JSP DataBase Result Not Displaying Properly - mysql

Question

I have a JSP MySQL query
<sql:query var="libraries" dataSource="jdbc/ArabiTagOnline"><br>
SELECT l.LibraryId, v1.LAvalue AS "dbESTid", v2.LAValue AS "LibName", v3.LAValue AS "Desc"
FROM ((Library l LEFT JOIN LibAttrValue v1 ON l.LibraryId = v1.LibraryId AND v1.AttributeId = 1)
LEFT JOIN LibAttrValue v2 ON l.LibraryId = v2.LibraryId AND (v2.AttributeId = 2 OR v2.AttributeId IS NULL))
LEFT JOIN LibAttrValue v3 ON l.LibraryId = v3.LibraryId AND (v3.AttributeId = 6 OR v3.AttributeId IS NULL)
<\sql:query
This returns four columns.
I tried to rename the columns in the results with AS but when iterating over the results
<c:forEach var="libraryResults" items="${libraries.rows}">
<tr>
<td>${libraryResults.Libraryid}</td>
<td>${libraryResults.dbESTid}</td>
<td>${libraryResults.LibName}</td>
<td>${libraryResults.Desc}</td>
</tr>
</c:forEach>
When loading the page, the columns dbESTid, LibName and Desc are blank.
I asked ${libraries.columnNames} and found out the AS statement in my query didn't rename the columns, they are all still LAValue. ${libraryResults.LAValue} only returns Desc. Any help on how I can populate this table?

Answer 1

You don't need double quotes around column aliases in your SQL - that may be confusing the jdbc driver. Also, why the break tag within the <sql-query>?
Column aliasing should work. However, if the problem persists one possible workaround is to iterate over columns within each row:
<c:forEach var="libraryResults" items="${libraries.rows}">
<tr>
<c:forEach var="column" items="${libraryResults}">
<td><c:out value="${column.value}"/></td>
</c:forEach>
</tr>
</c:forEach>
That said, the real solution is, of course, to use an MVC framework so you don't have to embed your queries in JSP.