quartz报错 java.sql.SQLException: Timed out waiting for a free available connection.

整合项目 将quartz和mysql合并为一个DataSource ``` 2020-01-07 11:44:10.162 [schedulerFactoryBean_QuartzSchedulerThread] ERROR [org.quartz.core.ErrorLogger-2460] An error occurred while scanning for the next triggers to fire. org.quartz.JobPersistenceException: Failed to obtain DB connection from data source 'springNonTxDataSource.schedulerFactoryBean': java.sql.SQLException: Timed out waiting for a free available connection. at org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:168) at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3774) at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTriggers(JobStoreSupport.java:2759) at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:264) Caused by: java.sql.SQLException: Timed out waiting for a free available connection. at com.jolbox.bonecp.BoneCP.getConnection(BoneCP.java:503) at com.jolbox.bonecp.BoneCPDataSource.getConnection(BoneCPDataSource.java:114) at org.springframework.scheduling.quartz.LocalDataSourceJobStore$2.getConnection(LocalDataSourceJobStore.java:135) at org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:108) at org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:165) ... 3 common frames omitted ```

java.sql.SQLException: Io 异常: 连接超时

帮我看看咋回事啊？我搞不懂。就是运行很久的一个项目，最近突然就动不动就登陆不了，然后连首页都显示不出来了。然后只能重启服务，就又没问题了。老师需要重启。帮我看看日志全是这个，是什么意思啊？ ERROR 2013-12-06 13:12:20,831 org.logicalcobwebs.proxool.GAP-Pool #0041 encountered errors during destruction: java.sql.SQLException: Io 异常: 连接超时 at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:74) at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:131) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:197) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:261) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:566) at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:500) at oracle.jdbc.driver.PhysicalConnection.close(PhysicalConnection.java:3509) at org.logicalcobwebs.proxool.ProxyConnection.reallyClose(ProxyConnection.java:192) at org.logicalcobwebs.proxool.ConnectionPool.removeProxyConnection(ConnectionPool.java:427) at org.logicalcobwebs.proxool.HouseKeeper.sweep(HouseKeeper.java:139) at org.logicalcobwebs.proxool.HouseKeeperThread.run(HouseKeeperThread.java:39) Caused by: java.net.SocketException: 连接超时 at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:129) at oracle.net.ns.Packet.receive(Packet.java:240) at oracle.net.ns.DataPacket.receive(DataPacket.java:92) at oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:172) at oracle.net.ns.NetInputStream.read(NetInputStream.java:117) at oracle.net.ns.NetInputStream.read(NetInputStream.java:92) at oracle.net.ns.NetInputStream.read(NetInputStream.java:77) at oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1034) at oracle.jdbc.driver.T4CMAREngine.unmarshalSB1(T4CMAREngine.java:1010) at oracle.jdbc.driver.T4C7Ocommoncall.receive(T4C7Ocommoncall.java:97) at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:487) ... 5 more

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

java.sql.SQLException: Io 异常: The Network Adapter could not establish the connection at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:125) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:162) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:274) at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:319) at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:344) at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:148) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:545) at java.sql.DriverManager.getConnection(DriverManager.java:512) at java.sql.DriverManager.getConnection(DriverManager.java:171) at grp.sys.db.DBUtils.createConnection(DBUtils.java:55) at grp.doc.DocHelper.getDicToHashMap(DocHelper.java:422) at jsp_servlet._main.__junei._jspService(junei.jsp:137) at weblogic.servlet.jsp.JspBase.service(JspBase.java:33) at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1006) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419) at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27) at grp.util.HibernateFilter.doFilter(HibernateFilter.java:16) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6724) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3764) at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2644) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178) 最近的一个在使用的项目经常出现上面的异常，求解决方案。。 主要由什么引起，怎么解决？？

