)
at org.apache.derby.impl.drda.Database.makeConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
Cleanup action completed
Tue Oct 13 10:56:10 EEST 2015 Thread[DRDAConnThread_2,5,main] Cleanup action starting
java.sql.SQLException: Failed to create database 'sample', see the next exception for details.
at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.seeNextException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.createDatabase(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.getNewEmbedConnection(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.EmbeddedDriver.connect(Unknown Source)
at org.apache.derby.impl.drda.Database.makeConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
Caused by: ERROR XJ041: Failed to create database 'sample', see the next exception for details.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.jdbc.SQLExceptionFactory.wrapArgsForTransportAcrossDRDA(Unknown Source)
... 16 more
Caused by: ERROR XBM0H: Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.services.monitor.StorageFactoryService.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.services.monitor.StorageFactoryService.createServiceRoot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.createPersistentService(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.createPersistentService(Unknown Source)
... 13 more
============= begin nested exception, level (1) ===========
java.sql.SQLException: Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.createDatabase(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.getNewEmbedConnection(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.EmbeddedDriver.connect(Unknown Source)
at org.apache.derby.impl.drda.Database.makeConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
Caused by: ERROR XBM0H: Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.services.monitor.StorageFactoryService.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.services.monitor.StorageFactoryService.createServiceRoot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.createPersistentService(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.createPersistentService(Unknown Source)
... 13 more
============= end nested exception, level (1) ===========
============= begin nested exception, level (2) ===========
ERROR XBM0H: Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
at org.apache.derby.impl.services.monitor.StorageFactoryService.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.services.monitor.StorageFactoryService.createServiceRoot(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.bootService(Unknown Source)
at org.apache.derby.impl.services.monitor.BaseMonitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.createPersistentService(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.createPersistentService(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.createDatabase(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.getNewEmbedConnection(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.InternalDriver.connect(Unknown Source)
at org.apache.derby.jdbc.EmbeddedDriver.connect(Unknown Source)
at org.apache.derby.impl.drda.Database.makeConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.getConnFromDatabaseName(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.verifyUserIdPassword(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseSECCHK(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.parseDRDAConnection(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Source)
at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
============= end nested exception, level (2) ===========
Cleanup action completed
Tue Oct 13 10:56:10 EEST 2015 Thread[DRDAConnThread_2,5,main] (DATABASE = sample), (DRDAID = {1}), Failed to create database 'sample', see the next exception for details.
Tue Oct 13 10:56:10 EEST 2015 Thread[DRDAConnThread_2,5,main] (DATABASE = sample), (DRDAID = {1}), Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created.
日志条目指出：
Directory C:\Program Files\Java\jdk1.8.0_45\db\bin\sample cannot be created
据我所知，这可能是 network server 进程没有足够权限在 C:\Program Files\Java\jdk1.8.0_45\db\bin\ 中创建目录的权限问题。您可以尝试以管理员身份运行。
从您的异常堆栈跟踪来看，您的 Derby 网络服务器进程似乎是在文件夹 C:\Program Files\Java\jdk1.8.0_45\db\bin\ 中启动的，并且该进程似乎没有在该文件夹中写入（Derby 数据库）文件的权限。尝试找到 Derby 服务器进程有权写入文件的文件夹。您可以在 Derby 连接 URL 中指定 windows 驱动器号和路径。只需确保将任何反斜杠 \ 转换为正斜杠 / 或像这样转义它们 \。因此，例如，如果您知道 Derby 服务器进程可以写入 d:\temp 文件夹，那么您可以将命令编写为
ij> connect jdbc:derby://localhost:1527/d:/temp/sample;create=true
或
ij> connect jdbc:derby://localhost:1527/d:\temp\sample;create=true
使用 Derby 时当心替代驱动器 - 如果将数据库放在替代驱动器上，它将无法工作，并且您会在日志中遇到令人困惑的 nio 异常和 class 转换错误。所以这不有效：
connect 'jdbc:derby://localhost:1527/t:/DerbyDB;create=true';
其中 t 被替换。指向驱动器 c 的相同命令确实有效：
connect 'jdbc:derby://localhost:1527/c:/DerbyDB;create=true';
在 Derby 站点上有对这些问题的讨论，但可能不是所有情况下都已解决？包括数据库本身在替代驱动器上的位置。我目前使用的是版本 10.10.2.0