使用jQuery向链接添加参数

我不熟悉JavaScript/jQuery。我有以下由框架自动生成的HTML代码

<tr class="alternate-row">
    <td>17 July, 2012</td>
    <td>AM Shipment</td>
    <td>Generated</td>
    <td>
        <form method="post" action="" id="ListTruckSheets_o_7" class="basic-form" onsubmit="javascript:submitFormDisableSubmits(this)" name="ListTruckSheets_o_7">//I have the name of this form.
            <input type="hidden" name="shipmentId"  value="10310" id="ListTruckSheets_shipmentId_o_7">
            <input type="hidden" name="Report" id="truckSheet_o_7" onclick="javascript:setSelectedRoute(this, 10310);">
            <input type="hidden" name="abstractReport" id="routeAbstract_o_7" onclick="javascript:setSelectedRoute(this, 10310);">
            <input type="hidden" name="milkDeliverySchedule" id="deliverySchedule_o_7"  onclick="javascript:setSelectedRoute(this, 10310);">
            <input type="hidden" name="cancelShipment" id="ListTruckSheets_cancelShipment_o_7">
        </form>
        <td>
            <a class="buttontext" href="/myportal/control/KVGenerateTruckSheet.txt?shipmentId=10310&amp;reportTypeFlag=trucksheet"  target="_blank" onclick="javascript:setSelectedRoute(this, 10310);" title="Report">Truck Sheet Report</a>
        </td>
        <td>
            <a class="buttontext" href="/myportal/control/KVGenerateTruckSheet.txt?shipmentId=10310&amp;reportTypeFlag=abstract" target="_blank" onclick="javascript:setSelectedRoute(this, 10310);" title="Abstract Report">Route Abstract Report</a>
        </td>
        <td>
            <a class="buttontext" href="/myportal/control/MilkDeliveryScheduleReport.txt?hipmentId=10310&amp;reportTypeFlag=milkDeliverySchedule" target="_blank" onclick="javascript:setSelectedRoute(this, 10310);" title="Milk Delivery Schedule">Delivery Schedule</a>
        </td>
        <td>
            <form method="post" action="/myportal/control/cancelLMSShipment" target="_blank"    onsubmit="javascript:submitFormDisableSubmits(this)" name="ListTruckSheets_o_7_0_o_cancelShipment">
                <input name="shipmentId" value="10310" type="hidden">
            </form>
            <a class="buttontext" href="javascript:document.ListTruckSheets_o_7_0_o_cancelShipment.submit()">Cancel</a>
        </td>
</tr>

因此，可能是，我需要找到父tr并返回到特定的td并将resultUrl设置为它。我不知道怎么做。我希望我的问题清楚

您可以对此进行测试：

form
  .closest('tr')   // go parent tr of form
  .find('.specific_selected_td') // find td, here specific_selected_td is 
                                 // assumed class to selected td
                                 // you may have something different 
  .find('a')  // find anchor tag within that specific td
  .attr('href', resultUrl); // set href

编辑后 改变

$('.buttontext').attr('href', resultUrl); 

到

---

此处，

existingUrl

指的是单击的

a

从哪里获取文本的选项？您好。。我现在有一个新问题。“attr（'href'，resultur）；”正在设置新的url。但在每次单击时，参数（“routeId”我附加到“existingUrl”的参数）可能会更改。因此，每次单击时，我都需要用新参数替换旧参数，否则我可能会重新加载页面，但重新加载的问题是，用户可能不知道他们以前选择了哪个下拉元素。关于如何做的任何想法。提前谢谢。。

$('.buttontext').attr('href', resultUrl); 

$(existingUrl).attr('href', resultUrl);