我有一个只有一个字段的表格。当我提交表单时，我的字段值变得奇怪。Extremação 这个词变成了 Extremação。
所以，我已经在我的应用程序的每个地方设置了 UTF-8 编码：
<?xml version="1.0" encoding="UTF-8"?>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<f:view contentType="text/html" encoding="UTF-8">
<h:form id="formParamSupremo" prependId="false" acceptcharset="UTF-8">
我也创建了一个编码过滤器：
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html; charset=UTF-8");
我的http头是这样的：
host = localhost:8080
user-agent = Mozilla/5.0 (X11; U; Linux x86_64; pt-BR; rv:1.9.2.23) Gecko/20110921
user-agent = Mozilla/5.0 (X11; U; Linux x86_64; pt-BR; rv:1.9.2.23) Gecko/20110921 Ubuntu/10.04 (lucid) Firefox/3.6.23
accept = text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
accept-language = pt-br,pt;q=0.8,en-us;q=0.5,en;q=0.3
accept-encoding = gzip,deflate
accept-charset = ISO-8859-1,utf-8;q=0.7,*;q=0.7
keep-alive = 115
connection = keep-alive
referer = http://localhost:8080/parametros/view/xhtml/parametrosSupremo.jsf
cookie = JSESSIONID=6DC0C1D4434FB90C3F9271D6C54DC575
content-type = application/x-www-form-urlencoded
content-length = 185