I have a new item to save via the thymealf form.
I have 3 items, Element1, Element2, Element3. I create the Element3 objects at first.
#Entity
public class Element1 {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
private String foo;
#OneToOne(cascade = CascadeType.ALL)
private Element2 element2;
#OneToMany(mappedBy = "element1",cascade = CascadeType.ALL)
private List<Element3> element3List;
//getter and setter
#Entity
public class Element2 {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
private String foo;
#OneToOne(mappedBy = "element2")
private Element1 element1;
//getter and setter
#Entity
public class Element3 {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
private String foo;
#ManyToOne
private Element1 element1;
//getter and setter
Next I want to create an Element1 object which contains the Element2 object and a list of Element3 objects.
Controller
#Controller
public class Element1Controller {
#GetMapping("/saveElement1")
public String saveWeek(Model model) {
model.addAttribute("element2" , new Element2());
model.addAttribute("element1" , new Element1());
model.addAttribute("element3List" , element3Service.getAllElement3());
return "addElement1";
}
#PostMapping("/addElement1Form")
public String addWeekView(#ModelAttribute ("element1") Element1 element1,
#ModelAttribute ("element2") Element2 element2,
#ModelAttribute ("element3List") List<Element3>
element3List) {
element1.setElement2(element2);
element1.setElement3List(element3List);
element1Service.saveElement1(element1);
return "redirect:/saveElement1";
}
}
Thymeleaf form:
<form class="form" action="#" th:action="#{/addElement1Form}" method="post" >
<div th:object="${element1}" class="col">Enter element1 information
<div class="row">
<p>Foo: <input type="text" th:field="${element1.foo}" class="form-
control"/></p>
</div>
</div>
<div th:object="${element2}" class="col">Enter element2 information
<div class="row">
<p>Foo: <input type="text" th:field="${element2.foo}" class="form-
control"/></p>
</div>
</div>
<div class="col-lg-3" th:object="${element3List}">
<select class="form-control" id="testOrder" name="testOrder">
<option value="">Select Element3</option>
<option th:each="element3 : ${element3List}"
th:value="${element3.id}"
th:text="${element3.foo}"></option>
</select>
<select class="form-control" id="testOrder1" name="testOrder">
<option value="">Select Element3</option>
<option th:each="element3 : ${element3List}"
th:value="${element3.id}"
th:text="${element3.foo}"></option>
</select>
<p><input type="submit" value="Submit" /> <input type="reset" value="Reset" />
</p>
</form>
I can easily create the Element 1 object with the Element2 object inside, but not save a list of Element3 inside Element1. I don't understand what the problem is because in my form I can find all the objects of Element3.So I just want to create an Element1 object, which has as fields an Element2 object and a list of Element3 (for example 2 as in the form).
Thanks in advance for the answers and help.
Related
Spring/Thymeleaf beginner sorry in advance but I have 2 entities Employee and MeetingInfo. Employee has a oneToMany relationship with MeetingInfo so basically an Employee can have many MessageInfo. Using psvm I can add a new Employee with multiple MessageInfo to my database using something like this:
Employee employee1 = new Employee("Employee 1");
MeetingInfo mInfo1 = new MeetingInfo(LocalDate.of(2021, 1, 1), "First Random message");
MeetingInfo mInfo2 = new MeetingInfo(LocalDate.of(2021, 2, 2), "Second Random message");
MeetingInfo mInfo3 = new MeetingInfo(LocalDate.of(2021, 3, 3), "Third Random message");
employee1.getMeetingInfo().add(mInfo1);
employee1.getMeetingInfo().add(mInfo2);
employee1.getMeetingInfo().add(mInfo3);
employeeRepository.save(employee1);
But how can I do this with a form in thymeleaf? I can add just an employee, but cant add a new MeetingInfo object. When I do I get a passException error.
