Я новичок в спящем мире и сталкиваюсь
WARN: GenerationTarget encountered exception accepting command : Error executing DDL via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL via JDBC Statement
исключение, пока я запускаю свою автономную программу в спящей версии 5.2.9. Но в спящей 4 версии весь мой код работает хорошо. Я искал много вопросов и решал, но не рабочий ответ, который я получил.
Файл конфигурации
hibernate.cfg.xml
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/test</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">admin</property>
<property name="hibernate.connection.pool_size">20</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.hbm2ddl.auto">create</property>
<mapping class="com.test.hibernate14417.MyTable"></mapping>
</session-factory>
</hibernate-configuration>
Pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.test</groupId>
<artifactId>Hibernate14417</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<repositories>
</repositories>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.9.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.1-api</artifactId>
<version>1.0.0.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.1.Final</version>
</dependency>
<dependency>
<groupId>net.sourceforge.jtds</groupId>
<artifactId>jtds</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>3.1.11</version>
</dependency>
</dependencies>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
</project>
Файл утилиты
package com.test.hibernate14417;
import org.hibernate.SessionFactory;
import org.hibernate.boot.Metadata;
import org.hibernate.boot.MetadataSources;
import org.hibernate.boot.registry.StandardServiceRegistry;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.service.ServiceRegistry;
public class ExecuteUtil {
private static final SessionFactory SESSION_FACTORY=buildSessionFactory();
private static SessionFactory buildSessionFactory() {
try {
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
.configure("hibernate.cfg.xml").build();
Metadata metadata = new MetadataSources(serviceRegistry).buildMetadata();
return metadata.getSessionFactoryBuilder().build();
} catch (Throwable ex) {
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSESSION_FACTORY() {
return SESSION_FACTORY;
}
public static void shutdown(){
getSESSION_FACTORY().close();
}
}
Файл сущности
package com.test.hibernate14417;
import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Entity
public class MyTable implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private int id;
private String name;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
Основной метод
package com.test.hibernate14417;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
public class Main {
public static void main(String[] args) {
MyTable mt=new MyTable();
mt.setName("Man");
SessionFactory sessionFactory=ExecuteUtil.getSESSION_FACTORY();
Session session=sessionFactory.getCurrentSession();
try {
session.getTransaction().begin();
session.save(mt);
session.getTransaction().commit();
session.close();
sessionFactory.close();
} catch (Exception e) {
System.out.println(e.getStackTrace());
session.getTransaction().rollback();
}
}
Консоль
cd D:\Netbeans\Hibernate14417; "JAVA_HOME=C:\\Program Files\\Java\\jdk1.8.0_121" cmd /c "\"\"C:\\Program Files\\NetBeans 8.2\\java\\maven\\bin\\mvn.bat\" -Dexec.args=\"-classpath %classpath com.test.hibernate14417.Main\" -Dexec.executable=\"C:\\Program Files\\Java\\jdk1.8.0_121\\bin\\java.exe\" -Dmaven.ext.class.path=\"C:\\Program Files\\NetBeans 8.2\\java\\maven-nblib\\netbeans-eventspy.jar\" -Dfile.encoding=UTF-8 org.codehaus.mojo:exec-maven-plugin:1.2.1:exec\""
Running NetBeans Compile On Save execution. Phase execution is skipped and output directories of dependency projects (with Compile on Save turned on) will be used instead of their jar artifacts.
Scanning for projects...
------------------------------------------------------------------------
Building Hibernate14417 1.0-SNAPSHOT
------------------------------------------------------------------------
--- exec-maven-plugin:1.2.1:exec (default-cli) @ Hibernate14417 ---
Apr 14, 2017 10:41:51 AM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.2.9.Final}
Apr 14, 2017 10:41:51 AM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Apr 14, 2017 10:41:53 AM org.hibernate.boot.jaxb.internal.stax.LocalXmlResourceResolver resolveEntity
WARN: HHH90000012: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/hibernate-configuration. Use namespace http://www.hibernate.org/dtd/hibernate-configuration instead. Support for obsolete DTD/XSD namespaces may be removed at any time.
Apr 14, 2017 10:41:54 AM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
Apr 14, 2017 10:41:54 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
Apr 14, 2017 10:41:54 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/test]
Apr 14, 2017 10:41:54 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {user=root, password=****}
Apr 14, 2017 10:41:54 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
Apr 14, 2017 10:41:54 AM org.hibernate.engine.jdbc.connections.internal.PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
Apr 14, 2017 10:41:55 AM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Apr 14, 2017 10:41:55 AM org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl useContextualLobCreation
INFO: HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
Hibernate: drop table if exists hibernate_sequence
Apr 14, 2017 10:41:58 AM org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl getIsolatedConnection
INFO: HHH10001501: Connection obtained from JdbcConnectionAccess [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess@24111ef1] for (non-JTA) DDL execution was not in auto-commit mode; the Connection 'local transaction' will be committed and the Connection will be set into auto-commit mode.
