Java - Hibernate.cfg.xml - 无法解析文件中的驱动程序

Question

我正在使用 Hibernate 将项目连接到 MySQL，但 hibernate.cfg.xml 文件出现错误 - 无法解析包 mysql(以及包 cj、jdbc 等)。

这是代码-

<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
  <session-factory>
    <property name="connection.url">jdbc:mysql://localhost:3306/theprocess?useUnicode=true&amp;useJDBCCompliantTimezoneShift=true&amp;useLegacyDatetimeCode=false&amp;serverTimezone=UTC</property>
    <property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
    <property name="connection.username">root</property>
    <property name="connection.password">Amit4089</property>
    <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
    <!-- DB schema will be updated if needed -->
    <property name="hbm2ddl.auto">update</property>
    <mapping class="com.example.WebAppProcess20.Entities.ClientsEntity"/>
    <mapping class="com.example.WebAppProcess20.Entities.InvoicesEntity"/>
    <mapping class="com.example.WebAppProcess20.Entities.OrdersEntity"/>
    <mapping class="com.example.WebAppProcess20.Entities.OrdersitemsEntity"/>
    <mapping class="com.example.WebAppProcess20.Entities.ProductsEntity"/>
  </session-factory>
</hibernate-configuration>

代码中的第五行就是我所说的。

问题是，依赖关系已正确声明，并且相同的文件适用于我的项目合作伙伴。

(Spring 框架)。

#更新 1 - 添加依赖项

<dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.11</version>
    </dependency>

堆栈

19:28:27.282 [background-preinit] DEBUG org.hibernate.validator.internal.engine.resolver.TraversableResolvers - Found javax.persistence.Persistence on classpath containing 'getPersistenceUtil'. Assuming JPA 2 environment. Trying to instantiate JPA aware TraversableResolver
19:28:27.298 [background-preinit] DEBUG org.hibernate.validator.internal.engine.resolver.TraversableResolvers - Instantiated JPA aware TraversableResolver of type org.hibernate.validator.internal.engine.resolver.JPATraversableResolver.
19:28:27.298 [background-preinit] DEBUG org.hibernate.validator.internal.engine.resolver.TraversableResolvers - Unable to load or instantiate JPA aware resolver org.hibernate.validator.internal.engine.resolver.JPATraversableResolver. All properties will per default be traversable.
19:28:27.298 [background-preinit] DEBUG org.hibernate.validator.internal.xml.ValidationXmlParser - Trying to load META-INF/validation.xml for XML based Validator configuration.
19:28:27.298 [background-preinit] DEBUG org.hibernate.validator.internal.xml.ResourceLoaderHelper - Trying to load META-INF/validation.xml via TCCL
19:28:27.298 [background-preinit] DEBUG org.hibernate.validator.internal.xml.ResourceLoaderHelper - Trying to load META-INF/validation.xml via Hibernate Validator's class loader
19:28:27.298 [background-preinit] DEBUG org.hibernate.validator.internal.xml.ValidationXmlParser - No META-INF/validation.xml found. Using annotation based configuration only.
19:28:27.704 [background-preinit] DEBUG org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator - Loaded expression factory via original TCCL
19:28:27.704 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator as ValidatorFactory-scoped message interpolator.
19:28:27.704 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.resolver.TraverseAllTraversableResolver as ValidatorFactory-scoped traversable resolver.
19:28:27.704 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.util.ExecutableParameterNameProvider as ValidatorFactory-scoped parameter name provider.
19:28:27.704 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.DefaultClockProvider as ValidatorFactory-scoped clock provider.
19:28:27.704 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.scripting.DefaultScriptEvaluatorFactory as ValidatorFactory-scoped script evaluator factory.

` 有什么想法吗？

Answer 1

您的帖子中并不清楚该错误。但请确保MySQLDialect的版本与您使用的MySQL版本兼容。

还有其他MySQLDialect适用于5.x之前的版本。然后还有 MySQL55Dialect 和 MySQL57Dialect，分别适用于版本 5.5 和 5.7。