Developing a Custom Tag Library for Database Handling

In the preceding chapter, you learned how to create and use simple and nested actions. In this section, you will create a set of co-operating and iterative tags that you can use for database queries and manipulation instead of using JDBC directly.

Connection, User Id, and Password Tags

The connection tag creates a database connection using information such as the URL, name, and password. The user Id and password can be provided as subelements of the connection tag.

<db:connection id="conn" url="jdbc:odbc:auction">
    <db:userId><%= userId%></db:userId>
    <db:password><%= password%></db:password>

The nested tags set the user ID and password information to create the connection. ...

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