My new_employee.html
<form action="#" th:action="#{/ines/saveEmployee}" th:object="${employee}"
method="POST">
<input type="text" th:field="*{name}"
placeholder="Employee Name" class="form-control mb-4 col-4">
*** so if I remove between here***
<input type="date" th:field="*{meetingInfo.meetingDate}"
placeholder="Message Date" class="form-control mb-4 col-4">
<input type="text" th:field="*{meetingInfo.message}"
placeholder="Message" class="form-control mb-4 col-4">
*** and here***
*** how can I include a MessageInfo object with a new Employee?***
<button type="submit" class="btn btn-info col-2">Save Meeting</button>
</form>
My Controller
#GetMapping("/showNewEmployeeForm")
public String showNewEmployeeForm(Model model) {
Employee employee = new Employee();
model.addAttribute("employee", employee);
return "meeting/new_employee.html";
}
#PostMapping("/saveEmployee")
public String saveEmployee(#ModelAttribute("employee") Employee employee) {
employeeService.saveMessage(employee);
return "redirect:/ines/employees";
}
Employee
#Entity
#Table(name = "employee")
public class Employee {
#Id
#Column(name = "employee_id")
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long employeeId;
#Column(nullable = false)
private String name;
#OneToMany(cascade = CascadeType.ALL)
#JoinColumn(name = "employee_id", referencedColumnName = "employee_id")
private List<MeetingInfo> meetingInfo = new ArrayList<>();
//Constructors, getters and setters
MeetingInfo
#Entity
#Table(name = "meeting_info")
public class MeetingInfo {
#Id
#Column(name = "meeting_id")
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long meetingId;
private String message;
#Column(name = "meeting_date")
private LocalDate meetingDate;
//Constructors, getters and setters
Saving multiple entities with a single request isn't something that you would usually want to do with your Spring Boot app, however, since I understand that this is for practice only, you could do this by using a single DTO object that would hold the information for both entities:
public class EmployeeMeetingDTO {
private String employeeName;
private String meetingMessage;
private LocalDate meetingDate;
}
Your controller could then accept just a single DTO entity from the request:
#PostMapping("/saveEmployee")
public String saveEmployee(#ModelAttribute("employeeDto") EmployeeMeetingDTO employeeDto) {
employeeService.saveMessage(employeeDto);
return "redirect:/ines/employees";
}
And you can separately create both entities in your EmployeeService class. Your Thymeleaf form would then look something like this:
<form action="#" th:action="#{/ines/saveEmployee}" th:object="${employeeDto}"
method="POST">
<input type="text" th:field="*{employeeName}"
placeholder="Employee Name" class="form-control mb-4 col-4">
<input type="date" th:field="*{meetingDate}"
placeholder="Message Date" class="form-control mb-4 col-4">
<input type="text" th:field="*{meetingMessage}"
placeholder="Message" class="form-control mb-4 col-4">
<button type="submit" class="btn btn-info col-2">Save Meeting</button>
</form>
While run spring boot project, got error in home page Invalid property 'district' of bean class.
I know why this error is coming because district is property of child entity and i can pass parent entity from Home()method in controller. I could pass Person entity in model in Home() method. but district and city property is from Address entity I am working with OneToOne relationship mapping.
My question are below:
Can we get two entity together in th:object in thymeleaf
Can we send Address and Person entity together using Model from controller to view
Stacktrace:
Caused by: org.springframework.beans.NotReadablePropertyException: Invalid property 'district' of bean class [com.rest.RestApiPojo.Entity.Person]: Bean property 'district' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?
Here down is my code:
Entity
#Entity
#Table(name = "person_master")
public class Person {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Long p_id;
private String name;
private String surname;
#OneToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
private Address address;
// getter setter
}
#Entity
#Table(name = "address_master")
public class Address {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Long a_id;
private String district;
private String city;
#OneToOne(cascade = CascadeType.ALL, mappedBy = "address")
#JoinColumn(name = "p_id")
private Person person;
// getter setter
}
service
#Override
public Person addPersonAddress(Person person) {
return personRepo.save(person);
}
controller
#RequestMapping(value = "/", method = RequestMethod.GET)
public String Home(Model mdl)
{
mdl.addAttribute("persons", new Person());
return "register";
}
#RequestMapping(value = "/personaddress", method = RequestMethod.POST)
public String addPersonAddress(Model mdl, #ModelAttribute("person") Person person, HttpServletRequest req)
{
Address address = person.getAddress(); // get reference of person from parent table and store in child table
address.setDistrict(req.getParameter("district"));
address.setCity(req.getParameter("city"));
address.setPerson(person);
pojoService.addPersonAddress(person);
return "listofperson";
}
Thymeleaf
<form th:action="#{/personaddress}" th:object="${persons}" method="post">
<div class="container">
<h1 style="text-align: center">Add Person</h1>
<div class="row">
<div class="col-sm-12">
<div class="mb-3">
<label for="exampleFormControlInput1" class="form-label">Person name</label>
<input type="text" class="form-control" name="name" th:field="*{name}">
</div>
<div class="mb-3">
<label for="exampleFormControlInput1" class="form-label">Person surname</label>
<input type="text" class="form-control" name="surname" th:field="*{surname}">
</div>
<div class="mb-3">
<label for="exampleFormControlInput1" class="form-label">District</label>
<input type="text" class="form-control" name="district" th:field="*{district}">
</div>
<div class="mb-3">
<label for="exampleFormControlInput1" class="form-label">City</label>
<input type="text" class="form-control" name="city" th:field="*{city}">
</div>
<input class="btn btn-primary" type="submit" value="Submit">
</div>
</div>
</div>
</form>
Two entities are not required as they have already been mapped in the person class just write 'address.district' and 'address.city' in the thymeleaf, you will get it
This is regarding boilerplate code. you could add #Data to the class coming from Lombok library.
