Here is the config file for MySQL:
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">org.gjt.mm.mysql.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost/test</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">zgy01</property>
<property name="hibernate.connection.pool_size">100</property>
<property name="show_sql">false</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Mapping files -->
<mapping resource="model.hbm.xml"/>
</session-factory>
</hibernate-configuration>
What to specify for SQL Server 2005? I did it like this:
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">org.gjt.mm.mysql.Driver</property>
<property name="hibernate.connection.url">com.microsoft.sqlserver.jdbc.SQLServerDriver</property>
<property name="hibernate.connection.username">sa</property>
<property name="hibernate.connection.password">lal</property>
<property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
<property name="hibernate.connection.pool_size">100</property>
<property name="show_sql">false</property>
<!-- Mapping files -->
<mapping resource="model.hbm.xml"/>
</session-factory>
</hibernate-configuration>
My question more precisely is how to specify the database that I have to connect to?
In MySQL I used to do like this:
<property name="hibernate.connection.url">jdbc:mysql://localhost/test</property>
Properties that are database specific are:
hibernate.connection.driver_class: JDBC driver class
hibernate.connection.url: JDBC URL
hibernate.connection.username: database user
hibernate.connection.password: database password
hibernate.dialect: The class name of a Hibernate org.hibernate.dialect.Dialect which allows Hibernate to generate SQL optimized for a particular relational database.
To change the database, you must:
Provide an appropriate JDBC driver for the database on the class path,
Change the JDBC properties (driver, url, user, password)
Change the Dialect used by Hibernate to talk to the database
There are two drivers to connect to SQL Server; the open source jTDS and the Microsoft one. The driver class and the JDBC URL depend on which one you use.
With the jTDS driver
The driver class name is net.sourceforge.jtds.jdbc.Driver.
The URL format for sqlserver is:
jdbc:jtds:sqlserver://<server>[:<port>][/<database>][;<property>=<value>[;...]]
So the Hibernate configuration would look like (note that you can skip the hibernate. prefix in the properties):
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">net.sourceforge.jtds.jdbc.Driver</property>
<property name="connection.url">jdbc:jtds:sqlserver://<server>[:<port>][/<database>]</property>
<property name="connection.username">sa</property>
<property name="connection.password">lal</property>
<property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
...
</session-factory>
</hibernate-configuration>
With Microsoft SQL Server JDBC 3.0:
The driver class name is com.microsoft.sqlserver.jdbc.SQLServerDriver.
The URL format is:
jdbc:sqlserver://[serverName[\instanceName][:portNumber]][;property=value[;property=value]]
So the Hibernate configuration would look like:
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property>
<property name="connection.url">jdbc:sqlserver://[serverName[\instanceName][:portNumber]];databaseName=<databaseName></property>
<property name="connection.username">sa</property>
<property name="connection.password">lal</property>
<property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
...
</session-factory>
</hibernate-configuration>
References
Hibernate Core Reference Documentation
3.3. JDBC connections
3.4. Optional configuration properties
jTDS Documentation
Microsoft SQL Server JDBC Driver 3.0 Documentation
Microsoft SQL Server JDBC Driver 2.0
Support Matrix for Microsoft SQL Server JDBC Driver
The connection URL should look like this for SQL Server:
jdbc:sqlserver://serverName[\instanceName][:port][;databaseName=your_db_name]
Examples:
jdbc:sqlserver://localhost
jdbc:sqlserver://127.0.0.1\INGESQL:1433;databaseName=datatest
...
We also need to mention default schema for SQSERVER: dbo
<property name="hibernate.default_schema">dbo</property>
Tested with hibernate 4
Don't forget to enable tcp/ip connections in SQL SERVER Configuration tools
Finally this is for Hibernate 5 in Tomcat.
Compiled all the answers from the above and added my tips which works like a charm for Hibernate 5 and SQL Server 2014.
