Hibernate 很难使用 MySQL 创建表答案

【问题标题】：Hibernate has difficult with create table using MySQLHibernate 很难使用 MySQL 创建表
【发布时间】：2018-06-09 18:46:15
【问题描述】：

我正在使用 JavaFX、Maven、Hibernate 等进行架构客户端服务器的学校项目我对单独实现 Hibernate（没有 Spring）有很大的问题。我不确定这是配置、依赖项或 MySQL 的问题：/

hibernate.cfg.xml

<?xml version = "1.0" encoding = "utf-8"?> <!DOCTYPE hibernate-configuration SYSTEM
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration>
    <session-factory>


        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/carrental</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password"></property>

        <property name="connection.pool_size">10</property>

        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

        <property name="current_session_context_class">thread</property>

        <property name="show_sql">true</property>
        <property name="format_sql">true</property>

        <property name="hbm2ddl.auto">update</property>


        <!-- List of mapping files -->
        <mapping class="model.User" />



    </session-factory> </hibernate-configuration>

模型.用户

package model;

import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import java.io.Serializable;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

@Entity
public class User implements Serializable {
    @Id
    @GeneratedValue
    private Integer userId;
    private String login;
    private String passwordHash;
    private Role role = Role.USER;
    private String emailAddress;

    private String firstName;
    private String lastName;
    private String street;
    private String zipCode;
    private String city;
    private String country;
    private String phoneNumber;
    private Boolean isCompany; //false private person //true company
    private String NIP;// Taxpayer Identification Number (TIN) //need only if enity is company


    public enum Role {
        USER, EMPLOYEE, ADMIN;
    }

public User() {
}

//używane do logowania
public User(String login, String password) {
    this.login = login;
    this.passwordHash = hashPassword(password);
}

public User(String login, String password, Role role, String emailAddress, String firstName, String lastName, String street, String zipCode, String city, String country, String phoneNumber, Boolean isCompany, String NIP) {
    this(login,password);
    this.role = role;
    this.emailAddress = emailAddress;
    this.firstName = firstName;
    this.lastName = lastName;
    this.street = street;
    this.zipCode = zipCode;
    this.city = city;
    this.country = country;
    this.phoneNumber = phoneNumber;
    this.isCompany = isCompany;
    this.NIP = NIP;
}


    ////////////////////////////////////////////////////////////////////////
    public Integer getUserId() {
        return userId;
    }

    public String getLogin() {
        return login;
    }

    public String getPasswordHash() {
        return passwordHash;
    }

    public Role getRole() {
        return role;
    }

    public String getEmailAddress() {
        return emailAddress;
    }

    public String getFirstName() {
        return firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public String getStreet() {
        return street;
    }

    public String getZipCode() {
        return zipCode;
    }

    public String getCity() {
        return city;
    }

    public String getCountry() {
        return country;
    }

    public String getPhoneNumber() {
        return phoneNumber;
    }

    public Boolean getCompany() {
        return isCompany;
    }

    public String getNIP() {
        return NIP;
    }


    ////////////////////////////////////////////////////////////////////////


    private static String hashPassword(String password) {

        try {
            MessageDigest messageDigest = MessageDigest.getInstance("SHA-256");
            messageDigest.update(password.getBytes());
            return new String(messageDigest.digest());
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }

        return null;
    }
}

MainTest.java（用于休眠测试的简单主程序）

package server;


import model.User;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class MainTest {
    public static void main(String[] args) {

        Configuration cfg = new Configuration().configure("hibernate.cfg.xml");
        SessionFactory sf = cfg.buildSessionFactory();

//        Session session = sf.openSession();
//        session.beginTransaction();
//        session.save(new User("stiuil06","password"));
//        session.getTransaction().commit();
//        session.close();

