Extjs4MVC 树不加载，还有怎么实现grid添加和修改通过弹出form来完成支持回车，要是能完成Excel导入导出就更好了

Ext.define('AM.controller.JokeController',{
extend:'Ext.app.Controller',
GridDoActionUtil:Ext.create('AM.util.GridDoActionUtils'),
init:function(){
this.getGridObj=function(button){
return button.ownerCt.ownerCt;
}
this.getTreeObj=function(button){
return button.ownerCt.ownerCt.ownerCt.ownerCt.child('#west-tree').child('#joke-tree');
}
this.getJokeEditObj = function(button){
return button.ownerCt.child('#joke-edit');

}
this.control({
'jokedit button[id=save]':{
click:function(addButton){
alert(this.getJokeEditObj);
// formBind: true,
//         disabled: true,
//         handler: function() {
//    var fform = this.up('window').down('form').getForm();
//    console.info(fform);
//             if (fform.isValid()) {
//             alert('1');
//                 fform.submit({
//                 url:'AppJoke/addUpdateJoke!addOrUpdate',
//                     success: function(fform, action) {
//                        Ext.Msg.alert('Success', action.result.msg);
//                     },
//                     failure: function(fform, action) {
//                         Ext.Msg.alert('Failed', action.result.msg);
//                     }
//                 });
//             }
//         }
}

},
'jokeTree':{
itemclick:function(tree,record,item,index,e,options){
var view= Ext.get('joke-view');
//var store = view.getStore();
this.GridDoActionUtil.changeTab(view,record);
}
},
"winimportview button[id=upload]":{
     click: function(sm, selections,a,c){      
      var form=Ext.getCmp("formimport");               
      if (form.getForm().isValid()) {
        //重置信息提示框
       Ext.getCmp("resultmsg").body.update("正在导入数据，请稍候...");
       form.getForm().submit({
                       url:  Qas.getAppName() + '',
                       method : 'POST',                                           
                       waitTitle:'请等待...',
                       waitMsg: '正在上传Excel文件，分析导入数据，请稍候...',                   
                       success : function(form,action) {                  
                        console.log("ServerJson="+action.response.responseText);
                        Ext.getCmp("resultmsg").body.update(action.result.msg);                                                                                                       
           },
           failure : function(form, action){//500内部错误
            console.log("ServerJson="+action.response.responseText);
                        Ext.getCmp("resultmsg").body.update(action.result.msg);                  
        }
         });
       }                    
     }
},
'jokelist button[id=import]':{
click:function(importButton){
var importWin = Ext.create("AM.view.WinImportView");
importWin.show();
}

},
'jokelist button[id=delete]':{
click:function(deleteButton){
var grid=this.getGridObj(deleteButton);
this.GridDoActionUtil.doDelete(grid);
}

},
'jokelist button[id=save]':{
click:function(saveButton){
var grid=this.getGridObj(saveButton);
this.GridDoActionUtil.doSave(grid);
}
},
'jokelist button[id=add]':{
click:function(addButton){
//var addWin=Ext.getCmp('joke-edit');
var win = Ext.create("AM.view.JokeEdit");
win.show();
}
}//,

//设定列表添加按钮事件

// 'jokelist button[id=add]':{
// click:function(addButton){
//
// var grid=this.getGridObj(addButton);
// var modelObj={
// id:'',
// joke:'',
// type:'',
// createTime:''
// }
// this.GridDoActionUtil.doInsert(grid,modelObj);
//
// }
// }
});
},
views:[
'MainLayout',
'JokeList',
'JokeTree',
'JokeEdit'
],
stores:[
'JokeStore4Tree',
'JokeStore'
],
models:[
'JokeModel'
]
})

Ext.define('AM.model.JokeModel',{
extend:'Ext.data.Model',
fields:[
{name:'id',type:'int'},
{name:'joke',type:'string'},
{name:'type',type:'int'},
{name:'createTime'}
],
validations:[
{type:'presence',field:'joke',
presenceMessage:'内容不能为空'},
{type:'presence',field:'type',
presenceMessage:'类型不能为空'}
]

});

Ext.define('AM.model.JokeModel4Tree',{
extend:'Ext.data.Model',
fields:[
{name:'id',type:'auto'},
{name:'menuBean',type:'auto'},
{name:'text',type:'auto'},
{name:'cls',type:'auto'},
{name:'leaf',type:'auto'},
{name:'type',type:'auto'},
{name:'children',type:'auto'}
]
});


