JS传递到后台中文出现乱码问题

js 异步传递中文字符，后台接收出现乱码问题

function showFirSelect(a){
	var b = encodeURI(a);
	var secUrl = "<%=basePath%>schoolController/getSecSchool.do?schoolName="+b;
	
	$.get(secUrl,function(data,status){
      //alert("数据：" + data + "\n状态：" + status);
      $("#secTd").show();
      for(var i=0; i<data.length;i++){
    	  var a = data[i]['schoolname'];
      	$("#secschool").append("<option value='"+i+"'>"+a+"</option>");
      }
    });
}