当'hibernate.dialect'没有设置hibernate4 tomcat7时，连接不能为空 [英] Connection cannot be null when 'hibernate.dialect' not set hibernate4 tomcat7
本文介绍了当'hibernate.dialect'没有设置hibernate4 tomcat7时，连接不能为空的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
为了设置一个使用spring的web应用程序，hibernate在tomcat上运行，我遵循了一些教程。
当试图运行我的应用程序时，错误当'hibernate.dialect'未设置时，连接不能为空'
我的hibernate.cfg.xml是
<？xml version ='1.0'encoding ='utf-8'？>
<！DOCTYPE hibernate-configuration PUBLIC - // Hibernate / Hibernate ConfigurationDTD // EN
http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd\">
< hibernate-configuration>
< session-factory>
< property name =connection.driver_class> com.mysql.jdbc.Driver< / property>
< property name =connection.url> jdbc：mysql：// localhost：3306 / myproject< / property>
< property name =connection.username> root< / property>
< property name =connection.password> root< / property>
< mapping class =com.myproject.entity.user.UserEntity>< / mapping>
< mapping class =com.myproject.entity.user.UserAboutEntity>< / mapping>
< mapping class =com.myproject.entity.user.UserBasicInfoEntity>< / mapping>
< mapping class =com.myproject.entity.user.UserDescriptionEntity>< / mapping>
< mapping class =com.myproject.entity.user.UserInterestsEntity>< / mapping>
< mapping class =com.myproject.entity.user.UserEntity>< / mapping>
< mapping class =com.myproject.entity.user.UserPersonalViewsEntity>< / mapping>
< mapping class =com.myproject.entity.user.UserPetsEntity>< / mapping>
< mapping class =com.myproject.entity.user.UserSportsEntity>< / mapping>
< mapping class =com.myproject.entity.user.PartnerAboutEntity>< / mapping>
< mapping class =com.myproject.entity.user.PartnerBasicInfoEntity>< / mapping>
< mapping class =com.myproject.entity.user.PartnerDescriptionEntity>< / mapping>
< mapping class =com.myproject.entity.user.PartnerInterestsEntity>< / mapping>
< mapping class =com.myproject.entity.user.PartnerPersonalViewsEntity>< / mapping>
< mapping class =com.myproject.entity.user.PartnerPetsEntity>< / mapping>
< mapping class =com.myproject.entity.user.PartnerSportsEntity>< / mapping>
< mapping class =com.myproject.entity.user.PartnerStyleEntity>< / mapping>
< mapping class =com.myproject.entity.user.MessagePageEntity>< / mapping>
< mapping class =com.myproject.entity.user.MessageEntity>< / mapping>
< mapping class =com.myproject.entity.user.MatchListEntity>< / mapping>
< / session-factory>
< / hibernate-configuration>
我的pom.xml
< project xmlns =http://maven.apache.org/POM/4.0.0xmlns：xsi =http://www.w3.org/2001/XMLSchema-instance xsi：schemaLocation =http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd\">
< modelVersion> 4.0.0< / modelVersion>
< groupId> com.myproject.controller< / groupId>
< artifactId> myproject< / artifactId>
< version> 1.0-SNAPSHOT< / version>
<包装>战争< / packaging>
<名称> myproject Webapp< /名称>
< url> http：//maven.apache.org< / url>
<属性>
< spring.version> 3.1.1.RELEASE< /spring.version>
< / properties>
< build>
< finalName> myproject-webapp< / finalName>
< plugins>
< plugin>
< groupId> org.apache.maven.plugins< / groupId>
< artifactId> maven-compiler-plugin< / artifactId>
< version> 3.1< / version>
<配置>
< source> $ {jdk.version}< / source>
< target> $ {jdk.version}< / target>
< / configuration>
< / plugin>
< plugin>
< groupId> net.leadware< / groupId>
< artifactId> hibernate4-maven-plugin< / artifactId>
< version> 1.0.1< / version>