java.sql.SQLException: ORA-24335: 无法支持 1000 列以上 怎么解决？？

java.sql.SQLException: ORA-24335: 无法支持 1000 列以上

java.sql.SQLException: Parameter index out of range (1 > number of parameters, w

[code="java"]public class Register { public static boolean register(String name, String password) throws SQLException, ClassNotFoundException { Class.forName("com.mysql.jdbc.Driver"); Connection cn = DriverManager.getConnection ("jdbc:mysql://localhost/test", "root", "179401"); PreparedStatement pst = cn.prepareStatement ("select * from temp"); ResultSet rs = pst.executeQuery(); while (rs.next()) { if (rs.getString(1).equals(name)) { System.out.println("The username " + name + " has already existed!"); return false; } } pst.setString(1, name); pst.setString(2, password); cn.close(); return true; } }[/code] 异常 java.sql.SQLException: Parameter index out of range (1 > number of parameters, which is 0). com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075) com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984) com.mysql.jdbc.SQLError.createSQLException(SQLError.java:929) com.mysql.jdbc.PreparedStatement.checkBounds(PreparedStatement.java:3711) com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3695) com.mysql.jdbc.PreparedStatement.setString(PreparedStatement.java:4546) com.v.registration.Register.register(Register.java:22) com.v.registration.RegisterAction.execute(RegisterAction.java:9) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:441) com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:280) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:243) com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:165) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:252) org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:179) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:130) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:165) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:179) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237) org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52) org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488) org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77) org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

java.sql.SQLException: Io 异常: Broken pipe 大大们帮忙 十万火JI！！

SSH程序 tomcat proxool连接池 配置如下： <proxool-config> <proxool> <alias>DBPool</alias> <driver-url>jdbc:oracle:thin:@(description=(address_list= (address=(host=*****)(protocol=tcp)(port=1521)) (address=(host=*****)(protocol=tcp)(port=1521)) (load_balance=yes)) (connect_data=(server=dedicated)(service_name=ORCL))) </driver-url> <driver-class>oracle.jdbc.driver.OracleDriver</driver-class> <driver-properties> <property name="user" value="****"/> <property name="password" value="****"/> </driver-properties> <house-keeping-sleep-time>90000</house-keeping-sleep-time> <maximum-new-connections>20</maximum-new-connections> <prototype-count>15</prototype-count> <maximum-connection-count>80</maximum-connection-count> <minimum-connection-count>10</minimum-connection-count> <house-keeping-test-sql>select 1 from dual</house-keeping-test-sql> <maximum-active-time>1200000</maximum-active-time> <trace>true</trace> <verbose>true</verbose> </proxool> </proxool-config> 上线运行一周左右 orcle数据库就倒 大家帮分析下啊 日志信息如下： [ERROR] 21 七月 11:16:43.338 下午 HouseKeeper [org.logicalcobwebs.proxool.DBPool] #0048 encountered errors during destruction: java.sql.SQLException: Io 异常: Broken pipe at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255) at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:481) at oracle.jdbc.driver.PhysicalConnection.close(PhysicalConnection.java:1228) at org.logicalcobwebs.proxool.ProxyConnection.reallyClose(ProxyConnection.java:192) at org.logicalcobwebs.proxool.ConnectionPool.removeProxyConnection(ConnectionPool.java:423) at org.logicalcobwebs.proxool.HouseKeeper.sweep(HouseKeeper.java:90) at org.logicalcobwebs.proxool.HouseKeeperThread.run(HouseKeeperThread.java:39) [ERROR] 21 七月 11:16:43.347 下午 HouseKeeper [org.logicalcobwebs.proxool.DBPool] #0050 encountered errors during destruction: java.sql.SQLException: 无法从套接字读取更多的数据 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:208) at oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1123) at oracle.jdbc.driver.T4CMAREngine.unmarshalSB1(T4CMAREngine.java:1075) at oracle.jdbc.driver.T4C7Ocommoncall.receive(T4C7Ocommoncall.java:106) at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:465) at oracle.jdbc.driver.PhysicalConnection.close(PhysicalConnection.java:1228) at org.logicalcobwebs.proxool.ProxyConnection.reallyClose(ProxyConnection.java:192) at org.logicalcobwebs.proxool.ConnectionPool.removeProxyConnection(ConnectionPool.java:423) at org.logicalcobwebs.proxool.HouseKeeper.sweep(HouseKeeper.java:90) at org.logicalcobwebs.proxool.HouseKeeperThread.run(HouseKeeperThread.java:39) [ERROR] 21 七月 11:16:43.358 下午 HouseKeeper [org.logicalcobwebs.proxool.DBPool]

java.sql.SQLException: ORA-01441: 无法减小列长度, 因为一些值过大

java.sql.SQLException: ORA-01441: 无法减小列长度, 因为一些值过大 ORA-06512: 在 line 1 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288) at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:743) at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:213) at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:952) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1160) at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3285) at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3390) at com.ces.config.utils.DatabaseUpdate.updateAuthDataBase(DatabaseUpdate.java:101) at com.ces.config.servlet.AppInitServlet.init(AppInitServlet.java:104) at javax.servlet.GenericServlet.init(GenericServlet.java:160) at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1193) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5176) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5460) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1113) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1671) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)

