java Hibernate c3p0初始化错误
在我的项目部署了几次之后，我得到了这个日志，它只是在那里暂停。之后我必须重新运行我的项目。我怎样才能解决这个问题并在将来预防
Info: Initializing c3p0-0.9.2-pre2 [built 18-May-2012 10:14:10 -0400; debug? true; trace: 10]
Warning: A C3P0Registry mbean is already registered. This probably means that an application using c3p0 was undeployed, but not all PooledDataSources were closed prior to undeployment. This may lead to resource leaks over time. Please take care to close all PooledDataSources.
Info: Initializing c3p0 pool... com.mchange.v2.c3p0.PoolBackedDataSource@f63e045c [ connectionPoolDataSource -> com.mchange.v2.c3p0.WrapperConnectionPoolDataSource@7aab8919 [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, debugUnreturnedConnectionStackTraces -> false, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, identityToken -> 1hge13c9f3qzb1d180wvxe|f1928e0, idleConnectionTestPeriod -> 0, initialPoolSize -> 1, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 0, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 100, maxStatements -> 0, maxStatementsPerConnection -> 0, minPoolSize -> 1, nestedDataSource -> com.mchange.v2.c3p0.DriverManagerDataSource@3a5a11 [ description -> null, driverClass -> null, factoryClassLocation -> null, identityToken -> 1hge13c9f3qzb1d180wvxe|1311a587, jdbcUrl -> jdbc:mysql://192.168.1.13:3306/medi_soft?autoReconnect=true, properties -> {user=******, password=******} ], preferredTestQuery -> null, propertyCycle -> 0, statementCacheNumDeferredCloseThreads -> 0, testConnectionOnCheckin -> false, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, usesTraditionalReflectiveProxies -> false; userOverrides: {} ], dataSourceName -> null, factoryClassLocation -> null, identityToken -> 1hge13c9f3qzb1d180wvxe|79fef582, numHelperThreads -> 3 ]
<!-- c3p0 Connection Pool Properties -->
<property name="hibernate.connection.pool_size">1</property>
<property name="hibernate.c3p0.min_size">1</property>
<property name="hibernate.c3p0.max_size">100</property>
<property name="hibernate.c3p0.timeout">0</property>
<property name="hibernate.c3p0.max_statements">0</property>
<property name="hibernate.c3p0.idle_test_period">0</property>
# 1 楼答案
从信息日志来看，您似乎正在使用JMX服务器/JMX MBeanServer。使用与JDK捆绑在一起的JMX工具，例如Jconsole来编辑数据源的配置属性。您将发现c3p0在域
com.mchange.v2.c3p0下注册MBean，并为您部署的每个PooledDataSource注册一个MBean如果没有显式设置RegistryName，那么完整的JMX ObjectName将是
上面的值是默认值，hibernate/应用程序正在尝试使用相同的注册表bean（默认值）初始化c3p0
请在配置/属性文件中设置注册表。例如：
如果上述解决方案不起作用，请禁用JMX支持。禁用JMX支持的系统属性为：