java.sql.SQLException: Io 異常: Got minus one from a read call?at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:111)?at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:145)?at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:254)?at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:386)?at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:413)?at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:164)?at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:34)?at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:752)?at java.sql.DriverManager.getConnection(DriverManager.java:525)?at java.sql.DriverManager.getConnection(DriverManager.java:171)?at com.org.vdis.UpdateLicense.UpdateLicenseId(UpdateLicense.java:122)?at com.org.vdis.UpdateLicense.GetOldLicenseid(UpdateLicense.java:36)?at com.org.vdis.UpdateLicense.Update(UpdateLicense.java:14)?at com.org.vdis.Update.onClick$LicenseID(Update.java:16)?at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)?at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)?at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)?at java.lang.reflect.Method.invoke(Method.java:585)?at org.zkoss.zk.ui.impl.EventProcessor.process0(EventProcessor.java:211)?at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:143)?at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.process0(EventProcessingThreadImpl.java:485)?at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.run(EventProcessingThreadImpl.java:419) 不知道為什么報(bào)這樣的錯(cuò)誤,但是程序還可以繼續(xù)運(yùn)行。再網(wǎng)上搜索之后說數(shù)據(jù)庫連接不夠,但是使用了連接池還是有問題,想問一下出現(xiàn)這樣的問題一般是什么情況？ 程序里面需要關(guān)閉的連接都關(guān)閉了的 程序?qū)崿F(xiàn)的功能是 while(rs.next()) { //在這里調(diào)用另一個(gè)方法修改數(shù)據(jù)?,不知道是不是因?yàn)榍短琢说脑颍?}