java - 已解决 PersistenceUnit 无法构建 Hibernate SessionFactory

Question

我正在尝试学习如何使用 spring 并连接到数据库。这实际上是我的第一次尝试。我不明白为什么我不断收到这个错误。

Caused by: javax.persistence.PersistenceException: [PersistenceUnit: bateaumoussaillonJDBC] 
Unable to build Hibernate SessionFactory

这是我的道器

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;
}
}

persistence.xml 文件

<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>

上下文配置文件，这里没什么特别的

<?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>

最后是 pom.xml 文件：

<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>

我究竟做错了什么？谁能帮我？

标签： javaspringhibernatemaven