How to submit a composite object using form in struts2

Question

I have the following classes

public class Address {
  private String unit;
  private String street;
  ... getter and setters go here....
}

public class Person {
   private String name;
   private Address address;
   public Person(){
      address = new Address();
   }
   ... getter and setters go here...
 }

public class Employee extends Person {
    ... 
}

For example I can access the unit filed of address class using the following code

 <s:form method="POST" action="updateEmployee">
    <s:textfield name ="unit" label="Unit" value="%{employee.address.unit}" />
    <s:textfield name ="name" label="Name" value="%{employee.name}" />
 </s:form>

but when I submit the form it sends all the fields except the fields of address class. It shows the unit is null.

 @Action
 public class myaction implements ModelDriven {

 Employee emp = new Employee();

 public String updateEmployee(){
    System.out.println("Unit is" + employee.getAddress().getUnit();
    System.out.println("Unit is" + employee.getName();
    return "SUCCESS";
 }

 public Employee getEmployee() {
    return employee;
}

public void setEmployee(Employee employee) {
    this.employee = employee;
}

@Override
public Object getModel() {
    return employee;
}

can u show the actual form - what HTML elements / struts tag u r using ? — user1428716, Feb 28 '13 at 03:05
why would label be part of your Value Stack when you submit it ? — user1428716, Feb 28 '13 at 04:12
because it shows the value of each field and allows users to change the values and submit the form to update the values on backend. — Daniel Morgan, Feb 28 '13 at 04:19
@user1428716 is right, you must specify the path in the `name` attribute. You can do a lot more complex things with that, see: http://stackoverflow.com/questions/15006868/struts2-updating-the-values-of-a-list-of-objects-inside-a-map P.S: your employee variable is missing... :D — Andrea Ligios, Feb 28 '13 at 12:37
@AndreaLigios what do you mean by path would you give me an example ? — Daniel Morgan, Feb 28 '13 at 22:51

score 1 · Accepted Answer · answered Feb 28 '13 at 12:07

1

Try

<s:textfield name ="employee.address.unit" label="Unit" value="%{employee.address.unit}" />
<s:textfield name ="employee.name" label="Name" value="%{employee.name}" />

answered Feb 28 '13 at 12:07

user497087

1,561
3
24
41

How to submit a composite object using form in struts2

1 Answers1