Impossible d'établir une connexion JDBC

Cela peut vous aider

Ajoutez également un nom d'utilisateur et un mot de passe

<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
   <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
   <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/sampleDB</property>
   <property name="hibernate.connection.username">yourUserNameForMysql</property>
   <property name="hibernate.connection.password">passwordForMySql</property>

Après Mysql 5.x, utilisez la classe org.hibernate.dialect.MySQL5Dialect

<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
   <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
   <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/sampleDB</property>
   <property name="hibernate.connection.username">yourUserNameForMysql</property>
   <property name="hibernate.connection.password">passwordForMySql</property>