将值从jsp传递给Action for java.util.Set

Question

I want to set values for Set elements of login from JSP .

JSP page:

  <form action="Registered" method="post"> 
        <div class="form-group">
            <label>Company Name</label>
            <s:textfield name="name" value="%{name}" id="name"/>
        </div>
        <div class="form-group">
            <label>Address</label>
            <s:textarea name="address" value="%{address}" id="address"/>
        </div>
        <div class="form-group">
            <label>User Name</label>
            <s:textfield name="logins[0].userName" value="%{logins[0].userName}" id="userName"/>
        </div>
        <div class="form-group">
            <label>User Id</label>
            <s:textfield name="logins[0].userId" value="%{logins[0].userId}" id="userId"/>
        </div>
        <div class="form-group">
            <label>Mail Id</label>
            <s:textfield name="logins[0].userMailid" value="%{logins[0].userMailid}" id="userMailid"/>
        </div>

Pojo Classes

public class Client  implements java.io.Serializable {
  private Set logins = new HashSet(0);
  //getter and setter
 }



 public class Login implements java.io.Serializable {

    private Long id;
    private Client client;
    private String userId;
    private String userName;
    private String userMailid;
 }

Action Class

public String register() {
        Client cl = new Client();
        System.out.println(cl.getName() + " " + cl.getAddress());
  }

I want to set values of set in to my Action class for Client and Login.

How to do this?

Answer 1

You can use a submit button like this:

 <form action="Registered" method="post"> 
            <div class="form-group">
                <label>Company Name</label>
                <s:textfield name="name" value="%{name}" id="name"/>
            </div>
            <div class="form-group">
                <label>Address</label>
                <s:textarea name="address" value="%{address}" id="address"/>
            </div>
            <div class="form-group">
                <label>User Name</label>
                <s:textfield name="logins[0].userName" value="%{logins[0].userName}" id="userName"/>
            </div>
            <div class="form-group">
                <label>User Id</label>
                <s:textfield name="logins[0].userId" value="%{logins[0].userId}" id="userId"/>
            </div>
            <div class="form-group">
                <label>Mail Id</label>
                <s:textfield name="logins[0].userMailid" value="%{logins[0].userMailid}" id="userMailid"/>
            </div>
          <input type="submit" value="Submit">
        </form>

EDIT

A nice tutorial

After make properties file like:

#Global messages
name= name
submit = Submit

I believe you has made Registered.jsp.

An you can run your project!

Answer 2

To bind fildes to Set you should put annotations on this property

public class Client  implements java.io.Serializable {

  @Element(value = Login.class)
  @Key(value = Long.class)
  @KeyProperty(value = "id") 
  @CreateIfNull(value = true)
  private Set logins = new HashSet(0);
  //getter and setter

  //now you need a property for login id, it should be initialized before JSP is populated
  private Long loginId;
  //getter and setter
}

now binding to the fields of the JSP change to

<s:textfield name="logins(%{loginId}).userName" id="userName"/>

the same for other fields that are bound to a set.

If you are using iterator tag to iterate through a set and you have an instance of Login pushed on top of the value stack then you can get its id instead of using loginId .