聊天室程序
HandleSocket 进展处理，同时将 client 存放到 List 中，即 clientConnection 中
class SocketListenerimplements Runnable {
public void run() {
Socket client;
try{
while ( true ) {
client = server .accept();
// 连接上一个就压入 List 中，即 clientConnection 中
clientConnection .add( client );
HandleSocket hs = new HandleSocket( client );
// 连接上就让 HandleSocket 去处理
new Thread( hs).start();
}
} catch (IOExceptione) {
System. out .println(" 客户连接效劳器失败 " );
}
}
}
// 内部类 处理一个 Socket, 接收一个 Client 发送过来的消息，并且效劳器原封
不动的返回给所有客户端，客户端对消息进展过滤
class HandleSocket implements Runnable {
Socket client;
HandleSocket(Socket client) {
this . client = client;
}
public void run() {
try{
clientNum ++;
//启用输入流
InputStream is = client.getInputStream();
InputStreamReader isr = new InputStreamReader( is );
BufferedReader br = new BufferedReader( isr );
System. out .println( " 第 " + clientNum + " 个客户端连接进入效劳
器" );
boolean flag = true ;
String s;
do {
// 对用户发来的消息进展群发给客户端
s = br .readLine();
System. out .println( " 承受到一个客户端消息： " + s);
for ( int i = 0; i < clientConnection .size();i ++) {
Socket client = clientConnection .get( i );
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