jstl and jsp question - edited and reposted

[nirali shah]

This question has been reposted for easier reading.
following code I have taken from an example

<jsp:useBean
id="bean1" class="ourbeans.player" >
<jsp:setProperty
name="bean1" property="*" />
</jsp:useBean>

we are using bean instead of putting logic in the jsp page.

But, we should first create the 'player ' bean with all the attributes and getter & setter methods, as shown.

// player.java
package ourbeans;
public class player{
String name;
String place;
String game;
public player(){
name=" ";
place=" ";
game=" ";
}

public void setName(String a){
name=a;
}

public void setPlace(String b){
place=b;
}

public void setGame(String c){
game=c;
}

How is the values of parameters a, b and c is passed to the setName(String a), setPlace(String b) and setGame(String c) from the form without {param.text} ? If the values are passed from the form using {param.text} , then why not use that directly in the jsp page rathet than calling it through bean ? What is the use of bean in such a situation ?

public String getName(){
return name;
}

public String getPlace(){
return place;
}

public String getGame(){
return game;
}

}

Whats the need of getter methods, when all the variables are public and can be called directly ?

In this demo2.jsp, we collect the data and then display the data entered by the user. Question is, how is data sent to the bean from the form ?

Note that instead of {param.text1}, we are using {bean1.name}. We should carefully name the html form controls with the corresponding attribute names given in the bean. We cannot name the controls as 'text1' etc, now! Question is, we can use {bean1.name} in the jsp page and collect data from bean1 in the jsp page. But how does bean1 get parameters from the form ?

<c: out value="${bean1.name}" />
<c: out value="${bean1.place}" />
<c: out value="${bean1.game}" />

why use ${bean1.name} ? We can directly get parameters from form as ${param.text} ? Whats the point in using bean in this situation ?

thanks

[Bear Bibeault]

Please do not repost in the future -- rather, edit your original post. I have closed this topic, please continue in the original whihc already has replies and discussion.