Database Pooling in Glassfish
Requirements
·
Glassfish
Server
Download and install Glassfish server
from https://glassfish.java.net/downloads/3.1.2.2-final.html
Glassfish provides its
Connection Pooling mechanism for resources such as EIS Server, JMS Server and
Database Server. Connection
Pooling is intended to share
server resources among requesting clients.
Once Glassfish is installed download and
copy mysql-connector-java-5.1.18-bin.jar file into Glassfish lib
directory.
Open command promt and move to
<glassfish_home>/bin directory and execute following commands.
To Start the Default Domain
Run
the
asadmin start-domain
command without an operand:To Stop the Default Domain
Run the
asadmin
stop-domain command without an operand:To Create JDBC Connection Pool
1. Redirect
to http://<server_name>:4848
and if prompted, log in to the Administration Console.
2.
Click the Resources node in the tree on the
left.
The Resources page is displayed.
3.
Click on JDBC.
The JDBC is displayed.
4.
Click on JDBC Connection Pool.
The JDBC Connection Pool page is displayed.
5. Click
the New Button on top of the grid
The New JDBC Connection Pool page is displayed.
Enter the Pool Name, select
Resource Type, Database Driver Vendor and click Next.
On next page in Additional
Properties Tab enter the properties like User, Password URL etc. Click on
Finish Button
6. Once
JDBC Connection Pool is created Click on Ping to test if the pool is
created successfully. If not successful, check all the properties again.
7. Now
Under JDBC Resources, click on JDBC Resources.
The JDBC Resources page is
displayed.
8. Click
New Button. In New JDBC Resource
page
9. New
JDBC Resource page is displayed
10. Select pool from Pool Name, and give JNDI name.
Now that we have
created our DataSource, we'll configure our hihernate.cfg.xml file to
access this Data Source. Open your hihernate.cfg.xml from Resources
folder and add following properties inside <session-factory>
<property name="connection.datasource"> Your DSN Name</property>
<property name="connection.driver_class"> com.mysql.jdbc.Driver</property>
