hibernate
初学hibernate,在线等大家解答哦，不胜感激
student.java代码
package com.hibernate.model;
public class student {
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;
}
private int id;
private String name;
private int age;
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
StudentTest.java代码
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import com.hibernate.model.student;
public class studentTest {
public static void main(String[] args) {
student s=new student();
s.setAge(1);
s.setId(001);
s.setName("yatou");
Configuration cfg=new Configuration();
SessionFactory sf = cfg.configure().buildSessionFactory();
Session session=sf.openSession();
session.beginTransaction();
session.save(s);
session.getTransaction().commit();
session.close();
sf.close();
}
}
hibernate.cfg.xml代码
<?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>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost/hibernate</property>
<property name="connection.username">root</property>
<property name="connection.password">532129</property>
<!-- JDBC connection pool (use the built-in) -->
<!-- <property name="connection.pool_size">1</property> -->
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Enable Hibernate's automatic session context management -->
<!-- <property name="current_session_context_class">thread</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">update</property>-->
<mapping resource="com/hibernate/model/student.hbm.xml"/>
</session-factory>
</hibernate-configuration>
student.hbm.xml代码
<hibernate-mapping package="com.hibernate.model">
<class name="student" table="student">
<id name="id" />
<property name="age"/>
<property name="name"/>
</class>
</hibernate-mapping>
抛出的错发代码
2012-3-25 2:55:49 org.hibernate.annotations.common.Version <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.1.Final}
2012-3-25 2:55:49 org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.1.1}
2012-3-25 2:55:49 org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
2012-3-25 2:55:49 org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
2012-3-25 2:55:49 org.hibernate.cfg.Configuration configure
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml
2012-3-25 2:55:49 org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml
2012-3-25 2:55:50 org.hibernate.cfg.Configuration addResource
INFO: HHH000221: Reading mappings from resource: com/hibernate/model/student.hbm.xml
2012-3-25 2:55:50 org.hibernate.internal.util.xml.ErrorLogger error
ERROR: HHH000196: Error parsing XML (2) : cvc-elt.1: Cannot find the declaration of element 'hibernate-mapping'.
2012-3-25 2:55:50 org.hibernate.internal.util.xml.ErrorLogger error
ERROR: HHH000196: Error parsing XML (2) : cvc-elt.1: Cannot find the declaration of element 'hibernate-mapping'.
Exception in thread "main" org.hibernate.InvalidMappingException: Unable to read XML
at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:106)
at org.hibernate.cfg.Configuration.add(Configuration.java:477)
at org.hibernate.cfg.Configuration.add(Configuration.java:473)
at org.hibernate.cfg.Configuration.add(Configuration.java:646)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:729)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:2105)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:2077)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2057)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2010)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1925)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1904)
at studentTest.main(studentTest.java:18)
Caused by: org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'hibernate-mapping'.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:131)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:384)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:318)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1887)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:685)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:400)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:626)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3095)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:921)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:76)
... 11 more
[解决办法]
student.hbm.xml贴上
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
试试！
[解决办法]
Exception in thread "main" org.hibernate.InvalidMappingException: Unable to read XML
不能读取XML。
检查一下你的配置文件和映射文件有没有写正确，最好能从源码里拷贝一份配置文件和映射文件的格式.
[解决办法]
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping package="com.pro.models" >
<class name="Admin" table="admin" lazy="false">
<id name="mid">
<generator class="native"></generator>
</id>
<property name="userid" type="java.lang.String" >
<column name="userid" length="50" />
</property>
<property name="password" type="java.lang.String">
<column name="password" length="50" />
</property>
<property name="code" type="java.lang.String">
<column name="code" length="10" />
</property>
<property name="permissions" type="java.lang.String">
<column name="permissions" length="50" />
</property>
</class>
</hibernate-mapping>
