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Example code for creating a cascading menu Using jsp + javascript

Source: Internet
Author: User
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Copy codeThe Code is as follows: <% @ 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 (preferred for SUN Enterprise Applications): useBean id = "user" scope = "session" class = "yava. fileapp. UserBean"/>
<%
CDataSource ds = new CDataSource (); // data connection Bean instance
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 ();
Rs1_stmt.exe cuteQuery (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; // initialize the length of the 2nd-level menu. The subscript starts from 0.
Var I = 0;
Document. combo_box.city.options [0] = new Option (-------,);
For (I = 0; I <temp; I ++ ){
If (arr [I] [1] = id) {// if they are equal, it is proved that there is a subset of the 2nd-level organization input in level 1st, and arr [total number] [Department]
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> select a department </font> </td>
<Td bgcolor = "#336699" class = "buttons" align = center> <font color = # ffffff> name selection </font> </td>

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Related Keywords:
code for creating website creating form in html using javascript sql code for creating database sample html code for creating website javascript code injection example javascript cookies example code jsp sample code
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