html：

<select name="BanZuCode" οnclick="showsmsselect()" >

js：

function showsmsselect() {

var pdid = "BanZuCode" + a;

var BanZuCode = $("#" + pdid + "").val();

if (BanZuCode==null) {

$.ajax({

type:"post",

url: "basePath",

dataType: "json",

success: function (data) {

var optArr = [];

$("#" + pdid + "").empty();

for (var i = 0; i < data.length; i++) {

$("#" + pdid + "").append("<option value=" + data[i].FName + ">" + data[i].FName + "</option>");

}

// 缺一不可

$("#" + pdid + "").selectpicker("refresh");

$("#" + pdid + "").selectpicker("render");

}

});

}

}

controller:

public ActionResult basePath() {

string where1 = "Note="條件"";

//查詢加班人員

Data.BLL.BanZu bz = new Data.BLL.BanZu();

List<Data.Model.BanZu> listbz = bz.FindBanZu(where1);

return Json(listbz, JsonRequestBehavior.AllowGet);

}

因為我做的是新增一行下拉框，所以id是給的動態的。我用的bootstrap框架，看了下應該也適合java，改下controller就可以了