引言
综合应用java的gui编程和网络编程，实现一个能够支持多组用户同时使用的聊天室软件。该聊天室具有比较友好的gui界面，并使用c/s模式，支持多个用户同时使用，用户可以自己选择加入或者创建房间，和房间内的其他用户互发信息（文字和图片）
主要功能
客户端的功能主要包括如下的功能：
- 选择连上服务端
- 显示当前房间列表（包括房间号和房间名称）
- 选择房间进入
- 多个用户在线群聊
- 可以发送表情（用本地的，实际上发送只发送表情的代码）
- 退出房间
- 选择创建房间
- 房间里没人（房主退出），导致房间解散
- 显示系统提示消息
- 显示用户消息
- 构造标准的消息结构发送
- 维护gui所需的数据模型
服务端的功能主要包括：
- 维护用户信息和房间信息
- 处理用户发送来的消息选择转发或者回复处理结果
- 构造标准的消息结构发送
架构
整个程序采用c/s设计架构，分为一个服务端和多个客户端。服务端开放一个端口给所有开客户端，客户端连接该端口并收发信息，服务端在内部维护客户端的组，并对每一个客户端都用一个子线程来收发信息
基本类的设计
user类
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package user;
import java.io.bufferedreader;
import java.io.ioexception;
import java.io.inputstreamreader;
import java.io.printwriter;
import java.net.socket;
/**
*
* @author lannooo
*
*/
public class user {
private string name;
private long id;
private long roomid;
private socket socket;
private bufferedreader br;
private printwriter pw;
/**
*
* @param name: 设置user的姓名
* @param id：设置user的id
* @param socket:保存用户连接的socket
* @throws ioexception
*/
public user(string name, long id, final socket socket) throws ioexception {
this.name=name;
this.id=id;
this.socket=socket;
this.br=new bufferedreader(new inputstreamreader(
socket.getinputstream()));
this.pw=new printwriter(socket.getoutputstream());
}
/**
* 获得该用户的id
* @return id
*/
public long getid() {
return id;
}
/**
* 设置该用户的id
* @param id 新的id
*/
public void setid(long id) {
this.id = id;
}
/**
* 获得用户当前所在的房间号
* @return roomid
*/
public long getroomid() {
return roomid;
}
/**
* 设置当前用户的所在的房间号
* @param roomid
*/
public void setroomid(long roomid) {
this.roomid = roomid;
}
/**
* 设置当前用户在聊天室中的昵称
* @param name
*/
public void setname(string name) {
this.name = name;
}
/**
* 返回当前用户在房间中的昵称
* @return
*/
public string getname() {
return name;
}
/**
* 返回当前用户连接的socket实例
* @return
*/
public socket getsocket() {
return socket;
}
/**
* 设置当前用户连接的socket
* @param socket
*/
public void setsocket(socket socket) {
this.socket = socket;
}
/**
* 获得该用户的消息读取辅助类bufferedreader实例
* @return
*/
public bufferedreader getbr() {
return br;
}
/**
* 设置 用户的消息读取辅助类
* @param br
*/
public void setbr(bufferedreader br) {
this.br = br;
}
/**
* 获得消息写入类实例
* @return
*/
public printwriter getpw() {
return pw;
}
/**
* 设置消息写入类实例
* @param pw
*/
public void setpw(printwriter pw) {
this.pw = pw;
}
/**
* 重写了用户类打印的函数
*/
@override
public string tostring() {
return "#user"+id+"#"+name+"[#room"+roomid+"#]<socket:"+socket+">";
}
}
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room类
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package room;
import java.util.arraylist;
import java.util.list;
import user.user;
/**
*
* @author lannooo
*
*/
public class room {
private string name;
private long roomid;
private arraylist<user> list;
private int totalusers;
/**
* 获得房间的名字
* @return name
*/
public string getname() {
return name;
}
/**
* 设置房间的新名字
* @param name
*/
public void setname(string name) {
this.name = name;
}
/**
* 获得房间的id号
* @return
*/
public long getroomid() {
return roomid;
}
/**
* 设置房间的id
* @param roomid
*/
public void setroomid(long roomid) {
this.roomid = roomid;
}
/**
* 向房间中加入一个新用户
* @param user
*/
public void adduser(user user) {
if(!list.contains(user)){
list.add(user);
totalusers++;
}else{
system.out.println("user is already in room<"+name+">:"+user);
}
}
/**
* 从房间中删除一个用户
* @param user
