Question

I am working on a Spring JSR 286 Portlet application. The locale is driven by a default language setting that is loaded upon login.

I then need to do currency formatting through the portlet. For example, I do the following:

<fmt:setLocale value="en_IE" />
result: <fmt:formatNumber type="currency" value="324.00" currencyCode="EUR" />

(Normally, all these values are set dynamically.)

This produces a fine result as I go through the normal operation.

result: €324.00 

Except, in the application, when I do a @ResourceMapping request. In this case, and here only, I get:

result: ?324.00

I’ve got the same two lines in the jsp’s that render for RenderRequests and in the jsp’s that render for ResourceRequests. But regardless of what I do, it always fails to produce clean output as part of a ResourceRequest.

Any ideas as to what could be causing the inconsistency?

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2nd EDIT:

Following on +BalusC ‘s 2nd comment, I put the following into the jsp:

<% System.out.println("Response Char Encoding: " + response.getCharacterEncoding());  %>

For regular requests where, it works, I get:

SystemOut O Response Char Encoding: UTF-8

For Render Requests, where it doesn’t work, I get:

SystemOut O Response Char Encoding: ISO-8859-1

So, yes, as predicted, this is a character encoding issue.

—

EDIT 3:

So, the issue is how to set a character encoding of UTF-8 in Spring on a ResourceResponse.

Putting in a page directive of <%@page pageEncoding="UTF-8"%> doesn’t override the default encoding seen above. The methods for building this directly into Spring are complicated hacks (see Spring Encoding with CharacterEncodingFilter in web.xml ), and given that I have only a handful of Resource Request methods, it seems the easiest way is to just put

response.setCharacterEncoding("UTF-8");

into those methods.

Would appreciate any other suggestions, especially if I’m wrong about how to more easily put this into Spring.

Answer 1

My final resolution to this was in Edit #3 above. To just hardcode

response.setCharacterEncoding("UTF-8");

into the 2 ResourceResponse methods.

If you have more extensive resource requests and need a comprehensive solution, follow the links in the question.