Question

jstl + Jsp + j2ee + Radio box selection + <c:if>

Asked by: Srinivasu_V

<c:if test='${adduser.userstatus}'.size()>0>
      <c:choose>
          <c:when test='${adduser.userstatus}='1'>
              <input type="radio" id="rbntActive" class="leftLabel" name="userstatus" value=""  checked="checked" />Active
  <input type="radio" id="rbtnInActive" class="leftLabel" name="userstatus" value="" />Inactive</td>
           </c:when>
           <c:otherwise>
           </c:otherwise>
         </c:choose>
       </c:if>
from the above adduser is my list & userstatus is my bean property. it'll be having only 1 value either 0 or 1.
By using choose, when & other i would like to create Radio buttons if its 1 then Active radio button should be selected. If its 0 then InActive radio button should select...  how can i do that???  i tried above but getting some prob...     pls rectify.

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Asked On
2009-08-31 at 08:03:29ID24694960
Topics

Java Standard Tag Library (JSTL) & Server Tags

,

Java Server Pages (JSP)

,

Java Programming Language

Participating Experts
2
Points
500
Comments
33

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Answers

 

by: dravidnsrPosted on 2009-08-31 at 08:20:05ID: 25223481

<c:if test='${adduser.userstatus}.size()>0'>
<c:when test='${adduser.userstatus} eq 1'>

 

by: Srinivasu_VPosted on 2009-08-31 at 08:27:54ID: 25223547

But i'm getting the following prob:

455:             <c:if test='${adduser.userstatus}.size()>0'>
456:             <c:when test='${adduser.userstatus} eq 1'>
457:             </c:when>             </c:if>


An error occurred at line: 456 in the jsp file: /jsp/AddUser.jsp
The method setTest(boolean) in the type WhenTag is not applicable for the arguments (String)
453:        <td class="leftLabel" style="width: 60%" >

 

by: Srinivasu_VPosted on 2009-08-31 at 08:29:04ID: 25223559

from my list 1 or 0 is coming in the form of CHAR

 

by: dravidnsrPosted on 2009-08-31 at 08:36:23ID: 25223645

This may be  ur server pblm ???
r u using tomcat ??

 

by: Srinivasu_VPosted on 2009-08-31 at 08:40:08ID: 25223679

Yes tomcat6.x
how to rectify it.........   Based on that, i need to generate Radio Buttons.  Any other Possibility by using only jstl or jsp
Not javascript......

 

by: dravidnsrPosted on 2009-08-31 at 08:41:11ID: 25223688

they pblm in 6.0.20
r u using this version ??

 

by: Srinivasu_VPosted on 2009-08-31 at 08:42:58ID: 25223700

Yes i'm using 6.0.20
so wht to do??  
i need the solution in jsp or jstl??

 

by: dravidnsrPosted on 2009-08-31 at 08:50:22ID: 25223762

<c:if test="${adduser.userstatus}.size()>0">
<c:when test="${adduser.userstatus} eq 1">

 

by: dravidnsrPosted on 2009-08-31 at 08:50:32ID: 25223764

 

by: rrz@871311Posted on 2009-08-31 at 10:04:03ID: 25224410

If  adduser is your list then you could try using  

<%@taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
<c:if test='${fn:length(adduser) > 0}'>
      <c:choose>
          <c:when test='${adduser.userstatus = 1}'>
              <input type="radio" id="rbntActive" class="leftLabel" name="userstatus" value=""  checked="checked" />Active
  <input type="radio" id="rbtnInActive" class="leftLabel" name="userstatus" value="" />Inactive</td>
           </c:when>
           <c:otherwise>
              <input type="radio" id="rbntActive" class="leftLabel" name="userstatus" value=""   />Active
  <input type="radio" id="rbtnInActive" class="leftLabel" name="userstatus" value="" checked="checked" />Inactive</td>
           </c:when>
           </c:otherwise>
         </c:choose>
</c:if>

                                              
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by: Srinivasu_VPosted on 2009-08-31 at 21:41:38ID: 25228559