    }
}

编译错误

C:\Utilities\Java\jdk-10\bin\java "-javaagent:C:\JetBrains\IntelliJ IDEA 2018.1\lib\idea_rt.jar=18004:C:\JetBrains\IntelliJ IDEA 2018.1\bin" -Dfile.encoding=UTF-8 -classpath "F:\IdeaProjects\CarRental — kopia\target\classes;C:\Users\artur\.m2\repository\com\sun\mail\javax.mail\1.6.1\javax.mail-1.6.1.jar;C:\Users\artur\.m2\repository\org\hibernate\hibernate-core\5.3.0.Final\hibernate-core-5.3.0.Final.jar;C:\Users\artur\.m2\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;C:\Users\artur\.m2\repository\javax\persistence\javax.persistence-api\2.2\javax.persistence-api-2.2.jar;C:\Users\artur\.m2\repository\org\javassist\javassist\3.22.0-GA\javassist-3.22.0-GA.jar;C:\Users\artur\.m2\repository\net\bytebuddy\byte-buddy\1.8.0\byte-buddy-1.8.0.jar;C:\Users\artur\.m2\repository\antlr\antlr\2.7.7\antlr-2.7.7.jar;C:\Users\artur\.m2\repository\org\jboss\spec\javax\transaction\jboss-transaction-api_1.2_spec\1.0.1.Final\jboss-transaction-api_1.2_spec-1.0.1.Final.jar;C:\Users\artur\.m2\repository\org\jboss\jandex\2.0.3.Final\jandex-2.0.3.Final.jar;C:\Users\artur\.m2\repository\com\fasterxml\classmate\1.3.0\classmate-1.3.0.jar;C:\Users\artur\.m2\repository\dom4j\dom4j\1.6.1\dom4j-1.6.1.jar;C:\Users\artur\.m2\repository\org\hibernate\common\hibernate-commons-annotations\5.0.3.Final\hibernate-commons-annotations-5.0.3.Final.jar;C:\Users\artur\.m2\repository\mysql\mysql-connector-java\5.1.6\mysql-connector-java-5.1.6.jar;C:\Users\artur\.m2\repository\org\hibernate\hibernate-entitymanager\5.0.2.Final\hibernate-entitymanager-5.0.2.Final.jar;C:\Users\artur\.m2\repository\org\hibernate\javax\persistence\hibernate-jpa-2.1-api\1.0.0.Final\hibernate-jpa-2.1-api-1.0.0.Final.jar;C:\Users\artur\.m2\repository\org\apache\geronimo\specs\geronimo-jta_1.1_spec\1.1.1\geronimo-jta_1.1_spec-1.1.1.jar;C:\Users\artur\.m2\repository\javax\xml\bind\jaxb-api\2.3.0\jaxb-api-2.3.0.jar;C:\Users\artur\.m2\repository\com\sun\xml\bind\jaxb-impl\2.3.0\jaxb-impl-2.3.0.jar;C:\Users\artur\.m2\repository\org\glassfish\jaxb\jaxb-runtime\2.3.0\jaxb-runtime-2.3.0.jar;C:\Users\artur\.m2\repository\org\glassfish\jaxb\jaxb-core\2.3.0\jaxb-core-2.3.0.jar;C:\Users\artur\.m2\repository\org\glassfish\jaxb\txw2\2.3.0\txw2-2.3.0.jar;C:\Users\artur\.m2\repository\com\sun\istack\istack-commons-runtime\3.0.5\istack-commons-runtime-3.0.5.jar;C:\Users\artur\.m2\repository\org\jvnet\staxex\stax-ex\1.7.8\stax-ex-1.7.8.jar;C:\Users\artur\.m2\repository\com\sun\xml\fastinfoset\FastInfoset\1.2.13\FastInfoset-1.2.13.jar;C:\Users\artur\.m2\repository\javax\activation\activation\1.1.1\activation-1.1.1.jar" server.MainTest
cze 09, 2018 8:34:38 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.3.0.Final}
cze 09, 2018 8:34:38 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector (file:/C:/Users/artur/.m2/repository/com/sun/xml/bind/jaxb-impl/2.3.0/jaxb-impl-2.3.0.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
cze 09, 2018 8:34:39 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.3.Final}
cze 09, 2018 8:34:39 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
cze 09, 2018 8:34:39 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/carrental]
cze 09, 2018 8:34:39 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {password=****, user=root}
cze 09, 2018 8:34:39 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
cze 09, 2018 8:34:39 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 10 (min=1)
cze 09, 2018 8:34:39 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
cze 09, 2018 8:34:39 PM org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl useContextualLobCreation
INFO: HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
cze 09, 2018 8:34:40 PM org.hibernate.type.spi.TypeConfiguration$Scope setSessionFactory
WARN: HHH000233: Scoping types to session factory org.hibernate.internal.SessionFactoryImpl@5cf87cfd after already scoped org.hibernate.internal.SessionFactoryImpl@5cf87cfd
Hibernate: 
cze 09, 2018 8:34:40 PM org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl getIsolatedConnection

