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| 应用实例 JSP+JavaScript打造级连菜单 |
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发布者: 发布时间:2007-09-06 |
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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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