Java 休眠无效配置异常
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hibernate invalid configuration exception
提问by Qadeer Hussain
I am new to Hibernate. My Hibernateconfiguration file is as follows:
我是新手Hibernate。我的Hibernate配置文件如下：
<?xml version='1.0' encoding='utf-8'?>
<hibernate-configuration
xmlns="http://www.hibernate.org/xsd/hibernate-configuration"
xsi:schemaLocation="http://www.hibernate.org/xsd/hibernate-configuration hibernate-configuration-4.0.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">org.gjt.mm.mysql.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/hibernate</property>
<property name="connection.username">root</property>
<property name="connection.password">QADEER</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">create</property>
<mapping class="org.test.Person"/>
</session-factory>
</hibernate-configuration>
I have the following Person.java class:
我有以下 Person.java 类：
package org.test;
import javax.persistence.Entity;
import javax.persistence.Id;
@Entity
public class Person
{
@Id
private int id;
private String name;
public int getId() {
return id;
}
public String getName() {
return name;
}
public void setId(int id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
}
Main class:
主要类：
package org.test;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class Main
{
public static void main(String args[])
{
Person obj=new Person();
obj.setId(1);
obj.setName("qadeer");
@SuppressWarnings("deprecation")
SessionFactory buildSessionFactory = new Configuration().configure().buildSessionFactory();
Session session = buildSessionFactory.openSession();
session.beginTransaction();
session.save(obj);
session.getTransaction().commit();
}
}
when i run the code it give me following excwption.....
当我运行代码时，它给了我以下 excwption .....
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml Sep 13, 2013 10:34:32 PM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml
Exception in thread "main" org.hibernate.MappingException: invalid configuration
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2070)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1987)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1966)
at org.test.Main.main(Main.java:15)
Caused by: org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 25; Document is invalid: no grammar found.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapp er.java:198)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:134)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:437)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:325)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:226)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:602)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3065)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:881)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:607)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:116)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:489)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:835)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:123)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1210)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:568)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2067)
... 3 more
采纳答案by Paulo Fidalgo
With Hibernate 4.x you should use the same DTD as 3.x:
对于 Hibernate 4.x，您应该使用与 3.x 相同的 DTD：
<?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>
as you can see by this bug report, where the deprecation warning was removed. Also the tutorials for 4.2 version use this, as you can see here.
回答by Sajan Chandran
The exception clearly says Caused by: org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 25; Document is invalid: no grammar found. atwhich means that there is no baseline (define structure of the xml)to check your xmltags against.
异常清楚地表明Caused by: org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 25; Document is invalid: no grammar found. at这意味着没有baseline (define structure of the xml)检查您的xml标签。
You need to add the hibernate DOCTYPE, which is
您需要添加 hibernate DOCTYPE，即
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd" >
Also check is your xmlwell formed, look for any unclosed tags, etc...
还要检查你的xml格式是否正确，寻找任何未关闭的标签等......
回答by Saravanan Sankar
This is related to hibernate.cfg.xml. For hibernate 4.3.0 Final also should use dtd as shown below to resolve this error.
这与hibernate.cfg.xml. 对于 hibernate 4.3.0 Final 也应该使用 dtd 来解决这个错误，如下所示。
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd" >
回答by aniket kanade
It is working after adding below
添加下面后它正在工作
<?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">