/**
* ClassName:部门实体数据集 
*/
Ext.define('AM.store.JokeStore',{
extend:'Ext.data.Store',
model:'AM.model.JokeModel',
pageSize:25,
proxy:{
api:{
update:'AppJoke/joke!saveOrUpdate',
remove:'AppJoke/joke!delete'
},
type:'ajax',
url:'xxxx/xxxx!list',
reader:{
type:'json',
root:'root',
totalProperty:'total'

},
writer:{
type:'json'
}
},
autoLoad:true

})

Ext.define('AM.store.JokeStore4Tree',{
extend:'Ext.data.TreeStore',
defaultRootId:'root',
proxy:{
type:'ajax',
url:'xxx/xxxxx!list',
reader:'json'

}
})

Ext.QuickTips.init();
Ext.define('AM.view.JokeEdit', {
extend: 'Ext.window.Window',
    alias : 'widget.jokedit',
title : '笑话添加编辑',
layout: 'fit',
id:'joke-edit',
    autoShow: true,
    modal:true,
    frame:false,
    border : false,
bodyBorder : false,
initComponent: function() {
var states = Ext.create('Ext.data.Store', {
    fields: ['type', 'name'],
    data : [
        {"type":0, "name":"xxxxx"},
        {"type":1, "name":"xxxxxxx"},
        {"type":2, "name":"xxxxx"},
        {"type":3, "name":"xxxxx"}
    ]
});
        this.items = [{
                xtype:'form',
                url:'Pmjoke/AppJoke/addUpdateJoke!addOrUpdate',
                defaults:{
               margin:'2 2 2 10',
                labelSeparator :'：',//分隔符
                labelWidth : 70,//标签宽度
                //width : 150,//字段宽度
                allowBlank : false,
                blankText : '不允许为空',
                labelAlign : 'right',
                msgTarget :'qtip'         
           },
                items:[{
                        xtype: 'textfield',
                        name :'id',
                        fieldLabel: '序号',
                        hidden:true
                    },{
                        xtype: 'textarea',
                        width:350,
                        height:200,
                        name :'joke',
                        fieldLabel: 'xx'
                    },{
                        xtype: 'comboBox',
                        name : 'type',
                        fieldLabel: 'xx类型',
                        editor:{
xtype:'combobox',
store:states,
displayField:'name',
         valueField:'type',
listeners:{
select:function(combo,record,index){
isEdit = true;
}
}
}
                 },{
                    xtype: 'datefield',
                    name : 'createTime',
                    fieldLabel: '创建时间',
                    hidden:true
                 }]
          }];
        this.buttons = [{
            text: '保存',
            //action: 'save'
            formBind: true,
        //disabled: true,
        handler: function() {
   var fform = this.up('form').getForm();
   console.info(fform);
            if (fform.isValid()) {
            alert('1');
                fform.submit({
                url:'Pmjoke/AppJoke/addUpdateJoke!addOrUpdate',
                    success: function(fform, action) {
                       Ext.Msg.alert('Success', action.result.msg);
                    },
                    failure: function(fform, action) {
                        Ext.Msg.alert('Failed', action.result.msg);
                    }
                });
            }
        }
         },{
            text: '取消',
            scope: this,
            handler: this.close
       }];
        this.callParent(arguments);
    }
});

/**
* 笑话管理列表实体
*/
Ext.define('AM.view.JokeList',{
extend:'Ext.grid.Panel',
alias:'widget.jokelist',
store:'JokeStore',
id:'joke-view',
// width:550,
// height:500,
forceFit:true,
selModel:{
selType:'checkboxmodel'
},
border:0,
multiSelect:true,
frame:true,
tbar:[
{xtype:'button',text:'添加',id:'add',iconCls:'table_add'},
{xtype:'button',text:'删除',id:'delete',iconCls:'table_remove'},
{xtype:'button',text:'保存',id:'save',iconCls:'table_save'},
{xtype:'button',text:'导入',id:'import',iconCls:'table_import'},
{xtype:'button',text:'导出',id:'export',iconCls:'table_export'}
],
dockedItems:[{
xtype:'pagingtoolbar',
store:'JokeStore',
dock:'bottom',
displayInfo:true
}],
initComponent:function(){

