[FMS]一步一步学Flash Media Server(五)

发布时间：2020-12-15 18:22:35 所属栏目：百科来源：网络整理

导读：今天我们的讲解的是在昨天代码的功能上加上在线列表的功能,同时会去掉共享对象,用另一种方法向客户端发消息. 先看看服务端代码我们更改些什么代码: application.onAppStart? = ?function()?{ ???? this .chatMsgArray? ? new ?Array(); ???? .userListArray?

今天我们的讲解的是在昨天代码的功能上加上在线列表的功能,同时会去掉共享对象,用另一种方法向客户端发消息.

先看看服务端代码我们更改些什么代码:

application.onAppStart? = ?function()?{
???? this .chatMsgArray? ? new ?Array();
???? .userListArray? ?Array();
}

application.onConnect? ?function(client,?userName)?{
???? if (checkOnline(userName)){
???????? .rejectConnection(client);
???????? return ;
????}
???? .acceptConnection(client);
????client.userName? ?userName;
???? .userListArray.push(userName);
????sendUserList();
???? // 客户端调用方法
????client.getMsg? ?function(){
???????? ?application.chatMsgArray;
????}
????client.sendMsg? ?function(msg){
????????var?chatInfo? .userName? + " ?:? ?msg;
????????application.chatMsgArray.push(chatInfo);
????????sendMsgToClient(chatInfo);
????}
}

application.onDisconnect? ?function(client)?{
????trace( 用户: client.userName ?离开 );
????var?len? .userListArray.length;
???? for (var?i 0 ;i < len;i ++ ){
???????? ( .userListArray[i]? == ?client.userName){
???????????? .userListArray.splice(i, 1 );
????????????sendUserList();
????????}
????}
}

application.onAppStop? ?function()?{
????delete? .chatMsg_so;
}

function?checkOnline(userName){
????var?len? ?application.userListArray.length;
???? (application.userListArray[i]? ?userName){
???????????? true ;
????????}
????}
???? false ;
}

function?sendMsgToClient(chatInfo){
????var?len? ?application.clients.length;
???? ){
????????application.clients[i].call( getMsgInfo ,255)">null getUserList ?

this.chatMsgArray = new Array();
this.userListArray = new Array();

这两个定义的数组是在开始定义的,chatMsgArray是存储所有的聊天信息,userListArray是一个存储在线列表的数组

当用户连接进来的时候,我们用了一个函数checkOnline来检查用户是不是在在线列表中,如果在就用this.rejectConnection(client);拒绝这个连接,如果不在就接受这个连接并加到在线列表中

sendUserList函数是向所以客户端发送在线列表信息,application.clients是一个存储所以客户端连接的信息,application.clients.call就是调用客户端函数,使用方法跟客户端调服务器端是一样的.

然后我们增加了1个供客户端调用的函数

client.getMsg = function(){
?return application.chatMsgArray;
}

client.getMsg是返回所有的聊天信息,当用户第一次连接时,得到别人的聊天记录

在用户断开连接的时候增加了将断线用户从在线列表中清除,并且发送在线列表.

再来看看客户端代码:

package ?net.smilecn.chat{
????
???? import ?flash.display.Sprite;
???? ?flash.net.NetConnection;
???? ?flash.net.Responder;
???? ?flash.events.NetStatusEvent;
???? ?flash.events.SyncEvent;
???? ?flash.events.MouseEvent;
???? ?fl.controls.TextArea;
?????? ?fl.controls.Button;
?????? ?fl.controls.TextInput;
???? ?fl.controls.Label;
???? ?fl.controls.List;
???? ?fl.data.DataProvider;

