如何写TreeView(JAVA)

Z时代
2024-01-10
分类：综合

java

如何写TreeView(JAVA)

<%@ page language="java" import="java.util.*"%>
<%@ page contentType="text/html;charset=gb2312"%>

<%@ page import="java.io.IOException" %>
<%@ page import="java.sql.SQLException" %>
<%@ page import="java.text.DateFormat" %>
<%@ page import="java.text.ParseException" %>
<%@ page import="java.text.SimpleDateFormat" %>
<%@ page import="java.util.Hashtable" %>

<%@ page import="com.egosystems.balasbrid.main" %>
<%@ page import="com.egosystems.apputil.AppInfo" %>
<%@ page import="com.egosystems.apputil.Const" %>
<%@ page import="com.egosystems.apputil.Utility" %>
<%@ page import="com.egosystems.dbcore.DBGetResult" %>
<%@ page import="com.egosystems.dbcore.DataTable" %>
<%@ page import="com.egosystems.dbcore.DataTable.DataRow" %>
<%@ page import="com.egosystems.taglib.DataGrid" %>
<%@ page import="com.egosystems.taglib.Paginate" %>
<%@ page import="com.egosystems.dbcore.ParameterDirection" %>
<%@ page import="com.egosystems.dbcore.Parm_Struct" %>
<%@ page import="com.egosystems.taglib.TreeView" %>
<%@ page import="com.egosystems.webcore.BasePage" %>

<%@ taglib uri="/WEB-INF/EgoTag.tld" prefix="EGO"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<%
DBGetResult dbgr = new DBGetResult();
dbgr.openConn();

DataTable dataTable1 = null;
DataTable dataTable2 = null;
DataTable dataTable3 = null;

TreeView TreeView1 = new TreeView();
TreeView1.imagesBaseUrl = "TreeViewImages/";
TreeView1.lineImagesFolderUrl = "TreeViewImages/lines/";
TreeView1.nodeImageUrl = "file.gif";
TreeView1.parentNodeImageUrl = "folder.gif";
TreeView1.expandedParentNodeImageUrl = "folder_open.gif";

TreeView1.Style = "backgroundFFFFFF;";
String Sql1 = "select 编号,区域名称,guid from 支局区域";
dataTable1 = dbgr.GetDataTable(Sql1);

for (int i = 0; i < dataTable1.Rows.length; i++)
{
DataRow objdr = dataTable1.Rows;

TreeView.Node treeNode = TreeView1.CreateNode();
//treeNode.Text = objdr.Item("区域名称").ToString();
treeNode.Text = "<a>"+objdr.Item("区域名称").ToString()+"</a>";
treeNode.Url ="";
treeNode.Target = "main";
treeNode.Expanded = false;
QYId = objdr.Item("编号").ToString();

Sql2 = "select 支局编号,支局名,服务区域编号,guid from 支局信息 where ','+服务区域编号 like '%"+QYId+"%'";
dataTable2 = dbgr.GetDataTable(Sql2);

for (int j = 0; j < dataTable2.Rows.length; j++)
{
objdr = dataTable2.Rows[j];
TreeView.Node treeNode2 = TreeView1.CreateNode();

treeNode2.Text = "<a>"+objdr.Item("支局名").ToString()+"</a>";

treeNode2.Target = "main";
treeNode2.Expanded = false;

Sql3 = "select 投递名称,编号,guid from 投递段 where charindex(编号,'"+objdr.Item("服务区域编号").ToString()+"',1)>0 and 区域编号='"+QYId+"'";
dataTable3 = dbgr.GetDataTable(Sql3);

for (int k = 0; k < dataTable3.Rows.length; k++)
{
objdr = dataTable3.Rows[k];
TreeView.Node treeNode3 = TreeView1.CreateNode();
treeNode3.Text = "<a>"+objdr.Item("投递名称").ToString()+"</a>";

treeNode3.Target = "main";
treeNode3.Expanded = false;
treeNode2.Add(treeNode3);
}
treeNode.Add(treeNode2);
}
}
request.setAttribute("treeViewObj", TreeView1);

%>

<script type="text/javascript">
function setTreeSize()
{
var treeDiv = document.getElementById("tree");
var h = parseInt(document.body.offsetHeight);
var w = parseInt(document.body.offsetWidth);
if(treeDiv != undefined)
{
if(h > 25)
{
treeDiv.style.height = h-325;
}
//treeDiv.style.width = w;
}

}
window.onload = setTreeSize;
window.onresize = setTreeSize;
</script>

<html>
<head>
<title><title>
<script src="https://www.cnblogs.com/js/TreeViewExpand.js"></script>
</head>
<body>
<div />
</div>
</body>
</html>