我从网上找代码改的两个二级联动搜索,在同一个页面中,但是教师这个二级联动能正常使用,学生的二级联动第一个下拉列表有内容,是:1班2班,第二个下拉列表什么都没有啊,不知道为什么,请高手指点指点啊,谢谢了
<script language="JavaScript" type="text/javascript">
<%@ page contentType="text/html;charset=utf-8" %>
function removeOptions(selectObj)
{
if (typeof selectObj != 'object')
{
selectObj = document.getElementById(selectObj);
}
var len = selectObj.options.length;
for (var i=0; i < len; i++)
{
selectObj.options[0] = null;
}
}
function setSelectOption(selectObj, optionList, firstOption, selected)
{
if (typeof selectObj != 'object')
{
selectObj = document.getElementById(selectObj);
}
removeOptions(selectObj);
var start = 0;
if (firstOption)
{
selectObj.options[0] = new Option(firstOption, '');
start ++;
}
var len = optionList.length;
for (var i=0; i < len; i++)
{
selectObj.options[start] = new Option(optionList[i].txt, optionList[i].val); if(selected == optionList[i].val)
{
selectObj.options[start].selected = true;
}
start ++;
}
}
//-->
</script>教师:
<script language="JavaScript" type="text/javascript">
var cityArr = [];
cityArr['1'] = [
{txt:'C1', val:'4'}, {txt:'C2', val:'5'}, {txt:'C3', val:'6'}
];
cityArr['2'] = [
{txt:'D1', val:'10'}, {txt:'D2', val:'11'}, {txt:'D3', val:'12'}
];
function setCity(province)
{ setSelectOption('deptId', cityArr[province], '-请选择-');}
</script>
<select name="province" style="width:100" id="province" onchange="if(this.value != '') setCity(this.options[this.selectedIndex].value);">
<option value="">-请选择-</option>
<option value="1">第一办公室</option>
<option value="2">第二办公室</option></select>
<select name="deptId" style="width:180" id="city" onchange="window.location=('/fzs/servlet/SelectServlet3?deptId='+this.options[this.selectedIndex].value+'')">
<option value="">-请选择-</option>
</select>
<p>-------------------------------------------------------------------------------------------------------
<script language="JavaScript" type="text/javascript">
<%@ page contentType="text/html;charset=utf-8" %>function removeOptions1(selectObj1)
{
if (typeof selectObj1 != 'object1')
{
selectObj1 = document.getElementById(selectObj1);
}
var len1 = selectObj1.options.length1;
for (var i=0; i < len1; i++)
{
selectObj1.options[0] = null;
}
}
function setSelectOption1(selectObj1, optionList1, firstOption1, selected1)
{
if (typeof selectObj1 != 'object1')
{
selectObj1 = document.getElementById(selectObj1);
}
removeOptions1(selectObj1);
var start1 = 0;
if (firstOption1)
{
selectObj1.options[0] = new Options(firstOption1, '');
start1 ++;
}
var len1 = optionList1.length1;
for (var i=0; i < len1; i++)
{
selectObj1.options[start1] = new Options(optionList1[i].txt, optionList1[i].val);
if(selected1 == optionList1[i].val)
{
selectObj1.options[start1].selected1 = true;
}
start1 ++;
}
}
//-->
</script><p>
学生:
<script language="JavaScript" type="text/javascript">
var cityArr1 = [];
cityArr1['1'] = [
{txt:'A1', val:'4'}, {txt:'A2', val:'5'}, {txt:'A3', val:'6'}
];
cityArr1['2'] = [
{txt:'B1', val:'10'}, {txt:'B2', val:'11'}, {txt:'B3', val:'12'}
];
function setCity1(province1)
{ setSelectOption1('deptId1', cityArr1[province1], '-请选择-');}
</script>
<select name="province1" style="width:100" id="province1" onchange="if(this.value != '') setCity1(this.options[this.selectedIndex].value);">
<option value="">-请选择-</option>
<option value="1">1班</option>
<option value="2">2班</option></select>
<select name="deptId1" style="width:180" id="city1" onchange="window.location=('/fzs/servlet/SelectServlet3?deptId1='+this.options[this.selectedIndex].value+'')">