* @return 目前该房间中的总用户数目
*/
public int deluser(user user){
if(list.contains(user)){
list.remove(user);
return --totalusers;
}else{
system.out.println("user is not in room<"+name+">:"+user);
return totalusers;
}
}
/**
* 获得当前房间的用户列表
* @return
*/
public arraylist<user> getusers(){
return list;
}
/**
* 获得当前房间的用户昵称的列表
* @return
*/
public string[] getusernames(){
string[] userlist = new string[list.size()];
int i=0;
for(user each: list){
userlist[i++]=each.getname();
}
return userlist;
}
/**
* 使用房间的名称和id来new一个房间
* @param name
* @param roomid
*/
public room(string name, long roomid) {
this.name=name;
this.roomid=roomid;
this.totalusers=0;
list = new arraylist<>();
}
}
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roomlist类
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package room;
import java.awt.image.directcolormodel;
import java.util.hashmap;
import java.util.iterator;
import java.util.map;
import java.util.map.entry;
import java.util.set;
import user.user;
/**
*
* @author lannooo
*
*/
public class roomlist {
private hashmap<long, room> map;
private long unusedroomid;
public static long max_rooms = 9999;
private int totalrooms;
/**
* 未使用的roomid从1算起，起始的房间总数为0
*/
public roomlist(){
map = new hashmap<>();
unusedroomid = 1;
totalrooms = 0;
}
/**
* 创建一个新的房间，使用未使用的房间号进行创建，如果没有可以使用的则就创建失败
* @param name： 房间的名字
* @return 创建的房间的id
*/
public long createroom(string name){
if(totalrooms<max_rooms){
if(name.length()==0){
name = ""+unusedroomid;
}
room room = new room(name, unusedroomid);
map.put(unusedroomid, room);
totalrooms++;
return unusedroomid++;
}else{
return -1;
}
}
/**
* 用户加入一个房间
* @param user
* @param roomid
* @return
*/
public boolean join(user user, long roomid){
if(map.containskey(roomid)){
map.get(roomid).adduser(user);
return true;
}else{
return false;
}
}
/**
* 用户退出他的房间
* @param user
* @param roomid
* @return
*/
public int esc(user user, long roomid){
if(map.containskey(roomid)){
int number = map.get(roomid).deluser(user);
/*如果这个房间剩下的人数为0，那么删除该房间*/
if(number==0){
map.remove(roomid);
totalrooms--;
return 0;
}
return 1;
}else{
return -1;
}
}
/**
* 列出所有房间的列表，返回一个二维数组，strings[i][0]放房间的id，string[i][1]放房间的name
* @return
*/
public string[][] listrooms(){
string[][] strings = new string[totalrooms][2];
int i=0;
/*将map转化为set并使用迭代器来遍历*/
set<entry<long, room>> set = map.entryset();
iterator<entry<long, room>> iterator = set.iterator();
while(iterator.hasnext()){
map.entry<long, room> entry = iterator.next();
long key = entry.getkey();
room value = entry.getvalue();
strings[i][0]=""+key;
strings[i][1]=value.getname();
}
return strings;
}
/**
* 通过roomid来获得房间
* @param roomid
* @return
*/
public room getroom(long roomid){
if(map.containskey(roomid)){
return map.get(roomid);
}
else
return null;
}
}
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服务端
server
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package server;
import java.net.serversocket;
import java.net.socket;
import java.util.arraylist;
import java.util.hashmap;
import java.util.map;
import org.json.*;
import room.room;
import room.roomlist;
import user.user;
/**
*
* @author lannooo
*
*/
public class server {
private arraylist<user> allusers;
private roomlist rooms;
private int port;
private serversocket ss;
private long unuseduserid;
public final long max_users = 999999;
