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How to call a link with requestparameter inside loop

I want to reference an index in a URL,
for the controller shown below,
such that when the button for first item in the list is clicked,
the corresponding URL to be called is:
/product/detailpage/index/0 ->for the first item
/product/detailpage/index/2 ->for the third item
and so on
How do I modify the code and the <form in code_1 section to satisfy these requirements?
HTML:
<tbody>
<tr th:each="product, iter : ${list}">
<td th:text="*{product.id}"></td>
<td th:text="*{product.name}"></td>
<td style="text-align: right;">
<form action="#{/product/detailpage/index/(idx=${iter.index})}">
<input type="submit" value="Details" />
</form>
</td>
</tr>
</tbody>
Java:
#Controller
#RequestMapping("/product/detailpage")
public class ProductDetailPageController
{
/**
* It is the developer's responsibility to provide code that handles
* the concatenation the correct index to this AttributeName,
* so as to get the the corresponding value from the Model data structure.
* For example, productDetailAtIndex_0,
* productDetailAtIndex_1,
* productDetailAtIndex_n
*/
public static final String sProductDetailPageAttrName = "productDetailAtIndex_";
#Autowired
private ProductService productService;
/**
* Solution-1
*/
#RequestMapping(value = "/index/{idx}", method = RequestMethod.GET)
#ResponseBody

You want to see /product/detailpage/index/0 instead of /product/detailpage/index/?idx=0? You just need to add a placeholder that matches your chosen variable name. Like this:
th:action="#{/product/detailpage/index/{idx}(idx=${iter.index})}"
or for a url
th:url="#{/product/detailpage/index/{idx}(idx=${iter.index})}"

#ModelAttribute is returning null values with thymeleaf

After days of research I have trouble finding a solution for my controller methods. I have two controller methods that seem to be problematic. The savings method is saving null values. I have no clue how to bind the values, that are being typed into the field, to the list /all. One for creating values with input fields and another to save the input values and update a list /all. I want to get the values that I put into the fields of the form and have a updated list /all, with the new values. Note that I am only trying to save two of eleven attributes of the entire class. The class has double values and true/false. Those are being saved into db, except for the important String values. Thanks ahead for the help!
First method:
#GetMapping("/create")
public String showCreateForm(Model model, Branch branch) {
List<Branch> branches = new ArrayList<>();
BranchCreationDto branchesForm = new BranchCreationDto(branches);
for (int i = 1; i <= 1; i++) {
// the input field
branchesForm.addBranch(new Branch());
}
model.addAttribute("form", branchesForm);
return "branches/create";
}
This method is has one input field, where values of Branch can be set.
Second method:
#PostMapping("/saving")
public String saveBranches(#ModelAttribute BranchCreationDto form, Model model, Branch branch) {
// saves null but needs to be saving the values that are being typed into the field
this.branchRepository.saveAll(form.getBranches());
model.addAttribute("branches", branchRepository.findAll());
return "redirect:/all";
}
This method appears to have the problem at
this.branchRepository.saveAll(form.getBranches());
It is returning null values. I have already tried putting branch.getName(), branch.getType() into the parameter. This does not work.
With the method /all the programm is returning the list.
#GetMapping("/all")
public String showAll(Model model) {
model.addAttribute("branches", branchRepository.findAll());
return "branches/all";
}
This is my wrapper class
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
public class BranchCreationDto {
#Autowired
private List<Branch> branches;
public BranchCreationDto(List<Branch> branches) {
this.branches = branches;
}
public BranchCreationDto() {
}
public void addBranch(Branch branch) {
this.branches.add(branch);
}
public List<Branch> getBranches() {
return branches;
}
public void setBranches(List<Branch> branches) {
this.branches = branches;
}
}
And this is the form
<body>
<!-- Save -->
<form action="#" th:action="#{saving}" th:object="${form}"
method="post">
<fieldset>
<input type="submit" id="submitButton" th:value="Save"> <input
type="reset" id="resetButton" name="reset" th:value="Reset" />
<table>
<thead>
<tr>
<th>Branch</th>
<th>Type</th>
</tr>
</thead>
<tbody>
<tr th:each="branch, itemStat : *{branches}">
<td><input th:field="*{branches[__${itemStat.index}__].branch}" /></td>
<td><input th:field="*{branches[__${itemStat.index}__].type}" /></td>
</tr>
</tbody>
</table>
</fieldset>
</form>

You are doing wrong ,value do not pass from controller to thyme leaf by this way.I ll give you one example.
Example:
Controller:
Model and View model =new Model and View();
model .put ("branches", branch Repository.find All());
return model;
Thyme leaf:
<input id="branches" type="hidden" t h:value="${branches}" />
Now on your value is pass to id branches.

Just add the field as a hidden input and the thymeleaf will send your changes:
<input type="hidden" th:field="*{branches}"/>

How to submit a list of checkmark values into a form in Thymeleaf?

