hibernate配置C3P0连接池出现could not find org.hibernate.connection.C3P0Connecti问题

hibernate配置C3P0连接池出现could not find org.hibernate.connection.C3P0Connecti问题

错误：WARN ConnectionProviderFactory:152 - c3p0 properties is specificed, but could not find org.hibernate.connection.C3P0ConnectionProvider from the classpath, these properties are going to be ignored.

原因及解决方法：
hibernate只从3.3版本以后，org.hibernate.connection.C3P0ConnectionProvider移动到hibernate-c3p0包中，所以你需要导入hibernate-c3p0这个包才能使用c3p0，
或者在maven工程的pom文件添加(此处用的hibernate版本是4.3.5.Final，添加此包需要根据自己项目中使用的hibernate版本来选择)

<dependency>        <groupId>org.hibernate</groupId>        <artifactId>hibernate-c3p0</artifactId>        <version>4.3.5.Final</version></dependency>