XMLSocket的缺点

//=======================================;

// Flash客户端（以Flash文本聊天为例）;

//=======================================;

var paramObj:Object = new Object();

//命令分隔符；

paramObj.CommandDelimiters = "-@@##@@-";

//用户列表分隔符；

paramObj.PeopleDelimiters = "-@#@-";

//建立XMLSocket对象；

var socket:XMLSocket = new XMLSocket();

//连接状态事件；

socket.onConnect = function(success) {

trace("socket.onConnect:"+success);

if (!success) {

trace("服务器连接失败,请检查网络状态!");

}

};

//关闭事件；

socket.onClose = function() {

trace("服务端已关闭！");

logoutChat();

};

//数据通信事件；

socket.onData = function(src) {

//trace("socket.onData:"+src);

doCommand(getCmdArrayByMsg(trim(src)));

};

//用户登录；

function loginChat():Void {

//连接Socket服务端；

socket.connect(“localhost”, “8888”);

sendSocket("INFO"+paramObj.CommandDelimiters+msg);

}

//用户注销；

function logoutChat(b:Boolean):Void {

sendSocket("QUIT");

}

//显示聊天信息；

function showChat(msg:String):Void {

trace(“聊天信息：”+msg);

}

//发送聊天信息；

function sendChat(msg:String):Void{

sendSocket("MSG"+paramObj.CommandDelimiters+msg+paramObj.CommandDelimiters+msg);

}

//向服务端发送信息；

function sendSocket(msg:String):Void {

socket.send(msg+"\r");

}



//处理服务端返回信息；

function getCmdArrayByMsg(msg:String):Array {

if (msg.charCodeAt(0) == 13 && msg.charCodeAt(1) == 10) {

msg = msg.substr(2);

}

return msg.split(paramObj.CommandDelimiters);

}



function doCommand(arr:Array):Void {

switch (arr[0]) {

case "MSG" :

showChat(arr[1]);

break;

case "TAKEN" :

trace("你的登录名已经有了,请重新换一个登录名!");

break;

case "PEOPLE" :

doPeople(arr[1]);

break;

}

}

//显示在线用户列表；

function doPeople(msg:String):Void {

var people_arr:Array = msg.split(paramObj.PeopleDelimiters);

trace(people_arr);

}

//上面与XMLSocket有关的主要代码，显示方面自己添加相关组件就行了！

//有一个注意点，在flash向服务端发送的命令的最后一定要加上“\r”，否则服务端无法收到消息（我的服务端是用Java开发的）

//=======================================;

// 服务端代码(我用java开发的，其他版本自行研究);

// ChatServer.java

//=======================================;

package com.klstudio.socket.chat;



import java.io.IOException;

import java.net.ServerSocket;

import java.net.Socket;

import java.util.Vector;



//import com.klstudio.util.Logger;



/**

* @author kinglong

*

* TODO 要更改此生成的类型注释的模板，请转至窗口－首选项－ Java －代码样式－代码模板

*/

public class ChatServer {

//private Logger logger;

private static Vector clients = new Vector();

private static ServerSocket server = null;

private static Socket socket = null;

public static String CommandDelimiters = "-@@##@@-";

public static String PeopleDelimiters = "-@#@-";



public ChatServer() {

}



public static void notifyRoom() {

StringBuffer people = new StringBuffer("PEOPLE"+CommandDelimiters+"所有的人");

for (int i = 0; i < clients.size(); i++) {

Client client = (Client) clients.elementAt(i);

people.append(PeopleDelimiters+client.getClientName());

}

sendClients(people);

}

public staticboolean checkName(Client newClient){

for(int i=0;i<clients.size();i++){

Client client = (Client) clients.elementAt(i);

if(client != newClient && client.getClientName().equals(newClient.getClientName())){

return false;

}

}

return true;

}

public static void closeAll(){

while(clients.size()>0){

Client client = (Client) clients.firstElement();

try {

client.getClientSocket().close();

} catch (IOException e) {

// TODO 自动生成 catch 块

//Logger logger = new Logger(System.out);

//logger.log("错误-" + e.toString());

} finally {

clients.removeElement(client);

}

}

}

public static synchronized void disconnect(Client client) {

client.send(new StringBuffer("QUIT"));

try {

client.getClientSocket().close();

} catch (IOException e) {

// TODO 自动生成 catch 块

//Logger logger = new Logger(System.out);

//logger.log("错误-" + e.toString());

} finally{

clients.removeElement(client);

}



}



public static synchronized void sendClients(StringBuffer sb) {

for(int i=0;i<clients.size();i++){

Client client = (Client) clients.elementAt(i);

client.send(sb);

}

}



public static synchronized void sendClients(StringBuffer sb,String ownerName,String toName) {

for(int i=0;i<clients.size();i++){

Client client = (Client) clients.elementAt(i);

if(toName.equals(client.getClientName()) || toName.equals("所有的人") || ownerName.equals(client.getClientName())){

client.send(sb);

