jpa 异常错误：执行DDL时出错

u5i3ibmn  于 2022-11-14  发布在  其他
关注(0)|答案(6)|浏览(240)

在尝试创建上述实体时，我收到CommandAcceptanceException，并且无法在数据库中创建表，请告诉我如何修复它。
application.properties 文件

spring.datasource.url= jdbc:mysql://localhost:3307/mapping

    spring.datasource.username=root

    spring.datasource.password=admin

    spring.jpa.hibernate.ddl-auto=create-drop
    spring.jpa.show-sql=true
    spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQLInnoDBDialect

Java类别：

@Entity
        @Table(name="BOOKS")
        public class Book {

            @Id
            @Column(name="bookId")
            private Long id;
            @Column(name="TITLE")
            private String title;
            @Column(name="AUTHOR")
            private String author;
            public Book(Long id, String title, String author) {
                super();
                this.id = id;
                this.title = title;
                this.author = author;
            }
            public Long getId() {
                return id;
            }
            public void setId(Long id) {
                this.id = id;
            }
            public String getTitle() {
                return title;
            }
            public void setTitle(String title) {
                this.title = title;
            }
            public String getAuthor() {
                return author;
            }
            public void setAuthor(String author) {
                this.author = author;
            }
            public Book() {
                super();
                // TODO Auto-generated constructor stub
            }


        }

构建.gradle文件：

plugins {
    id 'org.springframework.boot' version '2.2.2.RELEASE'
    id 'io.spring.dependency-management' version '1.0.8.RELEASE'
    id 'java'
}

group = 'org.springframework.hib'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    testCompile group: 'com.h2database', name: 'h2', version: '1.4.200'
    runtimeOnly 'mysql:mysql-connector-java'
    testImplementation('org.springframework.boot:spring-boot-starter-test') {
        exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
    }
}

test {
    useJUnitPlatform()
}

控制台：. _________ _ /\ /'__ _ （）_ ___ __ \\（（）|'|“”||' / '|\ \\ /**）||* ）| ||||||（* 页次||））））'||页：1||||||、|/ / //==========||==============|__/=////：： Spring Boot ：（版本2.2.2）

2020-01-09 21:52:36.380  INFO 14108 --- [           main] com.learn.hib.LearnHibernateApplication  : Starting LearnHibernateApplication on LAPTOP-B759SS03 with PID 14108 (E:\learn-space\learn-hibernate\bin\main started by Lenovo in E:\learn-space\learn-hibernate)
        2020-01-09 21:52:36.380  INFO 14108 --- [           main] com.learn.hib.LearnHibernateApplication  : No active profile set, falling back to default profiles: default
        2020-01-09 21:52:36.974  INFO 14108 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
        2020-01-09 21:52:37.037  INFO 14108 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 46ms. Found 1 JPA repository interfaces.
        2020-01-09 21:52:37.302  INFO 14108 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
        2020-01-09 21:52:37.521  INFO 14108 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
        2020-01-09 21:52:37.535  INFO 14108 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
        2020-01-09 21:52:37.535  INFO 14108 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.29]
        2020-01-09 21:52:37.644  INFO 14108 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
        2020-01-09 21:52:37.644  INFO 14108 --- [           main] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1217 ms
        2020-01-09 21:52:37.816  INFO 14108 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [name: default]
        2020-01-09 21:52:37.878  INFO 14108 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate Core {5.4.9.Final}
        2020-01-09 21:52:38.003  INFO 14108 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
        2020-01-09 21:52:38.097  INFO 14108 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
        2020-01-09 21:52:39.206  INFO 14108 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Start completed.
        2020-01-09 21:52:39.216  INFO 14108 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.MySQLInnoDBDialect
        Hibernate: create table books (book_id bigint not null, author varchar(255), title varchar(255), primary key (book_id)) type=InnoDB
        2020-01-09 21:52:39.935  WARN 14108 --- [           main] o.h.t.s.i.ExceptionHandlerLoggedImpl     : GenerationTarget encountered exception accepting command : Error executing DDL "create table books (book_id bigint not null, author varchar(255), title varchar(255), primary key (book_id)) type=InnoDB" via JDBC Statement

