我是hibernate世界的新手,面对,
WARN: GenerationTarget encountered exception accepting command : Error executing DDL via JDBC Statement org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL via JDBC Statement
我在hibernate 5.2.9版本中运行我的独立程序时出现异常.但是在hibernate 4版本中我的代码运行良好.我寻找了许多问题并解决了但我没有得到的答案.
Configuration file
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>
Utility file
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(); } }
Entity file
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;
}
}
Main method
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();
}
}
Console
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)
解决方法
您应该尝试使用不同的方言,例如：ororg.hibernate.dialect.MysqL5Dialect或org.hibernate.dialect.MysqLMyISAMDialect或org.hibernate.dialect.MysqLInnoDBDialect,以查看哪种方言适合您.
总而言之,您当前的方言正在生成,类型= MyISAM,而应该是,创建表查询中的ENGINE = MyISAM.
你也应该读这个,Why do I need to configure the SQL dialect of a data source?
你的日志说这个查询是试图执行的,创建表MyTable(id integer not null,primary key(id))type = MyISAM所以你应该尝试直接在MySQL命令提示符下执行该查询看看它是否适用于您的MysqL版本.
另外,有问题请指定您的MysqL版本.
希望能帮助到你 ！！
原文地址：https://www.jb51.cc/java/126509.html
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 dio@foxmail.com 举报，一经查实，本站将立刻删除。
