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我試圖設置一個JPA的小型工作示例，但是當我運行代碼時，錯誤：執行加載命令時出錯：org.hibernate.exception.SQLGrammarException：無法在線程「主」中提取ResultSet異常
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import encje.Klient;
import encje.Zamowienie;
public class SzkolenieJPA {
public static void main(String[] args) {
EntityManagerFactory fabryka = Persistence.createEntityManagerFactory("jpaHibernateTest");
EntityManager menadzer = fabryka.createEntityManager();
Klient przykladowy = menadzer.find(Klient.class, 1);
for(Zamowienie z : przykladowy.getZamowienia())
System.out.println(z.getAdres() + " "+ z.getData() + " "+ przykladowy.getNazwisko());
menadzer.close();
}
}
package encje;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import javax.persistence.*;
@Entity
@Table(name="klient")
public class Klient {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int id;
@Column(name="imie", length=50, nullable=false)
private String imie;
@Column(name="nazwisko", length=50, nullable=false)
private String nazwisko;
@OneToMany(fetch=FetchType.EAGER, cascade=CascadeType.ALL, mappedBy="klient")
private Set<Zamowienie> zamowienia;
public Klient(){
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getImie() {
return imie;
}
public void setImie(String imie) {
this.imie = imie;
}
public String getNazwisko() {
return nazwisko;
}
public void setNazwisko(String nazwisko) {
this.nazwisko = nazwisko;
}
public Set<Zamowienie> getZamowienia() {
return zamowienia;
}
public void setZamowienia(Set<Zamowienie> zamowienia) {
this.zamowienia = zamowienia;
}
}
package encje;
import java.util.Date;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.*;
import javax.persistence.Table;
@Entity
@Table(name="zamowienie")
public class Zamowienie {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int id;
@Column(name="data")
@Temporal(TemporalType.DATE)
private Date data;
@Column(name="imie", length=50)
private String adres;
@ManyToOne
@JoinColumn(name="klient", nullable=false)
private Klient klient;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public Date getData() {
return data;
}
public void setData(Date data) {
this.data = data;
}
public String getAdres() {
return adres;
}
public void setAdres(String adres) {
this.adres = adres;
}
public Klient getKlient() {
return klient;
}
public void setKlient(Klient klient) {
this.klient = klient;
}
}
persistence.xml：
<?xml version="1.0" encoding="UTF-8" ?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="jpaHibernateTest" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.connection.username" value="root" />
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver" />
<property name="hibernate.connection.password" value="" />
<property name="hibernate.connection.url" value="jdbc:mysql://localhost/szkolenie" />
<property name="hibernate.cache.provider_class" value="org.hibernate.cache.NoCacheProvider" />
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
</properties>
</persistence-unit>
CREATE TABLE IF NOT EXISTS `klient` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`imie` varchar(50) COLLATE utf8_polish_ci NOT NULL,
`nazwisko` varchar(50) COLLATE utf8_polish_ci NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_polish_ci AUTO_INCREMENT=4 ;
INSERT INTO `klient` (`id`, `imie`, `nazwisko`) VALUES
(1, 'janek', 'kowalski'),
(2, 'marian', 'nowak'),
(3, 'andrzej', 'nowak');
CREATE TABLE IF NOT EXISTS `zamowienie` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`data` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`adres` text NOT NULL,
`klient` int(11) DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `klient_zamowienie` (`klient`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=5 ;
INSERT INTO `zamowienie` (`id`, `data`, `adres`, `klient`) VALUES
(1, '2014-06-13 14:45:54', 'Adres', 1),
(2, '2014-06-14 11:58:43', 'zamowienie mariana nowaka', 2),
(3, '2014-06-02 08:31:22', 'zamowienie andrzeja nowaka', 3),
(4, '2014-06-14 11:59:11', 'zamowienie andrzeja nowaka nr 2', 3);
我的錯誤：
juin 14, 2014 7:51:22 PM org.hibernate.ejb.HibernatePersistence logDeprecation
WARN: HHH015016: Encountered a deprecated javax.persistence.spi.PersistenceProvider [org.hibernate.ejb.HibernatePersistence]; use [org.hibernate.jpa.HibernatePersistenceProvider] instead.
juin 14, 2014 7:51:22 PM org.hibernate.ejb.HibernatePersistence logDeprecation
WARN: HHH015016: Encountered a deprecated javax.persistence.spi.PersistenceProvider [org.hibernate.ejb.HibernatePersistence]; use [org.hibernate.jpa.HibernatePersistenceProvider] instead.
juin 14, 2014 7:51:22 PM org.hibernate.ejb.HibernatePersistence logDeprecation
WARN: HHH015016: Encountered a deprecated javax.persistence.spi.PersistenceProvider [org.hibernate.ejb.HibernatePersistence]; use [org.hibernate.jpa.HibernatePersistenceProvider] instead.
juin 14, 2014 7:51:22 PM org.hibernate.jpa.internal.util.LogHelper logPersistenceUnitInformation
INFO: HHH000204: Processing PersistenceUnitInfo [
name: jpaHibernateTest
...]
juin 14, 2014 7:51:22 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.3.5.Final}
juin 14, 2014 7:51:22 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
juin 14, 2014 7:51:22 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
juin 14, 2014 7:51:22 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.4.Final}
juin 14, 2014 7:51:22 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH000402: Using Hibernate built-in connection pool (not for production use!)
juin 14, 2014 7:51:22 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost/szkolenie]
juin 14, 2014 7:51:22 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000046: Connection properties: {user=root, password=****}
juin 14, 2014 7:51:22 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000006: Autocommit mode: false
juin 14, 2014 7:51:22 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
juin 14, 2014 7:51:23 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
juin 14, 2014 7:51:23 PM org.hibernate.engine.jdbc.internal.LobCreatorBuilder useContextualLobCreation
INFO: HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
juin 14, 2014 7:51:23 PM org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory <init>
INFO: HHH000397: Using ASTQueryTranslatorFactory
juin 14, 2014 7:51:23 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 1054, SQLState: 42S22
juin 14, 2014 7:51:23 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Unknown column 'zamowienia1_.imie' in 'field list'
juin 14, 2014 7:51:23 PM org.hibernate.event.internal.DefaultLoadEventListener onLoad
INFO: HHH000327: Error performing load command : org.hibernate.exception.SQLGrammarException: could not extract ResultSet
Exception in thread "main" javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not extract ResultSet
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1763)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1694)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1141)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1068)
at SzkolenieJPA.main(SzkolenieJPA.java:15)
Caused by: org.hibernate.exception.SQLGrammarException: could not extract ResultSet
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:123)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:89)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.getResultSet(AbstractLoadPlanBasedLoader.java:449)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeQueryStatement(AbstractLoadPlanBasedLoader.java:202)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:137)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:102)
at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:186)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:4126)
at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:502)
at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:467)
at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:212)
at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:274)
at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:150)
at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1070)
at org.hibernate.internal.SessionImpl.access$2000(SessionImpl.java:176)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.load(SessionImpl.java:2551)
at org.hibernate.internal.SessionImpl.get(SessionImpl.java:955)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1110)
... 2 more
Caused by: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Unknown column 'zamowienia1_.imie' in 'field list'
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3283)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1332)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1467)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:80)
... 18 more
一些建議或幫助一點請