• Post Reply Bookmark Topic Watch Topic
  • New Topic

My servlet doesn't get params

 
moshi cochem
Ranch Hand
Posts: 91
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi.
I try to call a servlet and to pass parameters to it. My form is very simple:
<form action="HelloWorld" method="get">
<table>
<tr>
<td><label>name</label></td>
<td><input type="text" id="txtName"></input></td>
</tr>
<tr>
<td><label>family</label></td>
<td><input type="text" id="txtfamily"></input></td>
</tr>
</table>

<input type="submit"></input>
</form>

And in my servlet I have inside the doGet method:
String name = request.getParameter("name");
That gets null.

I tried also to add a method of doPost, and to write the same code in it, but I still get NULL.

Any idea ?
Thanks.
 
Bear Bibeault
Author and ninkuma
Marshal
Posts: 65530
108
IntelliJ IDE Java jQuery Mac Mac OS X
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Please UseCodeTags.
 
Ulf Dittmer
Rancher
Posts: 42970
73
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
You're missing the "name" attributes of the <input> tags - a "label" is something different.
 
Bear Bibeault
Author and ninkuma
Marshal
Posts: 65530
108
IntelliJ IDE Java jQuery Mac Mac OS X
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Your results should be no surprise because you don't have an input element with the name name. When you ask for the value of a request parameter that doesn't exist, you get null.

P.S. You ought to avoid using tables for formatting.
 
Sherif Shehab
Ranch Hand
Posts: 487
Android Eclipse IDE Oracle
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
moshi cochem wrote:Hi.
I try to call a servlet and to pass parameters to it. My form is very simple:
<form action="HelloWorld" method="get">
<table>
<tr>
<td><label>name</label></td>
<td><input type="text" id="txtName"></input></td>
</tr>
<tr>
<td><label>family</label></td>
<td><input type="text" id="txtfamily"></input></td>
</tr>
</table>

<input type="submit"></input>
</form>

And in my servlet I have inside the doGet method:
String name = request.getParameter("name");
That gets null.

I tried also to add a method of doPost, and to write the same code in it, but I still get NULL.

Any idea ?
Thanks.


Ya As Bear and Ulf said , there is nothing named "name" as you mentioned in your code to get the value of it , your code must looks like this :

Hope this is helpful ..
 
moshi cochem
Ranch Hand
Posts: 91
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi,
thanks for all the replies.
So I understand that the request object works with name and not with id, right ?
I'll try it.
And another thing, why should't I use tables ? Should I use DIV instead ? I'll be glad to hear why.
Thanks a lot!
 
Ravishanker kumar
Ranch Hand
Posts: 53
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
moshi cochem wrote:Hi,
thanks for all the replies.
So I understand that the request object works with name and not with id, right ?
I'll try it.
And another thing, why should't I use tables ? Should I use DIV instead ? I'll be glad to hear why.
Thanks a lot!

There is no relation with table/DIV with servlet. You can use DIV also...

 
Maximus Moothiringus
Ranch Hand
Posts: 46
Eclipse IDE Java Tomcat Server
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
The choice between the table and div would come as part of a choice for the design of the web.

div would call for some use of styling on your part where as table can be used to layout as effectively. Also, for form parameters, name would be the obvious, and I think the only, choice. The id attribute would be used for identifying it as part of the DOM, if i am not wrong.

Max
 
Bear Bibeault
Author and ninkuma
Marshal
Posts: 65530
108
IntelliJ IDE Java jQuery Mac Mac OS X
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Using tables for formatting is a pre-CSS dinosaur. Use CSS for layout, tables for tables.
 
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!