How to bound a JNDI reference to MySQL driver?

Question

Hi.
Hi.
I am trying to write a simple J2EE application that would use Entety EJB with bean persisatance. I have downloaded driver from the www.mysql.org, copied it to the lib/system directory and modified J2EE_CLASSPATH in bin/userconfig.bat. I am using reference implementation server and with deploytool in �tools/serverconfiguration/datasourses/standard� I am specifying driver: org.gjt.mm.mysql.Driver or com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSource and in datasourses in JNDI Name I write �jdbc/mydb� and in JDBC URL �jdbc:mysql://localhost:3306/this�, problem comes up when I try to reference �jdbc/mydb� from an entity bean, during deployment process of application it says that it is not bound
Binding name:`java:comp/env/jdbc\persondb`
Warning: Reference reference java:comp/env/jdbc\persondb is using a JNDI name that is not bound: jdbc\mydb
I do not get it, what I am doing wrong? Please help me to find out how to bind a JNDI name to MySQL

Answer 1

Hi! I had the same problem, too. I�m Brazilian and I�ve been learning the English language yet, but I�ll try to describe how to configure J2EE with MySQL.
I am using MySQL version 4.1.7 with J2EE version 1.3 on Windows XP Professional. The driver version of MySQL is 3.0.16.
You have to configure the following two files:
- <J2EE_HOME>\bin\setenv.bat
- <J2EE_HOME>\config\resource.properties
Do the following steps:
1) Copy the JAR file of MySQL driver (mysql-connector-java-3.0.16-ga-bin.jar) to <J2EE_HOME>\lib directory.
2) In <J2EE_HOME>\bin directory open the setenv.bat file and analize the code. It is not hard to understand the code, it is just the classpath configuration of J2EE. After understand it, add a reference of MySQL driver (mysql-connector-java-3.0.16-ga-bin.jar), that was copied to <J2EE_HOME>\lib directory.
3) Run the <J2EE_HOME>\bin\j2eeadmin.bat to configure the resource.properties file.There are two command lines to be executed, as below:
- j2eeadmin.bat -addJdbcDriver <CLASS NAME OF THE DRIVER>
- j2eeadmin.bat -addJdbcDatasource <JNDI NAME> <URL>
For example:
- j2eeadmin.bat -addJdbcDriver "com.mysql.jdbc.Driver"
- j2eeadmin.bat -addJdbcDatasource "jdbc/mysql/test" "jdbc:mysql://localhost/test?user=username&password=pass"
4) After run j2eeadmin.bat, the resource.properties file will be modified. But when I did it and when I executed the verbose command to start J2EE, some error messages was exhibited. So I decided to open the resource.properties file and I noticed that the character "\" was added erroneously in a lot of places of the code. It did not seem correct, so I decided to remove these characters replacing them. I was right! After I did it, I run verbose again and no more message error ocurred. I think it is a bug of J2EE.
Finish! I modified the datasource JNDI to access MySQL and then I run my EAR application. No problems occurred. My application is running succesfully.
Good luck!