ajax动态刷新下拉框

动态post，避免直接给页面传输大量数据

/**
	 * ajax通过商品刷新供应商
	 * by_kangyx
	 * @throws IOException 
	 */
	@RequestMapping(params = "actionMethod=refreshGoodRefSuppliers",method = RequestMethod.POST)
	public void refreshGoodRefSuppliers(final Model model,
			final HttpServletRequest request, final HttpServletResponse response) throws IOException{
		//定义返回字符串
	    StringBuffer strBuffer = new StringBuffer("");
		String goodId = request.getParameter("goodId");
		strBuffer.append("<option value=''>---请选择---</option>");
		List<GoodRefSuppliers> goodRefSuppliersList = baseSupplierService.getGoodRefSuppliers(Long.valueOf(goodId));
		for(int i=0;i<goodRefSuppliersList.size();i++){
			strBuffer.append("<option value ='"+goodRefSuppliersList.get(i).getSuppliers().getId()+"'>"+goodRefSuppliersList.get(i).getSuppliers().getName()+"</option>");
		}
		Util.printString(response, strBuffer.toString());
	}

                                <td>
			        <select name="goodRefSuppliers" id="goodRefSuppliers_${s.index}"
			        onchange="setSuppliers(this.value,${orderdetail.id});" 
			        onkeydown="refreshGoodRefSuppliers(${orderdetail.prdInfo.goodsInfo.id},${s.index});"
			        onmousedown="refreshGoodRefSuppliers(${orderdetail.prdInfo.goodsInfo.id},${s.index});">    
			        <option value="">--请选择--</option>
			        </select>
			         </td>

	function refreshGoodRefSuppliers(id,ip){
		switchData('logisticsOrders.do?actionMethod=refreshGoodRefSuppliers&goodId='+id,'',function(data,flag){
			if(flag==1){
				if(data!=""){
					$("#goodRefSuppliers_"+ip).empty().append(data);
	
				}
			}
		});
	}