MappingException with hibernate.cfg.xml - java

I have a maven project that I am using with hibernate-core 4.2.3.Final. I have followed the advice provided here:
Where to place hibernate config?
Hibernate Tutorial - Where to put Mapping File?
and the config file in src/main/resources looks like this:
<?xml version = "1.0" encoding = "utf-8"?>
<!DOCTYPE hibernate-configuration SYSTEM
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.url">jdbc:mysql://localhost:3306/justHibernate</property>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.username">root</property>
<property name="connection.password">12345</property>
<property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>
<mapping resource="com/mycompany/app/model/Movie.hbm.xml" />
</session-factory>
</hibernate-configuration>
while the mapping file is within the package com.mycompany.app.model alongside the Movie class:
<?xml version = "1.0" encoding = "utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="com.mycompany.app.model.Movie" table="Movies">
<id name="id" column="id">
<generator class="native"/>
</id>
<property name="title" column="title"/>
<property name="director" column="director"/>
<property name="synopsis" column="synopsis"/>
</class>
</hibernate-mapping>
Exception
The configuration cannot find the mapping file.
INFO: HHH000221: Reading mappings from resource: com/mycompany/app/model/Movie.hbm.xml
Exception in thread "main" org.hibernate.MappingNotFoundException: resource: com/mycompany/app/model/Movie.hbm.xml not found
at org.hibernate.cfg.Configuration.addResource(Configuration.java:738)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:2167)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:2139)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2119)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2072)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1987)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1966)
at com.mycompany.app.MovieManager.initSessionFactory(MovieManager.java:22)
at com.mycompany.app.MovieManager.<init>(MovieManager.java:17)
at com.mycompany.app.App.main(App.java:27)

Place Movie.hbm.xml under src/main/resources and change path in your config file as follows,
<mapping resource="Movie.hbm.xml" />
Hope this helps.

Related

Hibernate invalid configuration mapping

Good Morning to everyone!
I´m trying to use Hibernate to read an MSAccess database in Java using Eclipse, but it gives me a MappingException
here is my hibernateaccess.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping SYSTEM
"classpath://org/hibernate/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<session-factory>
<property name='connection.driver_class'>net.ucanaccess.jdbc.UcanaccessDriver</property>
<property name='connection.username'></property>
<property name='connection.password'></property>
<!-- JDBC connection pool (use the built-in) -->
<property name='connection.pool_size'>1000</property>
<property name="hibernate.c3p0.min_size">2</property>
<property name="hibernate.c3p0.max_size">600000</property>
<!-- SQL dialect -->
<property name='dialect'>dialect.MSAccessDialect</property>
<!-- Echo all executed SQL to stdout -->
<property name='show_sql'>true</property>
<!-- Mapping files -->
<mapping class="TransporteAccess.hbm.xml" />
</session-factory>
</hibernate-mapping>
and the TransporteAccess.hbm.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping SYSTEM
"classpath://org/hibernate/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="model.Transporte" table="Transportes">
<property name="transporte" column="TRANSPORTES" type="string"></property>
</class>
</hibernate-mapping>
Which I´m doing wrong???
Thanks a lot!
It is mandatory to have Primary Key in Hibernate, refer
Add Primary key as well,
<id name="id" type="int" column="id">
<generator class="native"/>
</id>
apart from this the hibernateaccess.xml contains some irrelevant tags
Update top lines in hibernateaccess.xml with
<?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>
& change
<mapping class="TransporteAccess.hbm.xml" />
to
<mapping resource="TransporteAccess.hbm.xml" />

