java - How to convert JSP request attribute to a string and assign it to an object in JavaScript - Stack Overflow

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I have a Java servlet which sets an attribute on the HttpServletRequest object:

request.setAttribute("SOME_STRING", somestring);

Now, in my page.jsp, I want to set this string to be displayed in an HTML textarea...

I've been trying to do something like this, but I just can't get it to display the string:

var somestr = <%= (String) (request.getAttribute("SOME_STRING")) %>;
document.getElementById("my_textarea").value = somestr; 

The textbox now displays "[Object object]" instead of the string itself.

How can I get it to display the actual string?

I have a Java servlet which sets an attribute on the HttpServletRequest object:

request.setAttribute("SOME_STRING", somestring);

Now, in my page.jsp, I want to set this string to be displayed in an HTML textarea...

I've been trying to do something like this, but I just can't get it to display the string:

var somestr = <%= (String) (request.getAttribute("SOME_STRING")) %>;
document.getElementById("my_textarea").value = somestr; 

The textbox now displays "[Object object]" instead of the string itself.

How can I get it to display the actual string?

• java
• javascript
• jsp
• tomcat
• jstl

Share Improve this question Follow asked Dec 8, 2013 at 16:53 JoshJosh 70766 silver badges2222 bronze badges 1

• What do you put at somestring at request.setAttribute("SOME_STRING", somestring); – Masudul Commented Dec 8, 2013 at 17:08

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3 Answers 3

Sorted by: Reset to default 3

Please change your line from

var somestr = <%= (String) (request.getAttribute("SOME_STRING")) %>;

to

var somestr = '<%= (String) (request.getAttribute("SOME_STRING")) %>';

Enclose var somestr with single quotations ' ',

var somestr = '<%= (String) (request.getAttribute("SOME_STRING")) %>';//Add ' ' 

document.getElementById("my_textarea").value = somestr; 

<script type="text/javascript">
var attrib ="<%=request.getAttribute("hello") %>";
alert(attrib); 
</script>

Enclose your scriptlet with quotes.

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