org.hibernate.hibernateeexception:未找到方言类：org.hibernate.dialogue.mysqldialogue在spring MVC中

我使用Spring的WebApplicationInitializer接口以编程方式创建应用程序上下文，并使用hibernate和jpa规范实现数据持久化。我将db.properties文件放在src文件夹中，在WebAppConfig类中添加@PropertySource（“classpath:db.properties”）。我在类路径中有以下用于hibernate的JAR

antlr-2.7.7.jar aopalliance-1.0.jar
commons-dbcp-1.4-javadoc.jar
commons-dbcp-1.4-sources.jar
commons-dbcp-1.4.jar
commons-logging-1.1.1.jar
commons-pool-1.6-javadoc.jar
commons-pool-1.6-sources.jar
commons-pool-1.6.jar
dom4j-1.6.1.jar
hibernate-commons-annotations-4.0.1.Final.jar
hibernate-core-4.1.9.Final.jar
hibernate-entitymanager-4.1.9.Final.jar
hibernate-jpa-2.0-api-1.0.1.Final.jar
javassist-3.17.1-GA.jar
jboss-logging-3.1.0.GA.jar
jta-1.1.jar
mysql-connector-java-5.1.6-bin.jar

SEVERE: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class com.genesis.init.WebAppConfig: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build EntityManagerFactory
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1507)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:299)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1145)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:922)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:493)
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:658)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:512)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:466)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    at javax.servlet.GenericServlet.init(GenericServlet.java:160)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1267)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1084)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5027)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3920)
    at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:426)
    at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1345)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1530)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1519)
    at java.lang.Thread.run(Thread.java:722)
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build EntityManagerFactory
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:915)
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:890)
    at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:74)
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:293)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:317)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1566)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1503)
    ... 27 more
Caused by: org.hibernate.HibernateException: Dialect class not found: org.hibernate.dialect.MySQLDialect 
    at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:76)
    at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:64)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:170)
    at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
    at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:77)
    at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2283)
    at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2279)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1748)
    at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:94)
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:905)
    ... 33 more
Caused by: org.hibernate.service.classloading.spi.ClassLoadingException: Unable to load class [org.hibernate.dialect.MySQLDialect ]
    at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:141)
    at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:73)
    ... 44 more
Caused by: java.lang.ClassNotFoundException: Could not load requested class : org.hibernate.dialect.MySQLDialect 
    at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl$1.findClass(ClassLoaderServiceImpl.java:99)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:266)
    at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:138)
    ... 45 more

web初始化器类代码

package com.genesis.init;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration.Dynamic;

import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;

public class Initializer implements WebApplicationInitializer {
    // gets invoked automatically when application starts up
    public void onStartup(ServletContext servletContext)
            throws ServletException {
        // Create ApplicationContext. I'm using the
        // AnnotationConfigWebApplicationContext to avoid using beans xml files.
        AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
        ctx.register(WebAppConfig.class);
        // Add the servlet mapping manually and make it initialize automatically
        Dynamic servlet = servletContext.addServlet("dispatcher",
                new DispatcherServlet(ctx));
        servlet.addMapping("/");
        servlet.setLoadOnStartup(1);
    }
}

WebAppConfig代码

package com.genesis.init;
import java.util.Map;
import javax.sql.DataSource;
import org.apache.commons.dbcp.BasicDataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.support.OpenEntityManagerInViewInterceptor;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;


@Configuration
// specifies this class as configuration
@ComponentScan("com.genesis")
// specifies which package to scan
@EnableWebMvc
// enable spring web mvc to use annotation
@PropertySource("classpath:db.properties")
// plugs in property file which located in the resource folder.
@EnableTransactionManagement
// enables Spring’s annotation-driven transaction management capability.
public class WebAppConfig extends WebMvcConfigurerAdapter {

@Autowired
private Environment env;

