querybuilder returning ISO-8859-1 instead of utf8

Question

I am using querybuilder to read the properties of some text components. If I enter UTF8 chars (e.g ü) into the Adobe author editor (and I can see from the page source that its set to UTF8), I get ISO-8859-1 out.

When I get the ValueMap from the component in a servlet, I write the results to a file, and to the servlet response writer also. In the file, if I open it as a ISO-8859-1 I see ü. If i open it as a utf8 file (in VS code), i get a back "?". In postman I see a black "?" and also on the resultant webpage (which has utf8 set in the header).

NOTE: we have set the servlet parameter encoding to UTF8 in the OSGi config as per: http://adobeaemtips.blogspot.com/2015/11/utf-8-encoding-in-aem.html

Any ideas?

FYI, I also tried with Content-Type: application/json; charset=utf-8 request header.

Asutosh_Jena_ · Accepted Answer

Hi @tb3dock  Please add the below entry in "Apache Sling Main Servlet" config and try. Additional response headers:                 Content-Type=text/html;charset=utf-8 Thanks!

arunpatidar · Answer

you can try escaping HTML character e.g.org.apache.commons.lang.StringEscapeUtils.escapeHtml("aäuüöo");

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