Flex3.0

发布时间：2020-12-15 04:03:36 所属栏目：百科来源：网络整理

导读：Flex组件不能显示问题： 1.组合组件要定义宽和高 package component { ??????? import mx.controls.Label; ??????? import mx.core.UIComponent; ??????? public class LabelComponent extends UIComponent ??????? { ??????????????? public function Label

Flex组件不能显示问题：

1.组合组件要定义宽和高

package component
{
??????? import mx.controls.Label;
??????? import mx.core.UIComponent;

??????? public class LabelComponent extends UIComponent
??????? {
??????????????? public function LabelComponent()
??????????????? {
??????????????????????? super();
??????????????? }
???????????????
??????????????? override protected function createChildren():void{
??????????????????????? super.createChildren();
??????????????????????? var label:Label = new Label();
??????????????????????? label.text = "success";
??????????????????????? this.addChild(label);
??????????????? }
???????????????
??????? }
}

2.html 中调用swf 以及传递参数

swf中得到参数的值：

?sourceid=Application.application.parameters["sourceid"];

3.swf 发送给服务端，接收返回的参数

使用HttpService对象

<mx:HTTPService id="loginService" resultFormat="text" result="
??????{
??????doResultHandle(event);
??????return;
??????}
????????????" />

loginService.url ="/crawl/returnCrawlInfo2.dhtml";
????loginService.addEventListener(mx.rpc.events.FaultEvent.FAULT,getConfiguration);
????var loc1:*=new flash.net.URLVariables();
????loc1.dt = int(Math.random() * 10);
????loc1.sourceid=int(sourceid);
????loginService.send(loc1);

Action 通过：

request.getParameter("sourceid")得到swf 传递的值

返回的处理：

private function doResultHandle(arg1:mx.rpc.events.ResultEvent):void
???{
????var loc1:*=arg1.result.toString();
????var loc2:*=com.adobe.serialization.json.JSON.decode(loc1);
????if (loc2)
????{
?????url1 = loc2.url;
?????port = loc2.port;
????}
????start();
????return;
???}

其中Action 如果要输出直接JSon对象：使用过滤器

4.如何将socket 取得的数放在DataGrid 中

1. 定义arrayClllection

2.绑定数据

3.添加数据

<mx:ArrayCollection id="arrColl">
???<mx:source>
????<mx:Array>
????</mx:Array>
???</mx:source>
??</mx:ArrayCollection>

使用{}绑定

<mx:DataGrid id="fetcherInfo" dataProvider="{arrColl}" height="245" width="785" x="10" y="10">
??<mx:columns>
???<mx:DataGridColumn headerText="地址" itemRenderer="cis_inlineComponent1" dataField="url" sortable="false" width="480" draggable="false" textAlign="center" headerStyleName="box1" color="#000000">
???</mx:DataGridColumn>
???<mx:DataGridColumn headerText="站点" width="220" draggable="false" sortable="false" dataField="site" headerStyleName="box1" textAlign="center" />
???<mx:DataGridColumn headerText="状态" itemRenderer="cis_inlineComponent2" sortable="false" width="100" draggable="false" dataField="status" headerStyleName="box1" textAlign="center">
???</mx:DataGridColumn>
??</mx:columns>
?</mx:DataGrid>

建立事件响应

private function socketConn():void
???{???
????socket.connect(url1,port);
????trace(url1+":"+port);
????//we.text="socketConn:"+url1+":"+port;
????socket.addEventListener(flash.events.Event.CONNECT,onConnnect);
????socket.addEventListener(flash.events.Event.CLOSE,onClose);
????socket.addEventListener(flash.events.ProgressEvent.SOCKET_DATA,runFun);
????return;
???}

读取数据

while (socket.bytesAvailable) ????{ ?????//we.text="runFun"+(number++); ?????msg = socket.readMultiByte(socket.bytesAvailable,"utf-8"); ?????var temp:*=com.adobe.serialization.json.JSON.decode(msg); ?????if(temp){ ??????status=temp.status; ??????if(status == "ok"){ ??????temp.status="正常"; ??????}else{ ???????temp.status="失败"; ??????} ?????arrColl.addItem(temp); ?????//we.text="runFun"+(msg); ?????} ????} ????return;

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