2015年1月21日的一个报错

一月 21, 201510:32:31 上午com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask run

警告:com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@c693b3f --Acquisition Attempt Failed!!! Clearing pending acquires. While trying toacquire a needed new resource, we failed to succeed more than the maximumnumber of allowed acquisition attempts (30). Last acquisition attemptexception:

java.sql.SQLException: Access denied for user 'root'@'localhost' (usingpassword: YES)

    atcom.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075)

    atcom.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3566)

    atcom.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3498)

    atcom.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:919)

    atcom.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4004)

    atcom.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1284)

    atcom.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2312)

    atcom.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2122)

    atcom.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:774)

    atcom.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:49)

    atsun.reflect.GeneratedConstructorAccessor13.newInstance(Unknown Source)

    atsun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

    atjava.lang.reflect.Constructor.newInstance(Unknown Source)

    atcom.mysql.jdbc.Util.handleNewInstance(Util.java:409)

    atcom.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:375)

    atcom.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:289)

    atcom.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134)

    atcom.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)

    atcom.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)

    atcom.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)

    atcom.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)

    atcom.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)

    atcom.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)

    atcom.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)