If you are not using lombok add setter and getter
public String getDistrict() {
return district;
}
public void setDistrict(String district) {
this.district= district;
}
How can I populate a dropdown list based on selections of other dropdown lists?
I have a Unit class, a Size class and a City class. The user must first select a country from a dropdown list of countries, the municipalities list will then display only the municipalities in that country, after that the user must select a city size, and at the end of it all, the user must select a city from a list of cities which are of the selected size, and belong to the selected municipality and country.
My code:
Unit.java
public class Unit {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(nullable=false)
private String name
#ManyToOne
#JoinColumn
#ToString.Exclude
private UnitType unitType;
#OneToOne
#JoinColumn
private Unit unit;
#OneToMany(mappedBy = "unit", cascade = CascadeType.ALL)
private Set<City> cities;
}
UnitType.java
public class UnitType {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(nullable=false)
#Enumerated(EnumType.STRING)
private UnitName uName;
#OneToMany(mappedBy = "unitType", cascade = CascadeType.ALL)
private Set<Unit> units;
public enum UnitName {
COUNTY, MUNICIPALITY
}
}
CitySize.java
public class CitySize {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(name="naziv", nullable=false)
#Enumerated(EnumType.STRING)
private Size name;
#OneToMany(mappedBy = "citySize", cascade = CascadeType.ALL)
private Set<City> sizes;
public enum Size {
SMALL, MEDIUM, LARGE
}
}
City.java
public class City {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(nullable=false)
private String name;
#ManyToOne
#JoinColumn
#ToString.Exclude
private CitySize citySize;
#ManyToOne
#JoinColumn
#ToString.Exclude
private Unit unit;
#OneToMany(mappedBy = "city", cascade = CascadeType.ALL)
private Set<Event> events;
}
Event.java
public class Event {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(nullable=false)
private String name;
#Column(nullable=false)
private LocalDateTime time;
#ManyToOne
#JoinColumn
#ToString.Exclude
private City city;
}
EventController.java
public class EventController {
....