Invalid Mapping Exception in hibernate.hbm.xml

I am posting my hbm file with the cfg file along with my error log. I found my questions based on similar problems are tried out their solution too but still my error is not fading away.
log
Initial SessionFactory creation failed.org.hibernate.InvalidMappingException: Could not parse mapping document from resource net/viralpatel/hibernate/Employee.hbm.xml
Exception in thread "main" java.lang.ExceptionInInitializerError
at net.viralpatel.hibernate.HibernateUtil.buildSessionFactory(HibernateUtil.java:18)
at net.viralpatel.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:8)
at net.viralpatel.hibernate.Main.main(Main.java:13)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from resource net/viralpatel/hibernate/Employee.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:569)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1584)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1552)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1531)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1505)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1425)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1411)
at net.viralpatel.hibernate.HibernateUtil.buildSessionFactory(HibernateUtil.java:14)
... 2 more
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:508)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:566)
... 9 more
Caused by: org.dom4j.DocumentException: Error on line 9 of document : The element type "generator" must be terminated by the matching end-tag "</generator>". Nested exception: The element type "generator" must be terminated by the matching end-tag "</generator>".
at org.dom4j.io.SAXReader.read(SAXReader.java:482)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:499)
... 10 more
Employee.hbm.xml
<?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">
<hibernate-mapping>
<class name="Employee" table="EMPLOYEE" >
<id name="employeeId" column="EMPLOYEE_ID">
<generator class="native">
</id>
<one-to-one name="employeeDetail" class="net.viralpatel.hibernate.EmployeeDetail"
cascade="save-update"></one-to-one>
<property name="firstname" column="firstname" />
<property name="lastname" column="lastname" />
<property name="birthDate" type="date" column="birth_date" />
<property name="cellphone" column="cell_phone" />
</class>
hibernate.cfg.xml
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/hibernate</property>
<property name="connection.username">root</property>
<property name="connection.password">tcs#1234</property>
<property name="connection.pool_size">1</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="current_session_context_class">thread</property>
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">update</property>
<mapping resource="net/viralpatel/hibernate/EmployeeDetail.hbm.xml"/>
<mapping resource="net/viralpatel/hibernate/Employee.hbm.xml"/>
</session-factory>
In your Employee.hbm.xml you're not closing the generator tag.
Replace
<generator class="native">
by this
<generator class="native"/>
By looking at stack trace, you have not end the generator tag properly.
Please change your employee.hbm.xml file to end the <generator> element properly.
For Ex: It should be <generator class="native"/>

Could not parse mapping document from resource Books.hbm.xml

Why am i getting hibernate.invalidmappingexception when i try to save an object in database with hibernate..
books.hbm.xml (Inside the resource folder)
<?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">
<hibernate-mapping>
<class name="Books" table="books">
<id name="id">
<generator class="increment"></generator>
</id>
<property name="name"></property>
<property name="author"></property>
<property name="count"></property>
<property name="description"></property>
</class>
</hibernate-mapping>
Hibernate.cfg.xml:
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect"> org.hibernate.dialect.MySQLDialect </property>
<property name="hibernate.connection.driver_class"> com.mysql.jdbc.Driver </property>
<property name="hibernate.connection.url"> jdbc:mysql://localhost/cybage </property>
<property name="hibernate.connection.username"> root </property>
<property name="hibernate.connection.password"> yoga </property>
<mapping resource="Books.hbm.xml"/>
</session-factory>
</hibernate-configuration>
And My project structure is:
I have placed the mapping files BOOKS.hbm.xml in resource folder and the Hibernate.cfg.xml in the META/classes folder
You need to specify a full class name with a package in the books.hbm.xml
<class name="pack.Books" table="books">
....
</class>
You need to have the resources folder in the main folder to have all files in the WEB-INF/classes, after building a war. WEB-INF/classes will be in the class path by default.
You have hibernate.cfg.xml and user.hbm.xml in the classes folder — move all xml from the classes to the resources.
Try to replace this:
<mapping resource="Books.hbm.xml"/>
With:
<mapping resource="resources/Books.hbm.xml"/>
Adding the right path.
You need to provide correct mapping path of hbm file in Hibernate.cfg.xml
so Just replace to
<mapping resource="resources/Books.hbm.xml"/>
Because your hbm file is located in resources folder so you need to provide same path.

