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jsp+javascript打造级连菜单
摘要: 菜单
<%@ page import="java.util.Date,yava.fileapp.*,java.sql.*;"
contentType="text/html;charset=GB2312" pageEncoding="GB2312"
%>
<script LANGUAGE="JavaScript">
//
</script>
<body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<%
CDataSource ds=new CDataSource(); //数据联结Bean实例
java.sql.Connection conn=ds.getConnection();
java.sql.Statement stmt=null;
java.sql.ResultSet rs=null;
CDataCheck dc=new CDataCheck();
%>
<%
String sqlu="SELECT t1.fno, t1.fname, t2.fname AS fdept FROM tuser t1 LEFT OUTER JOIN TDept t2 ON t1.fdept = t2.fno order by t2.fname";
stmt=conn.createStatement();
rs=stmt.executeQuery(sqlu);
%>
<script language='Javascript'>
arr = new Array();
<% int temp=0;
while(rs.next())
{
%>
arr[<%=temp%>]=new Array("<%=rs.getString("fname")%>","<%=rs.getString("fdept")%>");
<%
temp = temp + 1;
}
%>
temp=<%=temp%>;
function ChangeLocation(id){
document.combo_box.city.length=0; //初始化第2级菜单的长度，下标从0开始
var i = 0;
document.combo_box.city.options[0]=new Option('-------','');
for(i=0;i
document.combo_box.city.options[document.combo_box.city.length] = new Option(arr[i][0], arr[i][0]);
}
}
}
</script>
<form name="combo_box">
<table border="0" cellspacing="0" cellpadding="0" height="210" width="59">
<tr height="24">
<td bgcolor="#336699" class="buttons" align=center>部门选择</td>
<td bgcolor="#336699" class="buttons" align=center>人名选择</td>
<td bgcolor="#336699" class="buttons" align=center nowrap>添加/移除</td>
<td bgcolor="#336699" class="buttons" align=center>最终人</td>
</tr>
<tr>
<td>
<select multiple id=prov name="prov" onchange="ChangeLocation(combo_box.prov.options[combo_box.prov.selectedIndex].text);" style="width:150;height:200" class="bgc">
<option value="0">请选择部门 -</option>
<%
String sqld="SELECT * FROM tdept";
stmt=conn.createStatement();
rs=stmt.executeQuery(sqld);
while(rs.next())
{
%>
<option name="<%=rs.getString("fno")%>"><%=rs.getString("fname")%></option>
<%
}
%>
</select>
</td>
<td>
<select multiple id=city style="width:150;height:200" class="bgc">
</select>
</td>
<td nowrap align="center" class="bgc">
<input type="button" onClick="move(this.form.list2,this.form.city)" value="<<" class="buttons">
<input type="button" onClick="move(this.form.city,this.form.list2)" value=">>" class="buttons">
</td>
<td>
<select multiple size="10" name="list2" style="width:150;height:200" class="bgc">
</select>
</td>
</tr>
<tr class="bgc">
<td colspan="4" align="center"><input type="button" name="button1" class="buttons" value="选好了！" onclick="rv();"></td>
</tr>
</table>
</form>
<script language="JavaScript">
//人名移动
function move(fbox, tbox) {
var arrFbox = new Array();
var arrTbox = new Array();
var arrLookup = new Array();
var i;
for (i = 0; i < tbox.options.length; i++) {
arrLookup[tbox.options[i].text] = tbox.options[i].value;
arrTbox[i] = tbox.options[i].text;
}
var fLength = 0;
var tLength = arrTbox.length;
for(i = 0; i < fbox.options.length; i++) {
arrLookup[fbox.options[i].text] = fbox.options[i].value;
if (fbox.options[i].selected && fbox.options[i].value != "") {
arrTbox[tLength] = fbox.options[i].text;
tLength++;
}
else {
arrFbox[fLength] = fbox.options[i].text;
fLength++;
}
}
arrFbox.sort();
arrTbox.sort();
fbox.length = 0;
tbox.length = 0;
var c;
for(c = 0; c < arrFbox.length; c++) {
var no = new Option();
no.value = arrLookup[arrFbox[c]];
no.text = arrFbox[c];
fbox[c] = no;
}
for(c = 0; c < arrTbox.length; c++) {
var no = new Option();
no.value = arrLookup[arrTbox[c]];
no.text = arrTbox[c];
tbox[c] = no;
}
}
</script>
</body>