<option value="">-请选择-</option>
</select>
<script language="JavaScript" type="text/javascript">
<%@ page contentType="text/html;charset=utf-8" %>
function removeOptions(selectObj)
{
if (typeof selectObj != 'object')
{
selectObj = document.getElementById(selectObj);
}
var len = selectObj.options.length;
for (var i=0; i < len; i++)
{
selectObj.options[0] = null;
}
}
function setSelectOption(selectObj, optionList, firstOption, selected)
{
if (typeof selectObj != 'object')
{
selectObj = document.getElementById(selectObj);
}
removeOptions(selectObj);
var start = 0;
if (firstOption)
{
selectObj.options[0] = new Option(firstOption, '');
start ++;
}
var len = optionList.length;
for (var i=0; i < len; i++)
{
selectObj.options[start] = new Option(optionList[i].txt, optionList[i].val); if(selected == optionList[i].val)
{
selectObj.options[start].selected = true;
}
start ++;
}
}
//-->
</script>教师:
<script language="JavaScript" type="text/javascript">
var cityArr = [];
cityArr['1'] = [
{txt:'C1', val:'4'}, {txt:'C2', val:'5'}, {txt:'C3', val:'6'}
];
cityArr['2'] = [
{txt:'D1', val:'10'}, {txt:'D2', val:'11'}, {txt:'D3', val:'12'}
];
function setCity(province)
{ setSelectOption('deptId', cityArr[province], '-请选择-');}
</script>
<select name="province" style="width:100" id="province" onchange="if(this.value != '') setCity(this.options[this.selectedIndex].value);">
<option value="">-请选择-</option>
<option value="1">第一办公室</option>
<option value="2">第二办公室</option></select>
<select name="deptId" style="width:180" id="city" onchange="window.location=('/fzs/servlet/SelectServlet3?deptId='+this.options[this.selectedIndex].value+'')">
<option value="">-请选择-</option>
</select>
<p>-------------------------------------------------------------------------------------------------------
<script language="JavaScript" type="text/javascript">
<%@ page contentType="text/html;charset=utf-8" %>function removeOptions1(selectObj1)
{
if (typeof selectObj1 != 'object1')
{
selectObj1 = document.getElementById(selectObj1);
}
var len1 = selectObj1.options.length1;
for (var i=0; i < len1; i++)
{
selectObj1.options[0] = null;
}
}
function setSelectOption1(selectObj1, optionList1, firstOption1, selected1)
{
if (typeof selectObj1 != 'object1')
{
selectObj1 = document.getElementById(selectObj1);
}
removeOptions1(selectObj1);
var start1 = 0;
if (firstOption1)
{
selectObj1.options[0] = new Options(firstOption1, '');
start1 ++;
}
var len1 = optionList1.length1;
for (var i=0; i < len1; i++)
{
selectObj1.options[start1] = new Options(optionList1[i].txt, optionList1[i].val);
if(selected1 == optionList1[i].val)
{
selectObj1.options[start1].selected1 = true;
}
start1 ++;
}
}
//-->
</script><p>
学生:
<script language="JavaScript" type="text/javascript">
var cityArr1 = [];
cityArr1['1'] = [
{txt:'A1', val:'4'}, {txt:'A2', val:'5'}, {txt:'A3', val:'6'}
];
cityArr1['2'] = [
{txt:'B1', val:'10'}, {txt:'B2', val:'11'}, {txt:'B3', val:'12'}
];
function setCity1(province1)
{ setSelectOption1('deptId1', cityArr1[province1], '-请选择-');}
</script>
<select name="province1" style="width:100" id="province1" onchange="if(this.value != '') setCity1(this.options[this.selectedIndex].value);">
<option value="">-请选择-</option>
<option value="1">1班</option>
<option value="2">2班</option></select>
<select name="deptId1" style="width:180" id="city1" onchange="window.location=('/fzs/servlet/SelectServlet3?deptId1='+this.options[this.selectedIndex].value+'')">
