初次接触Hibernate，老是出现 Unable to read XML的错误

byte_z 2013-04-27 08:52:20
hibernate.cfg.xml如下：
<?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">

<!-- Generated by MyEclipse Hibernate Tools.                   -->

<hibernate-configuration>



	<session-factory>

		<property name="dialect">

			org.hibernate.dialect.MySQLDialect

		</property>

		<property name="connection.url">

			jdbc:mysql://localhost:3306/demo

		</property>

		<property name="connection.username">root</property>

		<property name="connection.password">123456</property>

		<property name="connection.driver_class">

			com.mysql.jdbc.Driver

		</property>

		<property name="myeclipse.connection.profile">

			testDriver

		</property>

		<mapping resource="model/Xsb.hbm.xml" />



	</session-factory>



</hibernate-configuration>


Xsb.hbm.xml文件如下：
<?xml version="1.0" encoding="utf-8"?>

<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd ">

<!-- 

    Mapping file autogenerated by MyEclipse Persistence Tools

-->

<hibernate-mapping>

    <class name="model.Xsb" table="XSB" >

        <id name="xh" type="java.lang.String">

            <column name="XH" length="10" />

            <generator class="assigned" />

        </id>

        <property name="xsm" type="java.lang.String">

            <column name="XSM" length="20" not-null="true" />

        </property>

    </class>

</hibernate-mapping>

这些配置文件了，POJO类了什么的都是MyEclipse 10.6自动生成的…………



错误如下：
2013-4-27 20:41:13 org.hibernate.annotations.common.Version <clinit>

INFO: HCANN000001: Hibernate Commons Annotations {4.0.1.Final}

2013-4-27 20:41:13 org.hibernate.Version logVersion

INFO: HHH000412: Hibernate Core {4.1.4.Final}

2013-4-27 20:41:13 org.hibernate.cfg.Environment <clinit>

INFO: HHH000206: hibernate.properties not found

2013-4-27 20:41:13 org.hibernate.cfg.Environment buildBytecodeProvider

INFO: HHH000021: Bytecode provider name : javassist

2013-4-27 20:41:13 org.hibernate.cfg.Configuration configure

INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml

2013-4-27 20:41:13 org.hibernate.cfg.Configuration getConfigurationInputStream

INFO: HHH000040: Configuration resource: /hibernate.cfg.xml

2013-4-27 20:41:13 org.hibernate.cfg.Configuration addResource

INFO: HHH000221: Reading mappings from resource: model/Xsb.hbm.xml

%%%% Error Creating SessionFactory %%%%

org.hibernate.InvalidMappingException: Unable to read XML

	at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:109)

	at org.hibernate.cfg.Configuration.add(Configuration.java:478)

	at org.hibernate.cfg.Configuration.add(Configuration.java:474)

	at org.hibernate.cfg.Configuration.add(Configuration.java:647)

	at org.hibernate.cfg.Configuration.addResource(Configuration.java:730)

	at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:2109)

	at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:2081)

	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2061)

	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2014)

	at org.hibernate.cfg.Configuration.configure(Configuration.java:1929)

	at session.HibernateSessionFactory.<clinit>(HibernateSessionFactory.java:31)

	at test.Tester.main(Tester.java:11)

Caused by: org.dom4j.DocumentException: http://www.jboss.org/dtd/hibernate/hibernate-mapping-3.0.dtd%20 Nested exception: http://www.jboss.org/dtd/hibernate/hibernate-mapping-3.0.dtd%20

	at org.dom4j.io.SAXReader.read(SAXReader.java:484)

	at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:78)

	... 11 more

2013-4-27 20:41:14 org.hibernate.cfg.Configuration configure

INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml

2013-4-27 20:41:14 org.hibernate.cfg.Configuration getConfigurationInputStream

INFO: HHH000040: Configuration resource: /hibernate.cfg.xml

2013-4-27 20:41:14 org.hibernate.cfg.Configuration addResource

INFO: HHH000221: Reading mappings from resource: model/Xsb.hbm.xml

%%%% Error Creating SessionFactory %%%%

org.hibernate.InvalidMappingException: Unable to read XML

	at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:109)

	at org.hibernate.cfg.Configuration.add(Configuration.java:478)

	at org.hibernate.cfg.Configuration.add(Configuration.java:474)

	at org.hibernate.cfg.Configuration.add(Configuration.java:647)

	at org.hibernate.cfg.Configuration.addResource(Configuration.java:730)

	at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:2109)

	at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:2081)

	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2061)

	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2014)

	at org.hibernate.cfg.Configuration.configure(Configuration.java:1929)

	at session.HibernateSessionFactory.rebuildSessionFactory(HibernateSessionFactory.java:70)

	at session.HibernateSessionFactory.getSession(HibernateSessionFactory.java:54)

	at test.Tester.main(Tester.java:11)

Caused by: org.dom4j.DocumentException: http://www.jboss.org/dtd/hibernate/hibernate-mapping-3.0.dtd%20 Nested exception: http://www.jboss.org/dtd/hibernate/hibernate-mapping-3.0.dtd%20

	at org.dom4j.io.SAXReader.read(SAXReader.java:484)

	at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:78)

	... 12 more

Exception in thread "main" java.lang.NullPointerException

	at test.Tester.main(Tester.java:13)


HibernateSessionFactory如下：
package session;



import org.hibernate.HibernateException;

import org.hibernate.Session;

import org.hibernate.cfg.Configuration;



/**

 * Configures and provides access to Hibernate sessions, tied to the

 * current thread of execution.  Follows the Thread Local Session

 * pattern, see {@link http://hibernate.org/42.html }.

 */

@SuppressWarnings("deprecation")

public class HibernateSessionFactory {



    /** 

     * Location of hibernate.cfg.xml file.