/**
* 通过port号来构造服务器端对象
* 维护一个总的用户列表和一个房间列表
* @param port
* @throws exception
*/
public server(int port) throws exception {
allusers = new arraylist<>();
rooms = new roomlist();
this.port=port;
unuseduserid=1;
ss = new serversocket(port);
system.out.println("server is builded!");
}
/**
* 获得下一个可用的用户id
* @return
*/
private long getnextuserid(){
if(unuseduserid < max_users)
return unuseduserid++;
else
return -1;
}
/**
* 开始监听，当接受到新的用户连接，就创建一个新的用户，并添加到用户列表中
* 然后创建一个新的服务线程用于收发该用户的消息
* @throws exception
*/
public void startlisten() throws exception{
while(true){
socket socket = ss.accept();
long id = getnextuserid();
if(id != -1){
user user = new user("user"+id, id, socket);
system.out.println(user.getname() + " is login...");
allusers.add(user);
serverthread thread = new serverthread(user, allusers, rooms);
thread.start();
}else{
system.out.println("server is full!");
socket.close();
}
}
}
/**
* 测试用main方法，设置侦听端口为9999，并开始监听
* @param args
*/
public static void main(string[] args) {
try {
server server = new server(9999);
server.startlisten();
} catch (exception e) {
e.printstacktrace();
}
}
}
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serverthread
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package server;
import java.io.ioexception;
import java.io.printwriter;
import java.net.socketexception;
import java.util.arraylist;
import java.util.regex.matcher;
import java.util.regex.pattern;
import room.room;
import room.roomlist;
import user.user;
/**
*
* @author lannooo
*
*/
public class serverthread extends thread {
private user user;
private arraylist<user> userlist;/*保存用户列表*/
private roomlist map; /*保存房间列表*/
private long roomid;
private printwriter pw;
/**
* 通过用户的对象实例、全局的用户列表、房间列表进行构造
* @param user
* @param userlist
* @param map
*/
public serverthread(user user,
arraylist<user> userlist, roomlist map){
this.user=user;
this.userlist=userlist;
this.map=map;
pw=null;
roomid = -1;
}
/**
* 线程运行部分，持续读取用户socket发送来的数据，并解析
*/
public void run(){
try{
while (true) {
string msg=user.getbr().readline();
system.out.println(msg); /*解析用户的数据格式*/
parsemsg(msg);
}
}catch (socketexception se) { /*处理用户断开的异常*/
system.out.println("user "+user.getname()+" logout.");
}catch (exception e) { /*处理其他异常*/
e.printstacktrace();
}finally {
try {
/*
* 用户断开或者退出，需要把该用户移除
* 并关闭socket
*/
remove(user);
user.getbr().close();
user.getsocket().close();
} catch (ioexception ioe) {
ioe.printstacktrace();
}
}
}
/**
* 用正则表达式匹配数据的格式，根据不同的指令类型，来调用相应的方法处理
* @param msg
*/
private void parsemsg(string msg){
string code = null;
string message=null;
if(msg.length()>0){
/*匹配指令类型部分的字符串*/
pattern pattern = pattern.compile("<code>(.*)</code>");
matcher matcher = pattern.matcher(msg);
if(matcher.find()){
code = matcher.group(1);
}
/*匹配消息部分的字符串*/
pattern = pattern.compile("<msg>(.*)</msg>");
matcher = pattern.matcher(msg);
if(matcher.find()){
message = matcher.group(1);
}
switch (code) {
case "join":
// add to the room
// code = 1, 直接显示在textarea中
// code = 11, 在list中加入
// code = 21, 把当前房间里的所有用户返回给client
if(roomid == -1){
roomid = long.parselong(message);
map.join(user, roomid);
sendroommsgexceptself(buildcodewithmsg("<name>"+user.getname()+"</name><id>"+user.getid()+"</id>", 11));
// 这个消息需要加入房间里已有用户的列表
returnmsg(buildcodewithmsg("你加入了房间:" + map.getroom(roomid).getname(), 1));
