Neither BindingResult nor plain target object for bean name available as request attr [duplicate]

Hi Experts, I have this controller code which is throwing the above mentioned error. It was working fine till yesterday, I have no clue what colleague did to this code and today I am seeing the error:

Neither BindingResult nor plain target object for bean name 'sideForm' available as request attribute

Can you please suggest me where to look for this kind of error. Am I making any mistake in POST or GET method declaration or returning something wrong?

Your help is greatly appreciated :)

package com.att.analytics.ui;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import com.si.myworld.business.AdminChart;
import com.si.myworld.business.Chart;
import com.si.myworld.dao.AdminChartSummaryData;
import com.si.myworld.dao.BulletinData;
import com.si.myworld.dao.ChartData;

@RequestMapping("/index.html")
@Controller
public class IndexController {

private static final Logger log = Logger.getLogger(IndexController.class);

/**
 * Called to load the page initially (GET request)
 * 
 * @param model
 * @return
 */
@RequestMapping(method = RequestMethod.GET)
public String getCharts(ModelMap model) {

    Chart chart = new Chart();
    chart.setTimeline("Monthly");
    chart.setStartDt("mm/dd/yyyy");
    chart.setEndDt("mm/dd/yyyy");

    AdminChartSummaryData acsd = new AdminChartSummaryData();
    List<AdminChart> list = acsd.getLandingChartDataList();

    if (list.size() == 4) {
        Chart chart1 = new Chart(list.get(0));
        Chart chart2 = new Chart(list.get(1));
        Chart chart3 = new Chart(list.get(2));
        Chart chart4 = new Chart(list.get(3));
        model.put("chart1", chart1);
        model.put("chart2", chart2);
        model.put("chart3", chart3);
        model.put("chart4", chart4);

        log.info("chart 1>>>>" + chart1);


        ChartData cd = new ChartData();

        String chartOneDatasource = cd.fetchChartDatasourceName(chart1
                .getChartSubgroup());
        String chartTwoDatasource = cd.fetchChartDatasourceName(chart2
                .getChartSubgroup());
        String chartThreeDatasource = cd.fetchChartDatasourceName(chart3
                .getChartSubgroup());
        String chartFourDatasource = cd.fetchChartDatasourceName(chart4
                .getChartSubgroup());

        String breadcrumbOne = chart1.getChartGroup() + ">>"
                + chart1.getChartSubgroup();
        String breadcrumbTwo = chart2.getChartGroup() + ">>"
                + chart2.getChartSubgroup();
        String breadcrumbThree = chart3.getChartGroup() + ">>"
                + chart3.getChartSubgroup();
        String breadcrumbFour = chart4.getChartGroup() + ">>"
                + chart4.getChartSubgroup();


        BulletinData bd = new BulletinData();
        String bulletin = bd.getBulletinData();

        model.put("sideForm", chart);



        model.put("chartOneDatasource", chartOneDatasource);
        model.put("chartTwoDatasource", chartTwoDatasource);
        model.put("chartThreeDatasource", chartThreeDatasource);
        model.put("chartFourDatasource", chartFourDatasource);

        model.put("breadcrumbOne", breadcrumbOne);
        model.put("breadcrumbTwo", breadcrumbTwo);
        model.put("breadcrumbThree", breadcrumbThree);
        model.put("breadcrumbFour", breadcrumbFour);

        model.put("bulletin", bulletin);
    }

    return "land";
}


@RequestMapping(method = RequestMethod.POST)
public String loadCharts(HttpServletRequest request, ModelMap model, @ModelAttribute("sideForm") Chart chart) {

    String from_date = request.getParameter("startDt");
    String to_date = request.getParameter("endDt");

    chart.setStartDt(from_date);
    chart.setEndDt(to_date);

    ChartData cd = new ChartData();

    BulletinData bd = new BulletinData();
    String bulletin = bd.getBulletinData();



