聊天室代码Word文档格式.docx
- 文档编号:16890257
- 上传时间:2022-11-26
- 格式:DOCX
- 页数:40
- 大小:24.78KB
聊天室代码Word文档格式.docx
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正在生成聊天窗口"
repaint();
cp=newFrame(TITLE);
cp.setLayout(newBorderLayout());
StringportNum=getParameter("
port"
);
//呢个参数勿太明
port=PORTNUM;
if(portNum!
=null)//书上是portNum==null,十分有问题
port=Integer.parseInt(portNum);
//CGI
ta=newTextArea(14,80);
ta.setEditable(false);
//readonlyattribute
ta.setFont(newFont("
Monospaced"
Font.PLAIN,11));
cp.add(BorderLayout.NORTH,ta);
Panelp=newPanel();
Buttonb;
//forloginbutton
p.add(lib=newButton("
Login"
));
lib.setEnabled(true);
lib.requestFocus();
lib.addActionListener(newActionListener(){
publicvoidactionPerformed(ActionEvente){
login();
lib.setEnabled(false);
lob.setEnabled(true);
tf.requestFocus();
//将键盘输入锁定再右边的文本框中
}
});
//forlogoutbutton
p.add(lob=newButton("
Logout"
lob.setEnabled(false);
lob.addActionListener(newActionListener(){
logout();
p.add(newLabel("
输入消息:
tf=newTextField(40);
tf.addActionListener(newActionListener(){
if(loggedIn){
//pw.println(Chat.CMD_BCAST+tf.getText());
//Chat.CMD....是咩野来?
intj=tf.getText().indexOf("
:
if(j>
0)pw.println(Chat.CMD_MESG+tf.getText());
else
pw.println(Chat.CMD_BCAST+tf.getText());
tf.setText("
//勿使用flush()?
p.add(tf);
cp.add(BorderLayout.SOUTH,p);
cp.addWindowListener(newWindowAdapter(){
publicvoidwindowClosing(WindowEvente){
//如果执行了setVisible或者dispose,关闭窗口
ChatClient.this.cp.setVisible(false);
ChatClient.this.cp.dispose();
cp.pack();
//勿明白有咩用?
//将Framecp放在中间
Dimensionus=cp.getSize(),
them=Toolkit.getDefaultToolkit().getScreenSize();
intnewX=(them.width-us.width)/2;
intnewY=(them.height-us.height)/2;
cp.setLocation(newX,newY);
cp.setVisible(true);
Windowshouldnowbevisible"
//登录聊天室
publicvoidlogin(){
if(loggedIn)return;
try{
sock=newSocket(getCodeBase().getHost(),port);
is=newBufferedReader(newInputStreamReader(sock.getInputStream()));
pw=newPrintWriter(sock.getOutputStream(),true);
}catch(IOExceptione){
showStatus("
Can'
tgetsocket:
"
+e);
cp.add(newLabel("
+e));
return;
//构造并且启动读入器,从服务器读取数据,输出到文本框中
//这里,长成一个线程来避免锁住资源(lockups)
newThread(newRunnable(){
publicvoidrun(){
Stringline;
while(loggedIn&
&
((line=is.readLine())!
=null))
ta.appendText(line+"
\n"
我的天啊,掉线了也!
!
}).start();
//假定登录(其实只是打印相关信息,并没有真正登录)
//pw.println(Chat.CMD_LOGIN+"
AppletUser"
pw.println(Chat.CMD_LOGIN+"
loggedIn=true;
//模仿退出的代码
publicvoidlogout(){
if(!
loggedIn)
loggedIn=false;
if(sock!
=null)
sock.close();
}catch(IOExceptionign){
//异常处理哦
//没有设置stop的方法,即使从浏览器跳到另外一个网页的时候
//聊天程序还可以继续运行
publicvoidpaint(Graphicsg){
Dimensiond=getSize();
inth=d.height;
intw=d.width;
g.fillRect(0,0,w,2);
g.setColor(Color.black);
g.drawString(paintMessage,10,(h/2)-5);
聊天室服务器端
importjava.util.*;
publicclassChatServer{
//聊天室管理员ID
protectedfinalstaticStringCHATMASTER_ID="
ChatMaster"
//系统信息的分隔符
protectedfinalstaticStringSEP="
//服务器的Socket
protectedServerSocketservSock;
//当前客户端列表
protectedArrayListclients;
//调试标记
protectedbooleanDEBUG=false;
//主方法构造一个ChatServer,没有返回值
publicstaticvoidmain(String[]argv){
System.out.println("
Chatserver0.1starting>
ChatServerw=newChatServer();
w.runServer();
***ERROR***Chatserver0.1quitting"
//构造和运行一个聊天服务
ChatServer(){
Chat=newChatParameter();
clients=newArrayList();
servSock=newServerSocket(7777);
//实有问题拉,不过可能是他自己定义既一个class.
