Develop Reference

How to generate model code for "Single DB" using Hibernate Tools through Hibernate Reverse Engineering

I use the Hibernate Reverse Engineering through JBoss Tools > Hibernate Tools to generate Model Classes.
There, when I add the Hibernate Configuration and Run it / Rebuild It, it list all the DBs although I mention only one DB in the hibernate.cfg.xml's hibernate.connection.url.
eg : jdbc:mysql://localhost:3306/booksdb.
hibernate.cfg.xml
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration SYSTEM
"-//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.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/booksdb</property>
<property name="hibernate.connection.username">xxxx</property>
<property name="hibernate.connection.password">xxxx</property>
</session-factory>
</hibernate-configuration>
Then when I generate the entities code it scans all other Database tables also to generate the entity codes for all. Sometimes it impact by some duplicated tables in different DBs.
Question :
How to do this for single database mentioned in the hibernate.connection.url?
Hibernate Code Generation Configurations > Main
Hibernate Code Generation Configurations > Exporters
Hibernate version : 5.4
MySQL version Info
innodb_version:5.7.26
protocol_version:10
version:5.7.26-0ubuntu0.18.04.1
version_comment:(Ubuntu)
version_compile_machine:x86_64
version_compile_os:Linux

In this screen go to setup near reveng.xml. It will ask you to create a xml, from there you'll be able to exclude the databases you don't want.
<hibernate-reverse-engineering>
<table-filter match-name=".*" exclude="true" match-catalog="YOUR_DATABASE_NAME" />
</hibernate-reverse-engineering>

I'm getting XMLStreamException at [row,col]:[1,2]

I suddenly have started getting XMLStreamException in my project. Yesterday it worked just fine, today I made some minor changes and it's broken. I tried to rebase to previous versions, but nothing changed at all.
Here is my xml file:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.url">jdbc:postgresql://localhost:5433/logistica</property>
<property name="hibernate.connection.username">testUser</property>
<property name="hibernate.connection.password">pass</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQL9Dialect</property>
<mapping class="com.log.iei.logistica.data.entities.ClientEntity" />
<mapping class="com.log.iei.logistica.data.entities.ContractEntity" />
<mapping class="com.log.iei.logistica.data.entities.ContainerEntity" />
<mapping class="com.log.iei.logistica.data.entities.VehicleEntity" />
<mapping class="com.log.iei.logistica.data.entities.TransactionEntity" />
</session-factory>
</hibernate-configuration>
And exception:
org.hibernate.HibernateException: Error accessing stax stream
at org.hibernate.boot.cfgxml.internal.JaxbCfgProcessor.unmarshal(JaxbCfgProcessor.java:107)
at org.hibernate.boot.cfgxml.internal.JaxbCfgProcessor.unmarshal(JaxbCfgProcessor.java:65)
at org.hibernate.boot.cfgxml.internal.ConfigLoader.loadConfigXmlResource(ConfigLoader.java:57)
at org.hibernate.boot.registry.StandardServiceRegistryBuilder.configure(StandardServiceRegistryBuilder.java:165)
at org.hibernate.cfg.Configuration.configure(Configuration.java:258)
at org.hibernate.cfg.Configuration.configure(Configuration.java:244)
at com.log.iei.logistica.managers.HibernateSessionManager.getSessionFactory(HibernateSessionManager.java:18)
at com.log.iei.logistica.data.controllers.Services.GenericDao.getSession(GenericDao.java:78)
at com.log.iei.logistica.data.controllers.Services.GenericDao.findAll(GenericDao.java:58)
at com.log.iei.logistica.data.controllers.Services.VehicleService.findAll(VehicleService.java:50)
at com.log.iei.logistica.gui.cargo.CargoPage.init(CargoPage.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
.........
.......
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1,2]
Message: The markup declarations contained or pointed to by the document type declaration must be well-formed.
at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.next(XMLStreamReaderImpl.java:604)
at com.sun.xml.internal.stream.XMLEventReaderImpl.peek(XMLEventReaderImpl.java:276)
at org.hibernate.boot.cfgxml.internal.JaxbCfgProcessor.unmarshal(JaxbCfgProcessor.java:103)
... 36 more

I began having the same issue. I hadn't updated anything, but restarting tomcat failed with lots of new exceptions. I noticed the below file was updated today and wondered if it was the source (it is referenced in each of my entity mappings):
http://hibernate.org/dtd/hibernate-mapping-3.0.dtd
So I updated my mappings to use the DTD from here:"hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" - and that works. So it does appear to be caused by the Hibernate's updated DTD file.
I guess your options are:
figure out what hibernate wants in the updated dtd
use the dtd from another source like sourceforge
use the dtd from your hibernate jar like this: "classpath://org/hibernate/hibernate-mapping-3.0.dtd"

Netbeans 8.x + hibernate + postgreSQL : No tables found in reverse engineering

I use neatbeans with hibernate + postgreSQL.
In postgreSQL I have 1 table : "test" with 3 columns.
I created the hibernate.cfg.
<?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>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/test</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.connection.password">root</property>
</session-factory>
</hibernate-configuration>
Now I want to create the reverse engineering file for map my table, the problem is I haven't output (in table field).
In my libraries I have:
Hibernate 4.3.x
postgresql-9.3-1102.jdbc41
JDK 8
With NetBeans, when I go to Service area I can connect to my database, and see my tables with his values.
Maybe an idea, when I created the hibernate.cfg, I chose my new Driver -> Add postgresql-9.3-1102.jdbc41.jar and when I click on "find" Driver Class I have the error message: Driver class is missing. I don't know if that could be the problem.
Do you have any idea ?
Thanks for your help !

Configuring hibernate.cfg.xml file

I am new to Hibernate, so I have few dumb questions hope someone would be able to assist me. I have a query in regards to configuring hibernate file i.e. hibernate.cfg.xml file. Normally we configure it as below :
<?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>
<property name="hbm2ddl.auto">update</property>
<property name="dialect">org.hibernate.dialect.Oracle9Dialect</property>
<property name="connection.url">jdbc:oracle:thin:#localhost:1521:xe</property>
<property name="connection.username">system</property>
<property name="connection.password">oracle</property>
<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<mapping resource="employee.hbm.xml"/>
</session-factory>
</hibernate-configuration>
Where the considers relevant mapping files. Lets say I have another mapping file, call it company.hbm.xml file and have a one-to-many relationship with employee.hbm.xml file. So, as and when the number of mapping files increases we include them into tag.
Query : How is it different to include multiple mapping files with individual tag from having just a single mapping file with all the relevant mappings.
Appreciate your response

Because such separation is cleaner. Single file with whole configuration tends to grow up and to become a yet another huge, unmaintainable and unreadable XML file.
Please also note, that using annotations right inside your model classes seems to be the right way for you (just as #Shiju Babu stated).

Hibernate: Can't connect to MySQL database

I'm struggling to get my program to connect to a MySQL database with Hibernate.
I simply want to connect to it so i can usee Hibernate tools to reverse engineer a few tables in the database.
When i use MySQL Workbench to connect to the database from the same machine, it works.
Here's my hibernate.cfg.xml 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>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://www.soosthebasement.nl:3306/soos_thebasement</property>
<property name="hibernate.connection.username">removed</property>
<property name="hibernate.connection.password">removed</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
</session-factory>
</hibernate-configuration>
The password contains some weird chars, like >, which when creating the cfg file got parsed into >. Could that have something to do with it?

Turns out i used the wrong URL.
Even though the URL listed in the question points to the correct website, it doesn't actually point to the database host.