I am using database connection pool to connect to mysql database. I am using Tomcat 5 and J2SE 1.4.2, the server.xml file is like following

<Context path="/NPD" docBase="NPD" debug="5" reloadable="true" crossContext="true">
<Logger className="org.apache.catalina.logger.FileLogger" prefix="localhost_npd.log." suffix=".txt" timestamp="true"/>



        <Resource name="jdbc/db1" auth="Container" type="javax.sql.DataSource" />

        <ResourceParams name="jdbc/db1">
            <parameter>
                <name>factory</name>
                <value>org.apache.commons.dbcp.BasicDataSourceFact ory</value>
            </parameter>

            <parameter>
                <name>maxActive</name>
                <value>100</value>
            </parameter>

            <parameter>
                <name>maxIdle</name>
                <value>30000</value>
            </parameter>

            <parameter>
                <name>maxWait</name>
                <value>100</value>
            </parameter>

            <parameter>
                <name>username</name>
                <value>npc</value>
            </parameter>

            <parameter>
                <name>password</name>
                <value>n</value>
            </parameter>

            <parameter>
                <name>driverClassName</name>
                <value>com.mysql.jdbc.Driver</value>
            </parameter>

            <parameter>
                <name>url</name>
                <value>jdbc:mysql://localhost:3306/db1</value>
            </parameter>
        </ResourceParams>

        </Context>


This works very well in Windows 2000. But I need to host the website in linux server and it shows null pointer exception error. The problem is not due to driver mismatch as I can connect to database without using DBCP. Can you pls suggest me what is the problem?


anjila

This forum is for Feedback, not support. I suggest asking this in the Tomcat area or the XML area, depending on where you think your problem lies.

Snib

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