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SUN認證

用JSP和JavaScript打造級連菜單

時間:2024-09-29 12:55:38 SUN認證 我要投稿
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用JSP和JavaScript打造級連菜單

  JavaScript引擎,為瀏覽器的一部分,廣泛用于客戶端的腳本語言,最早是在HTML(標準通用標記語言下的一個應用)網頁上使用,用來給HTML網頁增加動態功能。下面小編準備了關于用JSP和JavaScript打造級連菜單的文章,提供給大家參考!

 <%@ 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(); //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級里面有輸入第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>
  <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>最終人</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">請選擇部門 ---></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="選好了!" onclick="rv();"></td>
  </tr>
  </table>
  </form>
  <script language="JavaScript">
  //人名移動
  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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