< / plugin>
< / plugins>
< / build>
< repositories>
< repository>
< id> repository.jboss.org-public< / id>
< name> JBoss存储库< / name>
< url> https：//repository.jboss.org/nexus/content/groups/public< / url>
< / repository>
< / repositories>
<依赖关系>
<！ - Spring依赖关系 - >
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-core< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-web< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-webmvc< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-webmvc-portlet< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-tx< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-expression< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-beans< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-aop< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-context< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-context-support< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-jdbc< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-orm< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
< dependency>
< groupId> org.springframework< / groupId>
< artifactId> spring-oxm< / artifactId>
< version> $ {spring.version}< / version>
< /依赖关系>
<！ - MySQL数据库驱动程序 - >
< dependency>
< groupId> mysql< / groupId>
< artifactId> mysql-connector-java< / artifactId>
< version> 5.1.30< / version>
< /依赖关系>
<！ - Hibernate框架 - >
< dependency>
< groupId> org.hibernate< / groupId>
< artifactId> hibernate-core< / artifactId>
< version> 4.2.7.Final< / version>
< /依赖关系>
< dependency>
< groupId> org.hibernate< / groupId>
< artifactId> hibernate-entitymanager< / artifactId>
< version> 4.2.7.Final< / version>
< /依赖关系>
<！ - Hibernate library dependecy start - >
< dependency>
< groupId> dom4j< / groupId>
< artifactId> dom4j< / artifactId>
< version> 1.6.1< / version>
< /依赖关系>
< dependency>
< groupId> commons-logging< / groupId>
< artifactId> commons-logging< / artifactId>
< version> 1.1.1< / version>
< /依赖关系>
< dependency>
< groupId> commons-collections< / groupId>
< artifactId> commons-collections< / artifactId>
< version> 3.2.1< / version>
< /依赖关系>
< dependency>
< groupId> antlr< / groupId>
< artifactId> antlr< / artifactId>
< version> 2.7.7< / version>
< /依赖关系>
<！ - Hibernate库依赖性结束 - >
<！ - Tomcat - >
< dependency>
< groupId> org.apache.tomcat< / groupId>
< artifactId> tomcat-dbcp< / artifactId>
< version> 7.0.52< / version>
< /依赖关系>
<！ - Log4J - >
< dependency>
< groupId> log4j< / groupId>
< artifactId> log4j< / artifactId>
< version> 1.2.15< / version>
<排除项>
<排除>
< groupId> javax.mail< / groupId>
< artifactId>邮件< / artifactId>
< /排除>
<排除>
< groupId> javax.jms< / groupId>
< artifactId> jms< / artifactId>
< /排除>
<排除>
< groupId> com.sun.jdmk< / groupId>
< artifactId> jmxtools< / artifactId>
< /排除>
<排除>
< groupId> com.sun.jmx< / groupId>
< artifactId> jmxri< / artifactId>
< /排除>
< /排除>
< scope>运行时< / scope>
< /依赖关系>
< dependency>
< groupId> javassist< / groupId>
< artifactId> javassist< / artifactId>
< version> 3.12.1.GA< / version>
< /依赖关系>
< dependency>
< groupId> javax.servlet< / groupId>
< artifactId> jstl< / artifactId>
< version> 1.2< / version>
< scope>运行时< / scope>
< /依赖关系>
< dependency>
< groupId> taglibs< / groupId>
< artifactId>标准< / artifactId>
< version> 1.1.2< / version>
< scope>运行时< / scope>
< /依赖关系>
< dependency>
< groupId> commons-dbcp< / groupId>