    AdminChartSummaryData acsd = new AdminChartSummaryData();
    List<AdminChart> list = acsd.getLandingChartDataList();
    if (list.size() == 4) {
        Chart chart1 = new Chart(list.get(0));
        Chart chart2 = new Chart(list.get(1));
        Chart chart3 = new Chart(list.get(2));
        Chart chart4 = new Chart(list.get(3));
        model.put("chart1", chart1);
        model.put("chart2", chart2);
        model.put("chart3", chart3);
        model.put("chart4", chart4);


        String chartOneDatasource = cd.fetchChartDatasourceName(chart1
                .getChartSubgroup());
        String chartTwoDatasource = cd.fetchChartDatasourceName(chart2
                .getChartSubgroup());
        String chartThreeDatasource = cd.fetchChartDatasourceName(chart3
                .getChartSubgroup());
        String chartFourDatasource = cd.fetchChartDatasourceName(chart4
                .getChartSubgroup());

        model.put("chartOneDatasource", chartOneDatasource);
        model.put("chartTwoDatasource", chartTwoDatasource);
        model.put("chartThreeDatasource", chartThreeDatasource);
        model.put("chartFourDatasource", chartFourDatasource);

        String breadcrumbOne = chart1.getChartGroup() + ">>"
                + chart1.getChartSubgroup();
        String breadcrumbTwo = chart2.getChartGroup() + ">>"
                + chart2.getChartSubgroup();
        String breadcrumbThree = chart3.getChartGroup() + ">>"
                + chart3.getChartSubgroup();
        String breadcrumbFour = chart4.getChartGroup() + ">>"
                + chart4.getChartSubgroup();


        model.put("breadcrumbOne", breadcrumbOne);
        model.put("breadcrumbTwo", breadcrumbTwo);
        model.put("breadcrumbThree", breadcrumbThree);
        model.put("breadcrumbFour", breadcrumbFour);
    }
    return "land";
}


@ModelAttribute("timeline")
public Collection<String> populateTimeline() {
    return Arrays.asList("Daily", "Weekly", "Monthly", "Quarterly",
            "Annually", "12_Month_Rolling");
}
}

This page gets values from a form shown below:

<form:form commandName="sideForm">
<div style="font-weight:bold; color:#000">Timeline</div>


<div style="margin:0 0 5px 0;"><form:select path="timeline" items="${timeline}" id="tm"/></div>

<div class="tofrom">From:</div>

<form:input path="startDt" id="from_date" size="7" maxlength="10" />

<div class="tofrom">To:</div>

<form:input path="endDt" id="to_date" size="7" maxlength="12" />

<input type="submit" value="Update Chart" />

</form:form>

Solution 1:

Make sure that your Spring form mentions the modelAttribute="<Model Name".

Example:

@Controller
@RequestMapping("/greeting.html")
public class GreetingController {

 @ModelAttribute("greeting")
 public Greeting getGreetingObject() {
  return new Greeting();
 }

 /**
  * GET
  * 
  * 
  */
 @RequestMapping(method = RequestMethod.GET)
 public String handleRequest() {
  return "greeting";
 }

 /**
  * POST
  * 
  * 
  */
 @RequestMapping(method = RequestMethod.POST)
 public ModelAndView processSubmit(@ModelAttribute("greeting") Greeting greeting, BindingResult result){
  ModelAndView mv = new ModelAndView();
  mv.addObject("greeting", greeting);  
  return mv;
 }
}

In your JSP :

<form:form  modelAttribute="greeting" method="POST" action="greeting.html">

Solution 2:

Make sure you declare the bean associated with the form in GET method of the associated controller and also add it in the model model.addAttribute("uploadItem", uploadItem); which contains @RequestMapping(method = RequestMethod.GET) annotation.

For example UploadItem.java is associated with myform.jsp and controller is SecureAreaController.java

myform.jsp contains

<form:form action="/securedArea" commandName="uploadItem" enctype="multipart/form-data"></form:form>

MyFormController.java

@RequestMapping("/securedArea")
@Controller
public class SecureAreaController {

@RequestMapping(method = RequestMethod.GET)
public String showForm(Model model) {
            UploadItem uploadItem = new UploadItem(); // declareing

            model.addAttribute("uploadItem", uploadItem); // adding in model
    return "securedArea/upload";
}

}

As you can see I am declaring UploadItem.java in controller GET method.