}

}

}



public static synchronized void sendClients(Client ownerClient) {

for(int i=0;i<clients.size();i++){

Client client = (Client) clients.elementAt(i);

if(client.getClientName().equals(ownerClient.getClientName())){

client.send(new StringBuffer("MSG"+CommandDelimiters+"系统信息>欢迎你进入!"));

}else{

client.send(new StringBuffer("MSG"+CommandDelimiters+"系统信息>["+ownerClient.getClientName()+"]用户进入!"));

}

}

}

public static void main(String[] args) {

int port = 8888;

if(args.length>0){

port = Integer.parseInt(args[0]);

}

//Logger logger = new Logger(System.out);

//logger.log("信息-ChatServer["+port+"]服务正在启动...");

try {

server = new ServerSocket(port);

} catch (IOException e) {

// TODO 自动生成 catch 块

//logger.log("错误-"+e.toString());

}

while(true){

if(clients.size()<5){

try {

socket = server.accept();

if(socket != null){

//logger.log("信息-"+socket.toString()+"连接");

}

} catch (IOException e) {

// TODO 自动生成 catch 块

//logger.log("错误-"+e.toString());

}

int i=0;

do{

Client client = new Client(socket);

if(client.getClientName() != null){

clients.addElement(client);

if(checkName(client)){

//logger.log("信息-"+"目前有["+clients.size()+"]个用户已连接");

sendClients(client);

client.start();

notifyRoom();

}else{

client.send(new StringBuffer("TAKEN"));

disconnect(client);

}

i++;

}

break;

}while(i<clients.size());



}else{

try {

Thread.sleep(200);

} catch (InterruptedException e) {

// TODO 自动生成 catch 块

//logger.log("错误-"+e.toString());

}

}

}

}

}

//=======================================;

// Client.java

//=======================================;

/*

* 创建日期2005-10-10

*

* TODO 要更改此生成的文件的模板，请转至

* 窗口－首选项－ Java －代码样式－代码模板

*/

package com.klstudio.socket.chat;



import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.PrintStream;

import java.net.Socket;

//import com.klstudio.util.Logger;



/**

* @author kinglong

*

* TODO 要更改此生成的类型注释的模板，请转至窗口－首选项－ Java －代码样式－代码模板

*/

public class Client extends Thread {

private Socket clientSocket;

private String clientName;

private String clientIp;

private BufferedReader br;

private PrintStream ps;

//private Logger logger;

private ChatServer server;



public Client(Socket socket) {

//this.logger = new Logger(System.out);

this.clientSocket = socket;

try {

this.br = new BufferedReader(new InputStreamReader(socket.getInputStream(),"utf-8"));

this.ps = new PrintStream(socket.getOutputStream(),true,"utf-8");

String info = this.br.readLine();



if(info!=null){

String[] info_arr = info.split(ChatServer.CommandDelimiters);

if(info_arr.length>1){

this.clientName = info_arr[1];

}

this.clientIp = socket.getRemoteSocketAddress().toString();

}else{

socket.close();

}

} catch (IOException e) {

// TODO 自动生成 catch 块

//this.logger.log("错误-" + e.toString());

}

}



/**

* @return 返回 ip。

*/

public String getClientIp() {

return clientIp;

}

/**

* @return 返回 name。

*/

public String getClientName() {

return clientName;

}



/**

* @return 返回 socket。

*/

public Socket getClientSocket() {

return clientSocket;

}

public void send(StringBuffer msg){

this.ps.println(msg.toString()+"\0");

//this.ps.flush();

}

public void run() {

while (true) {

String line = null;

try {

line = this.br.readLine();

} catch (IOException e) {

// TODO 自动生成 catch 块

//this.logger.log("错误-" + e.toString());

ChatServer.disconnect(this);

ChatServer.notifyRoom();

return;

}

if (line == null) {

//this.logger.log("信息-[" + this.clientName + this.clientIp + "]用户离开!");

ChatServer.disconnect(this);

ChatServer.notifyRoom();

if(this.clientName != null){

ChatServer.sendClients(new StringBuffer("MSG"+ChatServer.CommandDelimiters+"系统信息>[" + this.clientName + "]用户离开!"));

}

return;

}

//this.logger.log("信息-"+line);

String[] cmd_arr = line.split(ChatServer.CommandDelimiters);
String keyword = cmd_arr[0];

keyword = keyword.substring(1);

if(keyword.equals("MSG")){

StringBuffer msg = new StringBuffer("MSG"+ChatServer.CommandDelimiters);

msg.append(this.clientName+">");

msg.append(cmd_arr[1]);

ChatServer.sendClients(msg,this.clientName,cmd_arr[2]);

}else if(keyword.equals("QUIT")){

//this.logger.log("信息-[" + this.clientName + this.clientIp + "]用户离开!");

ChatServer.disconnect(this);

ChatServer.notifyRoom();

ChatServer.sendClients(new StringBuffer("MSG"+ChatServer.CommandDelimiters+"系统信息>[" + this.clientName + "]用户离开!"));

this.stop();

return;

}

}

}

}