// Tell SpingMVC where to find view scripts
@Bean
public InternalResourceViewResolver viewResolver() {
    InternalResourceViewResolver resolver = new InternalResourceViewResolver();
    resolver.setPrefix("/WEB-INF/views/");
    resolver.setSuffix(".jsp");

    return resolver;
}

// Enable serving static resources even when DispatcherServlet is mapped to
@Override
public void configureDefaultServletHandling(
        DefaultServletHandlerConfigurer configurer) {
    configurer.enable();
}

// Enable accessing entityManager from view scripts. Required when using
// lazy loading
@Override
public void addInterceptors(InterceptorRegistry registry) {
    OpenEntityManagerInViewInterceptor viewInterceptor = new OpenEntityManagerInViewInterceptor();
    viewInterceptor.setEntityManagerFactory(entityManagerFactory().getObject());
    registry.addWebRequestInterceptor(viewInterceptor);
}

//Set up dataSource to be used by Hibernate. Also make sure the connection doesn't go down
@Bean
public DataSource getDataSource() {
    BasicDataSource dataSource = new BasicDataSource();
    dataSource.setUrl(env.getProperty("url"));
    dataSource.setDriverClassName(env.getProperty("driver"));
    dataSource.setUsername(env.getProperty("user"));
    dataSource.setPassword(env.getProperty("pass"));
    dataSource.setValidationQueryTimeout(5);
    return dataSource;
}

//Set up JPA and transactionManager
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
    LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
    emf.setDataSource(getDataSource());
    emf.setPackagesToScan("com.genesis.model");

    // let Hibernate know which database we're using.
    // note that this is vendor specific, not JPA
    Map<String, Object> opts = emf.getJpaPropertyMap();
    opts.put("hibernate.dialect", env.getProperty("hibernate.dialect"));
    HibernateJpaVendorAdapter va = new HibernateJpaVendorAdapter();
    emf.setJpaVendorAdapter(va);

    return emf;
}

//Let us use PlatformTransactionManager directly to implement programmatic approach to implement transactions
    //To start a new transaction you need to have a instance of TransactionDefinition
    @Bean
    public PlatformTransactionManager transactionManager(){
        JpaTransactionManager transactionManager=new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
        return transactionManager();
    }
}

控制台输出为

antlr-2.7.7.jar aopalliance-1.0.jar
commons-dbcp-1.4-javadoc.jar
commons-dbcp-1.4-sources.jar
commons-dbcp-1.4.jar
commons-logging-1.1.1.jar
commons-pool-1.6-javadoc.jar
commons-pool-1.6-sources.jar
commons-pool-1.6.jar
dom4j-1.6.1.jar
hibernate-commons-annotations-4.0.1.Final.jar
hibernate-core-4.1.9.Final.jar
hibernate-entitymanager-4.1.9.Final.jar
hibernate-jpa-2.0-api-1.0.1.Final.jar
javassist-3.17.1-GA.jar
jboss-logging-3.1.0.GA.jar
jta-1.1.jar
mysql-connector-java-5.1.6-bin.jar

SEVERE: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class com.genesis.init.WebAppConfig: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build EntityManagerFactory
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1507)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:299)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1145)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:922)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:493)
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:658)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:512)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:466)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    at javax.servlet.GenericServlet.init(GenericServlet.java:160)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1267)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1084)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5027)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3920)
    at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:426)
    at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1345)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1530)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1519)
    at java.lang.Thread.run(Thread.java:722)
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build EntityManagerFactory
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:915)
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:890)
    at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:74)
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:293)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:317)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1566)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1503)
    ... 27 more
Caused by: org.hibernate.HibernateException: Dialect class not found: org.hibernate.dialect.MySQLDialect 
    at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:76)
    at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:64)
    at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:170)
    at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
    at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:77)
    at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2283)
    at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2279)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1748)
    at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:94)
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:905)
    ... 33 more
Caused by: org.hibernate.service.classloading.spi.ClassLoadingException: Unable to load class [org.hibernate.dialect.MySQLDialect ]
    at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:141)
    at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:73)
    ... 44 more
Caused by: java.lang.ClassNotFoundException: Could not load requested class : org.hibernate.dialect.MySQLDialect 
    at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl$1.findClass(ClassLoaderServiceImpl.java:99)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:266)
    at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:138)
    ... 45 more