        org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "create table books (book_id bigint not null, author varchar(255), title varchar(255), primary key (book_id)) type=InnoDB" via JDBC Statement
            at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applySqlString(AbstractSchemaMigrator.java:559) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applySqlStrings(AbstractSchemaMigrator.java:504) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.createTable(AbstractSchemaMigrator.java:277) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.tool.schema.internal.GroupedSchemaMigratorImpl.performTablesMigration(GroupedSchemaMigratorImpl.java:71) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.performMigration(AbstractSchemaMigrator.java:207) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:114) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:184) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:73) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:320) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:462) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1237) [hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) [spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) [spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:391) [spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:378) [spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) [spring-orm-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1855) [spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1792) [spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) [spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) [spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) [spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) [spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) [spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1108) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
            at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
            at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
            at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
            at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
            at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
            at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) ~[spring-boot-2.2.2.RELEASE.jar:2.2.2.RELEASE]
            at com.learn.hib.LearnHibernateApplication.main(LearnHibernateApplication.java:10) ~[main/:na]
        Caused by: java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'type=InnoDB' at line 1
            at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120) ~[mysql-connector-java-8.0.18.jar:8.0.18]
            at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.18.jar:8.0.18]
            at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.18.jar:8.0.18]
            at com.mysql.cj.jdbc.StatementImpl.executeInternal(StatementImpl.java:764) ~[mysql-connector-java-8.0.18.jar:8.0.18]
            at com.mysql.cj.jdbc.StatementImpl.execute(StatementImpl.java:648) ~[mysql-connector-java-8.0.18.jar:8.0.18]
            at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:95) ~[HikariCP-3.4.1.jar:na]
            at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java) ~[HikariCP-3.4.1.jar:na]
            at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54) ~[hibernate-core-5.4.9.Final.jar:5.4.9.Final]
            ... 34 common frames omitted

        2020-01-09 21:52:39.950  INFO 14108 --- [           main] o.h.e.t.j.p.i.JtaPlatformInitiator       : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
        2020-01-09 21:52:39.950  INFO 14108 --- [           main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
        2020-01-09 21:52:40.028  WARN 14108 --- [           main] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
        2020-01-09 21:52:40.528  INFO 14108 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
        2020-01-09 21:52:40.837  INFO 14108 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
        2020-01-09 21:52:40.837  INFO 14108 --- [           main] com.learn.hib.LearnHibernateApplication  : Started LearnHibernateApplication in 4.831 seconds (JVM running for 6.101)
jpa

6条答案

按热度按时间
pepwfjgg

pepwfjgg1#

你只需要改变
将spring.jpa.hibernate.ddl-auto属性设置为update或create
和
spring.jpa.properties.hibernate.dialect到org.hibernate.dialect.MySQL5InnoDBDialect（如Patel Romil所建议的），一切都会正常工作。
create-drop通常用于测试目的，当您希望在应用程序启动时创建一个表，在测试中执行一些数据库事务，然后在测试用例清理时删除该表。在测试用例执行完成后，该表将不存在于数据库中。
现在转到spring.jpa.properties.hibernate.dialect，使用org.hibernate.dialect.MySQL5InnoDBDialect而不是org.hibernate.dialect.MySQLInnoDBDialect会使Hibernate将engine=InnoDB而不是type=InnoDB附加到查询中，因此您的查询在语法上是正确的（仅供参考，MySQL 5.0中不赞成使用type= InnoDB，My SQL 5.1中已将其删除）
有关spring.jpa.hibernate.ddl-auto属性及其值的更多详细信息，以下是可接受的答案How does spring.jpa.hibernate.ddl-auto property exactly work in Spring?

赞(0）分享  回复(0）举报  2022-11-14
y0u0uwnf

y0u0uwnf2#

替换

spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQLInnoDBDialect

结束日期

spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5InnoDBDialect
hibernate.dialect.storage_engine=innodb
spring.jpa.database-platform: org.hibernate.dialect.MySQL5InnoDBDialect
赞(0）分享  回复(0）举报  2022-11-14
5lhxktic

5lhxktic3#

我们在使用MYSQL的保留关键字时遇到此错误。保留关键字示例：order不要用保留关键字命名实体。下面是link供参考
此问题的解决方案可以是重命名实体或添加此属性

spring.jpa.properties.hibernate.globally_quoted_identifiers=true

在您的application.properties文件中
或

spring
  jpa:
    properties:
      hibernate:
        globally_quoted_identifiers: true

到应用程序.yaml文件

赞(0）分享  回复(0）举报  2022-11-14
4ktjp1zp

4ktjp1zp4#

在我的例子中，我在Entity类中有一个字符串字段，如

@Column(name = "text", length = 65535)
private String text;

进行如下变更后，问题得到解决。

@Lob
@Column(name = "text")
private String text;
赞(0）分享  回复(0）举报  2022-11-14
js4nwp54

js4nwp545#

输入application.properties文件
数据hibernate.dialect.storage库平台：org.hibernate.dialect.MySQL5InnoDBDialect
然后运行，它将工作。

赞(0）分享  回复(0）举报  2022-11-14
cunj1qz1

cunj1qz16#

我意识到，如果mysql引擎类型与您要连接的表的引擎类型不同，则异常将是相同的！

赞(0）分享  回复(0）举报  2022-11-14
我来回答

相关问题

    查看更多

    热门标签

    更多
    JavaquerypythonNode开发语言requestUtil数据库Table后端算法LoggerMessageElementParser

    最新问答

    更多
    • 蜀ICP备13028337号-1 大数据知识库 https://www.saoniuhuo.com © All rights reserved
    • 本站内容来源互联网,如果侵犯您的权益请联系我们删除, 联系方式：448109455@qq.com