#GetMapping("/citySearch")
public String citySearch(Model model) {
model.addAttribute("event", new Event());
model.addAttribute("unit", new Unit());
model.addAttribute("citySize", new CitySize());
model.addAttribute("counties", unitRepository.findByUnitTypeId(50001L));
model.addAttribute("municipalities", unitRepository.findByUnitTypeId(50002L));
model.addAttribute("sizes", CitySize.Size.values());
model.addAttribute("cities", cityRepository.findAll());
return "citySearch";
}
#PostMapping("/citySearch")
public String citySearch(Event event, Model model, City city, Unit unit,
CitySize citySize) {
List<Event> foundEvents = eventRepository.findByCity(city);
model.addAttribute("unit", new Unit());
model.addAttribute("citySize", new CitySize());
model.addAttribute("counties", unitRepository.findByUnitTypeId(50001L));
model.addAttribute("municipalities", unitRepository.findByUnitTypeId(50002L));
model.addAttribute("sizes", CitySize.Size.values());
model.addAttribute("cities", cityRepository.findAll());
model.addAttribute("foundEvents", foundEvents);
return "citySearch";
}
}
citySearch.html
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" th:href="#{/css/style.css}" >
<title>City search</title>
</head>
<body>
<h1>Event search by city</h1>
<form th:object="${unit}" method="post">
<div class="form-group">
<label for="unit">County: </label>
<select th:id="countyOption" th:field="*{unit}">
<option value="" >choose counties</option>
<option th:each="county : ${counties}" th:value="${county.id}" th:text="${county.name}"></option>
</select>
</div>
<div class="form-group">
<label for="unit">Municipality: </label>
<select th:id="municipalityOption" th:field="*{unit}">
<option value="" >choose municipilaties</option>
<option th:each="municipality : ${municipilaties}" th:value="${municipality.id}" th:text="${municipality.name}"></option>
</select>
</div>
</form>
<form th:object="${citySize}" method="post">
<div class="form-group">
<label for="name">City size: </label>
<select th:field="*{name}">
<option value="" >choose a city size</option>
<option th:each="name : ${sizes}" th:value="${id}" th:text="${name}"></option>
</select>
</div>
</form>
<form th:object="${event}" method="post">
<div class="form-group">
<label for="city">City: </label>
<select th:field="*{city}">
<option value="" >choose cities</option>
<option th:each="city : ${cities}" th:value="${city.id}" th:text="${city.name}"></option>
</select>
</div>
<input type="submit" th:value="Search">
</form>
<table>
<tr>
<th>Name</th>
<th>City</th>
<th>Time</th>
</tr>
<tr th:each="event : ${foundEvents}">
<td><span th:text="${event.name}" >EVENT.NAME</span></td>
<td><span th:text="${event.city.name}" >CITY.NAME</span></td>
<td><span th:text="${#temporals.format(event.time, 'dd.MM.yyyy. HH:mm')}" >EVENT.TIME</span></td>
</tr>
</table>
<p><a th:href="#{/search}">Return</a></p>
</body>
</html>
So far, my web search provided information that this can't be done by using only Spring boot and Thymeleaf, only with jQuery. Since I don't know jQuery, I would require some instructions on how to write and implement the method in jQuery. Also, I don't have a WebConfig.java class, since I had no need for it so far in my app, but if I need it now, what does it have to contain?
Spring Boot and Thymeleaf can't do anything client-side, but you can still achieve what you are trying to do without Javascript / JQuery:
You can submit the selected country to the backend, where you calculate the possible municipalities for that country, which you can add to the model and only display those (Or disable all other options). However, you will have to do that for every step that limits the options, that means reloading the page everytime, which can be painful to use.
If you want to accomplish the same without reloading the page, you will have to resort to some client-side code - that means Javascript / JQuery.
While working on a spring MVC based project I am trying to bind data from JSP to model.
While the string data is binding perfectly for some reason the number data is not binding at all.
I have checked the parameter name it's same in POJO and JSP
Below is my controller code
#RequestMapping(value = "/investor-signup", method = RequestMethod.GET)
public String registration(Model model) {
model.addAttribute("investor", new InvestorRegister());
return "investor-signup";
}
#RequestMapping(value = "/investor-signup", method = RequestMethod.POST)
public String registration(#ModelAttribute("investor") InvestorRegister investor, BindingResult bindingResult, Model model) {
System.out.println(investor.getFULL_NAME());
System.out.println(investor.getMOB_NO());
investorRegisterService.save(investor);
return "redirect:/login";
}
Below is my JSP code
<form:form method="post" action="investor-signup"
modelAttribute="investor" id="contact-form"
style="padding-top: 40px;" role="form" class="formcss" align="left">
<div class="controls">
<div class="row">
<div class="col-md-12">
<div class="form-group">
<div class="col-md-2 ">
<label for="user_name">Full Name *</label>
</div>
<div class="col-md-10 p0">
<input id="user_name" type="text" name="FULL_NAME" class="form-control" required="required" data-error="Full Name is required.">
</div>
<div class="help-block with-errors"></div>
</div>
</div>
<div class="col-md-12">
<div class="form-group">
<div class="col-md-2">
<label for="user_mobile">Mobile *</label>
</div>
<div class="col-md-6 ">
<input id="user_mobile" type="number" name="MOB_NO" class="form-control" required="required" data-error="Mobile No is required.">
</div>
<div class="help-block with-errors"></div>
</div>
</div>
<div class="col-md-12" align="center">
<input type="submit" class="btn btn-success btn-send" value="Register">
</div>
</div>
</form:form>
Below is my model POJO
#Entity
#Table(name = "InvestorRegister")
public class InvestorRegister {
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "SEQ_GEN")
#SequenceGenerator(name = "SEQ_GEN", sequenceName = "IID_SEQ")
#Column(name = "ID")
private int ID;
#NotEmpty
#Column(name = "FULL_NAME")
private String FULL_NAME;
#Column(name = "MOB_NO")
private int MOB_NO;
public int getID() {
return ID;
}
public void setID(int iD) {
ID = iD;
}
public String getFULL_NAME() {
return FULL_NAME;
}
public void setFULL_NAME(String fULL_NAME) {
FULL_NAME = fULL_NAME;
}
public int getMOB_NO() {
return MOB_NO;
}
public void setMOB_NO(int mOB_NO) {
MOB_NO = mOB_NO;
}
}
While the string data is binding perfectly for some reason the number data is not binding at all
I have checked the parameter name it's same in POJO and JSP
Any help is appreciated.
