ORA-01017: invalid username/password; logon denied解决办法

ORA-01017: invalid username/password; logon denied
tomcat在启动的最后就会报这个错误，搞了半天解决不了，用户名和密码都是对的
求大神指点
我的项目数据库原来是oracle10g的，导出方案后现在又导入到oracle11g，用户也是新建的，并赋予connect和resource权限，是权限的问题嘛

java.sql.SQLException: ORA-01017: invalid username/password; logon denied


	at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:111)

	at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:330)

	at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:282)

	at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:277)

	at oracle.jdbc.driver.T4CTTIoauthenticate.receiveOauth(T4CTTIoauthenticate.java:790)

	at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:361)

	at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:438)

	at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:164)

	at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:34)

	at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:752)

	at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134)

	at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)

	at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)

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

	at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)

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

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

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

DEBUG 2012-09-29 11:58:21,101 com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask: An exception occurred while acquiring a poolable resource. Will retry.

上面是完整的错误信息
我的用户名和密码是对的

#**********db set***************#

driverClassName=oracle.jdbc.driver.OracleDriver

url=jdbc:oracle:thin:@localhost:1521:myora

username=kael	

password=kael

minPoolSize=5

maxPoolSize=50

maxIdleTime=1800

acquireIncrement=3

maxStatements=1000

initialPoolSize=5

idleConnectionTestPeriod=60

acquireRetryAttempts=30

testConnectionOnCheckout=false

breakAfterAcquireFailure=false

acquireRetryDelay=100

<context:property-placeholder location="classpath:db.properties,classpath:constant.properties" ignore-unresolvable="true"/>


		<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"

		destroy-method="close">

		<property name="driverClass">

		<value>${driverClassName}</value>

		</property>

		<property name="jdbcUrl">

		<value>${url}</value>

		</property>

		<property name="user">

		<value>${username}</value>

		</property>

		<property name="password">

		<value>${password}</value>

		</property>

		<!--连接池中保留的最小连接数。 -->

		<property name="minPoolSize">

		<value>${minPoolSize}</value>

		</property>

		<!--连接池中保留的最大连接数。Default: 15 -->

		<property name="maxPoolSize"  >

		<value>${maxPoolSize}</value>

		</property>

		<!--最大空闲时间,若为0则永不丢弃。Default: 0 -->

		<property name="maxIdleTime">

		<value>${maxIdleTime}</value>

		</property>

		<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->

		<property name="acquireIncrement">

		<value>${acquireIncrement}</value>

		</property>

		<property name="maxStatements">

		<value>${maxStatements}</value>

		</property>

		<property name="initialPoolSize">

		<value>${initialPoolSize}</value>

		</property>

		<!--每60秒检查所有连接池中的空闲连接。Default: 0 -->

		<property name="idleConnectionTestPeriod">

		<value>${idleConnectionTestPeriod}</value>

		</property>

		<!--定义在从数据库获取新连接失败后重复尝试的次数。Default: 30 -->

		<property name="acquireRetryAttempts">

		<value>${acquireRetryAttempts}</value>

		</property>

		<property name="breakAfterAcquireFailure" >

		<value>${breakAfterAcquireFailure}</value>

		</property>

		<property name="testConnectionOnCheckout">

		<value>${testConnectionOnCheckout}</value>

		</property>

		<property name="acquireRetryDelay">

   	 	<value>${acquireRetryDelay}</value>

		</property>

	</bean>

这是spring配置