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I have a problem in my Java webapp. Here is the code in index.jsp: <%@page contentType="text/html" pageEncoding="UTF-8" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body> <h1>Hello World!</h1> <form action="index.jsp" method="get"> <input type="text" name="q"/> </form> Res: <%= request.getParameter("q") %> </body> </html> When I wireshark a request, my browser sends this header: GET /kjd/index.jsp?q=%C3%A9 HTTP/1.1\r\n ... Accept-Charset: UTF-8,*\r\n And the Tomcat server returns me this: Content-Type: text/html;charset=UTF-8\r\n But if I send "é"(%C3%A9 in UTF-8) in my form, "Ã©" is displayed instead. What I understand is that the browser sends an "é" encoded with UTF-8 (the %C3%A9). But the server interpret this as ISO-8859-1. So the %C3 is decoded as Ã and %A9 as ©, and then sends back the response encoded in UTF-8. In the code, the requests should be decoded with UTF-8: request.setCharacterEncoding("UTF-8"); But, if I send this url: http://localhost:8080/kjd/index.jsp?q=%E9 the "%E9" is decocded with ISO-8859-1 and an "é" is displayed. Why isn't this working? Why requests are decoded with ISO-8859-1? I've tried it on Tomcat 6 and 7, and on Windows and Ubuntu.

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