0. Introduction
Versions of MySQL and JDBC drivers that have been reported to work:
MySQL 3.23.47, MySQL 3.23.47 using InnoDB,, MySQL 3.23.58, MySQL 4.0.1alphaConnector/J 3.0.11-stable (the official JDBC Driver)mm.mysql 2.0.14 (an old 3rd party JDBC Driver)
Before you proceed, don't forget to copy the JDBC Driver's jar into $CATALINA_HOME/lib.
1. MySQL configuration
Ensure that you follow these instructions as variations can cause problems.
Create a new test user, a new database and a single test table. Your MySQL user must have a password assigned. The driver will fail if you try to connect with an empty password.
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mysql> GRANT ALL PRIVILEGES ON *.* TO javauser@localhost
-> IDENTIFIED BY 'javadude' WITH GRANT OPTION;
mysql> create database javatest;
mysql> use javatest;
mysql> create table testdata (
-> id int not null auto_increment primary key,
-> foo varchar(25),
-> bar int);
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Note: the above user should be removed once testing is complete!
Next insert some test data into the testdata table.
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mysql> insert into testdata values(null, 'hello', 12345);
Query OK, 1 row affected (0.00 sec)
mysql> select * from testdata;
+----+-------+-------+
| ID | FOO | BAR |
+----+-------+-------+
| 1 | hello | 12345 |
+----+-------+-------+
1 row in set (0.00 sec)
mysql>
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2. Context configuration
Configure the JNDI DataSource in Tomcat by adding a declaration for your resource to your Context.
For example:
3. web.xml configuration
Now create a WEB-INF/web.xml for this test application.
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MySQL Test App
DB Connection
jdbc/TestDB
javax.sql.DataSource
Container
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4. Test code
Now create a simple test.jsp page for use later.
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<%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
select id, foo, bar from testdata
DB Test
Results
Foo ${row.foo}
Bar ${row.bar}
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That JSP page makes use of JSTL's SQL and Core taglibs. You can get it from Apache Tomcat
Taglibs - Standard Tag Library project — just make sure you get a 1.1.x release. Once you have JSTL, copy jstl.jar andstandard.jar to your web app's WEB-INF/lib directory.
Finally deploy your web app into $CATALINA_BASE/webapps either as a warfile called DBTest.war or into a sub-directory called DBTest
Once deployed, point a browser at http://localhost:8080/DBTest/test.jsp to view the fruits of your hard work.
