how do I pass the selected parameters in the checkbox from one jsp page to another jsp page? - spring

Question

I have to make the switch to selected values ​​within some checkboxes in a jsp page but after the selection and after pressing the "Send" button, I generate this error with the following description: HTTP Status 400: The request sent by the client was syntactically incorrect.
Where am I wrong?
TaskController.java
#RequestMapping(value="/newTask", method = RequestMethod.GET)
public String task(#ModelAttribute Task task, Model model) {
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
String s = auth.getName();
Student student = studentFacade.retrieveUser(s);
List<Job> jobs = new ArrayList<>();
if(!(auth instanceof AnonymousAuthenticationToken)) {
jobs = facadeJob.retriveAlljobs();
model.addAttribute("job", getMathRandomList(jobs));
model.addAttribute("image", imageFacade.retriveAllImages());
List<Image> img = imageFacade.retriveAllImages();
task.setImages(img);
task.setStudent(student);
taskFacade.addTask(task);
List<Long> images = new ArrayList<>();
for(Image i : img)
images.add(i.getId());
model.addAttribute("images", images);
}
return "users/newTask";
}
#RequestMapping(value="/taskRecap", method = RequestMethod.POST)
public String taskRecap(#ModelAttribute Task task, Model model,BindingResult result) {
model.addAttribute("task", task);
return "users/taskRecap";
}
newTask.jsp
<form:form method="post" action="taskRecap" modelAttribute="task" name="form">
<form:checkboxes path="images" items="${images}" value="yes" />
<td><input type="submit" value="Send" /></td>
</form:form>
taskRecap.jsp Immages
<c:forEach var="image" items="${task.images}">
<c:out value="${image.id}" />
</c:forEach>
Task.java
#Entity
public class Task {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
#ManyToOne
private Student student;
#ManyToMany
List<Image> images;
public Student getStudent() {
return student;
}
public void setStudent(Student student) {
this.student = student;
}
public Task() {
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Task(Long id, Student student, List<Image> images) {
super();
this.id = id;
this.student = student;
this.images = images;
}
public List<Image> getImages() {
return images;
}
public void setImages(List<Image> images) {
this.images = images;
}
}

Answer 1

Using Query parameter
<a href="edit.jsp?Name=${user.name}" />
Using Hidden variable .
<form method="post" action="update.jsp">
<input type="hidden" name="Name" value="${user.id}">
if you use either of the first 2 methods you can access your value like this:
String userid = session.getParameter("Name");
you can send Using Session object.
session.setAttribute("Name", UserName);
These values will now be available from any jsp as long as your session is still active.
if you use the third option you can access your value like this:
String userid = session.getAttribute("Name");