严重：上下文初始化失败
org.springframework.beans.factory.BeanCreationException:创建名为“entityManagerFactory”的bean时出错，该bean在类com.genesis.init.WebAppConfig中定义：调用init方法失败；嵌套异常为javax.persistence.PersistenceException:[PersistenceUnit:default]无法生成EntityManagerFactory
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1507）
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:539）
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:475）
位于org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject（AbstractBeanFactory.java:299）
位于org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:228）
位于org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:295）
位于org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:195）
位于org.springframework.context.support.AbstractApplicationContext.getBean（AbstractApplicationContext.java:1145）
位于org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:922）
位于org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:493）
位于org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext（FrameworkServlet.java:658）
位于org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext（FrameworkServlet.java:512）
位于org.springframework.web.servlet.FrameworkServlet.initServletBean（FrameworkServlet.java:466）
位于org.springframework.web.servlet.HttpServletBean.init（HttpServletBean.java:136）
位于javax.servlet.GenericServlet.init（GenericServlet.java:160）
位于org.apache.catalina.core.StandardWrapper.initServlet（StandardWrapper.java:1267）
位于org.apache.catalina.core.StandardWrapper.load（StandardWrapper.java:1084）
位于org.apache.catalina.core.StandardContext.loadOnStartup（StandardContext.java:5027）
位于org.apache.catalina.core.StandardContext.startInternal（StandardContext.java:5314）
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:150）
位于org.apache.catalina.core.StandardContext.reload（StandardContext.java:3920）
位于org.apache.catalina.loader.WebappLoader.backgroundProcess（WebappLoader.java:426）
位于org.apache.catalina.core.ContainerBase.backgroundProcess（ContainerBase.java:1345）
位于org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren（ContainerBase.java:1530）
位于org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren（ContainerBase.java:1540）
位于org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren（ContainerBase.java:1540）
位于org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run（ContainerBase.java:1519）
运行（Thread.java:722）
原因：javax.persistence.PersistenceException:[PersistenceUnit:default]无法生成EntityManagerFactory
位于org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory（Ejb3Configuration.java:915）
位于org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory（Ejb3Configuration.java:890）
位于org.hibernate.ejb.HibernatePersistence.createContainerEntityManager工厂（HibernatePersistence.java:74）
位于org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory（LocalContainerEntityManagerFactoryBean.java:293）
位于org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.AfterPropertieSet（AbstractEntityManagerFactoryBean.java:317）
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory.java:1566）
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1503）
... 还有27个
原因：org.hibernate.hibernate异常：未找到方言类：org.hibernate.dialogue.mysqldialogue
位于org.hibernate.service.jdbc.dialogue.internal.dialogueFactoryImpl.ConstructDialogue（dialogueFactoryImpl.java:76）
位于org.hibernate.service.jdbc.dialogue.internal.dialogueFactoryImpl.buildDialogue（dialogueFactoryImpl.java:64）
位于org.hibernate.engine.jdbc.internal.jdbcservicesiml.configure（jdbcservicesiml.java:170）
位于org.hibernate.service.internal.StandardServiceRegistryImpl.configureService（StandardServiceRegistryImpl.java:75）
位于org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService（AbstractServiceRegistryImpl.java:159）
位于org.hibernate.service.internal.AbstractServiceRegistryImpl.getService（AbstractServiceRegistryImpl.java:131）
在org.hibernate.cfg.SettingsFactory.buildSettings（SettingsFactory.java:77）上
位于org.hibernate.cfg.Configuration.buildSettingsInternal（Configuration.java:2283）
位于org.hibernate.cfg.Configuration.buildSettings（Configuration.java:2279）
位于org.hibernate.cfg.Configuration.buildSessionFactory（Configuration.java:1748）
位于org.hibernate.ejb.EntityManagerF