#abhi314, Have you just tried by extracting field separately ?
I mean have you tried any of these just to check value comes from view side or not?
public String registration(#RequestParam("FULL_NAME") String FULL_NAME, #RequestParam("MOB_NO") int MOB_NO) {
//check value comes or not
}
OR
public String registration(#RequestBody InvestorRegister ir) {
//check value comes or not
}
Please do let me know if you get value or not by checking this way
You need to use Wrapper Integer instead of int.
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "SEQ_GEN")
#SequenceGenerator(name = "SEQ_GEN", sequenceName = "IID_SEQ")
#Column(name = "ID")
private Integer ID;
Also I would suggest to use naming convention standards. Instead of ID declare id or most preferred as investorRegisterId.
After changing from int to Integer please regenerate the getter/setters for the same.
Your actual issue is failing on the concept of Java auto-boxing/unboxing.
I have Map of CategoryAttribute object in Category model class .Due to Some reason categoryAttributes map is not able bind with <form:input> tag of Spring Mvc in jsp, however category object is available to jsp page. I need to catch input of Category Attributes properties name and value to controller and persist to database how would I do that. I have tried but <form:input> tag is not converting into input field please have a look where i have done mistake thanks for helping.
Category Model class
#Entity
#Inheritance(strategy = InheritanceType.JOINED)
#Table(name = "CATEGORY")
public class Category implements Serializable {
#Id
#Column(name = "CATEGORY_ID")
protected Long id;
#Column(name = "NAME", nullable = false)
#Index(name = "CATEGORY_NAME_INDEX", columnNames = { "NAME" })
protected String name;
#OneToMany(mappedBy = "category", targetEntity = CategoryAttribute.class, cascade = { CascadeType.ALL }, orphanRemoval = true)
#MapKey(name = "name")
#BatchSize(size = 50)
protected Map<String, CategoryAttribute> categoryAttributes = new HashMap<String, CategoryAttribute>();
}
CategoryAttribute class
#Entity
#Inheritance(strategy = InheritanceType.JOINED)
#Table(name = "CATEGORY_ATTRIBUTE")
public class CategoryAttribute implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue
#Column(name = "CATEGORY_ATTRIBUTE_ID")
protected Long id;
#Column(name = "NAME", nullable = false)
#Index(name = "CATEGORYATTRIBUTE_NAME_INDEX", columnNames = { "NAME" })
protected String name;
#Column(name = "VALUE")
protected String value;
#ManyToOne(targetEntity = Category.class, optional = false)
#JoinColumn(name = "CATEGORY_ID")
#Index(name = "CATEGORYATTRIBUTE_INDEX", columnNames = { "CATEGORY_ID" })
protected Category category;
}
Controller
#Controller
public class CategoryController {
private static final Logger logger = Logger
.getLogger(CategoryController.class);
#Autowired
private CatalogItemService catalogItemService;
public CatalogItemService getCatalogItemService() {
return catalogItemService;
}
public void setCatalogItemService(CatalogItemService catalogItemService) {
this.catalogItemService = catalogItemService;
}
#RequestMapping(value = "/redirectToForm", method = RequestMethod.GET)
public String retrieveForm(#ModelAttribute Category category) {
return "category";
}
//this function is responsible for sending the category object
#RequestMapping(value = "/gencategory", method = RequestMethod.GET)
public String genCategoryList(Model model, #RequestParam("id") String id) {
Category category = catalogItemService.findCategoryById(Long
.parseLong(id));
List<Category> categories = catalogItemService.findAllCategories();
List<CategoryMapper> childCategories = category