Hibernate: drop table if exists MyTable
Hibernate: create table hibernate_sequence (next_val bigint) type=MyISAM
Apr 14, 2017 10:41:58 AM org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl getIsolatedConnection
INFO: HHH10001501: Connection obtained from JdbcConnectionAccess [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess@531f4093] 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.
Apr 14, 2017 10:41:58 AM org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl handleException
WARN: GenerationTarget encountered exception accepting command : Error executing DDL via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL via JDBC Statement
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:440)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:424)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:315)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:166)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:135)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:121)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:155)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:309)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:445)
at com.test.hibernate14417.ExecuteUtil.buildSessionFactory(ExecuteUtil.java:29)
at com.test.hibernate14417.ExecuteUtil.<clinit>(ExecuteUtil.java:20)
at com.test.hibernate14417.Main.main(Main.java:21)
Caused by: java.sql.SQLException: 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=MyISAM' at line 1
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2926)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1571)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1666)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2972)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2902)
at com.mysql.jdbc.Statement.execute(Statement.java:529)
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54)
... 13 more
Hibernate: insert into hibernate_sequence values ( 1 )
Apr 14, 2017 10:41:58 AM org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl handleException
WARN: GenerationTarget encountered exception accepting command : Error executing DDL via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL via JDBC Statement
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:440)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:424)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:315)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:166)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:135)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:121)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:155)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:309)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:445)
at com.test.hibernate14417.ExecuteUtil.buildSessionFactory(ExecuteUtil.java:29)
at com.test.hibernate14417.ExecuteUtil.<clinit>(ExecuteUtil.java:20)
at com.test.hibernate14417.Main.main(Main.java:21)
Caused by: java.sql.SQLException: Table 'test.hibernate_sequence' doesn't exist
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2926)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1571)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1666)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2972)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2902)
at com.mysql.jdbc.Statement.execute(Statement.java:529)
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54)
... 13 more
Hibernate: create table MyTable (id integer not null, name varchar(255), primary key (id)) type=MyISAM
Apr 14, 2017 10:41:58 AM org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl handleException
WARN: GenerationTarget encountered exception accepting command : Error executing DDL via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL via JDBC Statement
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:440)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:424)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:315)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:166)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:135)
at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:121)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:155)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:309)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:445)
at com.test.hibernate14417.ExecuteUtil.buildSessionFactory(ExecuteUtil.java:29)
at com.test.hibernate14417.ExecuteUtil.<clinit>(ExecuteUtil.java:20)
at com.test.hibernate14417.Main.main(Main.java:21)
Caused by: java.sql.SQLException: 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=MyISAM' at line 1
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2926)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1571)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1666)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2972)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2902)
at com.mysql.jdbc.Statement.execute(Statement.java:529)
at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54)
... 13 more
Apr 14, 2017 10:41:58 AM org.hibernate.tool.schema.internal.SchemaCreatorImpl applyImportSources
INFO: HHH000476: Executing import script 'org.hibernate.tool.schema.internal.exec.ScriptSourceInputNonExistentImpl@7776ab'
Exception in thread "main" org.hibernate.HibernateException: No CurrentSessionContext configured!
at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:454)
at com.test.hibernate14417.Main.main(Main.java:23)
Вам следует попробовать другие диалекты, такие как org.hibernate.dialect.MySQL5Dialect
ИЛИ org.hibernate.dialect.MySQLMyISAMDialect
ИЛИ org.hibernate.dialect.MySQLInnoDBDialect
, чтобы увидеть, какой из них работает для вас.
В общем, ваш текущий диалект генерирует type = MyISAM
, в то время как это должно быть ENGINE = MyISAM
в запросе создания таблицы.
Вы также должны прочитать это: Почему мне нужно настроить диалект SQL источника данных?
В ваших журналах говорится, что этот запрос был выполнен: создать таблицу MyTable (id integer not null, имя varchar (255), тип первичного ключа (id)) = MyISAM
, поэтому вам следует попытаться выполнить этот запрос непосредственно в команде mysql. подсказка, чтобы увидеть, работает ли это для вашей версии MySQL.
Также, в вопросе, укажите свою версию MySQL тоже.
Надеюсь, это поможет !!
Изменение XML-файла конфигурации спящего режима.
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>
Вы используете обновленную версию MySQL
, но используете и old dialect
Используйте либо
<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
ИЛИ
<property name="hibernate.dialect">org.hibernate.dialect.MySQL8Dialect</property>
в файле hibernate.cfg.xml
.
Это мешает вам получить проблемы с диалектом.
Причиной этой ошибки может быть любая из причин ниже: -
Я столкнулся с этой ошибкой, потому что я изменил имена столбцов в своем DATABASE SCRIPT, но забыл изменить его в классе Model / Entity. Итак, после 4 часов выдергивания волос я просто сделал это, и мое приложение начало работать.
Проверьте ваши ошибки стоимости имущества.
Это происходит когда-то, когда вы просто забываете 't' в Dialec , который должен быть Dialect , просто орфографическая ошибка или ошибка в значении, которая есть внутри вашей конфигурации.