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Asked: 2026-05-29T15:23:06+00:00

I tried to pass UTF-8 String as f:viewParam value but value shown as garbage

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I tried to pass UTF-8 String as f:viewParam value but value shown as garbage string, i added EncodingFilter in web.xml for setting UTF-8 to request and response as below

HttpServletResponse response = (HttpServletResponse) servletResponse;
HttpServletRequest request = (HttpServletRequest) servletRequest;
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html; charset=UTF-8");

and i defined facelet page in this style, but problem not resolved

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:h="http://java.sun.com/jsf/html">
<f:metadata>
    <f:viewParam name="q" value="#{searchBean.query}"/>
</f:metadata>
.....
</html>

I test this with Myfaces 2.0.5 and Mojarra 2.0.5

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1 Answer

  1. Editorial Team

    Apparently you’re using a server configuration which interprets GET query strings using a different character encoding by default. For example Tomcat interprets them as ISO-8859-1 by default. You need to open Tomcat’s /conf/server.xml and add URIEncoding attribute to the <Connector> element with a value of UTF-8.

    <Connector ... URIEncoding="UTF-8">

    That filter is by the way totally unnecessary. Remove it. JSF 2.x on Facelets defaults to UTF-8 at all levels already. Besides, the HttpServletRequest#setCharacterEncoding() doesn’t affect GET requests, it affects POST requests only.

    See also:

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