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The configuration steps that I have taken are listed below:
Jakarta-Commons DBCP 1.2.1 Jakarta-Commons Collections 2.1.1 Jakarta-Commons Pool 1.2
These jar files are installed in $CATALINA_HOME/common/lib.
Step 2. download classes12.zip rename it to classes12.jar and place it in TOMCAT_HOME\common\lib
Step 3. C:\jakarta-tomcat-5.0.27\conf\server.xml configuration I did put the driver and URL in the C:\jakarta-tomcat-5.0.27\conf\server.xml file (The code shown below is inserted between the <Logger className="org.apache.catalina.logger.FileLogger" directory="logs" prefix="localhost_log." suffix=".txt" timestamp="true"/> and the closing </Host> tag).
Step 4. web.xml Configuration (the one in MyApp/WEB-INF directory)
add these lines after the <taglib> element
[ September 14, 2004: Message edited by: JiaPei Jen ] [ September 14, 2004: Message edited by: JiaPei Jen ]
I had this problem as well, running examples from the tomcat site and in reference books. One of the problems is that Tomcat no longer uses the server.xml file to hold the <context> information for the JNDI reference. Look in your <tomcat-root>\conf\Catalina\localhost directory for individual xml files for each context. So if your application is myapp, then there will be a myapp.xml file that has all the context-specific information. The advice from the previous posting is correct, use the Tomcat Administration application supplied with Tomcat to set up your Data Source. When you log in, under the Service node, there is a Host node, then a node for each of the contexts of your tomcat installation. Expand the node for your app and click in Data Source. Then add a new Data Source and the appropriate information. You can then place the below code in a jsp page, servlet, or javabean to test it out:
You would need to import java.naming.*, javax.sql.*, and java.sql.* to run the above code.