Solved

How to pass "&" sign from .jsp to servlet?

Posted on 2004-04-20
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Last Modified: 2010-04-01
I have a jsp page which will pass a request to Serlvet like this:
for example:
this option is "Q&A", and the link wil be "http://xxx.com/run?category=Q%20&%20A"

But when I run
-----------------------------------------------------------
category = request.getParameter("cateogry");
System.out.println(category);
-----------------------------------------------------------
The result is only "Q", ...... which means "&A" is gone.

Can anyone help me on this?
0
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Question by:tsongwei
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7 Comments
 
LVL 9

Expert Comment

by:Nick_72
ID: 10869398
try %26


"http://xxx.com/run?category=Q%20%26%20A"
0
 

Author Comment

by:tsongwei
ID: 10869451
I am sorry I ask the question wrong.
My question should be suppose I have a loop which will create links for cateogries.
for example:
category ....  link
--------------------------
home ........ http://xxx.com/run?cateogry=home
fun ............ http://xxx.com/run?catrgory=fun
Q&A .......... http://xxx.com/run?category=Q&A   <---- this one is wrong
--------------------------
how do I fix this? to make it pass "Q&A" instead of just "Q"

Thank you.
0
 
LVL 9

Accepted Solution

by:
Nick_72 earned 75 total points
ID: 10869500
I would still replace the '&' with %26.

If you show me more code maybe I can provide better help, but generally:

String link = " http://xxx.com/run?category=Q&A".replaceAll("&", "%26");
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LVL 7

Assisted Solution

by:searlas
searlas earned 50 total points
ID: 10869522
More generally, use URLEncoder:
<%@ page language="java" import="java.net.URLEncoder" %>
<%
String cat = "q&a"; // or whatever
%>
<a href="http://xxx.com/run?category=<%= URLEncoder.encode(cat) %>">link text</a>
0
 

Author Comment

by:tsongwei
ID: 10869587
I got it!!!
Thank you so much. Solved my problem in 20 minutes with this forum.

Thank you again.
0
 
LVL 9

Expert Comment

by:Nick_72
ID: 10869609
Glad to help :)
0
 
LVL 6

Expert Comment

by:jarasa
ID: 10869836
Try what nick says without the %20 wich are spaces just

"http://xxx.com/run?category=Q%26A"

Javier
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