hibernate.connection.driver_class打错了,这种以后尽量复制吧,眼瞎 正确配置
<?xml version="1.0"?> <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"> <persistence-unit name="ilmlife" transaction-type="RESOURCE_LOCAL"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/> <property name="hibernate.connection.driver_class" value="org.gjt.mm.mysql.Driver"/> <property name="hibernate.connection.username" value="root"/> <property name="hibernate.connection.password" value="123456"/> <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/ilmlife?useUnicode=true&characterEncoding=UTF-8"/> <property name="hibernate.max_fetch_depth" value="3"/> <property name="hibernate.hbm2ddl.auto" value="update"/> <property name="hibernate.jdbc.fetch_size" value="18"/> <property name="hibernate.jdbc.batch_size" value="10"/> <property name="hibernate.show_sql" value="false"/> <property name="hibernate.format_sql" value="false"/> </properties> </persistence-unit> </persistence>