    create table hibernate_sequence (
       next_val bigint
    ) type=MyISAM
INFO: HHH10001501: Connection obtained from JdbcConnectionAccess [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess@1caa9eb6] for (non-JTA) DDL execution was not in auto-commit mode; the Connection 'local transaction' will be committed and the Connection will be set into auto-commit mode.
cze 09, 2018 8:34:40 PM org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl handleException
Hibernate: 

WARN: GenerationTarget encountered exception accepting command : Error executing DDL "
    insert into hibernate_sequence values ( 1 )
    create table hibernate_sequence (
       next_val bigint
    ) type=MyISAM" via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "
    create table hibernate_sequence (
       next_val bigint
    ) type=MyISAM" via JDBC Statement
    at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applySqlString(AbstractSchemaMigrator.java:559)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applySqlStrings(AbstractSchemaMigrator.java:504)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.createTable(AbstractSchemaMigrator.java:277)
    at org.hibernate.tool.schema.internal.GroupedSchemaMigratorImpl.performTablesMigration(GroupedSchemaMigratorImpl.java:71)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.performMigration(AbstractSchemaMigrator.java:207)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:114)
    at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:183)
    at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72)
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:310)
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:467)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:708)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:724)
    at server.MainTest.main(MainTest.java:13)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'type=MyISAM' at line 3
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
    at com.mysql.jdbc.Util.getInstance(Util.java:381)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1030)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3491)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3423)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1936)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2536)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2465)
    at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:734)
    at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54)
    ... 13 more

cze 09, 2018 8:34:40 PM org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl handleException
WARN: GenerationTarget encountered exception accepting command : Error executing DDL "
    insert into hibernate_sequence values ( 1 )" via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "
    insert into hibernate_sequence values ( 1 )" via JDBC Statement
    at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applySqlString(AbstractSchemaMigrator.java:559)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applySqlStrings(AbstractSchemaMigrator.java:504)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.createTable(AbstractSchemaMigrator.java:277)
    at org.hibernate.tool.schema.internal.GroupedSchemaMigratorImpl.performTablesMigration(GroupedSchemaMigratorImpl.java:71)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.performMigration(AbstractSchemaMigrator.java:207)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:114)
    at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:183)
    at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72)
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:310)
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:467)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:708)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:724)
    at server.MainTest.main(MainTest.java:13)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'carrental.hibernate_sequence' doesn't exist
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
    at com.mysql.jdbc.Util.getInstance(Util.java:381)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1030)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3491)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3423)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1936)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2536)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2465)
    at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:734)
    at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54)
    ... 13 more

