java.lang.NumberFormatException: For input string: "name"

Question

when i want to display the list in my jsp page.i'm getting this error

my foreach loop to display the list:

<c:forEach  var="list" items="${consultantsList}" varStatus="iter">
<c:out value="${list.name}"></c:out>
 </c:forEach>

my controller:

@Controller
@RequestMapping("/patient")
public class PatientController {

@Autowired
private PatientService patientService;

@RequestMapping(value="/registerPatient.htm")
public ModelAndView getRegisterPage()
{
    ModelAndView modelAndView=new ModelAndView();
    modelAndView.setViewName("register");
    List<Consultant> list=patientService.getAllConsultant();
    modelAndView.addObject("consultantsList",list);
    modelAndView.addObject("patient", new Patient());

    return modelAndView;
}

when i completely remove the foreach loop the jsp will display without any exception.

Exception: org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.apache.tiles.impl.CannotRenderException: ServletException including path '/WEB-INF/jsp/i1-smhBaseLayout.jsp'. org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.ja va:656) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) root cause:

org.apache.tiles.impl.CannotRenderException: ServletException including path '/WEB-INF/jsp/i1-smhBaseLayout.jsp'.
org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:692)
org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:644)
org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:627)
org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:321)
org.springframework.web.servlet.view.tiles2.TilesView.renderMergedOutputModel(TilesView.java:124)
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

Are you sure patientService.getAllConsultant() is not null? If null return new ArrayList<>(0) in patientService.getAllConsultant(). Or better an immmutable List. — vhunsicker
– vhunsicker, Commented Mar 22, 2013 at 12:58

Saha · Accepted Answer · 2013-03-27 09:33:33Z

3

The ${consultantsList} here is

${consultantsList.name}

is a List, however i am attempting to access it as if it is a single User. This is not valid. In EL, a List can only be accessed with an integer index, indicating the position of the list item you'd like to access, like so the below statement gives me the names

${consultant[1]}

answered Mar 27, 2013 at 9:33

Saha

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Anthony Grist · Accepted Answer · 2013-03-22 12:04:25Z

0

Your <c:out> tag isn't written properly, and as a result isn't being closed. You have this:

<c:out value="${list.name}"</c:out>

It should look like this:

<c:out value="${list.name}"/>

answered Mar 22, 2013 at 12:04

Anthony Grist

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Code2Interface · Accepted Answer · 2013-03-22 12:28:29Z

0

wrap the for each with an if condition checking the size and null check for the consultantsList object. Please paste the exception coming.

answered Mar 22, 2013 at 12:28

Code2Interface

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3 Comments

Code2Interface Over a year ago

a bit more stack trace after this line javax.servlet.http.HttpServlet.service(HttpServlet.java:803) root cause

Code2Interface Over a year ago

i may be going out of the way but can you check the version of JSP tag library and update it with the latest version..just try

Saha Over a year ago

thanx for you time..i got the answer The ${consultantsList} here is ${consultantsList.name} is a List<Consultant>, however i am attempting to access it as if it is a single User. This is not valid. In EL, a List can only be accessed with an integer index, indicating the position of the list item you'd like to access, like so the below statement gives me the names ${consultant[1]}

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