String country = "";
if (null != request.getParameter("areaName")) {
country = request.getParameter("areaName");
try {
// 如果是乱码就转码
if (!(Pattern.matches("[/u4E00-/u9FA5]", country))) { country = new String(country.getBytes("ISO-8859-1"),"UTF-8");
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}