Hi Sage, I'm getting the following prob with the above code:

org.apache.jasper.JasperException: /jsp/AddUser.jsp(469,10) "${adduser.userstatus = 1}" contains invalid expression(s): javax.el.ELException: Error Parsing: ${adduser.userstatus = 1}
      at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
      at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
      at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:198)
      at org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1151)

 

by: rrz@871311Posted on 2009-08-31 at 22:06:11ID: 25228647

Sorry that should be
<c:when test='${adduser.userstatus == 1}'>

 

by: Srinivasu_VPosted on 2009-08-31 at 22:13:13ID: 25228672

sage, i've tried with that above change already...  but throwing some other prob:

javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in <forEach>
      at org.apache.taglibs.standard.functions.Functions.length(Functions.java:219)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.lang.reflect.Method.invoke(Unknown Source)

 

by: rrz@871311Posted on 2009-08-31 at 22:30:00ID: 25228734

>from the above adduser is my list & userstatus is my bean property.
Please explain in more detail.   What type is adduser ?  Show us your bean code. Do you have a <useBean> tag ?

 

by: Srinivasu_VPosted on 2009-08-31 at 22:33:18ID: 25228746

adduser is returning a ArrayList.
userstatus is returning 1 or 0.
i'm not using <userBean>

 

by: rrz@871311Posted on 2009-08-31 at 22:49:14ID: 25228812

What does

${fn:length(adduser)}

print out ?

>userstatus is my bean property.
What is the name of your bean ? Where is it created ?


 

by: rrz@871311Posted on 2009-08-31 at 22:56:52ID: 25228843

>userstatus is my bean property  
If that is so then
>adduser.userstatus  
should be  
yourBeanName.userstatus

 

by: rrz@871311Posted on 2009-08-31 at 22:58:05ID: 25228845

Or is adduser your bean ?

 

by: Srinivasu_VPosted on 2009-08-31 at 22:59:15ID: 25228851

I fogot to mention bean name is User.

 

by: rrz@871311Posted on 2009-08-31 at 23:04:38ID: 25228876

In that case you should use
<c:when test='${User.userstatus == 1}'>

 

by: rrz@871311Posted on 2009-08-31 at 23:05:35ID: 25228878

Post your error message now

 

by: rrz@871311Posted on 2009-08-31 at 23:24:23ID: 25228943

Good night. I will be back in 12 hours.

 

by: Srinivasu_VPosted on 2009-09-01 at 01:43:51ID: 25229539

<c:if test='${fn:length(adduser) > 0}'>
      <c:choose>
          <c:when test='${User.userstatus == 1}'>
              <input type="radio" id="rbntActive" class="leftLabel" name="userstatus" value=""  checked="checked" />Active
  			  <input type="radio" id="rbtnInActive" class="leftLabel" name="userstatus" value="" />Inactive</td>
           </c:when>
           <c:otherwise>
              <input type="radio" id="rbntActive" class="leftLabel" name="userstatus" value=""   />Active
  			  <input type="radio" id="rbtnInActive" class="leftLabel" name="userstatus" value="" checked="checked" />Inactive</td>
           </c:otherwise>
         </c:choose>
</c:if>
I'm getting the following Exception with the above code::
 
javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in &lt;forEach&gt;
	at org.apache.taglibs.standard.functions.Functions.length(Functions.java:219)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.el.parser.AstFunction.getValue(AstFunction.java:110)
	at org.apache.el.parser.AstGreaterThan.getValue(AstGreaterThan.java:37)
	at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
	at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:935)
	at org.apache.jsp.jsp.AddUser_jsp._jspx_meth_c_005fif_005f0(AddUser_jsp.java:793)
	at org.apache.jsp.jsp.AddUser_jsp._jspService(AddUser_jsp.java:631)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
	at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:239)
	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1062)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:709)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:613)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:525)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
	at java.lang.Thread.run(Unknown Source)
Sep 1, 2009 2:11:18 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet ModelValidation threw exception
javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in &lt;forEach&gt;
	at org.apache.taglibs.standard.functions.Functions.length(Functions.java:219)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.el.parser.AstFunction.getValue(AstFunction.java:110)
	at org.apache.el.parser.AstGreaterThan.getValue(AstGreaterThan.java:37)
	at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
	at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:935)
	at org.apache.jsp.jsp.AddUser_jsp._jspx_meth_c_005fif_005f0(AddUser_jsp.java:793)
	at org.apache.jsp.jsp.AddUser_jsp._jspService(AddUser_jsp.java:631)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
	at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:239)
	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1062)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:709)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:613)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:525)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
	at java.lang.Thread.run(Unknown Source)

