用jquery方法获取页面的值

1.页面获取向后台传的值

var data = new Object();
var index = 0;
var listOrderDetails = [],order_content = "";
$(".onlyDoubles").each(function() {
    var number=parseFloat($(this).val());
    var name=$(this).data('name');
    var price=$(this).data('price');
    var id=$(this).data('id');
    var order_money=parseFloat($("#money"+fl_id+userids).val()).toFixed(2);
    data["listOrderDetails[" + index + "]['number']"] = number;
    data["listOrderDetails[" + index + "]['name']"] = name;
    data["listOrderDetails[" + index + "]['price']"] = price;
    data["listOrderDetails[" + index + "]['order_money']"] = order_money;
    data["listOrderDetails[" + index + "]['id']"] = id;


    index++;
    if(number!=0){
        order_content += "," + number +name;
        data.order_content = order_content.substring(1, order_content.length);
    };

});

2.后台接收前台页面传的值（controller）

 HashMap param = new HashMap(UtilBeanMap.getParameterMap(request));

前台传过来的参数一般都是在param里存放

3.service层

Map dataMap = new HashMap(UtilBeanMap.getParameterMap(request));//可有可无

param.putAll(UtilBeanMap.getSessionMap());
String content = (String) param.get("order_content");//接收单个的值并强制转化为String类型

//由于我们在页面定义了listOrderDetails列表，所以在循环值的时候要这样写
for (Map map : baseParam.getListOrderDetails()) {
param.put("id", map.get("id"));
param.put("price", map.get("price"));
baseDao.update("UPDATE Student  set number=" + number1 + "WHERE id = :id", param);
        }