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Asked: 2026-05-12T11:27:38+00:00

I’m programming some websites with JSP-Scripting and I encounterd a strange problem with urlencoded

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I’m programming some websites with JSP-Scripting and I encounterd a strange problem with urlencoded web-formular parameters. The site itself is encoded in iso-8859-1.

I have a simple webform with a field called description.

If I enter german Umlauts or specialchars like “ü” or “ß”, these get automatically urlencoded. But if I want to read this parameter, I always get null. 

String description = request.getParameter("description");

If I enter some chinese words, like 專業人士, they are urlencoded, too. However, I can read them without retrieving null.

This behaviour doesn’t change whether I use “post” or “get” as method.
I tried to “pimp” my webform with the text below – but that didn’t help either.

accept-charset="ISO-8859-1" enctype="application/x-www-form-urlencoded"

My question is:
Why can’t I retrieve urlencoded german Umlauts but some chinese words?

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1 Answer

  1. Editorial Team

    Chinese with ISO-8859-1 wont’t work, but german should. If chineese is encoded anyway, maybe your form is encoded in UTF-8? Which browser so you use? What is the encopding of the JSP? You should always use UFT-8, not Latin 1. Nowadays every browser and server should support UTF-8 on every OS.

    My experience is, that GET ist often not working with encoding, but POST should do. The form parameters accept-charset and enctype are correct. What server do you use?

    The JSP content type is typically set by:

    <%@ page language="java" contentType="text/html; charset=ISO-8859-1" 
                         pageEncoding="ISO-8859-1" %>
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