Re: Extra row appear in my jsp page after the Submit button is pressed

[albert kao]

Problem is fixed.
Thanks!

On Mon, Mar 12, 2018 at 1:36 AM, Yasser Zamani 
wrote:

>
>
> On 3/12/2018 6:03 AM, albert kao wrote:
> >> name="persons[%{#stat.count}].name"/>
>
> I guess using #stat.index (instead of #stat.count) solves this issue.
> Count will be 1,2 and 3 but Index will be 0,1 and 2 which is same as
> that index that java uses.
>
> Regards.
>

Re: Extra row appear in my jsp page after the Submit button is pressed

[Yasser Zamani]

On 3/12/2018 6:03 AM, albert kao wrote:
>name="persons[%{#stat.count}].name"/>

I guess using #stat.index (instead of #stat.count) solves this issue.
Count will be 1,2 and 3 but Index will be 0,1 and 2 which is same as
that index that java uses.

Regards.

Extra row appear in my jsp page after the Submit button is pressed

[albert kao]

I am debugging my test program.
When my test page http://localhost:8080/Struts2Example/updatePerson
appeared in the browser, it displayed
A
B
C
in its own textfield and a Submit button, which is expected.

However, after I edited the textfields and pressed the Submit button.
The following appeared in the browser.
Name :A
Name :Aa
Name :Bb
Name :Cc

I do not understand why an extra row (Name :A) appeared in the top with the
rest of the names which I just entered.

The following source codes is my test program.
updatePerson.jsp:
<%@page contentType="text/html" pageEncoding="UTF-8"%>
http://www.w3.org/TR/html4/loose.dtd";>
<%@taglib uri="/struts-tags" prefix="s" %>



Update Person


  
 
  
 
 
  


PersonAction


updatePersonResult.jsp:
<%@page contentType="text/html" pageEncoding="UTF-8"%>
http://www.w3.org/TR/html4/loose.dtd";>
<%@taglib uri="/struts-tags" prefix="s" %>



Update Person Result


 
Name :
 




Person.java:
public class Person {
private int id;
private String name;

public int getId() {
return id;
}

public void setId(int id) {
this.id = id;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}
}



PersonAction.java:
import java.util.ArrayList;
import java.util.List;

import com.opensymphony.xwork2.ActionSupport;

public class PersonAction extends ActionSupport {
private List persons;

public PersonAction () {
persons = new ArrayList();

int alpha = 65;
for (int i = 0; i < 3 ; i++) {
Person person = new Person();
person.setId(i);
person.setName(String.valueOf((char)alpha++));
persons.add(person);
}
}

public List getPersons() {
return persons;
}

public void setPersons(List persons) {
this.persons = persons;
}

//Initial Load method
@Override
public String execute() {
return SUCCESS;
}

//Function that handles the form submit
public String updatePerson() {

for(Person person : persons) {
System.out.println(person.getId() + ":" + person.getName());
}

return SUCCESS;
}
}




struts.xml:

  pages/updatePerson.jsp



  pages/updatePersonResult.jsp