<c:foreach>
Hi all,
Here is the code snippet.
<c:forEach var="product" items="${productList.pageList}" varStatus="status">
<tr>
<td>
<b><font color="BLUE"><c:out value="${product.ownerid}"/></font></b>
<img width="100" height="100" src="/springjsp/loadImages.do?id=<c:out value="${product.ownerid}"/>">
</td>
<td>//I need next value of the item here</td>
</tr>
</c:forEach>
Now i want the second item value on the next column of the <tr>.How to do that.I want next value of the item onthe next <td>
Thanx in advance,
Karthik M
[1011 byte] By [
KarthikMa] at [2007-11-27 0:28:00]
# 1
> <c:out
> value="${product.ownerid}"/>
Instead of c:out you could simply write it as ${product.ownerid} , you don't need c:out
Similarly here:
> 0" src="/springjsp/loadImages.do?id=<c:out
> value="${product.ownerid}"/>">
write it as :
> 0" src="/springjsp/loadImages.do?id="${product.ownerid}">
> </td>
> <td>//I need next value of the item here</td>
You can nest the loops, use the modulus operator to determine the end of the inner loop.
>
> Now i want the second item value on the next column
> of the <tr>.How to do that.I want next value of the
> item onthe next <td>
# 2
>Instead of c:out you could simply write it as ${product.ownerid} , you don't need c:out
Having said that, the <c:out> tag is still useful for escaping HTML characters in values. I prefer using the <c:out> tag to just the ${expr} in certain cases - particularly when printing string values. Numbers aren't so bad.
Another way of controlling it, is to loop over each item, and only do the <tr> tags on every 'nth' one (as determined by status.count)
<c:forEach var="product" items="${productList.pageList}" varStatus="status">
// print a <tr> tag on even items.
<c:if test="${status % 2 == 0}"><tr></c:if>
<td>
<b><font color="BLUE"><c:out value="${product.ownerid}"/></font></b>
<img width="100" height="100" src="/springjsp/loadImages.do?id=<c:out value="${product.ownerid}"/>">
</td>
// close the <tr> tag on odd items - or on the last item.
<c:if test="${(status %2 == 1) || status.last}"></tr></c:if>
</c:forEach>
# 3
Hi,
Thanx for your reply.
When execute the jsp after doing the modifications,Iam getting the exception as follows:
javax.servlet.ServletException: javax.servlet.jsp.JspException: An error occurred while evaluating custom action attribute "test" with value "${status % 2 == 0}": Attempt to coerce a value of type "javax.servlet.jsp.jstl.core.LoopTagSupport$1$Status" to type "java.lang.Long" (null)
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:848)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
org.apache.jsp.springjsp.ImageDisplay_jsp._jspService(ImageDisplay_jsp.java:124)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:112)
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:249)
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1063)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:827)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:736)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:396)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:360)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
Since iam using JSTL for few days,iam unable to fix.So can you help in that.
Thanks & Regards,
Karthik M
# 4
> >Instead of c:out you could simply write it as
> ${product.ownerid} , you don't need c:out
> Having said that, the <c:out> tag is still useful for
> escaping HTML characters in values.
c:out inside an attribute value cannot be used in some circumstances e.g: when the JSP is written in XML format, having c:out inside the attribute value breaks the validity/wellformedness of the XML syntax.
In this case use ${fn:escapeXml(someValue)}
the above syntax is also shorter than c:out but requires an additional fn taglib.
# 5
You are getting this error because status is an Object of type:
javax.servlet.jsp.jstl.core.LoopTagSupport
> javax.servlet.ServletException:
> javax.servlet.jsp.JspException: An error occurred
> while evaluating custom action attribute "test" with
> value "${status % 2 == 0}": Attempt to coerce a value
> of type
> "javax.servlet.jsp.jstl.core.LoopTagSupport$1$Status"
You need the index property of the varStatus variable, so change it to this:
<c:if test="${status.index %2==0}">
</c:if>
