通过ajax拼装select下拉框：请求后台返回Map对象。

function getSysResGroup(){
$("#queryChild").val("1");
    $.ajax({
            url:APP_PATH+"/templates/yn/userauth/getSysResGroup.do",
            type: "post",  
            dataType: "json",  
            contentType: "application/json",  
            traditional: true,  
            success: function (data) {  
                var optionstring = "";  
                for (var resCode in data) {  
                    var resName =data[resCode];  
                    optionstring += "
" + resName + ""; } $("#resGroupList").html("请选择"+optionstring); } }); }