Hi,
I am facing the same issue in tomcat & jsp as listed in below asp issue http://stackoverflow.com/questions/350429/classic-asp-gremlims-getting-a-ainserted-into-text-whenever-an-html-special-cha
Using tomcat 5 and jsp. When I type in a string containing like ±20°C and submit to another JSP the resultant parameter after submit is ±20°C. An addition character 'Â' is being added before every special char in the request itself. How do I resolve this issue?
Thanks,
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That is the symptom of ISO-Latin-whatever source data being transcoded into UTF-8 on the way out. Check your character encodings.
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What should be correct encoding? Where and how should it be set for this issue?
Bozho : use comments instead of answers. -
Try
<%@ page pageEncoding="utf-8" %>and
request.setCharacterEncoding("utf-8"); -
I had a similar problem, which seems to now be fixed after altering the following <meta> line in the <head> block.
<meta http-equiv="content-type" content="text/html; charset=utf-8" />It's the utf-8 which is important!
Hope that helps.
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This is caused by displaying UTF-8 page as Latin-1. For example, ± is encoded as 0xB1 in Latin-1 but 0xC2, 0xB1 in UTF-8. 0xC2 happens to be Â.
This is kind of strange for a JSP page. Normally, JSP will use the same encoding in the writer and "Content-Type" header so you always get the same encoding. Check if you specifies encoding like this,
<%@page pageEncoding="UTF-8" %>If you have a custom "Content-Type" header, make sure you append ", charset=UTF-8".
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To the point: during each step where
byte-charconversion is involved, you need to specify the same and correct character encoding everywhere. To cover any human character at the world,UTF-8is a perfect choice.There are several steps you need to specify this character encoding: parsing
GETquery parameters (configureable in appserver settings), parsingPOSTrequest body (configureable with help of a Filter), writing to the response stream (configurable with help of@page pageEncodingin JSP orHttpServletResponse#setCharacterEncoding()in Servlet), reading/writing to database (configureable in DB table itself), reading/writing to files (configureable usingInputStreamReaderandOutputStreamWriter).You can find more detailed background information and complete code solutions in this article.
Hope this helps.
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