在项目中经常获取前台table中的数据,然后拼接传向后台,之前一直按照JSON格式拼接,但是非常容易出问题,

而且遇到了类似List<beans> list 这样的参数,springMVC转化为对象会报错;

      正确的做法是按下面这种做法

var json = {};
        	json['id']="${ret.id}";
        	json['remark']=$("#remark").val();
        	json['status']=$("#status").val();
        	for(var i=0;i<$('#tableContent').children().length;i++){
        		json['list[' + i +'].code'] = $('#tableContent').children().children()[1].innerText;
        		json['list[' + i +'].barCode'] = $('#tableContent').children().children()[3].innerText;
        		json['list[' + i +'].returnid'] = "${ret.id}";
        		json['list[' + i +'].returnNumber'] = $('#tableContent').children().children()[7].firstChild.value;
        		json['list[' + i +'].returnWeight'] = $('#tableContent').children().children()[8].firstChild.value;
        		json['list[' + i +'].availNumber'] = $('#tableContent').children().children()[9].firstChild.value;
        		json['list[' + i +'].availWeight'] = $('#tableContent').children().children()[10].firstChild.value;
        		json['list[' + i +'].scrapNumber'] = $('#tableContent').children().children()[11].firstChild.value;
        		json['list[' + i +'].scrapWeight'] = $('#tableContent').children().children()[12].firstChild.value;
        		json['list[' + i +'].totalMoney'] = $('#tableContent').children().children()[14].firstChild.value;
        	}

例如我们需要获取table中数据tableContent中的部分数据,然后直接将json放在ajax请求中的data中,而不是使用类似{"id":"${ret.id}"}这样的拼接,手动写真实太容易出错了;

var index = parent.layer.load();
            $.ajax({
                url: "${context_root}/list/checkReturn.action",
                type: 'post',
                async: true,
                cache: false,
                data:json,
                dataType: "json",
                success: function (data) {
                    parent.layer.close(index);
                    if (data.s == true) {
                        index = parent.layer.getFrameIndex(window.name);
                        parent.layer.msg("保存成功,正在刷新数据请稍后……", {icon: 1, time: 1000, shade: [0.1, '#fff']}, function () {
                            window.parent.location.reload();
                        });
                    } else {
                        parent.layer.alert(data.m, {icon: 2, title: "系统提示"});
                    }
                },
            }); 
        }

    @Transactional
    @RequestMapping(ReturnConstant.RETURN_CHECK_URL)
    public @ResponseBody Message checkReturn(ReturnToCheck ReturnToCheck  )
    {   

SpringMVC直接用对象接收即可

对象属性如下

public class ReturnToCheck {
private String id;//退货单Id
private String remark;
private String status;

private List<ReturnToCheckDetail> list;
get,set方法已省略

public class ReturnToCheckDetail {
private String code;
private String barCode;
private String returnid;
private Integer returnNumber;
private String returnWeight;
private Integer availNumber;
private String availWeight;
private Integer scrapNumber;
private String scrapWeight;
private String totalMoney;
get,set已省略