Tomcat - Automatically Setting up the JDBC connection on deployment

Question

I got sick of setting up the JDBC source in Tomcat after deploying, this is how I overcame it.
1. Create a directory:
{project}/src/web/META-INF
2. Create a file there
{project}/src/web/META-INF/context.xml
Heres is the contents of context.xml
<?xml version='1.0' encoding='utf-8'?>
<Context docBase="/root/jakarta-tomcat/webapps/toll" path="/toll" workDir="work/Catalina/localhost/toll">
  <Resource auth="Container" description="Rave generated DataSource Reference" name="jdbc/transact" type="javax.sql.DataSource"/>
  <ResourceParams name="jdbc/transact">
    <parameter>
      <name>maxWait</name>
      <value>5000</value>
    </parameter>
    <parameter>
      <name>maxActive</name>
      <value>200</value>
    </parameter>
    <parameter>
      <name>password</name>
      <value>dummypass</value>
    </parameter>
    <parameter>
      <name>url</name>
      <value>jdbc:mysql://localhost:3306/transact?autoReconnect=true</value>
    </parameter>
    <parameter>
      <name>driverClassName</name>
      <value>com.mysql.jdbc.Driver</value>
    </parameter>
    <parameter>
      <name>maxIdle</name>
      <value>50</value>
    </parameter>
    <parameter>
      <name>username</name>
      <value>dummyuser</value>
    </parameter>
  </ResourceParams>
</Context>Hope this helps someone.
Regards
Jonathan

Answer 1

Also add this in there for Tomcat .. we are using Tomcat 5 so check for other versions.
   <parameter>
      <name>removeAbandoned</name>
      <value>true</value>
    </parameter>
    <parameter>
      <name>removeAbandonedTimeout</name>
      <value>1200</value>
    </parameter>It turns on Tomcats connection recovery, so if your application has a connection leak and doesn't shut them all down. Tomcat will shut down unused connections, it uses the timeout value to determine which are unused. (1200 secs - 20 mins)
Regards
Jonathan