     * Location should be on the classpath as Hibernate uses  

     * #resourceAsStream style lookup for its configuration file. 

     * The default classpath location of the hibernate config file is 

     * in the default package. Use #setConfigFile() to update 

     * the location of the configuration file for the current session.   

     */

    private static String CONFIG_FILE_LOCATION = "/hibernate.cfg.xml";

	private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();

    private  static Configuration configuration = new Configuration();    

    private static org.hibernate.SessionFactory sessionFactory;

    private static String configFile = CONFIG_FILE_LOCATION;



	static {

    	try {

			configuration.configure(configFile);

			sessionFactory = configuration.buildSessionFactory();

		} catch (Exception e) {

			System.err

					.println("%%%% Error Creating SessionFactory %%%%");

			e.printStackTrace();

		}

    }

    private HibernateSessionFactory() {

    }

	

	/**

     * Returns the ThreadLocal Session instance.  Lazy initialize

     * the <code>SessionFactory</code> if needed.

     *

     *  @return Session

     *  @throws HibernateException

     */

    public static Session getSession() throws HibernateException {

        Session session = (Session) threadLocal.get();



		if (session == null || !session.isOpen()) {

			if (sessionFactory == null) {

				rebuildSessionFactory();

			}

			session = (sessionFactory != null) ? sessionFactory.openSession()

					: null;

			threadLocal.set(session);

		}



        return session;

    }



	/**

     *  Rebuild hibernate session factory

     *

     */

	public static void rebuildSessionFactory() {

		try {

			configuration.configure(configFile);			sessionFactory = configuration.buildSessionFactory();

		} catch (Exception e) {

			System.err

					.println("%%%% Error Creating SessionFactory %%%%");

			e.printStackTrace();

		}

	}



	/**

     *  Close the single hibernate session instance.

     *

     *  @throws HibernateException

     */

    public static void closeSession() throws HibernateException {

        Session session = (Session) threadLocal.get();

        threadLocal.set(null);



        if (session != null) {

            session.close();

        }

    }



	/**

     *  return session factory

     *

     */

	public static org.hibernate.SessionFactory getSessionFactory() {

		return sessionFactory;

	}



	/**

     *  return session factory

     *

     *	session factory will be rebuilded in the next call

     */

	public static void setConfigFile(String configFile) {

		HibernateSessionFactory.configFile = configFile;

		sessionFactory = null;

	}



	/**

     *  return hibernate configuration

     *

     */

	public static Configuration getConfiguration() {

		return configuration;

	}



}
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1636 13 打赏 收藏 转发到动态 举报
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查看余e 2014-05-15
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三楼 大神 。。
computer_wangtaotao 2014-05-10
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我也遇到这个问题了,真的是一个空格！
OD9999 2014-03-30
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3楼正解！找个半天居然是因为一个空格！！！？？？？
sxax 2014-01-10
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引用 3 楼 fangmingshijie 的回复:
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd ">//看到dtd后面的空格没有？解析不了
之前我一直都没关心过这个后面带空格，学习下~ 建议LZ可以尝试修改下
loveunittesting 2014-01-10
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hibernate-mapping-3.0.dtd 后面的空格要去掉，你看日志，不是有个20%吗，就是空格
鼠标键盘 2014-01-09
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3楼正解啊。。不知道为什么hibernate4+的用Myeclipse生成会多有空格
fw347969680 2014-01-09
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引用 7 楼 u010816188 的回复:
3楼正解啊。。不知道为什么hibernate4+的用Myeclipse生成会多有空格
正解，XML的格式问题。
vigiles 2013-11-22
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请问楼主这个问题解决了吗
xianwangkai 2013-05-03
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你先弄个空的hibernate配置文件，最好从hibernate的官网下载的demo中去，然后试一试，如果好着，然后在修改里面内容为你的xml内容。 怀疑还是你的xml中有些发容易发现的错误！
cjbedu2012 2013-05-03
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<property name="myeclipse.connection.profile"> testDriver</property> 一般不加为好
花谢尊前不敢香 2013-04-28
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"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd ">//看到dtd后面的空格没有？解析不了
xian_hf 2013-04-27
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是不是缺少读取xml的jar包？ dtd文件是否在本地？
byte_z 2013-04-27
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目录结构
PS：文件包也都是MyEclipse自己添加的。
org.hibernate.InvalidMappingException: Unable to read XML 错误
当发生org.hibernate.InvalidMappingException: Unable to read XML at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:109) at org.hibernate.cfg.Configuration.add(Confi
hibernate体验之Unable to read XML
        初次尝试记录coding中出现的问题写的不好,请大家多多指教 今天试着自己用hibernate对数据库进行curd操作,在配置了hibernate.cfg.xml以及对pojo和数据库建立了映射关系后,自己编写一段代码运行来创建一个表,在运行中出现下面的问题  刚开始一直在纠结Unable to read XML,以为是在编写的读取hibernate.cfg.xml的代码块...
错误org.hibernate.InvalidMappingException: Unable to read XML解决方法
hbm.xml中： "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd "> 在dtd后面有个空格，导致无法解析，将此空格去掉j
org.hibernate.InvalidMappingException: Unable to read XML
Exception in thread “main” org.hibernate.InvalidMappingException: Unable to read XML at org.hibernate.util.xml.MappingReader.readMappingDocument(MappingReader.java:101) at org.hibernate.cfg....
org.hibernate.InvalidMappingException: Unable to read XML 错误分析
出现这类错误的原因一般是XXX.hbm.xml配置文件出了问题 问题大致分为2中情况 1. "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd ">     Mapping file autogenerated by MyEclipse Persistence Tools --> 这部分代码中由于COPY的时候
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