Question

Initializing Spring root WebApplicationContext 后就报错关于底层数据库连接JDBC的连接问题..

ERROR [main] org.hibernate.util.JDBCExceptionReporter.logExceptions(234) | An attempt by a client to checkout a Connection has timed out.
[Cause: com.mchange.v2.resourcepool.TimeoutException: A client timed out while waiting to acquire a resource from com.mchange.v2.resourcepool.BasicResourcePool@9da1dd -- 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)
at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:82)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:113)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2863)

Answer 1

你应该配置了C3PO数据库连接池。错误提示你连接池获取数据库连接超时了，你应该查看以下你的数据库连接配置文件（我看你用了Hibernate，应该在Hibernate.cfg.xml中，或者你集成到applicationcontext.xml）中了。确定一下数据库连接地址，用户名，密码是否争取。

追问

都检查过了，是对的，我电脑64位的，用的jdk，tomcat，都是32位的跟这个有关系么？