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reading jsp array in to java(servlet) program

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Join Date: Aug 2009

Posts: 26

Reputation: beanboy is an unknown quantity at this point

Solved Threads: 1

beanboy

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Light Poster

reading jsp array in to java(servlet) program

Sep 24th, 2009

hi helpers,
i'm trying to read an array from jsp in to java(servlet) page
the code is
JSP CODE (readingcheck box values):

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 JSP Syntax (Toggle Plain Text) 
String select[] = request.getParameterValues("sel"); 
 
if (select != null && select.length != 0) {
 
for (int i = 0; i < select.length; i++) {
out.println(select[i]);
String select[] = request.getParameterValues("sel"); 

if (select != null && select.length != 0) {

for (int i = 0; i < select.length; i++) {
out.println(select[i]);

its working ok!

JAVA CODE(reading array values):

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 JSP Syntax (Toggle Plain Text) 
String select2[] = request.getParameterValues("select"); 
for (int i = 0; i < select2.length; i++) 
{
System.out.println(select2[i]);
}
String select2[] = request.getParameterValues("select"); 
for (int i = 0; i < select2.length; i++) 
{
System.out.println(select2[i]);
}

the above java code didnt worked.

i also tried this

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 JSP Syntax (Toggle Plain Text) 
String[] select= new String[100];
for (int i = 0; i <10 ; i++)
{
select[i] = request.getParameter(select[i]);
System.out.println(select[i]);
}
String[] select= new String[100];
for (int i = 0; i <10 ; i++)
{
select[i] = request.getParameter(select[i]);
System.out.println(select[i]);
}

this didnt worked too
is there any other way to read array values from jsp page?
where am i wrong?

thanks,
BeanBoy !

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Join Date: Mar 2008

Posts: 318

Reputation: Thirusha is an unknown quantity at this point

Solved Threads: 51

Thirusha

Offline

Posting Whiz

Re: reading jsp array in to java(servlet) program

Sep 25th, 2009

getParameter only works if the parameter you are accessing exists in the URL that was sent to the servlet.

Are you sure that the array is being sent to the servlet?

If the url is this : "/jspservlet?name=blah&myArray={1,2,3}" (the curly brackets would be replaced with the correct url encode for brackets which would be %something), then using request.getParameter("myArray") would return the array.

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