I am trying to create a table that displays a list of all logs that have been added. In addition to displaying the info I wanted to have another column of checkboxes that when clicked would allow me to delete them with the corresponding delete button.
The issue that I am having is that I am unable to put the values from my checkboxes into the array of Longs. I also want to keep the functionality of my table as it displays correctly.
For my table I have the following code:
<form method="post" th:action="#{/projects/log/delete/}" th:object="${deleteForm}">
<div th:each="log : ${allLogs}" class="row">
<tbody>
<tr class="active">
<td>
<input type="checkbox" th:field="*{logIds}" th:value="${log.id}" />
</td>
<td th:text="${log.teamUsed}"></td>
<td th:text="${log.opponentStarters}"></td>
<td th:text="${log.opponentOthers}"></td>
<td th:text="${log.myStarters}"></td>
<td th:text="${log.myOthers}"></td>
<td th:text="${log.result}"></td>
</tr>
</tbody>
</div>
<button type="submit" id="deleteButton" class="hidden"></button>
</form>
The form that I am trying to place the checkbox values into is: (log.id is a long)
public class LogDeleteForm {
private List<Long> logIds = new ArrayList<>();
public List<Long> getLogIds() {
return logIds;
}
public void setLogIds(List<Long> logIds) {
this.logIds = logIds;
}
}
In my controller I have the following setup for my view:
#RequestMapping(value = "pokemon_log", method = RequestMethod.GET)
public String view(Model model) {
model.addAttribute("addForm", new logForm());
model.addAttribute("deleteForm", new logDeleteForm());
model.addAttribute("allLogs", logService.getAllLogs());
return "log";
}
I am able to implement the deletion fine I am just unable to get the Ids that I would like to delete. How can I get the checkbox values placed into the list of longs?

Turns out that my issue was in my deleteLogs method:
#RequestMapping(value = "/log/delete", method = RequestMethod.POST, params = "delete")
public String deleteLogs(#ModelAttribute("deleteForm") logDeleteForm deleteForm) {
List<Long> formIds = deleteForm.getLogIds();
if (formIds == null || formIds.size() == 0) {
return "redirect:/projects/log";
}
for (Long id : formIds) {
logService.deleteLog(id);
}
return "redirect:/projects/log";
}
My redirects were both "redirect:/log" instead of "redirect:/projects/log"
Also my button was missing name="delete" because it was unable to qualify as a submit with a delete param.

How can I manage a multidimensional array with Struts Form

I'm using Apache Struts 1.3 to render a grid, whitch is a html form embebed in a .jsp. Something like
<html:form action="/MyController.do?action=processForm">
<html:text property="taxation[0][0]" value="" styleClass="gridInputs"></html:text>
<html:text property="taxation[0][1]" value="" styleClass="gridInputs"></html:text>
...
<html:text property="taxation[10][10]" value="" styleClass="gridInputs"></html:text>
MyController is associated to an ActionForm:
public class MyForm extends ActionForm{
protected String taxation[][]= new String [10][10];
public String[] getTaxation() {
return taxation;
}
public void setTaxation(String[][] taxation) {
this.taxation = taxation;
}
The problem arise when I try to retrieve the information submitted by the form. Whithin MyController.class I've a simple dispatcher action
public class MyController extends DispatchAction {
public ActionForward processForm(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
MyForm myform = (MyForm) form;
// Here i can use the getter method to retrieve an array, but
// myform is already wrong populated from struts
}
return mapping.findForward("stage2");
}
I know I can use a Vector (unidimensional array) and It works just fine, but regrettably I need to follow some specs (and the specs force me to use the class MyForm with a 10x10 matrix...). How would be the right way to populated a two dimensional array using struts?
Thank you for the help!

Struts does not support filling of multidimensional array in Form bean. However, it does handle uni-dimensional array of an object. So as a work around if you can create a class (say MatrixRow) which itself contains an Uni-dimensional array and then you can create an Uni-dimensional array of that object in the form bean. Your new class will be look like
public class MatrixRow {
private String matrixCol[] = new String[10];
/**
* #return the matrixCol
*/
public String[] getMatrixCol() {
return matrixCol;
}
/**
* #param matrixCol the matrixCol to set
*/
public void setMatrixCol(String[] matrixCol) {
this.matrixCol = matrixCol;
}
}
Then in your form bean
private MatrixRow[] arrMatrix = new MatrixRow[10];
/**
* #return the arrMatrix
*/
public MatrixRow[] getArrMatrix() {
return arrMatrix;
}
/**
* #param arrMatrix the arrMatrix to set
*/
public void setArrMatrix(MatrixRow[] arrMatrix) {
this.arrMatrix = arrMatrix;
}
and In your JSP, you can use it something like
<html:form action="biArrayTestAction.do">
<table cellpadding="0" cellspacing="0" width="100%">
<logic:iterate id="matrixRows" name="biArrayTestForm"
property="arrMatrix" indexId="sno"
type="logic.MatrixRow" >
<tr>
<td><bean:write name="sno"/></td>
<logic:iterate id="matrixCol" name="matrixRows" property="matrixCol" indexId = "colNo">
<td>
<input type="text" name="arrMatrix[<%=sno %>].matrixCol[<%=colNo %>]">
</td>
</logic:iterate>
</tr>
</logic:iterate>
<tr>
<td align="center" valign="top" colspan="2">
</td>
</tr>
<tr>
<td align="center" valign="top" colspan="2">
<html:submit property="command" value="Test"></html:submit>
</td>
</tr>
</table>
When you submit that form you will get all columns of MatrixRow object filled with the values.
I hope this will help you. I don't find any other way of using multidimensional array in Struts1.

