Regarding Hsqldb ...in Tomact

Question

Hi,
Can any one tell me how to configure HSQLDB database
in tomcat and servlets JDBC path...
Thanks
ranjan

Answer 1

If you haven't any servlets running, I would get that going first before you add a database. If you have questions about html file, classes, etc and where they go, you need to get that straightened out. I use tomcat with the structure TOMCAT_HOME/webapps/ROOT/yourapp/WEB-INF/classes
Put any html and JSP files under 'yourapp', and your servlet classes go in the 'classes' folder. Also add the hsqldb.jar file under WEB-INF/lib.
The 'java org.hsqldb.Server -port 3500 -database dbfile' command is issued from a dos window, from the folder in which you have your hsqldb. Be sure your classpath is also set for this folder.
In your web.xml file, add variables like:    <servlet>
        <servlet-name>YourServlet</servlet-name>
        <servlet-class>YourServlet</servlet-class>
       <init-param>
          <param-name>driver</param-name>
          <param-value>org.hsqldb.jdbcDriver</param-value>
       </init-param>
       <init-param>
          <param-name>url</param-name>
          <param-value>jdbc:hsqldb:hsql://localhost:3500</param-value>
//NOTE: the end of above line is not really a comment, but part of the DB url
       </init-param>
       <init-param>
          <param-name>user</param-name>
          <param-value>sa</param-value>
       </init-param>
       <init-param>
          <param-name>pass</param-name>
          <param-value></param-value>
       </init-param>
    </servlet>To read those in in your servlet, use getInitParameter("driver"), etc.