@RequestMapping("queryCityInfo")   @ResponseBody   public String queryCityInfo()throws Exception{      String provinceId = getString("id");      @SuppressWarnings("rawtypes")     List cityList = personalService.queryCity(provinceId);      if(null != cityList && cityList.size() >0 ){       String json = JSONUtils.toJSONString(cityList);            super.outStr(json);      }     return null;   } protected void outStr(String str)</span>   {     try     {       response.setCharacterEncoding("UTF-8");       response.getWriter().write(str);     }     catch (Exception e)     {     }   } public static <T> String toJSONString(List<T> list)   {     JSONArray jsonArray = JSONArray.fromObject(list);          return jsonArray.toString();   } 

function selectBankCity(id){   $.ajax({     url:baseAddress+"queryCityInfo.do?provinceId="+id,     type:'get',     dataType:'json',     success:function(data){       $('#custBankArea').empty();       $('#custBankArea').append("<option >--請選擇城市信息--</option>");       for(var i=0;i<data.length;i++){         $('#custBankArea').append("<option value='"+data[i].id+"'>"+data[i].cityName+"</option>");       }     }   }); } 

@RequestMapping("queryProvince")   @ResponseBody   public Map<String, Object> queryProvince(HttpServletRequest request,HttpServletResponse response){     Map<String, Object> map = new HashMap<String, Object>();     try {       @SuppressWarnings("rawtypes")       List provinceList = personalService.queryProvince();       if(null != provinceList && provinceList.size() >0 ){         map.put("province", provinceList);       }      } catch (Exception e) {       // TODO Auto-generated catch block       e.printStackTrace();     }     return map;   } 

$.ajax({       url:baseAddress+"queryProvince.do",       type:"get",       success:function(resData){         var data = resData.province;         for(var i=0;i<data.length;i++){           //js實現           //var objs = document.getElementById("cusBankCity")           //objs.options.add(new Option(data[i].provinceName) ,data[i].id);           //jq實現           $("#cusBankCity").append("<option value='"+data[i].id+"'>"+data[i].provinceName+"</option>");         }       }     });