• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Can a JSP page retrieve an array off a bean?

 
Ranch Hand
Posts: 70
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Can a JSP page retrieve an array off a bean? I have two sample lines below. The first line retrieves the bean saved by the servlet, the second line displays the value of property x. Now if x returned a array, how can I display all values of the array? How can I loop through all array values of x? Thanks for the help, I'm confuse on this one.

<jsp:useBean id="key" type="Package.Object" scope="Application" />

<jsp:getProperty name="key" property="x" />
 
Ranch Hand
Posts: 15304
6
Mac OS X IntelliJ IDE Chrome
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
You'll probably want to look at JSTL for iterating over arrays.
 
Sheriff
Posts: 67746
173
Mac Mac OS X IntelliJ IDE jQuery TypeScript Java iOS
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Which version of JSP? Please always include this information when posting a new question.
 
Fritz Largosa
Ranch Hand
Posts: 70
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
JSP 2.0
 
Fritz Largosa
Ranch Hand
Posts: 70
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Is there a way to do this in a scriptlet?
 
Bear Bibeault
Sheriff
Posts: 67746
173
Mac Mac OS X IntelliJ IDE jQuery TypeScript Java iOS
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Of course, but if youare using JSP 2.0 that's like using stone knives and bearskins.

Being sure that the JSTL 1.1 is set up correctly, and that the c library is mapped on the page, it's as easy as (using the naming in your op):

 
Fritz Largosa
Ranch Hand
Posts: 70
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Is it possible to iterate through a two dimensional array in a bean? All samples I see pertain to single dimensional arrays or just one string values.

I am needing to convert the code below to JSTL. where array_variable is a two dimensional array.

for(int x =0; ${Bean.array_variable[1][x]} != null; x++){
.....
}
[ April 11, 2007: Message edited by: Fritz Largosa ]
 
Sheriff
Posts: 13411
Firefox Browser VI Editor Redhat
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
You can nest <c:forEach ../> tags.
 
Yup, yup, yup. Tiny ad:
a bit of art, as a gift, that will fit in a stocking
https://gardener-gift.com
reply
    Bookmark Topic Watch Topic
  • New Topic