< artifactId> commons-dbcp< / artifactId>
< version> 1.4< / version>
< /依赖关系>
< /依赖关系>
< / project>
user-servlet.xml
<？xml version =1.0encoding =UTF-8？>
< beans xmlns =http://www.springframework.org/schema/beans
xmlns：xsi =http://www.w3.org/2001/XMLSchema-instance
xmlns：aop =http://www.springframework.org/schema/aop
xmlns：context =http://www.springframework.org/schema/context
xmlns ：jee =http://www.springframework.org/schema/jee
xmlns：lang =http://www.springframework.org/schema/lang
xmlns：p = http://www.springframework.org/schema/p
xmlns：tx =http://www.springframework.org/schema/tx
xmlns：util =http：// www.springframework.org/schema/util
xsi：schemaLocation =http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans。 xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org / schema / context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/架构/ J ee / spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http：/ /www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http：// www.springframework.org/schema/util/spring-util.xsd\">
< context：annotation-config />
< context：component-scan base-package =com.findlove.controller/>
< bean id =jspViewResolver
class =org.springframework.web.servlet.view.InternalResourceViewResolver>
< property name =viewClass
value =org.springframework.web.servlet.view.JstlView>< / property>
< property name =prefixvalue =/ WEB-INF / view />< / property>
< property name =suffixvalue =。jsp>< / property>
< / bean>
< bean id =messageSource
class =org.springframework.context.support.ReloadableResourceBundleMessageSource>
< property name =basenamevalue =classpath：messages>< / property>
< property name =defaultEncodingvalue =UTF-8>< / property>
< / bean>
class =org.springframework.beans.factory.config.PropertyPlaceholderConfigurer
p：location =/ WEB-INF / jdbc.properties> < /豆腐>
< bean id =dataSource
class =org.apache.commons.dbcp.BasicDataSourcedestroy-method =close
p：driverClassName =$ { jdbc.driverClassName}
p：url =$ {jdbc.databaseurl}p：username =$ {jdbc.username}
p：password =$ {jdbc.password}><< ; /豆腐>
< bean id =sessionFactoryclass =org.springframework.orm.hibernate4.LocalSessionFactoryBean>
< property name =packagesToScanvalue =com.findlove.entity/>
< / bean>
< bean id =userDAOclass =com.findlove.dao.user.UserDAOImpl>< / bean>
< bean id =userManagerclass =com.findlove.service.user.UserManagerImpl>< / bean>
< tx：annotation-driven />
< bean id =transactionManager
class =org.springframework.orm.hibernate4.HibernateTransactionManager>
< property name =sessionFactoryref =sessionFactory>< / property>
< / bean>
任何有关我出现此错误的建议都将不胜感激。 / p>
Lisa
解决方案
/ p>
< bean id =sessionFactory
class =org.springframework.orm.hibernate3.LocalSessionFactoryBean>
< property name =dataSourceref =dataSource/>
< property name =configLocation>
< value> classpath：hibernate.cfg.xml< / value>
< / property>
< property name =configurationClass>
< value> org.hibernate.cfg.AnnotationConfiguration< / value>
< / property>
< property name =hibernateProperties>
<道具>
< prop key =hibernate.dialect> $ {jdbc.dialect}< / prop>
< prop key =hibernate.show_sql> true< / prop>
< /道具>
< / property>
< / bean>
这是指定hibernate.cfg.xml的地方，也是放置方言的地方。如果你有会话工厂的< property name =dataSourceref =dataSource/> ，你不需要它在hibernate.cfg.xml 。
我建议再次查看教程源代码并相应地调整您的代码。
I've followed some tutorial in order to set up a web application using spring, hibernate to run on tomcat.