Need help to run a hibernate project

I am very new to hibernate, and I am struggling for hours to make a project run. I didn't write the code, I just want to start it. I don't even know from where to begin explainin. First I will post a picture with the structure of the project
I didn't import the project, I created a new one and copied all the code. I have included the jars for hibernate. I am using postgresql, the initial project was using sqlserver. I have modified the hibernate.cfg.xml and Book.hbm.xml files, I think I will post these files here, but I get a bunch of errors:
**strong text**Exception in thread "AWT-EventQueue-0" org.hibernate.HibernateException: Could not parse configuration: /hibernate.cfg.xml
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1491)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1425)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1411)
at service.BookService.<init>(BookService.java:16)
at controller.BookManager.<init>(BookManager.java:18)
at views.Library.<init>(Library.java:24)
at Start.createAndShowGUI(Start.java:15)
at Start$1.run(Start.java:29)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744)
at java.awt.EventQueue.access$400(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:697)
at java.awt.EventQueue$3.run(EventQueue.java:691)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:714)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: org.dom4j.DocumentException: Connection reset Nested exception: Connection reset
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1481)
... 21 more
Initial hibernate.cfg.xml file:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration SYSTEM
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</property>
<property name="hibernate.connection.driver_class">
com.mysql.jdbc.Driver
</property>
<!-- Assume test is the database name -->
<property name="hibernate.connection.url">
jdbc:mysql://localhost/lab1_aop
</property>
<property name="hibernate.connection.username">
root
</property>
<property name="hibernate.connection.password">
root
</property>
<!-- List of XML mapping files -->
<mapping resource="Book.hbm.xml"/>
</session-factory>
</hibernate-configuration>
My hibernate.cfg.xml file:
<?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>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.connection.password">passw</property>
<property name="hibernate.connection.url">jdbc:postgresql://localhost:5434/lab1_aop</property>
<mapping resource="Book.hbm.xml"/>
</session-factory>
</hibernate-configuration>
In the Book.hbm.xml file I didn't change anything:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="model.Book" table="books">
<meta attribute="class-description">
This class contains a book details.
</meta>
<id name="id" type="int" column="id">
<generator class="native"/>
</id>
<property name="name" column="name" type="string"/>
<property name="borrowed" column="borrowed" type="boolean"/>
</class>
</hibernate-mapping>
Can anyone help me please? I can provide more of the code if nedded.
Thank you in advance!
Try replacing:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration SYSTEM
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
with
<?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">
in hibernate.cfg.xml

How can I stop auto Scheme creation?

If it is duplicate, my apology. I could not find an answer for my question.
I just start Hibernate. I have an issue is every time the program automatically delete the old shceme and creates new when it is running. For example, If I want to add records into database, I could not do it because the scheme will be recreate, so the histories will be deleted.
Here is my hbm.xml mapping file:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 22-Oct-2013 1:39:31 PM by Hibernate Tools 3.4.0.CR1 -->
<hibernate-mapping>
<class name="net.ys.hibernate.Equip" table="EQUIP">
<id name="id" type="int">
<column name="ID" />
<generator class="native" />
</id>
<property name="dis" type="java.lang.String" column="dis" />
<property name="ref" type="java.lang.String" column="ref" />
<property name="type" type="java.lang.String" column="type" />
</class>
</hibernate-mapping>
hibernate.cfg.xml configuration file.
<?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>
<!-- hibernate dialect -->
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.password">pw</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/explorer_DB?useUnicode=true&characterEncoding=GBK</property>
<property name="hibernate.connection.username">username</property>
<property name="hibernate.default_schema">explorer_DB</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Automatic schema creation(begin) -->
<property name="hibernate.hbm2ddl.auto">create</property>
<!-- Simple memory-only cache -->
<property name="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- mapping files with external dependencies -->
<mapping resource="net/ys/hibernate/Equip.hbm.xml"/>
</session-factory>
</hibernate-configuration>
And addEquip method:
public Integer addEquip(String dis, String ref, String type){
Session session = sessionFactory.openSession();
currentSession = sessionFactory.getCurrentSession();
Transaction tx = null;
Integer equipID = null;
try {
tx = currentSession.beginTransaction(); //start a transaction
Equip equip = new Equip(dis,ref,type);
equipID = (Integer)currentSession.save(equip);
tx.commit();
} catch (HibernateException e) {
if(tx!=null) tx.rollback();
e.printStackTrace();
} finally {
session.close();
}
return equipID;
}
}
could someone help me to solve this issue? I just don't understand how to use getCurrentSession(), probably I am wrong in this point. Could you explain how hibernate works when we call getCurrentSession() for me? I really appreciate it.
Thank you so much
Change this property in your hibernate.cfg.xml file
current configuration
<property name="hibernate.hbm2ddl.auto">create</property>
to
<property name="hibernate.hbm2ddl.auto">none</property>
if no change required in database use.
<property name="hibernate.hbm2ddl.auto">validate</property>
More on this please refer this link
Hibernate hbm2ddl.auto possible values and what they do?

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