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jsp+javascript打造级连菜单-JSP教程,Jsp/Servlet

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<%@ page import="java.util.date,yava.fileapp.*,java.sql.*;"

contenttype="text/html;charset=gb2312" pageencoding="gb2312"

%>

<style>

.f9{ font-size:9pt; }

.bgc{ background-color:#aecaf9; color: #0033ff }

.buttons{font-family:arial; font-size:13px; font-weight:bold; background-color:#6796e4; color:white; border-top: solid 2px #aacafb;

border-bottom: solid 1px #4e7dc1;

border-left: solid 1px #aecaf9;

border-right: solid 1px #5679bd;

padding:1px;

margin:0px;}

</style>

<script language="javascript">

<!–

function rv()

{

var val="";

for(i=0;i<combo_box.list2.length;i++){

val+=","+combo_box.list2[i].value;

}

if(val.charat(0)==","){

val=val.substr(1,val.length);

}

opener.form1.frecname.value=val;

self.close();

}

//–>

</script>

<body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">

<jsp:usebean id="user" scope="session" class="yava.fileapp.userbean" />

<%

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<temp;i++){

if(arr[i][1]==id){//如果相等,证明在第2级里面有输入第1级组织的子集,arr[总数目][部门]

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><font color=#ffffff>部门选择</font></td>

<td bgcolor="#336699" class="buttons" align=center><font color=#ffffff>人名选择</font></td>

<td bgcolor="#336699" class="buttons" align=center nowrap><font color=#ffffff>添加/移除</font></td>

<td bgcolor="#336699" class="buttons" align=center><font color=#ffffff>最终人</font></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>

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