<option value="">-请选择-</option>
</select>
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function removeOptions(selectObj)
{
if (typeof selectObj != 'object')
{
selectObj = document.getElementById(selectObj);
}
var len = selectObj.options.length;
for (var i=0; i < len; i++)
{
selectObj.options[0] = null;
}
}
function setSelectOption(selectObj, optionList, firstOption, selected)
{
if (typeof selectObj != 'object')
{
selectObj = document.getElementById(selectObj);
}
removeOptions(selectObj);
var start = 0;
if (firstOption)
{
selectObj.options[0] = new Option(firstOption, ''); start ++;
} var len = optionList.length; for (var i=0; i < len; i++)
{
selectObj.options[start] = new Option(optionList[i].txt, optionList[i].val); if(selected == optionList[i].val)
{
selectObj.options[start].selected = true;
}
start ++;
}
}
//-->
</script> 教师:
<script language="JavaScript" type="text/javascript">
var cityArr = [];
cityArr['1'] = [
{txt:'C1', val:'4'}, {txt:'C2', val:'5'}, {txt:'C3', val:'6'}
];
cityArr['2'] = [
{txt:'D1', val:'10'}, {txt:'D2', val:'11'}, {txt:'D3', val:'12'}
];
function setCity(province)
{ setSelectOption('deptId', cityArr[province], '-请选择-');}
</script>
<select name="province" style="width:100" id="province" onchange="if(this.value != '') setCity(this.options [this.selectedIndex].value);">
<option value="">-请选择- </option>
<option value="1">第一办公室 </option>
<option value="2">第二办公室 </option> </select>
<select name="deptId" style="width:180" id="city" onchange="window.location=('/fzs/servlet/SelectServlet3? deptId='+this.options[this.selectedIndex].value+'')">
<option value="">-请选择- </option>
</select>
<p>-------------------------------------------------------------------------------------------------------
<script language="JavaScript" type="text/javascript">
function removeOptions1(selectObj1)
{
if (typeof selectObj1 != 'object')
{
selectObj1 = document.getElementById(selectObj1);
}
var len1 = selectObj1.options.length;
for (var i=0; i < len1; i++)
{
selectObj1.options[0] = null;
}
}
function setSelectOption1(selectObj1, optionList1, firstOption1, selected1)
{
if (typeof selectObj1 != 'object')
{
selectObj1 = document.getElementById(selectObj1);
}
removeOptions1(selectObj1);
var start1 = 0;
if (firstOption1)
{
selectObj1.options[0] = new Option(firstOption1, ''); start1 ++;
}
var len1 = optionList1.length; for (var i=0; i < len1; i++)
{
selectObj1.options[start1] = new Option(optionList1[i].txt, optionList1[i].val); if(selected1 == optionList1[i].val)
{
selectObj1.options[start1].selected = true;
} start1 ++;
}
}
//-->
</script> <p>
学生:
<script language="JavaScript" type="text/javascript">
var cityArr1 = [];
cityArr1['1'] = [
{txt:'A1', val:'4'}, {txt:'A2', val:'5'}, {txt:'A3', val:'6'}
];
cityArr1['2'] = [
{txt:'B1', val:'10'}, {txt:'B2', val:'11'}, {txt:'B3', val:'12'}
];
function setCity1(province1)
{
setSelectOption1('deptId1', cityArr1[province1], '-请选择-'); }
</script>
<select name="province1" style="width:100" id="province1" onchange="if(this.value != '') setCity1(this.options [this.selectedIndex].value);">
<option value="">-请选择- </option>
<option value="1">1班 </option>
<option value="2">2班 </option> </select>
<select name="deptId1" style="width:180" id="city1" onchange="window.location=('/fzs/servlet/SelectServlet3? deptId1='+this.options[this.selectedIndex].value+'')">
<option value="">-请选择- </option>
</select>我把jsp标签去掉了 html保存就可以运行了 这个联动明显是的copy了 某个城市联动的js 不过代码写的 有点太乱了吧