我正在尝试将我的PostgreSQL数据库与hibernate框架连接,但我遇到了以下错误。我尝试了以前发布的问题和论坛的建议,但我不能帮助自己。 (我在Eclipse中使用spring框架)
的UserDetails
package sample.hibernate.dto;
import javax.persistence.Entity;
import javax.persistence.Id;
@Entity
public class UserDetails {
@Id
private int userid;
private String userName;
public int getUserid() {
return userid;
}
public void setUserid(int userid) {
this.userid = userid;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
}
HibernateTest
package com.sample.hibernate;
import sample.hibernate.dto.UserDetails;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateTest {
public static void main(String[] args){
UserDetails user = new UserDetails();
user.setUserid(1);
user.setUserName("First User");
SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
Session session = sessionFactory.openSession();
session.beginTransaction();
session.save(user);
session.getTransaction().commit();
}
}
的hibernate.cfg.xml
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<!-- <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
<property name="connection.url">jdbc:hsqldb:hsql://localhost/TestDB</property> -->
<property name="connection.driver_class">org.postgresql.Driver</property>
<property name="connection.url">jdbc:postgresql://localhost:8080/utilitydb</property>
<property name="connection.username"></property>
<property name="connection.password"></property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">
org.hibernate.dialect.PostgresSQLDialect
</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<property name="cache.use_query_cache">true</property>
<property name="cache.use_second_level_cache">true</property>
<property name="cache.use_structured_entries">true</property>
<property name="cache.region.factory_class">org.hibernate.cache.EhCacheRegionFactory</property>
<property name="net.sf.ehcache.configurationResourceName">/hibernate-config/ehcache.xml</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<mapping resource="hibernate-config/domain/Event.hbm.xml"/>
<mapping resource="hibernate-config/domain/Person.hbm.xml"/>
<mapping resource="hibernate-config/domain/PhoneNumber.hbm.xml"/>
<mapping resource="hibernate-config/domain/Account.hbm.xml"/>
<mapping resource="hibernate-config/domain/HolidayCalendar.hbm.xml"/>
<mapping resource="hibernate-config/domain/Item.hbm.xml"/>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">create</property>
<!-- Name the annotated entity class -->
<mapping class="sample.hibernate.dto.UserDetails"/>
</session-factory>
</hibernate-configuration>
Maven Dependencies
<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>org.springframework.samples</groupId>
<artifactId>WebCrawler</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<!-- Generic properties -->
<java.version>1.6</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<!-- Spring -->
<spring-framework.version>3.2.3.RELEASE</spring-framework.version>
<!-- Hibernate / JPA -->
<hibernate.version>4.2.1.Final</hibernate.version>
<!-- Logging -->
<logback.version>1.0.13</logback.version>
<slf4j.version>1.7.5</slf4j.version>
<!-- Test -->
<junit.version>4.11</junit.version>
</properties>
<dependencies>
<!-- Spring and Transactions -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring-framework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring-framework.version}</version>
</dependency>
<!-- Logging with SLF4J & LogBack -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
<scope>runtime</scope>
</dependency>
<!-- Hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>
<!-- Hibernate Entity recent -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.10.Final</version>
</dependency>
<!-- Hibernate Core -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.3.10.Final</version>
</dependency>
<!-- Test Artifacts -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring-framework.version}</version>
<scope>test</scope>
</dependency>
<!-- J UNIT -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- J SOUP -->
<dependency>
<!-- jsoup HTML parser library @ http://jsoup.org/ -->
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>1.8.2</version>
</dependency>
<!-- POSTgreSQL JDBC -->
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901-1.jdbc4</version>
</dependency>
</dependencies>
</project>
错误
Exception in thread "main" org.hibernate.MappingException: invalid configuration
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2160)
at org.hibernate.cfg.Configuration.configure(Configuration.java:2077)
at org.hibernate.cfg.Configuration.configure(Configuration.java:2056)
at tut.fast.hibernate.HibernateTest.main(HibernateTest.java:16)
Caused by: org.xml.sax.SAXParseException; lineNumber: 59; columnNumber: 23; The content of element type "session-factory" must match "(property*,mapping*,(class-cache|collection-cache)*,event*,listener*)".
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleEndElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.endElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2157)
... 3 more
经过一些建议后,我在cfg.XML文档中进行了更改
<!-- Database connection settings -->
<!-- <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
<property name="connection.url">jdbc:hsqldb:hsql://localhost/TestDB</property> -->
<property name="connection.driver_class">org.postgresql.Driver</property>
<property name="connection.url">jdbc:postgresql://localhost:8080/utilitydb</property>
<property name="connection.username"></property>
<property name="connection.password"></property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">
org.hibernate.dialect.PostgresSQLDialect
</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<property name="cache.use_query_cache">true</property>
<property name="cache.use_second_level_cache">true</property>
<property name="cache.use_structured_entries">true</property>
<property name="cache.region.factory_class">org.hibernate.cache.EhCacheRegionFactory</property>
<property name="net.sf.ehcache.configurationResourceName">/hibernate-config/ehcache.xml</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">create</property>
<mapping resource="hibernate-config/domain/Event.hbm.xml"/>
<mapping resource="hibernate-config/domain/Person.hbm.xml"/>
<mapping resource="hibernate-config/domain/PhoneNumber.hbm.xml"/>
<mapping resource="hibernate-config/domain/Account.hbm.xml"/>
<mapping resource="hibernate-config/domain/HolidayCalendar.hbm.xml"/>
<mapping resource="hibernate-config/domain/Item.hbm.xml"/>
<!-- Name the annotated entity class -->
<mapping class="tut.fast.vivek.hibernate.dto.UserDetails"/>
,但我仍然遇到一些错误,
Exception in thread "main" org.hibernate.MappingNotFoundException: resource: hibernate-config/domain/Event.hbm.xml not found
at org.hibernate.cfg.Configuration.addResource(Configuration.java:769)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:2257)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:2229)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2209)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2162)
at org.hibernate.cfg.Configuration.configure(Configuration.java:2077)
at org.hibernate.cfg.Configuration.configure(Configuration.java:2056)
at tut.fast.hibernate.HibernateTest.main(HibernateTest.java:16)