1）先創(chuàng )建一棵樹(shù)
menuTree = new Ext.tree.TreePanel({});
2）增加右擊事件
menuTree.on('contextmenu',showRightClickMenu,RightClickMenu);
var RightClickMenu = new Ext.menu.Menu({
//右擊事件
items:[{
xtype:"button",
text:"添加節點(diǎn)",
icon:"images/icon/menuitem.gif",
pressed:true,
handler : function(tree) {
onInsertNode();
}
},{
xtype:"button",
text:"修改節點(diǎn)",
icon:"images/icon/menuitem.gif",
pressed:true,
handler : function() {
onUpdate();
}
},{
xtype:"button",
text:"刪除節點(diǎn)",
icon:"images/icon/menuitem.gif",
pressed:true,
handler : function(tree) {
onDeleteNode();
}
}]
});
function showRightClickMenu(node,e)
{
//先讓該節點(diǎn)被選中
node.select();
//參數node是右擊的那個(gè)節點(diǎn)，即事件源
//參數e是事件對象
this.showAt(e.getPoint());
}
3）未與數據庫相連，只是直接在樹(shù)上顯示
function onInsertNode()
{
Ext.Msg.prompt('請輸入新建的節點(diǎn)名稱(chēng)' , '新建標準名稱(chēng)' , this.onInsertNodePrompt , this) ;
}
function onInsertNodePrompt(btn , text)
{
if(btn == 'ok')
{
var selectedNode = menuTree.getSelectionModel().getSelectedNode();
var selectedParentNode = selectedNode.parentNode;
var newNode = new Ext.tree.TreeNode({
text : text
});
if (selectedParentNode == null) {
selectedNode.appendChild(newNode);
}
else
{
selectedParentNode.insertBefore(newNode, selectedNode);
}
setTimeout(function() {
treeEditor.editNode = newNode;
treeEditor.startEdit(newNode.ui.textNode);
}, 10);
}
function onDeleteNode()
{
Ext.Msg.confirm('系統提示' , '你是否確定刪除此標準?' , this.onDeleteNodeConfirm , this);
};
function onDeleteNodeConfirm(btn)
{
if(btn == 'yes')
{
var selectedNode = menuTree.getSelectionModel().getSelectedNode();
selectedNode.remove();
}
}
function onUpdate()
{
Ext.Msg.confirm('系統提示' , '你是否確定修改此標準?' , this.onUpdateNode , this);
};
function onUpdateNode()
{
var selectedNode = menuTree.getSelectionModel().getSelectedNode();
Ext.Msg.prompt('請輸入修改的節點(diǎn)名稱(chēng)' , '修改名稱(chēng)' , this.onUpdateNodePrompt , this , false , selectedNode.text) ;
}
function onUpdateNodePrompt(btn , text)
{
if(btn == 'ok')
{
var selectedNode = menuTree.getSelectionModel().getSelectedNode();
selectedNode.setText(text) ;
setTimeout(function() {
treeEditor.editNode = selectedNode;
treeEditor.startEdit(selectedNode.ui.textNode);
}, 10);
}
}
4）與數據庫相連，也是只是直接在樹(shù)上顯示
function onInsertNode()
{
Ext.Msg.prompt('請輸入新建的節點(diǎn)名稱(chēng)' , '新建標準名稱(chēng)' , this.onInsertNodePrompt , this) ;
}
function onInsertNodePrompt(btn , text)
{
if(btn == 'ok')
{
var selectedNode = menuTree.getSelectionModel().getSelectedNode();
Ext.Ajax.request({
url: action的路徑,
method:'post',
params:{name:text,cid:selectedNode.id},
success: function(response, option)
{
var result = response.responseText;
if(result.match('ok'))
{
alert('新增成功!');
menuTree.root.reload();
root.expand();
}
},
failure: function(response, option)
{
}
});
}
}
該action的路徑直接到一個(gè)jsp頁(yè)面
<
