我想换成c3p0的连接，在哪里改，druid怎么老报找不到类和无法初始化。。。
我在JFWebConfig改了没效果~~~
11:18:39.457:WARN::failed jfinal: java.lang.NoClassDefFoundError: Could not initialize class com.alibaba.druid.proxy.DruidDriver
11:18:39.457:WARN::failed
}: java.lang.NoClassDefFoundError: Could not initialize class com.alibaba.druid.proxy.DruidDriver
11:18:39.457:WARN::Error starting handlers
java.lang.NoClassDefFoundError: Could not initialize class com.alibaba.druid.proxy.DruidDriver
&at java.lang.Class.forName0(Native Method)
&at java.lang.Class.forName(Unknown Source)
&at java.sql.DriverManager.getCallerClass(Unknown Source)
&at java.sql.DriverManager.getDrivers(Unknown Source)
&at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:497)
&at java.sql.DriverManager.getConnection(Unknown Source)
&at java.sql.DriverManager.getConnection(Unknown Source)
&at org.apache.ibatis.datasource.unpooled.UnpooledDataSource.getConnection(UnpooledDataSource.java:64)
&at org.apache.ibatis.datasource.pooled.PooledDataSource.popConnection(PooledDataSource.java:349)
&at org.apache.ibatis.datasource.pooled.PooledDataSource.getConnection(PooledDataSource.java:55)
&at org.apache.ibatis.session.defaults.DefaultSqlSessionFactory.openSessionFromDataSource(DefaultSqlSessionFactory.java:73)
&at org.apache.ibatis.session.defaults.DefaultSqlSessionFactory.openSession(DefaultSqlSessionFactory.java:32)
&at org.activiti.engine.impl.db.DbSqlSession.&init&(DbSqlSession.java:86)
&at org.activiti.engine.impl.db.DbSqlSessionFactory.openSession(DbSqlSessionFactory.java:80)
&at org.activiti.engine.mandContext.getSession(CommandContext.java:179)
&at org.activiti.engine.impl.cfg.standalone.StandaloneMybatisTransactionContext.getDbSqlSession(StandaloneMybatisTransactionContext.java:77)
&at org.activiti.engine.impl.cfg.mit(StandaloneMybatisTransactionContext.java:58)
&at org.activiti.engine.mandContext.close(CommandContext.java:114)
&at org.activiti.engine.mandContextInterceptor.execute(CommandContextInterceptor.java:49)
&at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
&at org.activiti.engine.impl.ProcessEngineImpl.&init&(ProcessEngineImpl.java:77)
&at org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl.buildProcessEngine(ProcessEngineConfigurationImpl.java:283)
&at net.loyin.activiti.ActivitiServer.&clinit&(ActivitiServer.java:28)
&at java.lang.Class.forName0(Native Method)
&at java.lang.Class.forName(Unknown Source)
&at net.loyin.jFinal.plugin.ClassSearcher.findClasses(ClassSearcher.java:86)
&at net.loyin.jFinal.plugin.MyRoutesUtil.add(MyRoutesUtil.java:18)
&at net.loyin.config.JFWebConfig.configRoute(JFWebConfig.java:48)
&at com.jfinal.core.Config.configJFinal(Config.java:47)
&at com.jfinal.core.JFinal.init(JFinal.java:65)
&at com.jfinal.core.JFinalFilter.init(JFinalFilter.java:48)
&at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
&at ponent.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
&at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:713)
&at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
&at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282)
&at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518)
&at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499)
&at ponent.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
&at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
&at org.mortbay.jetty.Server.doStart(Server.java:224)
&at ponent.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
&at com.jfinal.server.JettyServer.doStart(JettyServer.java:153)
&at com.jfinal.server.JettyServer.start(JettyServer.java:82)
&at com.jfinal.core.JFinal.start(JFinal.java:160)
&at Server.main(Server.java:20)
11:18:39.504:INFO::Started
目前已经迁移到我的&
&欢迎关注我的网址Initializing c3p0 pool...加载初始化之后就不动了，可能是什么原因引起的？ - ITeye问答
[com.mchange.v2.c3p0.PoolBackedDataSource]-[INFO] Initializing c3p0 pool... com.mchange.boPooledDataSource@13a34af[ acquireIncrement -& 3, acquireRetryAttempts -& 30, acquireRetryDelay -& 1000, autoCommitOnClose -& false, automaticTestTable -& null, breakAfterAcquireFailure -& false, checkoutTimeout -& 0, connectionTesterClassName -& com.mchange.v2.c3p0.impl.DefaultConnectionTester, description -& null, driverClass -& oracle.jdbc.driver.OracleDriver, factoryClassLocation -& null, forceIgnoreUnresolvedTransactions -& false, identityToken -& 13a34af, idleConnectionTestPeriod -& 900, initialPoolSize -& 3, jdbcUrl -& jdbc:oracle:thin:@10.1.240.132:1521:ora9, loginTimeout -& 0, maxIdleTime -& 600, maxPoolSize -& 50, maxStatements -& 100, maxStatementsPerConnection -& 0, minPoolSize -& 2, numHelperThreads -& 10, preferredTestQuery -& null, properties -& {user=******, password=******}, propertyCycle -& 300, testConnectionOnCheckin -& false, testConnectionOnCheckout -& false, usesTraditionalReflectiveProxies -& false ]
是线程问题 Threed.sleep()
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该网址被大量用户举报，可能含有恶意信息。spring启动c3p0数据源的时候一直显示正在初始化，但就是不通过 - ITeye问答
用的orm工具是ibatis，就是在启动web应用程序的时候一直显示info initializing c3p0什么的,然后就走不下去了，请教各位高手这个是c3p0的错误还是ibatis的错误
采纳的答案
应该不会是c3p0或者是ibatis的问题，这些都是久经考验的东西了
1、你可以先试试更换数据库驱动程序
2、更换连接池，把它替换成proxy之类的连接池，看是不是连接池出问题了
3、最大的可能是你的应用程序有问题，找找你应用程序中的代码是不是有在程序启动时候做的耗时操作。
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