ChatServer0.1listeningonport:
+7777);
}catch(Exceptione){
log("
IOExceptioninChatServer.<
init>
System.exit(0);
publicvoidrunServer(){
while(true){
Socketus=servSock.accept();
StringhostName=us.getInetAddress().getHostName();
Accpetedfrom"
+hostName);
//一个处理的线程
ChatHandlercl=newChatHandler(us,hostName);
synchronized(clients){
clients.add(cl);
cl.start();
if(clients.size()==1)
cl.send(CHATMASTER_ID,"
Welcome!
Youarethefirstonehere"
else{
Youarethelatestof"
+
clients.size()+"
users."
IOExceptioninrunServer:
protectedvoidlog(Strings){
System.out.println(s);
//处理会话的内部的类
protectedclassChatHandlerextendsThread{
//客户端scoket
protectedSocketclientSock;
//读取socket的BufferedReader
protectedBufferedReaderis;
//在socket上发送信息行的PrintWriter
//客户端出主机
protectedStringclientIP;
//句柄
protectedStringlogin;
publicChatHandler(Socketsock,Stringclnt)throwsIOException{
clientSock=sock;
clientIP=clnt;
is=newBufferedReader(
newInputStreamReader(sock.getInputStream()));
pw=newPrintWriter(sock.getOutputStream(),true);
//每一个ChatHandler是一个线程,下面的是他的run()方法
//用于处理会话
while((line=is.readLine())!
=null){
charc=line.charAt(0);
//我顶你老母啊,果只Chat.CMD咩xx冇定义扑啊///!
line=line.substring
(1);
switch(c){
//caseChat.CMD_LOGIN:
case'
l'
Chat.isValidLoginName(line)){
send(CHATMASTER_ID,"
LOGIN"
+line+"
invalid"
LOGININVALIDfrom:
+clientIP);
continue;
login=line;
broadcast(CHATMASTER_ID,login+"
joinsus,foratotalof"
users"
break;
//caseChat.CMD_MESG:
m'
if(login==null){
pleaseloginfirst"
intwhere=line.indexOf(Chat.SEPARATOR);
Stringrecip=line.substring(0,where);
Stringmesg=line.substring(where+1);
MESG:
+login+"
--->
+recip+"
+mesg);
ChatHandlercl=lookup(recip);
if(cl==null)
psend(CHATMASTER_ID,recip+"
notloggedin."
cl.psend(login,mesg);
//caseChat.CMD_QUIT:
q'
broadcast(CHATMASTER_ID,"
Goodbyeto"
@"
close();
//ChatHandler结束
//caseChat.CMD_BCAST:
b'
if(login!
broadcast(login,line);
B<
LFROM"
default:
Unknowcmd"
+c+"
from"
IOException:
}finally{
//sock结束,我们完成了
//还不能发送再见的消息
//得有简单的基于命令的协议才行
System.out.println(login+SEP+"
AllDone"
clients.remove(this);
if(clients.size()==0){
System.out.println(CHATMASTER_ID+SEP+
I'
msolonelyIcouldcry>
}elseif(clients.size()==1){
ChatHandlerlast=(ChatHandler)clients.get(0);
last.send(CHATMASTER_ID,"
Hey,youaretalkingtoyourselfagain"
Therearenow"
+clients.size()+"
protectedvoidclose(){
if(clientSock==null){
closewhennotopen"
clientSock.close();
clientSock=null;
Failureduringcloseto"
//发送一条消息给用户
publicvoidsend(Stringsender,Stringmesg){
pw.println(sender+SEP+"
*>
//发送私有的消息
protectedvoidpsend(Stringsender,Stringmsg){
send("
<
*"
+sender+"
msg);
//发送一条消息给所有的用户
publicvoidbroadcast(Stringsender,Stringmesg){
Broadcasting"
+sender+SEP+mesg);
for(inti=0;
i<
clients.size();
i++){
ChatHandlersib=(ChatHandler)clients.get(i);
if(DEBUG)
Sendingto"
+sib);
sib.send(sender,mesg);
if(DEBUG)System.out.println("
Donebroadcast"
protectedChatHandlerlookup(Stringnick){
ChatHandlercl=(ChatHandler)clients.get(i);
if(cl.login.equals(nick))
returncl;
returnnull;
//将ChatHandler对象转换成一个字符串
publicStringtoString(){
return"
ChatHandler["
]"
publicclassChatParameter{
publicstaticfinalcharCMD_BCAST='
publicstaticfinalcharCMD_LOGIN='
publicstaticfinalcharCMD_MESG='
publicstaticfinalcharCMD_QUIT='
publicstaticfinalcharSEPARATOR='
'
//?
?
publicstaticfinalintPORTNUM=7777;
publicbooleanisValidLoginName(Stringline){
if(line.equals("
CHATMASTER_ID"
))
returnfalse;
returntrue;
publicvoidmain(String[]argv){
}
importjava.util.Hashtable;
publicclassChatAreaextendsPanelimplementsActionListener,Runnable
{
Socketsocket=null;
DataInputStreamin=null;
DataOutputStreamout=null;
ThreadthreadMessage=null;
TextArea谈话显示区,私聊显示区=null;
TextField送出信息=null;
Button确定,刷新谈话区,刷新私聊区;
Label提示条=null;
Stringname=null;
HashtablelistTable;
ListlistComponent=null;
ChoiceprivateChatLi
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