使用spring+c3p0数据源，数据库是mysql。操作数据库直接使用JdbcTemplate，报错

补充下报错信息：
1027/17:10:46 <DEBUG> [com.mchange.v2.c3p0.impl.NewPooledConnection 286] A Throwable occurred while trying to reset the readOnly property of our Connection to false!
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:408)
at com.mysql.jdbc.Util.getInstance(Util.java:383)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1023)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:997)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:983)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:928)
at com.mysql.jdbc.ConnectionImpl.throwConnectionClosedException(ConnectionImpl.java:1323)
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.java:1315)
at com.mysql.jdbc.ConnectionImpl.setReadOnly(ConnectionImpl.java:5510)
at com.mchange.v2.c3p0.impl.NewPooledConnection.reset(NewPooledConnection.java:282)
at com.mchange.v2.c3p0.impl.NewPooledConnection.ClosedProxyConnection(NewPooledConnection.java:247)
at com.mchange.v2.c3p0.impl.NewProxyConnection.close(NewProxyConnection.java:1148)
at com.mchange.v1.db.sql.ConnectionUtils.attemptClose(ConnectionUtils.java:41)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1.testPooledConnection(C3P0PooledConnectionPool.java:182)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1.refurbishIdleResource(C3P0PooledConnectionPool.java:136)
at com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask.run(BasicResourcePool.java:1394)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:368)