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jsp+javascript打造級連菜單的實例代碼
編輯:關於JavaScript     

 復制代碼 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企業級應用的首選):useBean id="user" scope="session" class="yava.fileapp.UserBean" />
  <%
    CDataSource ds=new CDataSource();  //數據聯結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級裡面有輸入第1級組織的子集,arr[總數目][部門]
  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>部門選擇</font></td>
    <td bgcolor="#336699" class="buttons" align=center><font color=#ffffff>人名選擇</font></td>

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