returnmsg(buildcodewithmsg(getmembersinroom(), 21));
}else{
map.esc(user, roomid);
sendroommsg(buildcodewithmsg(""+user.getid(), 12));
long oldroomid = roomid;
roomid = long.parselong(message);
map.join(user, roomid);
sendroommsgexceptself(buildcodewithmsg("<name>"+user.getname()+"</name><id>"+user.getid()+"</id>", 11));
returnmsg(buildcodewithmsg("你退出房间:" + map.getroom(oldroomid).getname() + ",并加入了房间:" + roomid,1));
returnmsg(buildcodewithmsg(getmembersinroom(), 21));
}
break;
case "esc":
// delete from room list
// code = 2， 弹窗提示
// code = 12, 对所有该房间的其他用户发送该用户退出房间的信息，从list中删除
if(roomid!=-1){
int flag=map.esc(user, roomid);
sendroommsgexceptself(buildcodewithmsg(""+user.getid(), 12));
long oldroomid=roomid;
roomid = -1;
returnmsg(buildcodewithmsg("你已经成功退出房间，不会收到消息", 2));
if(flag==0){
sendmsg(buildcodewithmsg(""+oldroomid, 13));
}
}else{
returnmsg(buildcodewithmsg("你尚未加入任何房间", 2));
}
break;
case "list":
// list all the rooms
// code = 3, 在客户端解析rooms，并填充roomlist
returnmsg(buildcodewithmsg(getroomslist(), 3));
break;
case "message":
// send message
// code = 4, 自己收到的话，打印的是‘你说：....'否则打印user id对应的name
sendroommsg(buildcodewithmsg("<from>"+user.getid()+"</from><smsg>"+message+"</smsg>", 4));
break;
case "create":
// create a room
// code=5,提示用户进入了房间
// code=15,需要在其他所有用户的room列表中更新
roomid = map.createroom(message);
map.join(user, roomid);
sendmsg(buildcodewithmsg("<rid>"+roomid+"</rid><rname>"+message+"</rname>", 15));
returnmsg(buildcodewithmsg("你进入了创建的房间："+map.getroom(roomid).getname(), 5));
returnmsg(buildcodewithmsg(getmembersinroom(), 21));
break;
case "setname":
// set name for user
// code=16,告诉房间里的其他人，你改了昵称
user.setname(message);
sendroommsg(buildcodewithmsg("<id>"+user.getid()+"</id><name>"+message+"</name>", 16));
break;
default:
// returnmsg("something unknown");
system.out.println("not valid message from user"+user.getid());
break;
}
}
}
/**
* 获得该用户房间中的所有用户列表，并构造成一定格式的消息返回
* @return
*/
private string getmembersinroom(){
/*先从room列表获得该用户的room*/
room room = map.getroom(roomid);
stringbuffer stringbuffer = new stringbuffer();
if(room != null){
/*获得房间中所有的用户的列表，然后构造成一定的格式发送回去*/
arraylist<user> users = room.getusers();
for(user each: users){
stringbuffer.append("<member><name>"+each.getname()+
"</name><id>"+each.getid()+"</id></member>");
}
}
return stringbuffer.tostring();
}
/**
* 获得所有房间的列表，并构造成一定的格式
* @return
*/
private string getroomslist(){
string[][] strings = map.listrooms();
stringbuffer sb = new stringbuffer();
for(int i=0; i<strings.length; i++){
sb.append("<room><rname>"+strings[i][1]+
"</rname><rid>"+strings[i][0]+"</rid></room>");
}
return sb.tostring();
}
/**
* 构造成一个统一的消息格式
* @param msg
* @param code
* @return
*/
private string buildcodewithmsg(string msg, int code){
return "<code>"+code+"</code><msg>"+msg+"</msg>\n";
}
/**
* 这个是群发消息：全体用户,code>10
* @param msg
*/
private void sendmsg(string msg) {
// system.out.println("in sendmsg()");
/*取出用户列表中的每一个用户来发送消息*/
for(user each:userlist){
try {
pw=each.getpw();
pw.println(msg);
pw.flush();
system.out.println(msg);
} catch (exception e) {
system.out.println("exception in sendmsg()");
}
}
}
/**
* 只对同一房间的用户发：code>10
* @param msg
*/
private void sendroommsg(string msg){
/*先获得该用户的房间号，然后往该房间发送消息*/
room room = map.getroom(roomid);
if(room != null){
arraylist<user> users = room.getusers();
