How to use JDBC driver (type 4) with struts?????

Hi! have a nice day!!!!!
i want to connect database use struts with JDBC driver type 4. i must add <data-source/> to <data-sources></data-sources> tag but i don't know how to use <data-source/> with it's properties. please tell me! thank very much

thank for reply!!! :D
my project require to use struts 1.2.8 with ODBC (i think so it's type 1) for connect to database (SQL server). i think so it has two step :
1. edit file struts-config.xml with <data-sources> tag.
2. programming in file java (which extends from Action class) connect to database.
but how to programming in file java??? (i think so must use objects DataSource & Connection)

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==========================================================
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