java.sql.SQLException: ORA-01002: 读取违反顺序 大家帮我看看

[code="java"] public void insertImage(Image image) { Connection conn = null; Statement stat = null; ResultSet rs = null; OutputStream out = null; try { conn = DBManager.getConnection(); stat = conn.createStatement(); byte[] data = convertImage(image); String sql1 = "INSERT INTO PHOTO(ID,NAME,IMAGE) VALUES(1,'TEST',EMPTY_BLOB())"; stat.execute(sql1); String sql2 = "SELECT IMAGE FROM PHOTO WHERE ID=1 FOR UPDATE"; rs = stat.executeQuery(sql2); if(rs.next()) { BLOB blob = (BLOB)rs.getBlob("IMAGE"); out = blob.getBinaryOutputStream(); try { out.write(data,0,data.length); } catch(IOException e) { e.printStackTrace(); } } } catch(SQLException e) { e.printStackTrace(); } finally { try { if(out != null) out.close(); if(rs != null) rs.close(); if(stat != null) stat.close(); if(conn != null) conn.close(); } catch(SQLException e) { e.printStackTrace(); } catch(IOException e) { e.printStackTrace(); } } } [/code] 程序运行到 [code="java"]rs = stat.executeQuery(sql2);[/code] 就会抛出 [code="java"] java.sql.SQLException: ORA-01002: 读取违反顺序 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134) at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289) at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:573) at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1891) at oracle.jdbc.ttc7.TTC7Protocol.fetch(TTC7Protocol.java:1198) at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:2400) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2672) at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:572) at com.computech.takepic.common.ImageDAO.insertImage(ImageDAO.java:39) at com.computech.takepic.common.TestJMF$1.actionPerformed(TestJMF.java:104) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3093) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1766) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110) [/code] 请大家帮我看下，谢谢。

java.sql.SQLException: No value specified for parameter 5

数据库连接成功！ java.sql.SQLException: No value specified for parameter 5 at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1086) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920) at com.mysql.jdbc.PreparedStatement.checkAllParametersSet(PreparedStatement.java:2594) at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:2569) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2415) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2366) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2350) at com.ShoppingC.dao.ProductDao.insertPro(ProductDao.java:113) at org.apache.jsp.proADDCtrl_jsp._jspService(proADDCtrl_jsp.java:148) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1156) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1539) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1495) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:844) 总是报这个错误 public int insertPro(Product pro) { int flag=0; String sql="INSERT INTO product(proName,proDetail,price) VALUES(?,?,?)"; try { pstmt=conn.prepareStatement(sql); pstmt.setString(1, pro.getProName()); pstmt.setString(2, pro.getProDetail()); pstmt.setDouble(3, pro.getPrice()1); flag=pstmt.executeUpdate(); System.out.println("商品添加成功！"); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } return flag; }

Cause: java.sql.SQLException: ORA-06550: 第 1 行, 第 7 列:

在服务器上执行程序报如下错误： Error querying database. Cause: java.sql.SQLException: ORA-06550: 第 1 行, 第 7 列: PLS-00201: identifier 'IREVIEW.PROC_ECREDIT_INTEGRATION' must be declared 在开发环境执行IREVIEW.PROC_ECREDIT_INTEGRATION存储过程不会发生报错，那位哥哥知道什么原因？交兄弟一下，十分感谢

java.sql.SQLException: ORA-28040: 没有匹配的验证协议

2019-12-14 16:54:51,024 666517 [bio-8888-exec-7] DEBUG .web.servlet.DispatcherServlet - DispatcherServlet with name 'dispatcherServlet' processing GET request for [/travel_web/product/findAll1.do] 2019-12-14 16:54:51,024 666517 [bio-8888-exec-7] DEBUG n.RequestMappingHandlerMapping - Looking up handler method for path /product/findAll1.do 2019-12-14 16:54:51,024 666517 [bio-8888-exec-7] DEBUG n.RequestMappingHandlerMapping - Returning handler method [public java.util.List<com.tvl.domain.Product> com.tvl.web.controller.ProductController.findAll1()] 2019-12-14 16:54:51,024 666517 [bio-8888-exec-7] DEBUG ort.DefaultListableBeanFactory - Returning cached instance of singleton bean 'productController' 2019-12-14 16:54:51,024 666517 [bio-8888-exec-7] DEBUG .web.servlet.DispatcherServlet - Last-Modified value for [/travel_web/product/findAll1.do] is: -1 controller in ...... 2019-12-14 16:54:51,025 666518 [bio-8888-exec-7] DEBUG e.DataSourceTransactionManager - Creating new transaction with name [com.tvl.service.impl.ProductServiceImpl.findAll]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; '' 2019-12-14 16:55:05,058 680551 [reate-685899154] ERROR aba.druid.pool.DruidDataSource - create connection error java.sql.SQLException: ORA-28040: 没有匹配的验证协议 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:283) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:278) at oracle.jdbc.driver.T4CTTIoauthenticate.receiveOsesskey(T4CTTIoauthenticate.java:288) at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:357) at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:414) at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1375) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1431) at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:1844)

