hibernate连接问题?报错

使用的是hibernate4.3.10.Final这个版本,编写的测试用例是可以正确加载文件并执行的,但是运行web项目之后,会出现找不到驱动的问题,我将maven中的jar包直接放入buildpath中或者使用Class.forName("com.mysql.jdbc.Driver");还是找不到驱动,hibernate的配置是没有问题的

一下是报错的关键信息

org.hibernate.exception.JDBCConnectionException: Error calling DriverManager#getConnection
	at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:132)
	at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator$1$1.convert(BasicConnectionCreator.java:118)

Caused by: java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/studentManager?useUnicode=true&characterEncoding=UTF-8
	at java.sql.DriverManager.getConnection(Unknown Source)
	at java.sql.DriverManager.getConnection(Unknown Source)
	at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionCreator.makeConnection(DriverManagerConnectionCreator.java:51)
	... 86 more