jsp+javascript打造級連菜單的實例代碼

2024-05-06 15:46:54

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jsp+javascript打造級連菜單的實例代碼，需要的朋友可以參考一下

復(fù)制代碼代碼如下:

<%@ 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(SUN企業(yè)級應(yīng)用的首選):useBean scope="session" />
<%
CDataSource ds=new CDataSource(); //數(shù)據(jù)聯(lián)結(jié)Bean實例
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級菜單的長度，下標從0開始
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，證明在第2級里面有輸入第1級組織的子集,arr[總數(shù)目][部門]
document.combo_box.city.options[document.combo_box.city.length] = new Option(arr[i][0], arr[i][0]);
}
}
}
</script>