for(user each: users){
pw = each.getpw();
pw.println(msg);
pw.flush();
}
}
}
/**
* 向房间中除了该用户自己，发送消息
* @param msg
*/
private void sendroommsgexceptself(string msg){
room room = map.getroom(roomid);
if(room != null){
arraylist<user> users = room.getusers();
for(user each: users){
if(each.getid()!=user.getid()){
pw = each.getpw();
pw.println(msg);
pw.flush();
}
}
}
}
/**
* 对于client的来信，返回一个结果,code<10
* @param msg
*/
private void returnmsg(string msg){
try{
pw = user.getpw();
pw.println(msg);
pw.flush();
}catch (exception e) {
system.out.println("exception in returnmsg()");
}
}
/**
* 移除该用户，并向房间中其他用户发送该用户已经退出的消息
* 如果房间中没人了，那么就更新房间列表给所有用户
* @param user
*/
private void remove(user user){
if(roomid!=-1){
int flag=map.esc(user, roomid);
sendroommsgexceptself(buildcodewithmsg(""+user.getid(), 12));
long oldroomid=roomid;
roomid = -1;
if(flag==0){
sendmsg(buildcodewithmsg(""+oldroomid, 13));
}
}
userlist.remove(user);
}
}
|
客户端
client
|
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|
package client;
import java.awt.borderlayout;
import java.awt.color;
import java.awt.dimension;
import java.awt.flowlayout;
import java.awt.font;
import java.awt.gridbagconstraints;
import java.awt.gridbaglayout;
import java.awt.insets;
import java.awt.event.actionevent;
import java.awt.event.actionlistener;
import java.io.bufferedreader;
import java.io.ioexception;
import java.io.inputstreamreader;
import java.io.printwriter;
import java.net.socket;
import java.util.hashmap;
import java.util.iterator;
import java.util.set;
import java.util.regex.matcher;
import java.util.regex.pattern;
import javax.swing.defaultlistmodel;
import javax.swing.icon;
import javax.swing.imageicon;
import javax.swing.jbutton;
import javax.swing.jframe;
import javax.swing.jlabel;
import javax.swing.jlist;
import javax.swing.joptionpane;
import javax.swing.jpanel;
import javax.swing.jscrollbar;
import javax.swing.jscrollpane;
import javax.swing.jtextfield;
import javax.swing.jtextpane;
import javax.swing.uimanager;
import javax.swing.unsupportedlookandfeelexception;
import javax.swing.text.badlocationexception;
import javax.swing.text.simpleattributeset;
import javax.swing.text.style;
import javax.swing.text.styleconstants;
import javax.swing.text.styleddocument;
/**
*
* @author lannooo
*
*/
public class client implements actionlistener{
private jframe frame;
private socket socket;
private bufferedreader br;
private printwriter pw;
private string name;
private hashmap<string, integer> rooms_map;
private hashmap<string, integer> users_map;
private jtextfield host_textfield;
private jtextfield port_textfield;
private jtextfield text_field;
private jtextfield name_textfiled;
private jlabel rooms_label;
private jlabel users_label;
private jlist<string> roomlist;
private jlist<string> userlist;
private jtextpane msgarea;
private jscrollpane textscrollpane;
private jscrollbar vertical;
defaultlistmodel<string> rooms_model;
defaultlistmodel<string> users_model;
/*
* 构造函数
* 该客户端对象维护两个map，房间的hashmap和房间中用户的hashmap
* 作为列表组件的数据模型
*/
public client(){
rooms_map = new hashmap<>();
users_map = new hashmap<>();
initialize();
}
/**
* 连接服务端，指定host和port
* @param host
* @param port
* @return
*/
public boolean connect(string host, int port){
try {
socket = new socket(host, port);
