jquery ajax提交中文乱码问题

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function getdatadetail(area){var localPath = "<%=basePath%>";$.post(localPath+"showDataDetail.do?method=queryData", {areaName:encodeURI(area.name),areaType:area.type,areaCode:area.code,dataTime:$('#dataTime').val()},function(data) {$('#ajaxDiv').html(data);}); }



String areaName = decodeUTF8(request.getParameter("areaName"));public static String decodeUTF8(String str){if (str != null) {try{        str = java.net.URLDecoder.decode(str,"UTF-8");}catch( UnsupportedEncodingException e ){e.printStackTrace();}}return str;}