functions in Javascript

16 New Member

I have a few text fields and a button in a .JSP page. The button has an onclick value of "buttonclick()". I want it to complete the lines inside of the buttonclick() function that I have defined when the user clicks the button.

For some reason, the lines are run as soon as the page loads. Here is the code I have. The user is immediately forwarded to the Login servlet rather than being able to enter information in. I cannot use a <form>, because I need to save the information in the current session.

In the <head>:
[HTML]<script type="text/javascript">
function buttonclick(){
<%
//some lines of code, then these three lines to forward some information on to the login servlet.
ServletContext sc = getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher("/servlet/Login");
rd.forward(request, response);
%>
}
</script>[/HTML]

And then in the <body>:
[HTML]<input type="button" onclick="buttonclick()" name="submitButton" value="Login" />[/HTML]

Jun 15 '07 #1

Subscribe Reply

2164

dmjpro

2,476

Top Contributor

I have a few text fields and a button in a .JSP page. The button has an onclick value of "buttonclick()". I want it to complete the lines inside of the buttonclick() function that I have defined when the user clicks the button.

For some reason, the lines are run as soon as the page loads. Here is the code I have. The user is immediately forwarded to the Login servlet rather than being able to enter information in. I cannot use a <form>, because I need to save the information in the current session.

In the <head>:
[HTML]<script type="text/javascript">
function buttonclick(){
<%
//some lines of code, then these three lines to forward some information on to the login servlet.
ServletContext sc = getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher("/servlet/Login");
rd.forward(request, response);
%>
}
</script>[/HTML]

And then in the <body>:
[HTML]<input type="button" onclick="buttonclick()" name="submitButton" value="Login" />[/HTML]

Expand|Select|Wrap|Line Numbers

 
<%

    //some lines of code, then these three lines to forward some information on to the login servlet.

    ServletContext sc = getServletContext();

    RequestDispatcher rd = sc.getRequestDispatcher("/servlet/Login");

    rd.forward(request, response);

%>

This tag is not valid in javascript code .... right????
Write valid JS code inside the function body.
Best of luck......

Kind regards,
Dmjpro.

Jun 15 '07 #2

r035198x

13,262

MVP

I have a few text fields and a button in a .JSP page. The button has an onclick value of "buttonclick()". I want it to complete the lines inside of the buttonclick() function that I have defined when the user clicks the button.

For some reason, the lines are run as soon as the page loads. Here is the code I have. The user is immediately forwarded to the Login servlet rather than being able to enter information in. I cannot use a <form>, because I need to save the information in the current session.

In the <head>:
[HTML]<script type="text/javascript">
function buttonclick(){
<%
//some lines of code, then these three lines to forward some information on to the login servlet.
ServletContext sc = getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher("/servlet/Login");
rd.forward(request, response);
%>
}
</script>[/HTML]

And then in the <body>:
[HTML]<input type="button" onclick="buttonclick()" name="submitButton" value="Login" />[/HTML]

You are writing Java code inside Javascript tags. That won't work. Submit the form using Javascript not using request dispatcher.

Jun 15 '07 #3

wesomon99

New Member

thank you both for your help, I..umm...didn't know I couldn't do that.

Jun 15 '07 #4

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