select菜单实现二级联动

<span style="white-space:pre"> </span><tr> <th>执行人<b>*</b></th> <td> <select name="jdcld.ZXDW" id="zxrDw" onchange="zxDwChange()" class="select" style="width:230px"> <option value="">选择部门</option> <#if zxrBm??&&zxrBm?size!=0> <#list zxrBm as bm> <option value="${bm['id']}">${bm['mc']}</option> </#list> </#if> </select> <select name="jdcld.ZXRID" id="zxrId" class="select" style="width:230px"> <option value="">选择民警</option> </select> <input type="hidden" name="jdcld.ZXRXM"/> </td> <span style="white-space:pre"> </span></tr>

 

function zxDwChange() { var bmid = $("#zxrDw").val(); alert(bmid); $("#zxrId").empty(); var text = "<option value=''>选择民警</option>"; $.post("${base}/zfjd/zxrList", {"bmid":bmid}, function(data) { if (data != "") { var dataArr = eval('(' + data + ')'); for (var i in dataArr) { text += "<option value='" + dataArr[i].value + "'>" + dataArr[i].title + "</option>"; } if (text == "<option value=''>选择民警</option>") { $("#zxrId").append("<option value=''>选择民警</option>"); } else $("#zxrId").append(text); } else { $("#zxrId").append("<option value=''>选择民警</option>"); } }); }

 

补充：web前端 , HTML/CSS  ,