|
midrange.com
Ron,
The server side will basically totally ignore your JavaScript - as far as
it is concerned it is just more HTML which gets sent to the browser. So if
you put something in your JavaScript like
if ("<%=request.getAttribute("reloadStreet")%>"="true")
dosomething;
then this would work - the server would resolve the attribute value and
send to the browser either
if ("true"="true")
dosomething;
or
if ("false"="true")
dosomething;
which is a bit wasteful. So instead what you want to do is if there is a
particular piece of JavaScript that you only want to run if the value is
true, make sure that JavaScript is only sent to the browser under those
circumstances, i.e.
<%
if (((String) request.getAttribute("reloadStreet")).equals ("true"))
{ %>
dosomething;
<% }
%>
then the browser will either receive the dosomething; call, or it won't.
It will never see the IF statement because that will be resolved on the
server. You can check what is going on by doing View -> Source in your
browser when testing it, so you can see what actually gets sent to the
browser.
HTH,
Nigel Gay,
Computer Patent Annuities.
|---------+------------------------------>
| | RPower@xxxxxxxxxx |
| | Sent by: |
| | java400-l-bounces@m|
| | idrange.com |
| | |
| | |
| | 04/05/2005 08:03 AM|
| | Please respond to |
| | Java Programming on|
| | and around the |
| | iSeries / AS400 |
| | |
|---------+------------------------------>
>--------------------------------------------------------------------------------------------------------------|
|
|
| To: Java Programming on and around the iSeries / AS400
<java400-l@xxxxxxxxxxxx> |
| cc:
|
| Subject: Re: Param question
|
>--------------------------------------------------------------------------------------------------------------|
Can I access that attribute from the Javascript inside the JSP?
Ron Power
Programmer
Information Services
City Of St. John's, NL
P.O. Box 908
St. John's, NL
A1C 5M2
Tel: 709-576-8132
Email: rpower@xxxxxxxxxx
Website: http://www.stjohns.ca/
___________________________________________________________________________
Success is going from failure to failure without a loss of enthusiasm. -
Sir Winston Churchill
NGay@xxxxxxxxxxxxx
Sent by: java400-l-bounces@xxxxxxxxxxxx
04/05/2005 09:45 AM
Please respond to
Java Programming on and around the iSeries / AS400
<java400-l@xxxxxxxxxxxx>
To
Java Programming on and around the iSeries / AS400
<java400-l@xxxxxxxxxxxx>
cc
Subject
Re: Param question
Ron,
I don't believe you can do "getRequestDispatcher(url)" and put extra
parameters on the end of the URL, personally I've never tried it, but I
thought you only ever specify the name of a JSP here. This is a bit of an
odd way to try passing values through to the JSP... instead why not do
request.setAttribute ("reloadStreet", "false");
then in your loop/if do request.setAttribute ("reloadStreet", "true");
then inside the JSP you can retrieve this value via
request.getAttribute("reloadStreet")
?
HTH,
Nigel Gay,
Computer Patent Annuities.
|---------+------------------------------>
| | RPower@xxxxxxxxxx |
| | Sent by: |
| | java400-l-bounces@m|
| | idrange.com |
| | |
| | |
| | 04/05/2005 05:46 AM|
| | Please respond to |
| | Java Programming on|
| | and around the |
| | iSeries / AS400 |
| | |
|---------+------------------------------>
>--------------------------------------------------------------------------------------------------------------|
| |
| To: Java Programming on and around the iSeries / AS400
<java400-l@xxxxxxxxxxxx> |
| cc: |
| Subject: Re: Param question |
>--------------------------------------------------------------------------------------------------------------|
Bump...
Ron Power
Programmer
Information Services
City Of St. John's, NL
P.O. Box 908
St. John's, NL
A1C 5M2
Tel: 709-576-8132
Email: rpower@xxxxxxxxxx
Website: http://www.stjohns.ca/
___________________________________________________________________________
Success is going from failure to failure without a loss of enthusiasm. -
Sir Winston Churchill
RPower@xxxxxxxxxx
Sent by: java400-l-bounces@xxxxxxxxxxxx
02/05/2005 03:06 PM
Please respond to
Java Programming on and around the iSeries / AS400
<java400-l@xxxxxxxxxxxx>
To
"Java Programming on and around the iSeries / AS400"
<java400-l@xxxxxxxxxxxx>
cc
Subject
Param question
I'm trying to reload my left frame nav bar if the user added a new
customer that is not showing over there yet.
I've created the URL
"SaveCustomer?reloadStreet=false"
In my class SaveCustomer, I want to change that param reloadStreet to true
if it needs to be reloaded. However, when it goes back to the jsp page,
it shows as being false, even though the java class set it to true.
Here's a snippet of code
url = ("schedule_middle.jsp?reloadStreet=false");
// code to go here to update the vector for the left pane and refresh it.
Vector vStreet = (Vector)sess.getAttribute("vStreet");
for (int i=0; i < vStreet.size(); i++){
StreetInfo st = (StreetInfo)vStreet.get(i);
if(st.getNumber() == customer.getStreetNo()){
if(!(st.checkCivic(customer.getCivicNoInt()))){
st.addCivic(customer.getCivicNoInt());
url = ("schedule_middle.jsp?reloadStreet=true");
}
}
}
conn.close();
sess.setAttribute("customer", customer);
sess.setAttribute("disabled", "disabled");
sess.setAttribute("enabled", "enabled");
getServletConfig()
.getServletContext()
.getRequestDispatcher(url)
.forward(req, resp);
I don't think I'm setting it correctly though. I'm using post, and I
think what I'm doing here is for doGet... Can someone help? Thanks,
Ron Power
Programmer
Information Services
City Of St. John's, NL
P.O. Box 908
St. John's, NL
A1C 5M2
Tel: 709-576-8132
Email: rpower@xxxxxxxxxx
Website: http://www.stjohns.ca/
___________________________________________________________________________
Success is going from failure to failure without a loss of enthusiasm. -
Sir Winston Churchill
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