SQLNonTransientConnectionException – 新的连接配置文件

我想创建一个在网络上工作的超级简单的控制台应用程序。 我正在使用一个简单的maven项目，我已经添加了derbyclient依赖项（在这个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。 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。 我知道问题可能是愚蠢的，但我是新手，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.(Unknown Source) at org.apache.derby.client.net.NetConnection.newAgent_(Unknown Source) at org.apache.derby.client.am.ClientConnection.(Unknown Source) at org.apache.derby.client.net.NetConnection.(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.(Unknown Source) at java.net.Socket.(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.(Unknown Source) at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl.newNetConnection(Unknown Source) ... 12 more 

而且当我尝试通过ij建立连接时，它显示在注释中的链接中我得到错误： 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 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任何想法如何修复它？