.getAllChildCategoryMappers();
List<CategoryMapper> parentCategories = category.getAllParentCategoryMappers();
model.addAttribute("categoryList", categories);
model.addAttribute("childCategoryList", childCategories);
model.addAttribute("parentCategoryList", parentCategories);
List<String> inventoryList = new ArrayList<String>();
inventoryList.add("ALWAYS_AVAILABLE");
inventoryList.add("UNAVAILABLE");
inventoryList.add("CHECK QUANTITY");
List<String> fulfillmentList = new ArrayList<String>();
fulfillmentList.add("Digital");
fulfillmentList.add("Gift card");
fulfillmentList.add("Pickup");
fulfillmentList.add("Physical Pickup or Ship");
fulfillmentList.add("Physical Ship");
model.addAttribute("category", category);
model.addAttribute("inventorIs", inventoryList);
model.addAttribute("fulfillmentIs", fulfillmentList);
return "generalcategory";
}
#RequestMapping(value = "/saveCategory", method = RequestMethod.POST)
public String saveCategory(#ModelAttribute("category") Category category,
BindingResult bindingResult,
#ModelAttribute("hiddenFormValue") String hiddenFormValue,
Model model) {
Category defaultParentCategory = catalogItemService
.findCategoryById(Long.parseLong(hiddenFormValue));
category.setDefaultParentCategory(defaultParentCategory);
List<Category> categories = catalogItemService.findAllCategories();
model.addAttribute("categoryList", categories);
category.setId(29965L);
catalogItemService.saveCategory(category);
return "generalcategory";
}
#InitBinder
public void customDateBinder(WebDataBinder binder) {
SimpleDateFormat dateFormat = new SimpleDateFormat(
"yyyy-MM-dd hh:mm:ss");
binder.registerCustomEditor(Date.class, "activeStartDate",
new CustomDateEditor(dateFormat, false));
binder.registerCustomEditor(Date.class, "activeEndDate",
new CustomDateEditor(dateFormat, false));
}
}
generalcategory.jsp
<form:form action="saveCategory" method="post" id="categoryForm" modelAttribute="category">
<c:set var="myRequestModel" value="${category}" scope="request" />
<c:out value="${myRequestModel.categoryAttributes}"></c:out>
<jsp:include page="categoryattributemodal.jsp">
<jsp:param name="category" value="${myRequestModel}" />
</jsp:include>
</form:form>
CategoryAttribute.jsp page where i am trying to map the map object of category class
<div class="modal fade" id="modalCategoryAttribute" tabindex="-1"
role="dialog" aria-labelledby="myModelCattLabel" aria-hidden="true">
<div class="modal-dialog" aria-hidden="true">
<div class="modal-content">
<div class="modal-body">
<div class="form-group">
<label for="key">Key*:</label>
<div class='input-group date' id='name'>
<form:input path="category.categoryAttribute['name']" cssClass="form-control" />
<!-- <input type="text" class="form-control" /> -->
</div>
</div>
<div class="form-group">
<label for="key">Attribute Value*:</label>
<div class='input-group date' id='attributeValue'>
<form:input path="category.categoryAttributes['value']" cssClass="form-control" />
<!-- <input type="text" class="form-control" /> -->
</div>
</div>
</div>
<div class="modal-footer">
<span class="text-muted"><input type="button" id="addCategoryAttrButton"
class="btn btn-primary" value="Save" /></span>
</div>
</div>
</div>
</div>
This is the page where input field is not coming when try to bind map object of category class
First you need to generate getters and Setters to all member variables.
Second : In form:input should bind to member variable only. So please change
<form:input path="category.categoryAttributes['value']" cssClass="form-ontrol" />
to
<form:input path="category.categoryAttributes['Key of HashMap'].memberVariableInCategoryAttribute" cssClass="form-ontrol" />