Spring 教程：创建名为“entityManagerFactory”

Question

我尝试按照有关 springboot 和使用 JPA 访问数据的官方 spring.io教程进行操作。这是关于用 h2 数据库做一些“简单”的操作。关于这个主题还有一些其他问题，但他们的解决方案都不适合我。如果这很重要，我正在使用 java 11 sdk。我什至从教程中下载了 .zip 文件，但无论我做什么，我总是得到以下错误消息：org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not get constructor for org.hibernate.persister.entity.SingleTableEntityPersister    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1699) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:573) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE]这是我的 build.gradle 文件的依赖块dependencies {    // https://mvnrepository.com/artifact/javax.xml.bind/jaxb-api    compile group: 'javax.xml.bind', name: 'jaxb-api', version: '2.3.1'    // https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '2.0.6.RELEASE'    // https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa    compile group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa', version: '2.0.6.RELEASE'// https://mvnrepository.com/artifact/com.h2database/h2    compile group: 'com.h2database', name: 'h2', version: '1.4.197'}

Answer 1

添加此依赖项：

 compile group: 'org.javassist', name: 'javassist', version: '3.23.1-GA'

javassist 在 Java 11 中存在问题。