-----------------jsp---------------
var search = $("#searchName").val();
search = encodeURI(search);
search = encodeURI(search);
$(this).attr("href","${rootUrl}app/wx/product/searchName?search="+search);
-------------------controller---------------
if (StringUtils.hasText(search)) {
search = java.net.URLDecoder.decode(search,"UTF-8");
foodModel.setNameZH(search);
}