Could not obtain connection metadata java.sql.SQLException: Io exception

启动tomcat的时候就报下面的错。求大神指引。。。。。。。 谢谢 [INFO] - Initializing connection provider: org.springframework.orm.hibernate3.TransactionAwareDataSourceConnectionProvider 2013-07-08 16:20:18.933 [main] org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:140) [WARN] - Could not obtain connection metadata java.sql.SQLException: Io exception: The Network Adapter could not establish the connection at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:125) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:162) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:274) at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:328) at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:361) at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:151) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:595) at java.sql.DriverManager.getConnection(DriverManager.java:582) at java.sql.DriverManager.getConnection(DriverManager.java:154) at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:174) at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:165) at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:149) at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:119) at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:113) at org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy$TransactionAwareInvocationHandler.invoke(TransactionAwareDataSourceProxy.java:210) at $Proxy19.getMetaData(Unknown Source) at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:116) at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2833) at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2829) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1840) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:814) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:732) at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1368) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1334) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:269) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:269) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4172) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4671) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061) at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:701) at org.apache.catalina.startup.Catalina.start(Catalina.java:585) 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:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

java.sql.SQLException: "Too many connections"

org.hibernate.exception.JDBCConnectionException: Cannot open connection OperateDatabase.java queryAll(String hql)查询结果出来啦 at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:97) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52) at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449) at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167) at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161) at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1577) at org.hibernate.loader.Loader.doQuery(Loader.java:696) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259) at org.hibernate.loader.Loader.doList(Loader.java:2232) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2129) at org.hibernate.loader.Loader.list(Loader.java:2124) at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:312) at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1723) at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165) at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:175) at hibernate.OperateDatabase.querySql(OperateDatabase.java:128) at socket.Server$1.run(Server.java:225) at java.lang.Thread.run(Unknown Source) Caused by: java.sql.SQLException: Data source rejected establishment of connection, message from server: "Too many connections" at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1018) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2568) at com.mysql.jdbc.Connection.<init>(Connection.java:1485) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:133) at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446) ... 15 more Exception in thread "Thread-27" java.lang.NullPointerException at socket.Server$1.run(Server.java:226) at java.lang.Thread.run(Unknown Source) ClientThread.java线程睡眠1000毫秒=1秒 ClientThread.java从客户端发来的聊天内容：{"actiontype":"1","receverName":"192.168.0.107","msgType":false,"senderName":"192.168.0.108","chatDate":"2017-03-03 18:21:08"} ClientThread.java动作类型1 Exception in thread "Thread-25" org.hibernate.exception.JDBCConnectionException: Cannot open connection at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:97) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52) at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449) at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167) at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161) at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1577) at org.hibernate.loader.Loader.doQuery(Loader.java:696) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259) at org.hibernate.loader.Loader.doList(Loader.java:2232) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2129) at org.hibernate.loader.Loader.list(Loader.java:2124) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:401) at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:363) at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1149) at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102) at hibernate.OperateDatabase.query(OperateDatabase.java:87) at chat.ClientThread.run(ClientThread.java:111) Caused by: java.sql.SQLException: Data source rejected establishment of connection, message from server: "Too many connections" at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1018) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2568) at com.mysql.jdbc.Connection.<init>(Connection.java:1485) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:133) at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446) ... 15 more hibernate.hbm.xml文件内容，注释部分是连接池，但貌似使用也不管事 <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <!-- mysql 数据库驱动 --> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <!-- mysql 数据库名 myandroid 端口3306 --> <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/myandroid?useUnicode=true&amp;characterEncoding=utf-8</property> <!-- 数据的登录用户名 --> <property name="hibernate.connection.username">root</property> <!-- 数据库的登录秘密 --> <property name="hibernate.connection.password">admin</property> <!-- 下面这一行很重要， 如果hibernate.connection.provider_class没有定义,就会使用内置的连接池，所以如果不想用hibernate内置的连接池，下面这一行必须要写的 --> <!-- <property name="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property> <property name="hibernate.c3p0.max_size">20</property> <property name="hibernate.c3p0.min_size">5</property> <property name="hibernate.c3p0.timeout">120</property> <property name="hibernate.c3p0.max_statements">100</property> <property name="hibernate.c3p0.idle_test_period">120</property> <property name="hibernate.c3p0.acquire_increment">2</property> --> <!-- 方言：为每一种数据库提供适配器，方便转换 --> <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> <!-- 2，其他配置 --> <property name="show_sql">true</property> <property name="hbm2ddl.auto">update</property> <!-- 所有的表映射XML文件必须在此录入 导入映射文件--> <mapping resource="hibernate/Customer.hbm.xml"/> <mapping resource="hibernate/ChatLog.hbm.xml"/> <mapping resource="hibernate/ChatMessage.hbm.xml"/> <mapping resource="hibernate/Pitch.hbm.xml"/> </session-factory> </hibernate-configuration>

