<sql:setDataSource var="dataSrc" driver="org.gjt.mm.mysql.Driver" url="jdbc:mysql://localhost/mydb" user="root" password="123"/> 
<sql:query var="queryResults" dataSource="${dataSrc}"> 
select * from mytable 
</sql:query> 
<sql:update var="updateCount" dataSource="${dataSrc}"> 
INSERT INTO mytable values ('胡学文',4) 
</sql:update> 
<c:forEach var="row" items="${queryResults.rows}"> 
<tr> 
<td><c:out value="${row.username}"/></td> 
<td><c:out value="${row.passward}"/></td> 
</tr> 
</c:forEach>