Why does POST not honor charset, but an AJAX request does? tomcat 6
form post (outputs chars in iso)
<form id="leadform" enctype="application/x-www-form-urlencoded; charset=utf-8" method="post" accept-charset="utf-8" action="{//app/path}">
You don't need to specify the charset there. The browser will use the charset which is specified in HTTP response header.
Just
<form id="leadform" method="post" action="{//app/path}">is enough.
xml declaration:
<?xml version="1.0" encoding="utf-8"?>
Irrelevant. It's only relevant for XML parsers. Webbrowsers doesn't parse text/html as XML. This is only relevant for the server side (if you're using a XML based view technology like Facelets or JSPX, on plain JSP this is superfluous).
Doctype:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Irrelevant. It's only relevant for HTML parsers. Besides, it doesn't specify any charset. Instead, the one in the HTTP response header will be used. If you aren't using a XML based view technology like Facelets or JSPX, this can be as good <!DOCTYPE html>.
meta tag:
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
Irrelevant. It's only relevant when the HTML page is been viewed from local disk or is to be parsed locally. Instead, the one in the HTTP response header will be used.
jvm parameters:
-Dfile.encoding=UTF-8
Irrelevant. It's only relevant to Sun/Oracle(!) JVM to parse the source files.
I have also tried using
request.setCharacterEncoding("UTF-8");but it seems as if tomcat simply ignores it. I am not using the RequestDumper valve.
This will only work when the request body is not been parsed yet (i.e. you haven't called getParameter() and so on beforehand). You need to call this as early as possible. A Filter is a perfect place for this. Otherwise it will be ignored.
From what I've read, POST data encoding is mostly dependent on the page encoding where the form is. As far as I can tell, my page is correctly encoded in utf-8.
It's dependent on the HTTP response header.
All you need to do are the following three things:
Add the following to top of your JSP:
<%@page pageEncoding="UTF-8" %>This will set the response encoding to UTF-8 and set the response header to UTF-8.
Create a
Filterwhich does the following indoFilter()method:if (request.getCharacterEncoding() == null) { request.setCharacterEncoding("UTF-8");}chain.doFilter(request, response);This will make that the POST request body will be processed as UTF-8.
Change the
<Connector>entry inTomcat/conf/server.xmlas follows:<Connector (...) URIEncoding="UTF-8" />This will make that the GET query strings will be processed as UTF-8.
See also:
- Unicode - How to get characters right? - contains practical background information and detailed solutions for Java EE web developers.
Try this :
How do I change how POST parameters are interpreted? POST requests should specify the encoding of the parameters and values they send. Since many clients fail to set an explicit encoding, the default is used (ISO-8859-1). In many cases this is not the preferred interpretation so one can employ a javax.servlet.Filter to set request encodings. Writing such a filter is trivial. Furthermore Tomcat already comes with such an example filter.
Please take a look at:
5.xwebapps/servlets-examples/WEB-INF/classes/filters/SetCharacterEncodingFilter.javawebapps/jsp-examples/WEB-INF/classes/filters/SetCharacterEncodingFilter.java6.xwebapps/examples/WEB-INF/classes/filters/SetCharacterEncodingFilter.javaFor more info , refer to the below URLhttp://wiki.apache.org/tomcat/FAQ/CharacterEncoding
Have you tried accept-charset="UTF-8"? As you said, the data should be encoded according to the encoding of the page itself; it seems strange that tomcat is ignoring that. What browser are you trying this out on?