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">
org.hibernate.dialect.SQLServerDialect
</property>
<property name="hibernate.connection.driver_class">
com.microsoft.sqlserver.jdbc.SQLServerDriver
</property>
<property name="hibernate.connection.url">
jdbc:sqlserver://localhost\ServerInstanceOrServerName:1433;databaseName=DATABASE_NAME
</property>
<property name="hibernate.default_schema">theSchemaNameUsuallydbo</property>
<property name="hibernate.connection.username">
YourUsername
</property>
<property name="hibernate.connection.password">
YourPasswordForMSSQL
</property>
Keep the jar files under web-inf lib incase you included jar and it is not able to identify .
It worked in my case where everything was ok but it was not able to load the driver class.
Related
In my application build on Hibernate 5.2.11 there are many hibernate configuration file with username, password and connection url.
I would like to encrypt that data.
My configuration file is like this:
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="connection.url">jdbc:oracle:localhos</property>
<property name="connection.username">username</property>
<property name="connection.password">passowrd123</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">2</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.Oracle12cDialect</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">false</property>
</session-factory>
</hibernate-configuration>
Any suggestion?
Use a property placeholder then add your database config to a properties file on the server:
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location">
<value>file:${configDir}/database.properties</value>
</property>
</bean>
Then
<property name="connection.url">${url}</property>
<property name="connection.username">${username}</property>
<property name="connection.password">${passowrd}</property>
Then your database.properties which is securely on the server will be
url=jdbc:oracle:localhost
usuername=username
password=passowrd123
Then when you start your java app add a system parameter to define the configDir location, for example:
.... -DconfigDir=/opt/config
See examples here
Generally - encrypting/hiding anything what resides on the client's side (workstation/mobile/..) you can consider more like obfuscation or encoding.
In theory - you may set the Hibernate properties programatically (see Setting properties programmatically in Hibernate) reading your data from an encrypted file.
The problem is - where do you put your encryption keys? The keys has to be available to the application anyway somewhere.
Need some clarification and helps. Especially appreciate describing general concepts or link where they are described.
So, on the hibernate website I have read the next one:
For use inside an application server, you should almost always
configure Hibernate to obtain connections from an application server
javax.sql.Datasource registered in JNDI. You will need to set at least
one of the following properties:
And I have a few question because at the moment I am really confused about all of that stuff with DataSource, DataDriver, Tomcat and Hibernate in general.
Does configuring Datasource and binding SessionFactory to the JNDI
is the same process?
If no, for what we use DataSource and for why we need to bind SessionFactory to JNDI (in general)?
Am I understood right? If we configure DataSource in hibernate.cfg.xml file we don't need to configure it in {tomcat}/conf/server.xml or {tomcat}/conf/context.xml?
What is hibernate.jndi.url? Does it is the same as hibernate.connection.url?
What is hibernate.connection.datasource? In docs I read that it is "datasource JNDI name", so if I understood right it can be any name?
From Hibernate docs I read that setting at least one of the properties hibernate.connection.datasource, hibernate.jndi.url, hibernate.jndi.class, hibernate.connection.username, hibernate.connection.password makes my app use javax.sql.Datasource registered in JNDI. So does the next conf already configured to use DataSource?
How to check that DataSource used and configured fine?