Form binding a HashMap using annotation based controller in Spring 2.5

I have been hitting a brick wall with this problem for some time and no amount of searching and reading has turned up an answer. I have posted on the Spring forums, but to no avail. Maybe someone here can help?
I have a bean containing a HashMap which I have bound to form using the Spring:form taglib and Spring:bind. Binding to the view works perfectly, but upon submitting the form and handling with an annotation based controller the binding does not appear to work correctly. I get no exceptions, but the HashMap is not populated. Here is my setup:
The JSP:
<form:form method="post" action="updateUserPermissions" modelAttribute="wsPermissions" >
<table>
<tr class="head">
<td>Workspace</td>
<td>Read?</td>
<td>Write?</td>
<td>Manage?</td>
</tr>
<c:forEach var="ws" varStatus="wsItem" items="${selectedUserWSs}">
<c:set var="wsURI" value="'${ws.uri}'"/>
<tr>
<td>${ws.kbInfo.name} # ${ws.community.name}</td>
<td>
<spring:bind path="wsPermissions.map[${ws.uri}].read">
<input type="checkbox" <c:if test="${status.value}">checked</c:if> disabled="disabled"/>
</spring:bind>
</td>
<td>
<spring:bind path="wsPermissions.map[${ws.uri}].write">
<input type="checkbox" <c:if test="${status.value}">checked</c:if>/>
</spring:bind>
</td>
<td>
<spring:bind path="wsPermissions.map[${ws.uri}].manage">
<input type="checkbox" <c:if test="${status.value}">checked</c:if>/>
</spring:bind>
</td>
<td>[Remove]</td>
</tr>
</c:forEach>
</table>
<input type="hidden" name="userid" value="${selectedUser.email}" />
<input type="submit" value="Update user permissions" />
</form:form>
This displays fine, binding works, the checkboxes show the correct initial values. Form submission is then handled by this controller method:
#RequestMapping
public String updateUserPermissions(#ModelAttribute(value="wsPermissions") WorkspacePermissionMap wsPermissions,
#RequestParam String userid,
HttpServletRequest request, ModelMap modelMap){
// code to update permissions here.....
LOG.debug(wsPermissions.getMap().size());
//the above prints zero
return "redirect:editUser?id="+userid;
}
Debugging the controller method shows that HashMap is empty.
Here is the code for WorkspacePermissionMap:
public class WorkspacePermissionMap {
private Map<String, WorkspacePermission> map = new HashMap<String, WorkspacePermission>();
/**
* #param map the map to set
*/
public void setMap(Map<String, WorkspacePermission> map) {
this.map = map;
}
/**
* #return the map
*/
public Map<String, WorkspacePermission> getMap() {
return map;
}
}
and for WorkspacePermission:
public class WorkspacePermission {
private boolean read = false;
private boolean write = false;
private boolean manage = false;
/**
* #return the write
*/
public boolean isWrite() {
return write;
}
/**
* #param write the write to set
*/
public void setWrite(boolean write) {
this.write = write;
if (write){
setRead(write);
} else {
setManage(write);
}
}
/**
* #return the moderate
*/
public boolean isManage() {
return manage;
}
/**
* #param moderate the moderate to set
*/
public void setManage(boolean moderate) {
this.manage = moderate;
if (moderate){
setWrite(moderate);
setRead(moderate);
}
}
/**
* #param read the read to set
*/
public void setRead(boolean read) {
this.read = read;
if (!read){
setWrite(read);
setManage(read);
}
}
/**
* #return the read
*/
public boolean isRead() {
return read;
}
}
Can anybody please point out where I'm going wrong? Am I barking up completely the wrong tree, or have I made a stupid error?
Thank you for your help,
Chris

There's definitely some weirdness on the jsp path expressions needed for this.
I'm using hard coded values:
applicationDetails['first_name']
or for your example:
wsPermissions.map['hardcodeduri'].read
These work fine for me.
My advice is to try it first hardcoded and then see if you can alter this to use the dynamic variable.

How is that your HTML checkbox element has no name or value attribute on it? Spring isn't supposed to do 'all' the magic for you ;)