Я пытаюсь научиться использовать Spring и подключаться к базе данных. Это на самом деле моя первая попытка. Я не могу понять, почему я продолжаю получать эту ошибку.
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: bateaumoussaillonJDBC] Unable to build Hibernate SessionFactory
Это мой инструмент Dao
package com.thp.spring.simplecontext.dao.impl; import java.util.List; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; import javax.persistence.PersistenceContext; import org.springframework.stereotype.Component; import com.thp.spring.simplecontext.dao.MoussaillonDAO; import com.thp.spring.simplecontext.entity.Moussaillon; @Component public class MoussaillonDAOImpl implements MoussaillonDAO{ @PersistenceContext EntityManagerFactory emf=Persistence.createEntityManagerFactory("bateaumoussaillonJDBC"); EntityManager em=emf.createEntityManager(); @Override public int create(Moussaillon moussaillon) { em.persist(moussaillon); return 0; } @Override public Moussaillon update(Moussaillon moussaillon, String firstName, String lastName, String config) { // TODO Auto-generated method stub return null; } @Override public void delete(Moussaillon moussaillon) { // TODO Auto-generated method stub } @Override public Moussaillon findById(int id) { // TODO Auto-generated method stub return null; } @Override public List<Moussaillon> findAll() { // TODO Auto-generated method stub return null; } @Override public List<Moussaillon> findAllByBateau(int bateauId) { // TODO Auto-generated method stub return null; } }
Постоянство. xml file
<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_2_0.xsd" version="2.0"> <persistence-unit name="bateaumoussaillonJDBC" transaction-type="RESOURCE_LOCAL"> <!-- Persistence provider --> <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider> <!-- Entity classes --> <class>com.thp.spring.simplecontext.entity.Moussaillon></class> <class>com.thp.spring.simplecontext.entity.Bateau></class> <class>com.thp.spring.simplecontext.dao.impl.MoussaillonDAOImpl></class> <class>com.thp.spring.simplecontext.dao.impl.BateauDAOImpl></class> <properties> <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" /> <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/bateaumoussaillonJDBC?serverTimezone=UTC" /> <property name="javax.persistence.jdbc.user" value="root" /> <property name="javax.persistence.jdbc.password" value="" /> <property name="hibernate.show_sql" value="true" /> <property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" /> <!-- <property name="hibernate.hbm2ddl.auto" value="update" /> <property name="show_sql" value="true" /> <property name="hibernate.temp.use_jdbc_metadata_defaults" value="false" /> <property name="hibernate.format_sql" value="true" /> <property name="hibernate.use_sql_comments" value="true" /> --> </properties> </persistence-unit>
Файл конфигурации контекста, здесь ничего особенного
<?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:p="http://www.springframework.org/schema/p" 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:tx="http://www.springframework.org/schema/tx" enter code herexmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.2.xsd"> <context:component-scan base-package="com.thp.spring.simplecontext" /> <!-- Initialization for data source --> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/bateaumoussaillonJDBC?serverTimezone=UTC" /> <property name="username" value="root" /> <property name="password" value="" /> </bean>
И, наконец, файл 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 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.thp.tuto</groupId> <artifactId>simple-spring-context</artifactId> <version>0.0.1-SNAPSHOT</version> <properties> <spring.version>5.1.6.RELEASE</spring.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</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-web</artifactId> <version>${spring.version}</version> </dependency> <!--HIBERNATE --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version>5.0.2.Final</version> </dependency> <!-- MySQL connector--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.44</version> <scope>runtime</scope> </dependency> <!-- API, java.xml.bind module --> <dependency> <groupId>jakarta.xml.bind</groupId> <artifactId>jakarta.xml.bind-api</artifactId> <version>2.3.2</version> </dependency> </dependencies>
Что я делаю не так? Кто-нибудь может мне помочь?