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.show_sql">true</property>
<property name="hibernate.use_sql_comments">true</property>
<property name="hibernate.format_sql">true</property>
<property name="hibernate.generate_statistics">true</property>
<!--http://stackoverflow.com/questions/2067526/hibernate-connection-pool-->
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<!--For use inside an application server, you should almost always configure Hibernate to obtain connections from an application server javax.sql.Datasource registered in JNDI. You will need to set at least one of the following properties:-->
<!--hibernate.connection.datasource,hibernate.jndi.url,hibernate.jndi.class,hibernate.connection.username,hibernate.connection.password-->
<!--Datasource config-->
<property name="hibernate.connection.datasource">jdbc:mysql://localhost/easywordweb</property>
<!--<property name="hibernate.jndi.url">??????? what is it</property>-->
<!--/Datasource config-->
<!--*****************************************************************-->
<!--C3P0 config-->
<!--Hibernate will obtain and pool connections using java.sql.DriverManager if you set the 5 following properties -->
<!--hibernate.connection.driver_class,hibernate.connection.url,hibernate.connection.username,hibernate.connection.password,hibernate.connection.pool_size-->
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost/easywordweb</property>
<property name="hibernate.connection.username">username</property>
<property name="hibernate.connection.password">password</property>
<!--We can use a third party pool for best performance and stability, for example c3p0. Just replace the hibernate.connection.pool_size property with connection pool specific settings. This will turn off Hibernate's internal pool. For example, you might like to use c3p0. -->
<!--<property name="hibernate.connection.pool_size">140</property>-->
<property name="hibernate.c3p0.max_size">140</property>
<property name="hibernate.c3p0.min_size">5</property>
<property name="hibernate.c3p0.acquire_increment">5</property>
<!--max to cache-->
<property name="hibernate.c3p0.max_statements">50</property>
<!--The seconds a Connection can remain pooled but unused before being discarded. Zero means idle connections never expire. Hibernate default: 0-->
<property name="hibernate.c3p0.timeout">21600</property>
<!--for test, change futher-->
<property name="hibernate.c3p0.preferredTestQuery">SELECT 1;</property>
<!--at every connection checkin to verify that the connection is valid-->
<property name="hibernate.c3p0.testConnectionOnCheckout">true</property>
<!--at every connection checkout to verify that the connection is valid-->
<property name="hibernate.c3p0.testConnectionOnCheckin">true</property>
<!--/for test, change futher-->
<property name="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property>
<!--/C3P0 config-->
<!--*****************************************************************-->
<property name="hibernate.c3p0.validate">true</property>
<!--c3p0 will test all idle, pooled but unchecked-out connections, every this number of seconds-->
<property name="hibernate.c3p0.idle_test_period">21000</property>
<property name="hibernate.jdbc.batch_size">20</property>
<!--Number rows to be returned if no setted-->
<property name="hibernate.jdbc.fetch_size">20</property>
<property name="hibernate.jdbc.use_get_generated_keys">true</property>
<property name="hibernate.temp.use_jdbc_metadata_defaults">false</property>
<!--FIXING: Table "...".hibernate_sequence table not found.-->
<property name="hibernate.id.new_generator_mappings">false</property>
</session-factory>
</hibernate-configuration>
Thank's everyone in advance.
In the config you have posted you are initializing the connection pool within your application.
An alternative is to delegate the creation of the database pool to your app/web server and expose it as a JNDI resource. Your application need then only specify the name of the JNDI datasource to obtain a connection.
Doing this in Tomcat is documented here:
https://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html
Your hibernate.cfg.xml then looks like:
<?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.show_sql">true</property>
<property name="hibernate.use_sql_comments">true</property>
<property name="hibernate.format_sql">true</property>
<property name="hibernate.generate_statistics">true</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- The Server configured JNDI datasource -->
<property name="hibernate.connection.datasource">java:comp/env/jdbc/MyLocalDB</property>
<property name="hibernate.jdbc.batch_size">20</property>
<!--Number rows to be returned if no setted-->
<property name="hibernate.jdbc.fetch_size">20</property>
<property name="hibernate.jdbc.use_get_generated_keys">true</property>
<property name="hibernate.temp.use_jdbc_metadata_defaults">false</property>
<!--FIXING: Table "...".hibernate_sequence table not found.-->
<property name="hibernate.id.new_generator_mappings">false</property>
</session-factory>
</hibernate-configuration>
I have a Java EE Hibernate project, and I'm using MySQL as a database.
I want that when I first time run the project, it will create the database automatically.
This is my hibernate.cnf.xml:
<?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="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost/InternetProject</property>
<property name="connection.username">root</property>
<property name="connection.password"></property>
<property name="connection.pool_size">10</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<property name="show_sql">true</property>
<mapping class="entities.Business" />
<mapping class="entities.Coupon" />
<mapping class="entities.User" />
<mapping class="entities.LastLogin" />
</session-factory>
</hibernate-configuration>
When I first time run this project on another computer, how can I make the database InternetProject to be created?