When trying to run my application I get the error "Connection cannot be null when 'hibernate.dialect' not set"
My hibernate.cfg.xml is
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate ConfigurationDTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/myproject</property>
<property name="connection.username">root</property>
<property name="connection.password">root</property>
<mapping class="com.myproject.entity.user.UserEntity"></mapping>
<mapping class="com.myproject.entity.user.UserAboutEntity"></mapping>
<mapping class="com.myproject.entity.user.UserBasicInfoEntity"></mapping>
<mapping class="com.myproject.entity.user.UserDescriptionEntity"></mapping>
<mapping class="com.myproject.entity.user.UserInterestsEntity"></mapping>
<mapping class="com.myproject.entity.user.UserEntity"></mapping>
<mapping class="com.myproject.entity.user.UserPersonalViewsEntity"></mapping>
<mapping class="com.myproject.entity.user.UserPetsEntity"></mapping>
<mapping class="com.myproject.entity.user.UserSportsEntity"></mapping>
<mapping class="com.myproject.entity.user.PartnerAboutEntity"></mapping>
<mapping class="com.myproject.entity.user.PartnerBasicInfoEntity"></mapping>
<mapping class="com.myproject.entity.user.PartnerDescriptionEntity"></mapping>
<mapping class="com.myproject.entity.user.PartnerInterestsEntity"></mapping>
<mapping class="com.myproject.entity.user.PartnerPersonalViewsEntity"></mapping>
<mapping class="com.myproject.entity.user.PartnerPetsEntity"></mapping>
<mapping class="com.myproject.entity.user.PartnerSportsEntity"></mapping>
<mapping class="com.myproject.entity.user.PartnerStyleEntity"></mapping>
<mapping class="com.myproject.entity.user.MessagePageEntity"></mapping>
<mapping class="com.myproject.entity.user.MessageEntity"></mapping>
<mapping class="com.myproject.entity.user.MatchListEntity"></mapping>
</session-factory>
</hibernate-configuration>
My pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myproject.controller</groupId>
<artifactId>myproject</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>myproject Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>3.1.1.RELEASE</spring.version>
</properties>
<build>
<finalName>myproject-webapp</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>${jdk.version}</source>
<target>${jdk.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>net.leadware</groupId>
<artifactId>hibernate4-maven-plugin</artifactId>
<version>1.0.1</version>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>repository.jboss.org-public</id>
<name>JBoss repository</name>
<url>https://repository.jboss.org/nexus/content/groups/public</url>
</repository>
</repositories>
<dependencies>
<!-- Spring dependencies -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc-portlet</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- MySQL database driver -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.30</version>
</dependency>
<!-- Hibernate framework -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.2.7.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.2.7.Final</version>
</dependency>
<!-- Hibernate library dependecy start -->
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2.1</version>
</dependency>
<dependency>
<groupId>antlr</groupId>
<artifactId>antlr</artifactId>
<version>2.7.7</version>
</dependency>
<!-- Hibernate library dependecy end -->
<!-- Tomcat -->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-dbcp</artifactId>
<version>7.0.52</version>
</dependency>
<!-- Log4J -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<exclusions>
<exclusion>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
</exclusions>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.12.1.GA</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
</dependencies>
</project>
user-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<context:annotation-config />
<context:component-scan base-package="com.findlove.controller" />
<bean id="jspViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView"></property>
<property name="prefix" value="/WEB-INF/view/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="classpath:messages"></property>
<property name="defaultEncoding" value="UTF-8"></property>
</bean>
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
p:location="/WEB-INF/jdbc.properties"></bean>
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"
p:driverClassName="${jdbc.driverClassName}"
p:url="${jdbc.databaseurl}" p:username="${jdbc.username}"
p:password="${jdbc.password}"></bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="packagesToScan" value="com.findlove.entity" />
</bean>
<bean id="userDAO" class="com.findlove.dao.user.UserDAOImpl"></bean>
<bean id="userManager" class="com.findlove.service.user.UserManagerImpl"></bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
Any advice as to why I'm getting this error would be greatly appreciated.
Lisa
解决方案
Piece of code from the tutorial you mentioned:
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${jdbc.dialect}</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
This is where hibernate.cfg.xml was specified and, also, where the dialect was put. If you have <property name="dataSource" ref="dataSource" /> for the session factory, you don't need it in the hibernate.cfg.xml.
I would suggest looking again at that's tutorial source code and adjust your code accordingly.
这篇关于当'hibernate.dialect'没有设置hibernate4 tomcat7时，连接不能为空的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