java.sql.SQLException: An attempt by a client to checkout a Connection has timed

这是项目在启动的时候出现的错误，哪位高人可以给讲解一下啊？遇到过好多次了！！[code="java"]java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106) at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:65) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:527) at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128) at com.jdlx.common.ConnectionFactory.getConnection(ConnectionFactory.java:42) at cn.com.jdlh.supervise.ServiceDao.init(ServiceDao.java:102) at cn.com.jdlh.supervise.servlet.Data2XMLServlet.init(Data2XMLServlet.java:60) at javax.servlet.GenericServlet.init(GenericServlet.java:212) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4420) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4733) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1315) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061) at org.apache.catalina.core.StandardHost.start(StandardHost.java:840) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) 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:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Caused by: com.mchange.v2.resourcepool.TimeoutException: A client timed out while waiting to acquire a resource from com.mchange.v2.resourcepool.BasicResourcePool@16d4d81 -- timeout at awaitAvailable() at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1317) at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557) at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525) ... 31 more [/code]

java.sql.SQLException ORA-04030:

批量插入6000条数据的时候，报错 java.sql.SQLException ORA-04030:在尝试分配 2024 字节 (kxs-heap-c,kghsstk) 时进程内存不足 java 数据库连接采用 org.mybatis.spring.SqlSessionFactoryBean

java.sql.SQLException: Access denied

Access denied for user 'root'@'www.bugd.net' (using password: YES) 我买了一个阿里云服务器 在本地myeclipse上的项目连接阿里云服务器上的mysql是可以的，项目可以运行，但是当我把项目移植到阿里云服务器上的tomcat上时，在通过域名访问时我的项目时出现了java.sql.SQLException: Access denied for user 'root'@'www.bugd.net' (using password: YES) 我确定用户名和密码是正确的，因为在本地运行时可以的，我只是将程序部署到阿里云服务器上，我也把权限都授权了，还是不行。。。。。哎。。。。困扰两天了

java.sql.SQLException: ORA-01006: 绑定变量不存在

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A WHERE A.RN>=?"; } //编译SQL语句 ps=conn.prepareStatement(sql); ps.setInt(1, end); ps.setInt(2,start); rs = ps.executeQuery();//结果集，只有遍历时才用 while(rs.next()){ Info info =new Info(); info.setId(rs.getInt("ID")); info.setInfo_type(rs.getString("INFO_TYPE")); info.setInfo_title(rs.getString("INFO_TITLE")); info.setInfo_content(rs.getString("INFO_CONTENT")); info.setInfo_phone(rs.getString("INFO_PHONE")); info.setInfo_linkman(rs.getString("INFO_LINKMAN")); info.setInfo_email(rs.getString("INFO_EMAIL")); list.add(info); } }catch(SQLException e){ e.printStackTrace(); }finally{ JdbcUtil.closeConn(rs, ps, conn); } return list; } Servlet的代码 else if("search".equals(flag)){ //获取left.jsp中关键字查询和条件查询 String sqlvalue=req.getParameter("sqlvalue"); String subsql=req.getParameter("subsql"); String type=req.getParameter("type"); List<Info> list=infoDao.search(sqlvalue, subsql, type); int total=list.size();//总共的条数 int totalPage=0;//总共的页数 if(total%5==0){ totalPage=total/5; }else{ totalPage=total/5+1; } /*totalPage=total%3==0?total/3:total/3+1;*/ String cp=req.getParameter("currPage"); if(cp==null||cp==""){ cp="1"; } int currPage=Integer.parseInt(cp); if(currPage<1){ currPage=1; }else if(currPage>totalPage){ currPage=totalPage; } int start=0;//开始的条数 int end=0;//结束的条数 start=(currPage-1)*5+1; end=currPage*5; //存放进searchInfo这个Dao方法里 List<Info> infolist=infoDao.searchInfo(sqlvalue, subsql, type, start, end); req.setAttribute("start", start); req.setAttribute("end", end); req.setAttribute("currPage", currPage); req.setAttribute("totalPage", totalPage); req.setAttribute("infolist", infolist); req.setAttribute("infolist", infolist); req.getRequestDispatcher("pages/show/searchshow.jsp").forward(req, resp); }