????
???? public class ?Chat? extends ?Sprite{
????????
???????? private ?var?nc:NetConnection;
???????? ?var?rtmpUrl:String? rtmp://localhost/chat ;
???????? ?var?msg:Label;
???????? ?var?userNameInput:TextInput;
???????? ?var?enterBtn:Button;
???????? ?var?button:Button;
???????? ?var?textArea:TextArea;
???????? ?var?textInput:TextInput;
???????? ?var?userList:List;
????????
???????? ?var?userName:String? user002 ;
????
???????? ?function?Chat(): void {
????????????userNameInput? ?TextInput();
????????????userNameInput.move( 100 200 );
????????????addChild(userNameInput);
????????????enterBtn? ?Button();
????????????enterBtn.move( 220 );
????????????enterBtn.label? 进入 ;
????????????addChild(enterBtn);
????????????enterBtn.addEventListener(MouseEvent.CLICK,enterBtnClickHandler);
????????????msg? ?Label();
????????????msg.move( 230 );
????????????msg.text? "" ;
????????????addChild(msg);
????????}
????????
???????? ?function?enterBtnClickHandler(event:MouseEvent): {
???????????? (userNameInput.text != ){
????????????????userName? ?userNameInput.text;
????????????????removeChild(userNameInput);
????????????????removeChild(enterBtn);
????????????????removeChild(msg);
????????????
????????????????textArea ?TextArea();
????????????????textArea.setSize?( 300 );
????????????????textArea.move?( 20 );
????????????????addChild?(textArea);

????????????????textInput ?TextInput();
????????????????textInput.width? 140 ;
????????????????textInput.move?( 330 );
????????????????addChild?(textInput);

???????????????????button ?Button();
????????????????button.width 50 ;
???????????????????button.label 发送 ;
???????????????????button.move?( 170 );
????????????????addChild(button);
????????????????button.addEventListener?(MouseEvent.CLICK,sendMsg);
????????????????
????????????????userList? ?List();
????????????????userList.move( 250 );
????????????????userList.setSize( );
????????????????addChild(userList);
????????????
????????????????nc ?NetConnection();
????????????????nc.addEventListener?(NetStatusEvent.NET_STATUS,netStatusHandler);
????????????????nc.connect?(rtmpUrl,userName);
????????????????nc.client? ;
????????????} else {
????????????????msg.text? 请输入用户名 ;
????????????}
????????????
????????}
????????
???????? ?function?netStatusHandler(event:NetStatusEvent): {
????????????trace( event.info.code: (event.info.code? NetConnection.Connect.Success ){
????????????????nc.call( getMsg ?Responder(getMsgResult,getMsgFault))
????????????}
????????}
????????
???????? ?function?getMsgResult(re:Array): {
????????????var?s:String ;
????????????var?len:Number? ?re.length;
???????????? ){
????????????????s? += ?re[i] ;
????????????}
????????????textArea.text? ?s;
????????}
????????
???????? ?function?getMsgFault(fe: * ): {
????????????trace(fe);
????????}
????????
???????? ?function?sendMsg?(e:MouseEvent): {
????????????nc.call( sendMsg ;
????????}
????????
???????? ?function?getMsgInfo(msg:String): {
????????????textArea.appendText(msg );
????????}
????????
???????? ?function?getUserList(list:Array): {
????????????userList.dataProvider? ?DataProvider(list);
????????}
????}
????
}

客户端首先增加了一个用户输入名字,这是些简单的代码.

然后共享对象的那部份去掉了,加了句这样的代码:nc.client = this;

这句话的意思是指定当前对象为服务器回调方法的对象

public function getMsgInfo(msg:String):void{
?textArea.appendText(msg+"/n");
}
??
public function getUserList(list:Array):void{
?userList.dataProvider = new DataProvider(list);
}

这两个方法就是服务器调用的方法.

在nc连接成功的地方加了句nc.call("getMsg",new Responder(getMsgResult,getMsgFault)),这句是在刚连接成功的时候得到以前用户的聊天记录.

顺便说一句,客户端代码用到了组件,所以要把这些组件放到库中才能运行,上一节也是这样的.

转载：http://blog.csdn.net/arrowyoung/article/details/2448919

（编辑：李大同）

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