system.out.println("connected to server!"+socket.getremotesocketaddress());
br=new bufferedreader(new inputstreamreader(system.in));
pw=new printwriter(socket.getoutputstream());
/*
* 创建一个接受和解析服务器消息的线程
* 传入当前客户端对象的指针，作为句柄调用相应的处理函数
*/
clientthread thread = new clientthread(socket, this);
thread.start();
return true;
} catch (ioexception e) {
system.out.println("server error");
joptionpane.showmessagedialog(frame, "服务器无法连接！");
return false;
}
}
/*当前进程作为只发送消息的线程，从命令行中获取输入*/
// public void sendmsg(){
// string msg;
// try {
// while(true){
// msg = br.readline();
// pw.println(msg);
// pw.flush();
// }
// } catch (ioexception e) {
// system.out.println("error when read msg and to send.");
// }
// }
/**
* 发给服务器的消息，先经过一定的格式构造再发送
* @param msg
* @param code
*/
public void sendmsg(string msg, string code){
try {
pw.println("<code>"+code+"</code><msg>"+msg+"</msg>");
pw.flush();
} catch (exception e) {
//一般是没有连接的问题
system.out.println("error in sendmsg()");
joptionpane.showmessagedialog(frame, "请先连接服务器！");
}
}
/**
* 窗口初始化
*/
private void initialize() {
/*设置窗口的ui风格和字体*/
setuistyle();
setuifont();
jframe frame = new jframe("chatonline");
jpanel panel = new jpanel(); /*主要的panel，上层放置连接区，下层放置消息区，
中间是消息面板，左边是room列表，右边是当前room的用户列表*/
jpanel headpanel = new jpanel(); /*上层panel，用于放置连接区域相关的组件*/
jpanel footpanel = new jpanel(); /*下层panel，用于放置发送信息区域的组件*/
jpanel leftpanel = new jpanel(); /*左边panel，用于放置房间列表和加入按钮*/
jpanel rightpanel = new jpanel(); /*右边panel，用于放置房间内人的列表*/
/*最上层的布局，分中间，东南西北五个部分*/
borderlayout layout = new borderlayout();
/*格子布局，主要用来设置西、东、南三个部分的布局*/
gridbaglayout gridbaglayout = new gridbaglayout();
/*主要设置北部的布局*/
flowlayout flowlayout = new flowlayout();
/*设置初始窗口的一些性质*/
frame.setbounds(100, 100, 800, 600);
frame.setdefaultcloseoperation(jframe.exit_on_close);
frame.setcontentpane(panel);
frame.setlayout(layout);
/*设置各个部分的panel的布局和大小*/
headpanel.setlayout(flowlayout);
footpanel.setlayout(gridbaglayout);
leftpanel.setlayout(gridbaglayout);
rightpanel.setlayout(gridbaglayout);
leftpanel.setpreferredsize(new dimension(130, 0));
rightpanel.setpreferredsize(new dimension(130, 0));
/*以下均是headpanel中的组件*/
host_textfield = new jtextfield("127.0.0.1");
port_textfield = new jtextfield("9999");
name_textfiled = new jtextfield("匿名");
host_textfield.setpreferredsize(new dimension(100, 25));
port_textfield.setpreferredsize(new dimension(70, 25));
name_textfiled.setpreferredsize(new dimension(150, 25));
jlabel host_label = new jlabel("服务器ip");
jlabel port_label = new jlabel("端口");
jlabel name_label = new jlabel("昵称");
jbutton head_connect = new jbutton("连接");
// jbutton head_change = new jbutton("确认更改");
jbutton head_create = new jbutton("创建房间");
headpanel.add(host_label);
headpanel.add(host_textfield);
headpanel.add(port_label);
headpanel.add(port_textfield);
headpanel.add(head_connect);
headpanel.add(name_label);
headpanel.add(name_textfiled);
// headpanel.add(head_change);
headpanel.add(head_create);
/*以下均是footpanel中的组件*/
jbutton foot_emoji = new jbutton("表情");
jbutton foot_send = new jbutton("发送");
text_field = new jtextfield();
footpanel.add(text_field, new gridbagconstraints(0, 0, 1, 1, 100, 100,
gridbagconstraints.center, gridbagconstraints.both, new insets(0, 0, 0, 0), 0, 0));
footpanel.add(foot_emoji, new gridbagconstraints(1, 0, 1, 1, 1.0, 1.0,
