datatable每行中的数据转成json串传给后台，并将json转化为list

1.前端datatable中的数据

<div class="table-responsive">
    <table class="table table-hover" id="adslotRebateTableId">
        <thead>
        <tr height="89">
            <th style="display: none">Id</th>
            <th>媒体</th>
            <th>频道</th>
            <th>广告位</th>
            <th>代理返点</th>
            <th>客户返点</th>
        </tr>
        </thead>
        <tbody id="adslotRebateTbodyId">
        <c:forEach items="${orderItemList}" var="item">
            <tr height="89">
                <th style="display: none"><c:out value="${item.id}"/></th>
                <th><c:out value="${item.mediaName }"/></th>
                <th><c:out value="${item.channelType }"/></th>
                <th><c:out value="${item.slotName }"/></th>
                <th>
                    <select size="1" style="width:100%;height: 100%;" id="agentRule${item.id}">
                        <option value="">请选择</option>
                        <c:forEach items="${allAgentList.get(item.id)}" var="agent">
                                <option name="agentId" value="${agent.id}"
                                        <c:if test="${item.agentRebateRuleId==agent.id}">
                                            <c:out value="selected"/>
                                        </c:if>
                                >返点周期：
                                    <fmt:formatDate value="${agent.startDate}" pattern="yyyy-MM-dd"/>--
                                    <fmt:formatDate value="${agent.endDate}" pattern="yyyy-MM-dd"/>                                 
                                </option>
                        </c:forEach>
                    </select>
                </th>
                <th>
                    <select size="1" style="width:100%;height: 100%;" id="customerRule${item.id}">
                        <option value="">请选择</option>
                        <c:forEach items="${allCustomerList.get(item.id)}" var="customer">
                            <option name="customerId" value="${customer.id}"
                                    <c:if test="${item.customerRuleId==customer.id}">
                                        <c:out value="selected"/>
                                    </c:if>
                            >返点周期：
                                <fmt:formatDate value="${customer.startDate}" pattern="yyyy-MM-dd"/>--
                                <fmt:formatDate value="${customer.endDate}" pattern="yyyy-MM-dd"/>                               
                            </option>
                            </c:forEach>
                    </select>
                </th>
            </tr>
        </c:forEach>
        </tbody>
    </table>
</div>

表格界面如下图：

2.将表格中的每一行所要用的数据转成json串

<script type="text/javascript">
    $("#scheduleFormSubmit_2").click(function () {
        var tabLen = document.getElementById("adslotRebateTableId");
        var jsonT = "[";
        for (var i = 1; i < tabLen.rows.length; i++) {
            var orderItemId = tabLen.rows[i].cells[0].innerHTML;
//            console.log(orderItemId);
            var agentRule = $("#agentRule" + orderItemId + " option:selected").val();
//            console.log(agentRule);
            var customerRule = $("#customerRule" + orderItemId + " option:selected").val();
            jsonT += '{"id":' + tabLen.rows[i].cells[0].innerHTML + ',"agentRebateRuleId":"' + agentRule + '","customerRebateRuleId":"' + customerRule + '"},'
        }
        jsonT = jsonT.substr(0, jsonT.length - 1);
        jsonT += "]";
//        console.log(jsonT);
        $.ajax({
            type: 'post',
            dataType: 'html',
            url: '/td/operation/schedule/updateOrderItemRebate',
            data: "json=" + jsonT,
            success: function (data) {
//                tooltip("保存成功!");
                window.location.href = "/td/operation/schedule/index";
            },
            error: function () {
                tooltip("请求数据失败，可能是服务器开小差了");
            }
        })
    })
</script>

最终得到的json串如下：

3.后台接收json并转化为list

 public int updateOrderItemRebate(String json) {
        JSONArray jsonArr = JSONArray.fromObject(json);
//        List<?> list = JSONArray.toList(jsonArr);//参数1为要转换的JSONArray数据，参数2为要转换的目标数据，即List盛装的数据
        List<AdOrderItem> rulelist = (List<AdOrderItem>) JSONArray.toCollection(jsonArr, AdOrderItem.class);
        if(rulelist.size()!=0){
            return adOrderItemMapper.updateOrderItemRule(rulelist);
        }
        return 0;
    }