[Spring 3.0.5] form:select causes a java.lang.IllegalStateException

**megahunter** · Jan 23rd, 2013, 01:59 PM

Hello,
I'm currently coding a web project for university using Spring 3.0.5 but I'm encountered a problem with a form in a .jsp file while causes an exception (see below). To be more specific, the problem seems to be with the <form:select> block as the form works if I remove it.

I've spent the whole afternoon troubleshooting and trying various fixes without any results. I'd be very thankful if someone could help me solve this problem.

Details
The .jsp is supposed to display a form with two text fields to input date and a drop-down list to pick an employee from those present in the database. I've not copied the code to my implementation of the Workforce interface, which handles the employee list retrieval, but it works flawlessly. Any errors with the list must come from later on in the code.

message java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'eInfo' available as request attribute

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'eInfo' available as request attribute
org.apache.jasper.servlet.JspServletWrapper.handle JspException(JspServletWrapper.java:502)
org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:424)
org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet .java:717)
org.springframework.web.servlet.view.InternalResou rceView.renderMergedOutputModel(InternalResourceVi ew.java:238)
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.p rocessRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.d oGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet .java:617)
javax.servlet.http.HttpServlet.service(HttpServlet .java:717)

root cause

java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'eInfo' available as request attribute
org.springframework.web.servlet.support.BindStatus .<init>(BindStatus.java:141)
org.springframework.web.servlet.tags.form.Abstract DataBoundFormElementTag.getBindStatus(AbstractData BoundFormElementTag.java:174)
org.springframework.web.servlet.tags.form.Abstract DataBoundFormElementTag.getPropertyPath(AbstractDa taBoundFormElementTag.java:194)
org.springframework.web.servlet.tags.form.Abstract DataBoundFormElementTag.getName(AbstractDataBoundF ormElementTag.java:160)
org.springframework.web.servlet.tags.form.Abstract DataBoundFormElementTag.autogenerateId(AbstractDat aBoundFormElementTag.java:147)
org.springframework.web.servlet.tags.form.Abstract DataBoundFormElementTag.resolveId(AbstractDataBoun dFormElementTag.java:138)
...

mViewEmployee.jsp

Code:

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@page isELIgnored="false"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
		<title>Caradeuc Pro Tools - View Employee Reports</title>
	</head>
	<body>
		<form:form action="/projetIST/mViewEmployee" method="post" commandName="eInfo">
			<form:select path="eid">
				<form:option value="0" label="-- Select --" />
				<form:options items="${employees}" itemValue="uid" itemLabel="name" />
			</form:select>
			<label for="start">Start date (DD/MM/YYYY): </label>
			<input type="text" name="start"><br/>
			<label for="end">End date (DD/MM/YYYY): </label>
			<input type="text" name="end"><br/>
			<input type="submit" value="Submit">
		</form:form>
	</body>
</html>

SpringController.java

Code:

package com.caradeuc.pro.spring;

//Imports

@Controller
public class SpringController {
	
	Workforce wf; 
	
	public SpringController() {
		wf = new WorkforceImpl();
	}
	
	//
	// Other mappings
	//
	
	@RequestMapping(method=RequestMethod.GET, value="/mViewEmployee")
	public ModelAndView showViewEmployeeForm() {
		ViewEmployeeFormInfo eInfo = new ViewEmployeeFormInfo();
		eInfo.setEmployees(wf.getListOfEmployees());
		eInfo.setEnd("end");
		eInfo.setStart("start");
		ModelAndView mav = new ModelAndView("mViewEmployee", "eInfo", eInfo);
		return mav;
	}
	
	@RequestMapping(method=RequestMethod.POST, value="/mViewEmployee")
	public String getViewEmployeeForm(@ModelAttribute("eInfo") ViewEmployeeFormInfo eInfo, BindingResult result, HttpServletRequest req) {
		if (result.hasErrors())
			return "mViewEmployee";  
		System.out.println(eInfo.getEnd());
		System.out.println(eInfo.getStart());
		return null;
	}
}

ViewEmployeeFormInfo.java

Code:

package com.caradeuc.pro.spring.models;

import java.util.List;

import com.caradeuc.pro.application.Employee;

public class ViewEmployeeFormInfo {

	private String start;
	private String end;
	private String eid;
	private List<Employee> employees;
	
	
	public String getStart() {
		return start;
	}
	public void setStart(String start) {
		this.start = start;
	}
	public String getEnd() {
		return end;
	}
	public void setEnd(String end) {
		this.end = end;
	}
	public String getEid() {
		return eid;
	}
	public void setEid(String eid) {
		this.eid = eid;
	}
	public List<Employee> getEmployees() {
		return employees;
	}
	public void setEmployees(List<Employee> employees) {
		this.employees = employees;
	}	
}

Employee.java

Code:

package com.caradeuc.pro.application;

public class Employee {
	int uid;
	String name;
	
	//Constructors
	public Employee(int uid, String name) {
		super();
		this.uid = uid;
		this.name = name;
	}

	public int getUid() {
		return uid;
	}

	public void setUid(int uid) {
		this.uid = uid;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
}

**blandger** · Jan 23rd, 2013, 02:05 PM

Code:

@RequestMapping(method=RequestMethod.POST, value="/mViewEmployee")
public String getViewEmployeeForm(@ModelAttribute("eInfo") ViewEmployeeFormInfo eInfo, BindingResult result, HttpServletRequest req) {
        if (result.hasErrors()) {
            return "theSameBiewName";
        }
....

BindingResult result
MANDATORY RIGHT AFTER
@ModelAttribute("eInfo") ViewEmployeeFormInfo eInfo in signature parameters

**megahunter** · Jan 23rd, 2013, 02:22 PM

Thanks, I've added that to my code but it does not affect the exception.
Wouldn't I need to add a validator to make this useful though?

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[Spring 3.0.5] form:select causes a java.lang.IllegalStateException

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