Pass session attribute from jsp to javascript function

StackOverflow https://stackoverflow.com/questions/22448519

Question

I'm trying to pass a HTTP Session attribute from a JSP page to a JavaScript function written in external JS file. When I'm writing JS part in body section without writing specific function it works fine but when I declare a function and try to pass session attribute as a parameter it gives following error.

SyntaxError: syntax error

I have tried following methods to pass session attribute to JS function:

<body onload="popListbox(<%=session.getAttribute("objNames")%>)">

<body onload="popListbox(${objNames})">

after execution body tag looks like this:

<body national_id","birth_certificate"])"="" onload="popListbox(["></body>

Can someone tell me why body tag looks like above and how should I pass the parameter to JS function.

Was it helpful?

Solution

You could use single quotes for the attribute, i.e. onload='...' - right now your data string contains double quotes which break everything as they terminate the attribute.

However, it would be much better to keep using double quotes and HTML-escape any special characters (", &, < and >) in objNames! That way you don't get any problems if the data contains single quotes somewhere.

OTHER TIPS

I guess your quotes are creating a problem.i.e they are conflicting..Try using single quotes...

<body onload='popListbox(<%=session.getAttribute("objNames")%>)'>
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