ORA-12519，TNS:找不到合适的服务处理程序

Question

我正在正确地关闭hibernate连接，但是在一些点击或页面刷新之后，我得到了这个错误。我不明白是什么问题。我还检查了会话的数量，它也是通过以下命令和程序代码增加的：

Managedbean代码：

public List<TrxFile> getFileDetails() {
        //SessionFactory sf = HibernateUtill.HibernateUtil.getSessionFactory();
        Session sess = HibernateUtill.HibernateUtil.getSessionFactory().openSession();
        java.util.List l = null;
        try {
            Query q = sess.createQuery("from Files");
            l = q.list();
            Iterator itr = l.iterator();

            return l;
        } catch (HibernateException hbx) {
            hbx.printStackTrace();
        } finally {
            sess.flush();
            sess.clear();
            sess.close();
            //sf.close();
            HibernateUtill.HibernateUtil.getSessionFactory().close();
        }
        return l;
    }

错误：

ERROR:   Listener refused the connection with the following error:
ORA-12519, TNS:no appropriate service handler found
The Connection descriptor used by the client was:
localhost:1521:XE

更详细的错误：

WARN:   HHH000342: Could not obtain connection to query metadata : Listener refused the connection with the following error:
ORA-12519, TNS:no appropriate service handler found
The Connection descriptor used by the client was:
localhost:1521:XE

Info:   HHH000400: Using dialect: org.hibernate.dialect.OracleDialect
WARN:   HHH000063: The Oracle9Dialect dialect has been deprecated; use either Oracle9iDialect or Oracle10gDialect instead
WARN:   HHH000064: The OracleDialect dialect has been deprecated; use Oracle8iDialect instead
Info:   HHH000422: Disabling contextual LOB creation as connection was null
Info:   HHH000399: Using default transaction strategy (direct JDBC transactions)
Info:   HHH000397: Using ASTQueryTranslatorFactory
WARN:   SQL Error: 0, SQLState: null
ERROR:   Listener refused the connection with the following error:
ORA-12519, TNS:no appropriate service handler found
The Connection descriptor used by the client was:
localhost:1521:XE

Info:   HHH000043: Configuring from resource: /hibernate.cfg.xml
Info:   HHH000040: Configuration resource: /hibernate.cfg.xml
WARN:   HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
Info:   HHH000221: Reading mappings from resource: Pojos/TrxTender.hbm.xml
Info:   HHH000221: Reading mappings from resource: Pojos/CfgPaths.hbm.xml
Severe:   org.hibernate.exception.GenericJDBCException: Could not open connection
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
    at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:221)
    at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:157)
    at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.connection(StatementPreparerImpl.java:56)
    at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:161)
    at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:182)
    at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:159)
    at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1859)
    at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1836)
    at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1816)
    at org.hibernate.loader.Loader.doQuery(Loader.java:900)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:342)
    at org.hibernate.loader.Loader.doList(Loader.java:2526)
    at org.hibernate.loader.Loader.doList(Loader.java:2512)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2342)
    at org.hibernate.loader.Loader.list(Loader.java:2337)
    at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:495)
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:357)
    at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:195)
    at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1269)
    at org.hibernate.internal.QueryImpl.list(QueryImpl.java:101)
    at ManagedBean.FileUpload.getFileDetails(FileUpload.java:560)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at javax.el.BeanELResolver.getValue(BeanELResolver.java:363)
    at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
    at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
    at com.sun.el.parser.AstValue.getValue(AstValue.java:140)
    at com.sun.el.parser.AstValue.getValue(AstValue.java:204)
    at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:226)
    at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
    at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
    at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
    at javax.faces.component.UIData.getValue(UIData.java:732)
    at org.primefaces.component.api.UIData.getDataModel(UIData.java:629)
    at javax.faces.component.UIData.getRowCount(UIData.java:356)
    at org.primefaces.component.api.UIData.calculateFirst(UIData.java:175)
    at org.primefaces.component.datatable.DataTableRenderer.preRender(DataTableRenderer.java:115)
    at org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:83)
    at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:924)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
    at javax.faces.render.Renderer.encodeChildren(Renderer.java:176)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:894)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:443)
    at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:344)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:72)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:316)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.sql.SQLException: Listener refused the connection with the following error:
ORA-12519, TNS:no appropriate service handler found
The Connection descriptor used by the client was:
localhost:1521:XE
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:145)
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:380)
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:401)
    at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:441)
    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
Severe:   :839)
    at org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl.getConnection(DriverManagerConnectionProviderImpl.java:204)
    at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:292)
    at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:214)
    ... 84 more

用于查找当前会话的命令：

SELECT COUNT(*)
  FROM v$session;

尽管会议正常闭幕，但它的增长有人能帮助plzz吗？

Answer 1

确保您的oracle监听器提供服务'XE‘

  [bbrandt@limbo] ~/ $ lsnrctl status | grep XE
    Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
    Default Service           XE
      (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
    Service "XE" has 1 instance(s).
      Instance "XE", status READY, has 1 handler(s) for this service...
    Service "XEXDB" has 1 instance(s).
      Instance "XE", status READY, has 1 handler(s) for this service...
    [bbrandt@limbo] ~/ $

在尝试任何其他客户端应用程序之前，请确保能够通过sqlplus连接到服务：

sqlplus username/password@localhost:1521/XE

注意！始终使用SERVICE_NAME (主机名:1521/SERVICE_NAME)连接到oracle数据库。正在使用SID (主机名:1521:SID)连接到oracle数据库...仅仅在15年前甲骨文就不鼓励这么做了！

Answer 2

在您的终端尝试此解决方案。这对我很管用。在try/catch块中关闭连接，并在关闭连接后编写Thread.sleep(1000);

您可以按如下方式编写：

finally {
    try {
        if (conn != null && !conn.isClosed())
            {
            conn.close();
            Thread.sleep(1000);
             }
        }
    catch (SQLException e) {
        e.printStackTrace();
    }
}

Answer 3

我也面临着同样的问题。出现此错误的原因如下：

1. 连接未长时间关闭或空闲。因此，oracle中的进程将超过context.xml (apache Tomcat)中的limit.
2. Non-optimistic池配置。

我为解决此问题所遵循的步骤如下：

check are of are>使用select * from 'processes';

• Click resource_name = jdk PerformGC按钮检查当前进程数。jconsole.exe中的select*from resource_name=jdk PerformGC按钮可在安装jdk的folder.By的bin文件夹中找到。执行此操作后，未关闭的空闲连接将被垃圾收集。

如果以上步骤不能解决您的问题，您可以尝试在context.xml(apache tomcat)中减少maxIdle (应始终保留在池中的最大连接数.)

注意:如果堆大小更大，则可能会消耗更多来自大型永久对象的db进程。