Hibernate: 
cze 09, 2018 8:34:40 PM org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl handleException

    create table User (
WARN: GenerationTarget encountered exception accepting command : Error executing DDL "
       userId integer not null,
    create table User (
        NIP varchar(255),
       userId integer not null,
        city varchar(255),
        NIP varchar(255),
        country varchar(255),
        city varchar(255),
        emailAddress varchar(255),
        country varchar(255),
        firstName varchar(255),
        emailAddress varchar(255),
        isCompany bit,
        firstName varchar(255),
        lastName varchar(255),
        login varchar(255),
        passwordHash varchar(255),
        isCompany bit,
        phoneNumber varchar(255),
        role integer,
        lastName varchar(255),
        street varchar(255),
        login varchar(255),
        zipCode varchar(255),
        passwordHash varchar(255),
        primary key (userId)
        phoneNumber varchar(255),
    ) type=MyISAM
        role integer,
        street varchar(255),
        zipCode varchar(255),
        primary key (userId)
    ) type=MyISAM" via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "
    create table User (
       userId integer not null,
        NIP varchar(255),
        city varchar(255),
        country varchar(255),
        emailAddress varchar(255),
        firstName varchar(255),
        isCompany bit,
        lastName varchar(255),
        login varchar(255),
        passwordHash varchar(255),
        phoneNumber varchar(255),
        role integer,
        street varchar(255),
        zipCode varchar(255),
        primary key (userId)
    ) type=MyISAM" via JDBC Statement
    at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applySqlString(AbstractSchemaMigrator.java:559)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applySqlStrings(AbstractSchemaMigrator.java:504)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.createTable(AbstractSchemaMigrator.java:277)
    at org.hibernate.tool.schema.internal.GroupedSchemaMigratorImpl.performTablesMigration(GroupedSchemaMigratorImpl.java:71)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.performMigration(AbstractSchemaMigrator.java:207)
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:114)
    at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:183)
    at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72)
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:310)
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:467)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:708)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:724)
    at server.MainTest.main(MainTest.java:13)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'type=MyISAM' at line 17
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
    at com.mysql.jdbc.Util.getInstance(Util.java:381)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1030)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3491)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3423)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1936)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2536)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2465)
    at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:734)
    at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54)
    ... 13 more

有人知道怎么回事吗？

【问题讨论】：

标签： java mysql hibernate

【解决方案1】：

我在 Spring Boot 应用程序中遇到了同样的问题。

我使用的是 XAMP。

我通过更改 application.properties

中的 Hibernate Dialect 解决了这个问题

来自

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

致

spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect

【讨论】：

【解决方案2】：

在stacktrace中参考这一行：

您的 SQL 语法有错误；检查手册对应于您的 MariaDB 服务器版本，以便使用正确的语法靠近'type=MyISAM'行

这表明您使用的是 MySQL 的更新版本，但使用的是旧方言。

改变

<property name="dialect">org.hibernate.dialect.MySQLDialect</property>

到

<property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>

【讨论】：

【解决方案3】：

您当前的dialect 生成以下内容

type=MyISAM

需要修改的地方

ENGINE=MyISAM

在 Hibernate 的创建表查询中。

要实现这一点，您需要使用不同 dialects。因为MySQLDialect 是旧的，尽管您使用的是MySQL 的更新版本。

使用任一，

<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>

或

<property name="hibernate.dialect">org.hibernate.dialect.MySQL8Dialect</property>

在hibernate.cfg.xml 文件中。

现在您可以继续创建查询，而不会出现任何dialect 错误。

【讨论】：

【解决方案4】：

你能在 Id 属性上添加注释并尝试吗的

@GeneratedValue(strategy = GenerationType.IDENTITY)

并让 DateBase 管理主键的增量：

AUTO_INCREMENT 主键

希望这会有所帮助！

【讨论】：

【解决方案5】：

我遇到了错误“通过 JDBC 语句执行 DDL "create table hibernate_sequence (next_val bigint) type=MyISAM" 时出错”

我将 org.hibernate.dialect.MySQLDialect 更改为 org.hibernate.dialect.MySQL5Dialect 并且成功了

【讨论】：