                                              
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by: Srinivasu_VPosted on 2009-09-01 at 03:02:43ID: 25229880

But with the above function tag lib, i'm getting other probs:
I'm trying with the following code:
I think every thing is correct, but adduser is a entity object for me...  i'm using it like below, its failed in the first line only.....         any help:::::::::::;
If adduser is a list, then i can implement in the following way, but adduser is a entity obj (class obj)

<c:forEach items="${adduser}" var="User" varStatus="status">
   <c:choose>  
      <c:when  test="${User.userstatus == '1'}">
      <input type="radio" id="rbntActive" class="leftLabel" name="userstatus" value=""  
                  checked="checked" />Active
  <input type="radio" id="rbtnInActive" class="leftLabel" name="userstatus" value="" />Inactive
</c:when>
<c:otherwise>
              <input type="radio" id="rbntActive" class="leftLabel" name="userstatus" value="" />Active
                    <input type="radio" id="rbtnInActive" class="leftLabel" name="userstatus" value="" checked="checked" />Inactive
                  </c:otherwise>
              </c:choose>
             </c:forEach>

 

by: dravidnsrPosted on 2009-09-01 at 05:33:30ID: 25230857

u can change obj into LIst and send it to JSp

 

by: dravidnsrPosted on 2009-09-01 at 05:35:20ID: 25230871

for(int j=0; j<adduser.size(); j++)
                   {
                         user = new User();
                         Object[] obj=(Object[]) adduser.get(j);
                         System.out.println(obj[0].toString());
                  
                        
                        User.setUserStatus(obj[0].toString());
                  
                         addUserList.add(User);
                   }

 

by: rrz@871311Posted on 2009-09-01 at 08:00:08ID: 25232249

>adduser is a entity obj (class obj)  
What is that ? Please explain in more detail ?  
On your page, please substitute the following for your <c:forEach>  code. What does it print ?  

Scripting variable is <%=adduser%>!!!
Scoped variable is ${adduser}!!!
Bean property is <%=User.userstatus%>!!!
Bean property is ${User.userstatus}!!!

 

by: rrz@871311Posted on 2009-09-01 at 08:02:55ID: 25232277

oops, that should have been

Scripting variable is <%=adduser%>!!!
Scoped variable is ${adduser}!!!
Bean property is <%=User.getUserstatus()%>!!!
Bean property is ${User.userstatus}!!!

 

by: dravidnsrPosted on 2009-09-01 at 08:08:48ID: 25232347

Hi rrz@87311,

Scoped variable is ${adduser}!!! which scope it is ?? page ,request ?

 

by: rrz@871311Posted on 2009-09-01 at 08:16:48ID: 25232442

dravidnsr>which scope it is ??  
I don't know. But  EL should find it.
I am just trying to understand Srinivasu's   problem.  

 

by: Srinivasu_VPosted on 2009-09-01 at 08:18:30ID: 25232458

Its from request only...

 

by: rrz@871311Posted on 2009-09-01 at 08:35:27ID: 25232662

What does this print out ?

Scripting variable is <%=adduser%>!!!
Scoped variable is ${adduser}!!!
Bean property is <%=User.getUserstatus()%>!!!
Bean property is ${User.userstatus}!!!

 

by: Srinivasu_VPosted on 2009-09-03 at 01:23:22ID: 31622564

Good Sol

20120131-EE-VQP-002

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