java.sql.SQLException: Io 异常: The Network Adapter could not establish the connection

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日志如下，web项目发布报错，怀疑是数据库连接不上，用客户端工具登录，确实是数据没有启动导致的。小记一下。

main [ProxoolDriver.java:92] Problem

java.sql.SQLException: Io 异常: The Network Adapter could not establish the connection
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:180)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:222)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:335)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:361)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:442)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:321)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:154)
at org.logicalcobwebs.proxool.ProxyFactory.buildProxyConnection(ProxyFactory.java:41)
at org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:150)
at org.logicalcobwebs.proxool.PrototyperController.buildConnection(PrototyperController.java:88)
at org.logicalcobwebs.proxool.ConnectionPool.getConnection(ConnectionPool.java:222)
at org.logicalcobwebs.proxool.ProxoolDriver.connect(ProxoolDriver.java:89)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:207)
at org.hibernate.connection.ProxoolConnectionProvider.getConnection(ProxoolConnectionProvider.java:53)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:72)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1463)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1004)
at com.hibernate.SessionFactory.currentSession(SessionFactory.java:53)
at com.vc.serverManager.task.SystemManager.InitPara(SystemManager.java:41)
at com.vc.serverManager.task.SystemManager.contextInitialized(SystemManager.java:76)
at com.caucho.server.webapp.Application.start(Application.java:1592)
at com.caucho.server.deploy.DeployController.startImpl(DeployController.java:587)
at com.caucho.server.deploy.StartAutoRedeployAutoStrategy.startOnInit(StartAutoRedeployAutoStrategy.java:72)
at com.caucho.server.deploy.DeployController.startOnInit(DeployController.java:475)
at com.caucho.server.deploy.DeployContainer.start(DeployContainer.java:158)
at com.caucho.server.webapp.ApplicationContainer.start(ApplicationContainer.java:651)
at com.caucho.server.host.Host.start(Host.java:385)
at com.caucho.server.deploy.DeployController.startImpl(DeployController.java:587)
at com.caucho.server.deploy.StartAutoRedeployAutoStrategy.startOnInit(StartAutoRedeployAutoStrategy.java:72)
at com.caucho.server.deploy.DeployController.startOnInit(DeployController.java:475)
at com.caucho.server.deploy.DeployContainer.start(DeployContainer.java:158)
at com.caucho.server.host.HostContainer.start(HostContainer.java:467)
at com.caucho.server.resin.ServletServer.start(ServletServer.java:945)
at com.caucho.server.deploy.DeployController.startImpl(DeployController.java:587)
at com.caucho.server.deploy.AbstractDeployControllerStrategy.start(AbstractDeployControllerStrategy.java:56)
at com.caucho.server.deploy.DeployController.start(DeployController.java:483)
at com.caucho.server.resin.ResinServer.start(ResinServer.java:478)
at com.caucho.server.resin.Resin.init(Resin.java)
at com.caucho.server.resin.Resin.main(Resin.java:623)

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