jsp前段页面复选框取当前行tb的值

   <tbody>
                    <c:forEach items="${incidentCarList}" var="obj" varStatus="increementId">
                        <tr>
                            <td><input type="checkbox" name="rowkey"></td>
                            <td><strong>${obj.hphm}</strong></td>
                            <td><strong>${obj.location}</strong></td>
                            <td><strong>${obj.passed_time}</strong></td>
                            <td><strong>
                                <button type="button" class="btn btn-default" title="伴随车辆"
                                        data-container="body" data-toggle="popover" data-placement="bottom"
                                        data-content="${obj.accompanyCar}">
                                        ${obj.accompanyCarCount}
                                </button>
                            </strong></td>
                            <td><strong>
                                <button type="button" class="btn btn-default" title="伴随imsi"
                                        data-container="body" data-toggle="popover" data-placement="bottom"
                                        data-content="${obj.accompanyImsi}">
                                        ${obj.accompanyImsiCount}
                                </button>
                            </strong></td>
                        </tr>
                    </c:forEach>
                    </tbody>