mysql-hibernate整合MySQL，出现异常

java.sql.sqlexception: access denied for user ‘root’@’localhost’ (using password: yes)。。。。。。还有整体异常java.sql.sqlexception: access denied for user ‘root’@’localhost’ (using password: yes) at com.mysql.jdbc.sqlerror.createsqlexception(sqlerror.java:946) at com.mysql.jdbc.mysqlio.checkerrorpacket(mysqlio.java:2870) at com.mysql.jdbc.mysqlio.checkerrorpacket(mysqlio.java:812) at com.mysql.jdbc.mysqlio.secureauth411(mysqlio.java:3269) at com.mysql.jdbc.mysqlio.dohandshake(mysqlio.java:1182) at com.mysql.jdbc.connection.createnewio(connection.java:2670) at com.mysql.jdbc.connection.(connection.java:1531) at com.mysql.jdbc.nonregisteringdriver.connect(nonregisteringdriver.java:266) at com.mchange.v2.c3p0.drivermanagerdatasource.getconnection(drivermanagerdatasource.java:135) 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)