SQLNonTransientConnectionException - 新的连接配置文件

Question

我想制作一个适用于网络的超级简单控制台应用程序。我正在使用一个简单的maven项目，我已经为其添加了derbyclient依赖项（在此阶段项目中没有有用的代码）。我也有tomcat 8运行。

当我尝试通过数据源资源管理器获取连接配置文件时，我收到错误消息。图片清晰：

我已经搜索了解决方案并获得了一些点击，但它们并没有太大帮助。我知道这个问题可能很愚蠢，但我对这些东西不熟悉，所以我不知道如何解决这个问题。欢迎任何帮助！

详细的错误说明如下：

java.sql.SQLNonTransientConnectionException: java.net.ConnectException : Error connecting to server localhost on port 1 527 with message Connection refused: connect.
at org.apache.derby.client.am.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source)
at org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.createConnection(JDBCConnection.java:328)
at org.eclipse.datatools.connectivity.apache.internal.derby.connection.DerbyEmbeddedJDBCConnection.createConnection(DerbyEmbeddedJDBCConnection.java:137)
at org.eclipse.datatools.connectivity.DriverConnectionBase.internalCreateConnection(DriverConnectionBase.java:105)
at org.eclipse.datatools.connectivity.DriverConnectionBase.open(DriverConnectionBase.java:54)
at org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.open(JDBCConnection.java:96)
at org.eclipse.datatools.connectivity.apache.internal.derby.connection.DerbyJDBCConnectionFactory.createConnection(DerbyJDBCConnectionFactory.java:32)
at org.eclipse.datatools.connectivity.internal.ConnectionFactoryProvider.createConnection(ConnectionFactoryProvider.java:83)
at org.eclipse.datatools.connectivity.internal.ConnectionProfile.createConnection(ConnectionProfile.java:359)
at org.eclipse.datatools.connectivity.ui.PingJob.createTestConnection(PingJob.java:76)
at org.eclipse.datatools.connectivity.ui.PingJob.run(PingJob.java:59)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: ERROR 08001: java.net.ConnectException : Error connecting to server localhost on port 1 527 with message Connection refused: connect.
at org.apache.derby.client.net.NetAgent.<init>(Unknown Source)
at org.apache.derby.client.net.NetConnection.newAgent_(Unknown Source)
at org.apache.derby.client.am.ClientConnection.<init>(Unknown Source)
at org.apache.derby.client.net.NetConnection.<init>(Unknown Source)
at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl.newNetConnection(Unknown Source)
... 12 more
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at javax.net.DefaultSocketFactory.createSocket(Unknown Source)
at org.apache.derby.client.net.OpenSocketAction.run(Unknown Source)
at org.apache.derby.client.net.OpenSocketAction.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
... 17 more

PS：感谢Brayan，我已经启动了网络服务器。但是知道我得到了错误：

java.sql.SQLNonTransientConnectionException: DERBY SQL error: ERRORCODE: 40000, SQLSTATE: XJ041, SQLERRMC: Failed to create database 'MyDB', see the next exception for details.::SQLSTATE: XBM0H
at org.apache.derby.client.am.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source)
at org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.createConnection(JDBCConnection.java:328)
at org.eclipse.datatools.connectivity.apache.internal.derby.connection.DerbyEmbeddedJDBCConnection.createConnection(DerbyEmbeddedJDBCConnection.java:137)
at org.eclipse.datatools.connectivity.DriverConnectionBase.internalCreateConnection(DriverConnectionBase.java:105)
at org.eclipse.datatools.connectivity.DriverConnectionBase.open(DriverConnectionBase.java:54)
at org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.open(JDBCConnection.java:96)
at org.eclipse.datatools.connectivity.apache.internal.derby.connection.DerbyJDBCConnectionFactory.createConnection(DerbyJDBCConnectionFactory.java:32)
at org.eclipse.datatools.connectivity.internal.ConnectionFactoryProvider.createConnection(ConnectionFactoryProvider.java:83)
at org.eclipse.datatools.connectivity.internal.ConnectionProfile.createConnection(ConnectionProfile.java:359)
at org.eclipse.datatools.connectivity.ui.PingJob.createTestConnection(PingJob.java:76)
at org.eclipse.datatools.connectivity.ui.PingJob.run(PingJob.java:59)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: ERROR XJ041: DERBY SQL error: ERRORCODE: 40000, SQLSTATE: XJ041, SQLERRMC: Failed to create database 'MyDB', see the next exception for details.::SQLSTATE: XBM0H
at org.apache.derby.client.am.ClientConnection.completeSqlca(Unknown Source)
at org.apache.derby.client.net.NetConnectionReply.parseRdbAccessFailed(Unknown Source)
at org.apache.derby.client.net.NetConnectionReply.parseAccessRdbError(Unknown Source)
at org.apache.derby.client.net.NetConnectionReply.parseACCRDBreply(Unknown Source)
at org.apache.derby.client.net.NetConnectionReply.readAccessDatabase(Unknown Source)
at org.apache.derby.client.net.NetConnection.readSecurityCheckAndAccessRdb(Unknown Source)
at org.apache.derby.client.net.NetConnection.flowSecurityCheckAndAccessRdb(Unknown Source)
at org.apache.derby.client.net.NetConnection.flowUSRIDPWDconnect(Unknown Source)
at org.apache.derby.client.net.NetConnection.flowConnect(Unknown Source)
at org.apache.derby.client.net.NetConnection.<init>(Unknown Source)
at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl.newNetConnection(Unknown Source)
... 12 more

此外，当我尝试通过ij建立连接时，注释中的链接中显示了该连接，我收到错误：ij> connect 'jdbc:derby://localhost:1527/sample;create=true'; 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有任何想法如何修复它？