使用Mybatis的代码生成器报错java.sql.SQLException: Column 'IS_GENERATEDCOLUMN' not found.

我在使用mybatis的代码生成器生成代码的时候报错如下 ： java.sql.SQLException: Column 'IS_GENERATEDCOLUMN' not found. at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926) at com.mysql.jdbc.ResultSetImpl.findColumn(ResultSetImpl.java:1093) at com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5488) at org.mybatis.generator.internal.db.DatabaseIntrospector.getColumns(DatabaseIntrospector.java:619) at org.mybatis.generator.internal.db.DatabaseIntrospector.introspectTables(DatabaseIntrospector.java:221) at org.mybatis.generator.config.Context.introspectTables(Context.java:653) at org.mybatis.generator.api.MyBatisGenerator.generate(MyBatisGenerator.java:257) at org.mybatis.generator.api.MyBatisGenerator.generate(MyBatisGenerator.java:139) at com.Junit.Test.test(Test.java:24) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:675) at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:125) at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:132) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:124) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:74) at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115) at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:104) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:62) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:43) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:35) at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104) at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:202) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:198) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:135) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:69) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:135) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80) at java.util.ArrayList.forEach(ArrayList.java:1249) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80) at java.util.ArrayList.forEach(ArrayList.java:1249) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32) at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:229) at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$6(DefaultLauncher.java:197) at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:211) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:191) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:128) at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:74) at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) 这是我生成代码的测试类： package com.Junit; import org.mybatis.generator.api.MyBatisGenerator; import org.mybatis.generator.config.Configuration; import org.mybatis.generator.config.xml.ConfigurationParser; import org.mybatis.generator.internal.DefaultShellCallback; import org.springframework.cglib.core.DefaultGeneratorStrategy; import javax.swing.*; import java.io.File; import java.util.ArrayList; import java.util.List; public class Test { @org.junit.jupiter.api.Test public void test() throws Exception { List<String> warnings = new ArrayList<String>(); boolean overwrite = true; File configFile = new File("H:\\TestTable\\LAST\\LAST\\PageSystem\\src\\main\\resources\\generatorConfig.xml"); ConfigurationParser cp = new ConfigurationParser(warnings); Configuration config = cp.parseConfiguration(configFile); DefaultShellCallback callback = new DefaultShellCallback(overwrite); MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,callback,warnings); myBatisGenerator.generate(null); } } 这个是配置文件 <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <!-- 配置全局属性 --> <settings> <!-- 使用jdbc的getGeneratedKeys获取数据库自增主键值 --> <setting name="useGeneratedKeys" value="true" /> <!-- 使用列别名替换列名 默认:true --> <setting name="useColumnLabel" value="true" /> <!-- 开启驼峰命名转换:Table{create_time} -> Entity{createTime} --> <setting name="mapUnderscoreToCamelCase" value="true" /> </settings> <typeAliases> <package name="com.pojo"></package> </typeAliases> <!--<property name="mapperLocations" value="classpath:mapper/*"></property>--> <!--<mappers>--> <!--<mappers>--> <!--<mapper resource="mapper/GetTableDaoMapper.xml"/>--> <!--</mappers>--> <!--</mappers>--> </configuration> 今天学习mybatis想使用代码生成器生成代码，但是一直报这个错，网上也找了一些相关的错误，但是都没能解决问题，这里大神云集，希望问题能被解决，多谢。

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