%@page contentType="application/json;charset=utf-8" import="org.springframework.web.context.support.*,org.springframework.core.io.*,org.springframework.beans.factory.*,org.springframework.beans.factory.xml.*,org.springframework.context.*,org.springframework.context.support.*,com.cssrc.bean.*,com.cssrc.dao.impl.*,com.cssrc.dao.*,java.util.List" %>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String name = request.getParameter("name");
String str[] = name.split(" ");
String code = "";
if(str.length==2)
{
code = str[1];
}
String cid = request.getParameter("cid");
int id = Integer.parseInt(cid);
ServletContext sc = request.getSession().getServletContext();
ApplicationContext ac =WebApplicationContextUtils.getWebApplicationContext(sc);//很重要獲得dao
IMenuItemDAO dao = (IMenuItemDAO)ac.getBean("MenuItemDAO");
MenuItem m = dao.findById(id);
MenuItem mi = new MenuItem();
mi.setMenuBar(m.getMenuBar());
mi.setImage("menuitem.gif");
if(m.getItemCode()==1)//當前是一級菜單
{
mi.setParentId(m.getId());
List l = dao.findByProperty("parentId",m.getId());
if(l.size()==1)
{
mi.setDisplayOrder(2);
}
else
{
MenuItem t = (MenuItem)l.get(l.size()-1);
mi.setDisplayOrder(t.getDisplayOrder()+1);
}
mi.setItemCode(2);
mi.setItemName(name);
mi.setClickEvent("item.jsp");
}
else if(m.getItemCode()==2)
{
mi.setParentId(m.getId());
List l = dao.findByProperty("parentId",m.getId());
if(l.size()==0)
{
mi.setDisplayOrder(1);
}
else if(l.size()==1)
{
mi.setDisplayOrder(2);
}
else
{
MenuItem t = (MenuItem)l.get(l.size()-1);
mi.setDisplayOrder(t.getDisplayOrder()+1);
}
mi.setItemCode(3);
mi.setItemName(name);
mi.setClickEvent("standard/standardlistAction?type="+code+"");
}
dao.save(mi);
response.getWriter().write(
"ok");
%>
function onDeleteNode()
{
Ext.Msg.confirm('系統提示' , '你是否確定刪除此標準?' , this.onDeleteNodeConfirm , this);
};
function onDeleteNodeConfirm(btn)
{
if(btn == 'yes')
{
var selectedNode = menuTree.getSelectionModel().getSelectedNode();
Ext.Ajax.request({
url: context+'/node/nodedelete.action',
method:'post',
params:{cid:selectedNode.id},
success: function(response, option)
{
var result = response.responseText;
var str1 = 'ok';
var str2 = 'cancel';
if(result.match(str2))
{
alert('該節點(diǎn)不能刪除!');
}
if(result.match(str1))
{
alert('刪除成功!');
menuTree.root.reload();
root.expand();
}
},
failure: function(response, option)
{
}
});
}
}
function onUpdate()
{
Ext.Msg.confirm('系統提示' , '你是否確定修改此標準?' , this.onUpdateNode , this);
};
function onUpdateNode()
{
var selectedNode = menuTree.getSelectionModel().getSelectedNode();
Ext.Msg.prompt('請輸入修改的節點(diǎn)名稱(chēng)' , '修改名稱(chēng)' , this.onUpdateNodePrompt , this , false , selectedNode.text) ;
}
function onUpdateNodePrompt(btn , text)
{
if(btn == 'ok')
{
var selectedNode = menuTree.getSelectionModel().getSelectedNode();
Ext.Ajax.request({
url: context+'/node/nodeupdate.action',
method:'post',
params:{name:text,cid:selectedNode.id},
success: function(response, option)
{
var result = response.responseText;
var str1 = 'ok';
var str2 = 'cancel';
if(result.match(str2))
{
alert('該節點(diǎn)不能修改!');
}
if(result.match(str1))
{
alert('修改成功!');
menuTree.root.reload();
root.expand();
}
},
failure: function(response, option)
{
}
});
