我是Eclipse IDE。 我已经正确配置了休眠模式，但仍然出现此错误。
目录结构：
HibernateProject-Java资源-Src
-com.project -Employeee.java -Testjdbc.java（包含主函数） -hibernate.cfg.xml
Employee.java
package com.package;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="employeee")
public class Employeee {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Column(name="Empcode")
private int Empcode;
@Column(name="EmpName")
private String EmpName;
@Column(name="EmpDesignation")
private String EmpDesignation;
@Column(name="EmpDOB")
private Date EmpDOB;
@Column(name="EmpJOD")
private Date EmpJOD;
@Column(name="EmpAge")
private int EmpAge;
@Column(name="EmpBasic_Pay")
private double EmpBasic_Pay;
public int getEmpcode() {
return Empcode;
}
public void setEmpcode(int empcode) {
Empcode = empcode;
}
public String getEmpName() {
return EmpName;
}
public void setEmpName(String empName) {
EmpName = empName;
}
public String getEmpDesignation() {
return EmpDesignation;
}
public void setEmpDesignation(String empDesignation) {
EmpDesignation = empDesignation;
}
public Date getEmpDOB() {
return EmpDOB;
}
public void setEmpDOB(Date empDOB) {
EmpDOB = empDOB;
}
public Date getEmpJOD() {
return EmpJOD;
}
public void setEmpJOD(Date empJOD) {
EmpJOD = empJOD;
}
public int getEmpAge() {
return EmpAge;
}
public void setEmpAge(int empAge) {
EmpAge = empAge;
}
public double getEmpBasic_Pay() {
return EmpBasic_Pay;
}
public void setEmpBasic_Pay(double empBasic_Pay) {
EmpBasic_Pay = empBasic_Pay;
}
public Employeee() {
}
public Employeee(int empcode, String empName, String empDesignation, java.util.Date sdate, java.util.Date edate, int empAge,
double empBasic_Pay) {
super();
Empcode = empcode;
EmpName = empName;
EmpDesignation = empDesignation;
EmpDOB = sdate;
EmpJOD = edate;
EmpAge = empAge;
EmpBasic_Pay = empBasic_Pay;
}
@Override
public String toString() {
return "Student [Empcode=" + Empcode + ", EmpName=" + EmpName + ", EmpDesignation=" + EmpDesignation
+ ", EmpDOB=" + EmpDOB + ", EmpJOD=" + EmpJOD + ", EmpAge=" + EmpAge + ", EmpBasic_Pay=" + EmpBasic_Pay
+ "]";
}
}
Testjdbc.java
package com.package;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import com.wipro.Employeee;
public class TestJDBC {
public static void main(String[] args) {
// create session factory
SessionFactory factory = new Configuration()
.configure("hibernate.cfg.xml")
.addAnnotatedClass(Employeee.class)
.buildSessionFactory();
// create session
Session session = factory.getCurrentSession();
try {
// create a student object
System.out.println("Creating new student object...");
SimpleDateFormat sdf=new SimpleDateFormat("yyyy/MM/dd");
java.util.Date sdate=sdf.parse("2018/07/22");
java.util.Date edate=sdf.parse("2019/07/22");
//empcode empName empDesignation empDOB empJOD empAge empBasic_Pay;
Employeee emp=new Employeee(101,"ABC","Engineer",sdate,edate,25,250000.00);
// start a transaction
session.beginTransaction();
// save the student object
System.out.println("Saving the student...");
session.save(emp);
// commit transaction
session.getTransaction().commit();
System.out.println("Done!");
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
factory.close();
}
}
}
hibernate.cfg.xml
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- JDBC Database connection settings -->
<property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/jdbcassignment?useSSL=false&serverTimezone=UTC</property>
<property name="connection.username">root</property>
<property name="connection.password">tiger</property>
<!-- JDBC connection pool settings ... using built-in test pool -->
<property name="connection.pool_size">1</property>
<!-- Select our SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Echo the SQL to stdout -->
<property name="show_sql">true</property>
<!-- Set the current session context -->
<property name="current_session_context_class">thread</property>
</session-factory>
</hibernate-configuration>
错误：
Aug 25, 2018 6:13:07 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.3.1.Final}
Aug 25, 2018 6:13:07 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Aug 25, 2018 6:13:07 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.3.Final}
Aug 25, 2018 6:13:07 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
Aug 25, 2018 6:13:07 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [com.mysql.cj.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/jdbcassignment?useSSL=false&serverTimezone=UTC]
Aug 25, 2018 6:13:07 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {user=root, password=****}
Aug 25, 2018 6:13:07 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
Aug 25, 2018 6:13:07 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 1 (min=1)
Aug 25, 2018 6:13:07 PM org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator initiateService
WARN: HHH000342: Could not obtain connection to query metadata : null
Aug 25, 2018 6:13:07 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Aug 25, 2018 6:13:07 PM org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl makeLobCreatorBuilder
INFO: HHH000422: Disabling contextual LOB creation as connection was null
Aug 25, 2018 6:13:07 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 0, SQLState: 08001
Aug 25, 2018 6:13:07 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Public Key Retrieval is not allowed
Exception in thread "main" org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:275)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:179)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:119)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:84)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:474)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:85)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:689)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:724)
at com.wipro.TestJDBC.main(TestJDBC.java:23)
Caused by: org.hibernate.exception.JDBCConnectionException: Error calling Driver#connect
at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:48)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111)
at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.convertSqlException(BasicConnectionCreator.java:118)
at org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:41)
at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:58)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections.addConnections(DriverManagerConnectionProviderImpl.java:363)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections.<init>(DriverManagerConnectionProviderImpl.java:282)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections.<init>(DriverManagerConnectionProviderImpl.java:260)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections$Builder.build(DriverManagerConnectionProviderImpl.java:401)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildPool(DriverManagerConnectionProviderImpl.java:112)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:75)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:100)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:246)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:145)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:94)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263)
... 14 more
Caused by: java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:832)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)
at org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:38)
... 29 more
请查看是否可以提供帮助。