According to the config file, it might already do it and I'm not aware to it.
Thanks in advance.
<property name="hibernate.hbm2ddl.auto">create</property>
will create tables. But it will not create database. Change the connection url to generate the database.
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost/InternetProject?createDatabaseIfNotExist=true</property>
<property name="connection.username">root</property>
<property name="connection.password"></property>
<property name="connection.pool_size">10</property>
Update : character encoding when creating database
<property name="connection.url">
jdbc:mysql://localhost/InternetProject?createDatabaseIfNotExist=true&useUnicode=yes&characterEncoding=UTF-8
</property>
<property name="hibernate.hbm2ddl.auto">create</property>
will do
Hibernate will not create the database for you, only the tables. To create the database you need to tell MySQL to create it if it does'nt already exist by adding a parameter to the URL. E.g.:
jdbc:mysql://db:3306/mydatabase?createDatabaseIfNotExist=true
There are multiple option for auto property.
create - It creates new tables corresponding mapping or annotation. It drops existing tables and data.
update - It keeps existing data and tables. It updates schema. here we have to take care contrants.
create-drop - It is same like create but once session gets closed it drops everything.
validate - it validates or matches schema with map or annotation. It's valid for Production environment.
<!-- create create-drop validate update -->
<property name="hbm2ddl.auto">update</property>
I hope it helps.
I am trying to run a basic java desktop application using hibernate with an hsqldb in a standalone mode
when I running my app I got this error
java.sql.SQLInvalidAuthorizationSpecException: invalid authorization specification - not found: SA
Any help please
NB: I use netbeans IDE
I try this example hibernate annotation
and this is my hibernate conf file:
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.HSQLDialect</property>
<property name="hibernate.connection.driver_class">org.hsqldb.jdbcDriver</property>
<property name="hibernate.connection.url">
jdbc:hsqldb:C:\Users\Desktop\testdb</property>
<property name="connection.pool_size">1</property>
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">create</property>
Give username and password you will not get that error.
I have created Java application using Hibernate with this configuration:
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306 /bee</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</property>
<property name="connection.username">root</property>
<property name="connection.password"/>
<property name="hibernate.connection.charSet">UTF-8</property>
<property name="hibernate.connection.characterEncoding">UTF-8</property>
<property name="hibernate.connection.useUnicode">true</property>
<mapping resource="DatabaseMapping.hbm.xml"/>
</session-factory>
</hibernate-configuration>
Everything works fine when Iam using jdbc:mysql://localhost..., but now I need to have the database embedded in my application. Which database should I use? I need to have all my data stored and load it after start the application, update data, save, delete. I use HQL query or SQL query.
What is the simplest way to make the database embedded? I don´t want to change my queries. It would be fine to change only hibernate configuration and set it to the embedded database, is it possible?
One of the advantages of ORM's like Hibernate is to shield you from DB differences. You can use any one of the below as an embedded DB solution. Just change the dialect, driver and URL in hibernate cfg file.
H2
SQLite
HSQLDB
Hava a look at using the H2 database in embedded mode
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">org.h2.Driver</property>
<property name="hibernate.connection.url">jdbc:h2:~/test</property>
<property name="hibernate.dialect">org.hibernate.dialect.H2Dialect</property>
<property name="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</property>
<property name="connection.username">sa</property>
<property name="connection.password"/>
<property name="hibernate.connection.charSet">UTF-8</property>
<property name="hibernate.connection.characterEncoding">UTF-8</property>
<property name="hibernate.connection.useUnicode">true</property>
<property name="hibernate.default_schema">PUBLIC</property>
<mapping resource="DatabaseMapping.hbm.xml"/>
</session-factory>
</hibernate-configuration>
If you don't want to change your queries, consider mysql-mxj (embedded mysql) http://dev.mysql.com/doc/connector-mxj/en/connector-mxj.html
It is not under active development (thanks Oracle). But is prefectly usable and the connector is open source. It is trivial to embed different versions of mysql, but the latest mxj connector embeds 5.5.9