this.editing = Ext.create('Ext.grid.plugin.CellEditing');
this.plugins=[this.editing];
this.callParent(arguments);
},
states:Ext.create('Ext.data.Store', {
    fields: ['type', 'name'],
    data : [
        {"type":0, "name":"普通xx"},
        {"type":1, "name":"xx"},
        {"type":2, "name":"成人xx"},
        {"type":3, "name":"x事"}
    ]
}),
enableKeyNav:true,
columnLines:true,
columns:[
{text:'编号',dataIndex:'id',width:50,
hidden:true
},
{text:'xx',dataIndex:'joke',width:700,
field:{
xtype:'textfield',
allowBlank:false
}
},
{text:'类型',dataIndex:'type',width:100,
editor:{
xtype:'combobox',
store:this.states,
displayField:'name',
     valueField:'type',
listeners:{
select:function(combo,record,index){
isEdit = true;
}
}
}

},

{text:'创建时间',dataIndex:'createTime',width:150,xtype : 'datecolumn',
format:'Y年m月d日'
}
]

})

Ext.define('AM.view.JokeTree',{
extend:'Ext.tree.Panel',
alias:'widget.jokeTree',
rootVisible:true,//不展示根
displayField:'text',
title:'xx导航',
animate:false,
id:'tree-store',
store:'JokeStore4Tree'
})


Ext.define('AM.view.MainLayout',{
extend:'Ext.panel.Panel',
alias:'widget.mainlayout',
defaults:{
split:true,
bodyStyle:'padding:1px'
},
layout:'border',
resizable:true,
items:[{
title:'xx树形',
region:'west',
//iconCls:'joke-tree',
xtype:'treepanel',
margins:'5 2 5 5',
width:200,
collapsible:true,
id:'west-tree',
layout:'fit',
items:[{
title:'xx导航',
xtype:'jokeTree',
id:'joke-tree'

}]
},{
title:'数据表格',
region:'center',
//iconCls:'joke-table',
xtype:'panel',
//width:.85,
id:'center-grid',
margins:'5 5 5 0',
layout:'fit',

items:[{
title:'xx管理',
id:'joke-grid',
xtype:'jokelist'
}]

}]


})

Ext.require(['Ext.form.field.File']);
Ext.define('AM.view.WinImportView', {
extend : 'Ext.window.Window',
alias : 'widget.winimportview',
// width : 450,
// height : 260,
layout : 'fit',
resizable : true,
frame : false,
modal : true,
border : false,
bodyBorder : false,
items : [{//items_win_begin
  border : false,
  bodyBorder : false,
  id:'formimport',
  xtype : 'form', 
  frame: true,
  fileUpload:true,
  layout: 'anchor',
     defaults: {
        anchor: '100%'
      },
  bodyPadding: 5,
  fieldDefaults: {
      labelAlign: 'right',         
      msgTarget : 'side'
  },
  items: [{//item_form_begin
   xtype: 'fieldset',
   collapsible: true,
   title: 'Excel导入',
   defaultType: 'textfield',
   layout: 'anchor',
      defaults: {
       anchor: '100%'
       },
   items: [{//item_fieldset1_begin
    xtype: 'container',
    layout : {
    type : 'table',//内部容器用表格风格排版
    columns : 1,
    bodyStyle : 'padding:0 0 0 0'
    },
    defaultType: 'textfield',          
    items: [{//item_container_begin
     xtype: 'filefield',
              name: 'file',
              fieldLabel: '请选择Excel文件',
              width:400,           
              allowBlank: false,                       
              buttonText: ' 浏 览 ',
              buttonConfig: {
                  //iconCls: 'upload-icon'
              } 
    }/*,{
    width:400,
    html:'<a href='+Pmjoke.getAppName() + '/template/Excel/ApImportTemplate.xls> 模板文件下载 </a>[提示：只有按照模板格式整理Excel表，才允许导入数据]'        
    }*/,{
     xtype:'panel',
     frame:true,
     autoScroll:true,   
     height:120,
     width:400,         
     name:'resultmsg',
     id:'resultmsg',
     html:''//在后台动态更改    
    }]//item_container_end 
  }]//item_fieldset1_end
}]//item_form_END
}],//items_win_end
dockedItems : [ {
  xtype : 'toolbar',
  dock : 'bottom',
  items : [ '->', {
   xtype : 'button',
   text : '导入Excel数据',
   iconCls : 'save',
   action: 'import',
   scale : 'small'
  },{
   xtype : 'button',
   text : '取消',
   iconCls : 'cancel',
   handler : function(m, e) {
    this.ownerCt.ownerCt.close();
   }
  }]
}]//dockedItems结束
});[b][/b][b][/b]