package ajax.ch3.treeview;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Vector;
public class treeviewRender {
static public String renderStatic(TreeviewElement treeElmt, boolean bHidden) {
StringBuffer content = new StringBuffer();
content.append("<li id=" + treeElmt.getID() + ">");//显示li元素
if (bHidden && treeElmt.canExpand())//如果可以展开并且初始化为隐藏,则显示展开图片，并添加showHide事件
content.append("<img src=images/plus.gif onClick=\"showHide('"
+ treeElmt.getID() + "')\">");
else if (treeElmt.canExpand())//如果可以展开,则显示折叠图片，并添加showHide事件
content.append("<img src=images/minus.gif onClick=\"showHide('"
+ treeElmt.getID() + "')\">");
else//否则显示空白图片
content.append("<img src=images/blank.gif>");
content.append("<img src=images/folder.gif><a href=\"#\"");//添加文件夹图片
if (treeElmt.canExpand())//如果可以展开，为节点添加showHide事件
content.append("onClick=\"showHide('" + treeElmt.getID() + "')\"");
content.append(">" + treeElmt.getNodeName() + "</a>");
if (treeElmt.canExpand()) {//如果可以展开，则用UL标记显示子结点
content.append("<ul");
if (bHidden)
content.append(" style=\"display:none;\" ");
content.append(">");
TreeviewElement[] elmts = treeElmt.getChildren();//获得此结点的子节点
for (int i = 0; i < elmts.length; i++)
content.append(renderStatic(elmts[i], bHidden));//递归调用显示子节点
content.append("</ul>");
}
content.append("</li>");//结束显示<li>元素
return content.toString();
}
static public TreeviewElement[] getTopCategory() {
String sql = "select category_id from product_category where parent_category_id=0";
ResultSet rs = DbManager.getResultSet(sql);// 执行sql语句并返回ResultSet
try {
rs.last();// 移动到最后一行
int row = rs.getRow();// 得到总记录数
if (row <= 0) {
return null;
} else {
Vector vData = new Vector();
rs.beforeFirst();
while (rs.next())
vData.add("" + rs.getInt("CATEGORY_ID"));
TreeviewElement[] children = new TreeviewElement[vData.size()];
for (int i = 0; i < vData.size(); i++) {
int id = Integer.parseInt((String) vData.get(i));
children[i] = new Category(id);
}
return children;
}
} catch (SQLException e) {
e.printStackTrace();
return null;
} finally {
try {// 最后关闭ResutltSet,Statement.并释放连接
if (rs != null)
rs.close();
if (rs.getStatement() != null)
rs.getStatement().close();
DbManager.releaseConnection();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
static public String renderSimple(TreeviewElement treeElmt) {
StringBuffer content = new StringBuffer();
content.append("<li id=" + treeElmt.getID() + "><a href=\"#\">");
content.append( treeElmt.getNodeName() + "</a>");
if (treeElmt.canExpand()) {
content.append("<ul>");
TreeviewElement[] elmts = treeElmt.getChildren();
for (int i = 0; i < elmts.length; i++)
content.append(renderSimple(elmts[i]));
content.append("</ul>");
}
content.append("</li>");
return content.toString();
}
static public String renderTreeViewAjax(TreeviewElement treeElmt,boolean bRenderChildren) {
StringBuffer content = new StringBuffer();
content.append("<li id="+treeElmt.getID()+">");
if (treeElmt.canExpand())
content.append("<img src=images/plus.gif onClick=\"getSubTree('"+treeElmt.getID()+"')\">");
else
content.append("<img src=images/blank.gif>");
content.append("<img src=images/folder.gif><a href=\"#\"");
if (treeElmt.canExpand())
content.append(" onClick=\"getSubTree('"+treeElmt.getID()+"')\"");
content.append(">"+treeElmt.getNodeName()+"</a>");
if ( bRenderChildren&&treeElmt.canExpand( ))
{
content.append("<ul>");
TreeviewElement[] elmts = treeElmt.getChildren();
for (int i=0;i<elmts.length;i++)
content.append(renderTreeViewAjax(elmts[i],false));
content.append("</ul>");
}
content.append("</li>");
return content.toString();
}
}
javascript全程指南
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2008-07-21
20:12:08
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javascript全程指南 （340个子文件） 
Category.class 4KB treeviewRender.class 4KB SearchSuggest.class 2KB SignUpServlet.class 2KB RegisterServlet.class 2KB MenuAction.class 2KB RegisterServlet.class 2KB RegisterServlet.class 2KB TipServlet.class 2KB NewsService.class 2KB ProductDAO.class 2KB DbManager.class 1KB TreeviewServlet.class 1KB News.class 1KB FrameServlet.class 1KB DbConnection.class 790B DbConnection.class 782B DbConnection.class 777B DbConnection.class 777B Product.class 701B TreeviewElement.class 285B google_drag.css 3KB css.css 585B css.css 585B tree.css 453B style.css 252B checkbox_list.data 206B Thumbs.db 13KB Thumbs.db 7KB Thumbs.db 5KB
start.gif 3KB 1.gif 2KB logo.gif 2KB loading.gif 2KB load.gif 1KB folder.gif 572B ok.gif 309B mouse.gif 251B plus.gif 200B minus.gif 197B fu.gif 191B fu.gif 191B order.gif 129B promo_list_top.gif 124B dot.gif 83B 2.gif 79B 1.gif 78B sheet.gif 75B blank.gif 54B fire.htm 9KB play.htm 8KB siCalendar.htm 7KB moveCalculator.htm 6KB ig_test.htm 6KB moveClock.htm 6KB main.htm 5KB volMenu.htm 5KB otherMenu.htm.htm 5KB clocks.htm 5KB flashM.htm 5KB Priority.HTM 4KB album.htm 4KB showSigns.htm 4KB AlphaM.htm 4KB definMenu.htm 4KB showAge.htm 3KB treeMenu2.htm 3KB getTimeInfo.htm 3KB bMenu.htm 3KB onlineTest.htm 3KB qqStyle.htm 3KB runNian.htm 3KB rollingText.htm 3KB nChange.HTM 3KB sloshing.htm 3KB cookies_Exam.htm 3KB menuDown.htm 3KB flash.htm 2KB interMenu.htm 2KB mouse_Bubble.htm 2KB flyFow.htm 2KB mouse_star.htm 2KB showMsg.htm 2KB snow.htm 2KB linkText.htm 2KB flyingText.htm 2KB mouse_Track.htm 2KB use_trans.htm 2KB use_Add.htm 2KB use_xslt2.htm 2KB visitCount.htm 2KB canDrag.htm 2KB onreadystatechange2.htm 2KB order.htm 2KB rolling.htm 2KB bomadeng.htm 2KB onreadystatechange1.htm 2KB flashAdv.htm 2KB timeInfo.htm 2KB use_xslt1.htm 2KB共 340 条
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