Extjs类的动态加载时碰到问题求解
我在学习Extjs类的动态加载时，碰到一个问题，求解啊
问题如下：在webroot/src/Cookbook文件夹中有两个类Vehicle和Plane
Vehicle.js代码如下：
Ext.define('Cookbook.Vehicle', {
config : {
manufacturer : 'UnKown Manufacturer',
model : 'UnKown Model',
topSpeed : 0
},
constructor : function(manufacturer, model, topSpeed) {
this.initConfig();
if (manufacturer)
this.setManufacturer(manufacturer);
if (model)
this.setModel(model);
if (topSpeed)
this.setTopSpeed(topSpeed);
},
travel : function(distance) {
alert("the" + this.getManufacturer() + " "
+ this.getModel() + "travel" + " " + distance
+ "miles at a topSpeed of" + this.getTopSpeed()
+ " mph");
}
}, function() {
alert("Cookbook.Vehicle class is created");
});
plane.js代码如下：
Ext.define('Cookbook.Plane',{
extend: 'Cookbook.Vehicle',
config:{
maxAltitude:0
},
constructor:function(manufacturer,model,topSpeed,maxAltitude){
this.initConfig();
if(maxAltitude)
this.setMaxAltitude(maxAltitude);
this.callParent([manufacturer,model,topSpeed]);
},
showMaxAltitude: function(){
alert("the plane"+this.getManufacturer()+" "+this.getModel()+" maxAltitude is "+plane.getMaxAltitude()+"miles");
},
takeOff:function(){
alert("the plane"+this.getManufacturer()+" "+this.getModel()+"is takeOff");
},
land:function(){
alert("the plane"+this.getManufacturer()+" "+this.getModel()+"is landing");
},
travel:function(distance){
this.takeOff();
this.callParent(arguments);
this.showMaxAltitude();
this.land();
}
},function(){
alert("Cookbook.Plane class is created");
}
);
在app.js中动态的加载plane这个类
Ext.onReady(function (){
Ext.Loader.setConfig(
{
enabled:true,
paths:{
'Cookbook' :"src/Cookbook"
}
});
Ext.require('Cookbook.Plane',function(){
var plane= Ext.create('Cookbook.Plane','Boeing','747','1200','10000');
plane.travel(10000);
});
}
);
在app.js中plane这个对象的travel()方法执行出现问题，只执行了travel方法中的 this.takeOff();和 this.callParent(arguments);两个方法，而 this.showMaxAltitude()；和this.land();这两个方法并没有并执行，显示的错误是：Uncaught ReferenceError: plane is not defined 。搞不明白为什么会出这种问题，求助。
[解决办法]
alert("the plane"+this.getManufacturer()+" "+this.getModel()+" maxAltitude is "+plane.getMaxAltitude()+"miles");
plane变量没定义，不是说了。。getMaxAltitude方法也没定义
