springmvc和js前端的数据传递和接收方式

    在springmvc中controller的结果集可通过json格式传到js前端接受，也可以通过Map传给前端，具体实现如下

1，通过json格式传递

   controller层实现如下

   

 @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)
	{
		try
        {
            response.setCharacterEncoding("UTF-8");
            response.getWriter().write(str);
        }
        catch (Exception e)
        {
        }
	}
public static  String toJSONString(List list)
	{
		JSONArray jsonArray = JSONArray.fromObject(list);
		
		return jsonArray.toString();
	}

  js端接受如下

  

function selectBankCity(id){
	
	$.ajax({
		url:baseAddress+"queryCityInfo.do?provinceId="+id,
		type:'get',
		dataType:'json',
		success:function(data){
			$('#custBankArea').empty();
			$('#custBankArea').append("--请选择城市信息--");
			for(var i=0;i"+data[i].cityName+"");
			}
		}
	});
}

2，通过Map传递

controller层实现如下

@RequestMapping("queryProvince")
	@ResponseBody
	public Map  queryProvince(HttpServletRequest request,HttpServletResponse response){
		Map map = new HashMap();
		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;
	}

js端接受如下

$.ajax({
			url:baseAddress+"queryProvince.do",
			type:"get",
			success:function(resData){
				var data = resData.province;
				for(var i=0;i"+data[i].provinceName+"");
				}
			}
		});