gridbagconstraints.center, gridbagconstraints.both, new insets(0, 0, 0, 0), 0, 0));
footpanel.add(foot_send, new gridbagconstraints(2, 0, 1, 1, 1.0, 1.0,
gridbagconstraints.center, gridbagconstraints.both, new insets(0, 0, 0, 0), 0, 0));
/*两边的格子中的组件*/
rooms_label = new jlabel("当前房间数：0");
users_label = new jlabel("房间内人数：0");
jbutton join_button = new jbutton("加入房间");
jbutton esc_button = new jbutton("退出房间");
rooms_model = new defaultlistmodel<>();
users_model = new defaultlistmodel<>();
// rooms_model.addelement("房间1");
// rooms_model.addelement("房间2");
// rooms_model.addelement("房间3");
// string fangjian = "房间1";
// rooms_map.put(fangjian, 1);
roomlist = new jlist<>(rooms_model);
userlist = new jlist<>(users_model);
jscrollpane roomlistpane = new jscrollpane(roomlist);
jscrollpane userlistpane = new jscrollpane(userlist);
leftpanel.add(rooms_label, new gridbagconstraints(0, 0, 1, 1, 1, 1,
gridbagconstraints.center, gridbagconstraints.both, new insets(0, 0, 0, 0), 0, 0));
leftpanel.add(join_button, new gridbagconstraints(0, 1, 1, 1, 1, 1,
gridbagconstraints.center, gridbagconstraints.both, new insets(0, 0, 0, 0), 0, 0));
leftpanel.add(esc_button, new gridbagconstraints(0, 2, 1, 1, 1, 1,
gridbagconstraints.center, gridbagconstraints.both, new insets(0, 0, 0, 0), 0, 0));
leftpanel.add(roomlistpane, new gridbagconstraints(0, 3, 1, 1, 100, 100,
gridbagconstraints.center, gridbagconstraints.both, new insets(0, 0, 0, 0), 0, 0));
rightpanel.add(users_label, new gridbagconstraints(0, 0, 1, 1, 1, 1,
gridbagconstraints.center, gridbagconstraints.both, new insets(0, 0, 0, 0), 0, 0));
rightpanel.add(userlistpane,new gridbagconstraints(0, 1, 1, 1, 100, 100,
gridbagconstraints.center, gridbagconstraints.both, new insets(0, 0, 0, 0), 0, 0));
/*中间的文本区组件*/
msgarea = new jtextpane();
msgarea.seteditable(false);
textscrollpane = new jscrollpane();
textscrollpane.setviewportview(msgarea);
vertical = new jscrollbar(jscrollbar.vertical);
vertical.setautoscrolls(true);
textscrollpane.setverticalscrollbar(vertical);
/*设置顶层布局*/
panel.add(headpanel, "north");
panel.add(footpanel, "south");
panel.add(leftpanel, "west");
panel.add(rightpanel, "east");
panel.add(textscrollpane, "center");
/*注册各种事件*/
/*连接服务器*/
head_connect.addactionlistener(this);
/*发送消息，如果没有连接则会弹窗提示*/
foot_send.addactionlistener(this);
/*改名字*/
// head_change.addactionlistener(this);
/*创建房间*/
head_create.addactionlistener(this);
/*发送表情*/
foot_emoji.addactionlistener(this);
/*加入room*/
join_button.addactionlistener(this);
/*退出房间*/
esc_button.addactionlistener(this);
/*最终显示*/
frame.setvisible(true);
}
/**
* 事件监听处理
*/
@override
public void actionperformed(actionevent e) {
string cmd = e.getactioncommand();
switch (cmd) {
case "连接": /*点击连接按钮*/
string strhost = host_textfield.gettext();
string strport = port_textfield.gettext();
connect(strhost, integer.parseint(strport));
string nameseted = joptionpane.showinputdialog("请输入你的昵称："); /*提示输入昵称*/
name_textfiled.settext(nameseted);
name_textfiled.seteditable(false);
port_textfield.seteditable(false);
host_textfield.seteditable(false);
/*发送设置姓名的消息和列出用户列表的消息*/
sendmsg(nameseted, "setname");
sendmsg("", "list");
break;
// case "确认更改":
// string strname = name_textfiled.gettext();
// name = strname;
// sendmsg(strname, "setname");
// break;
case "加入房间": /*选择房间后，点击加入房间按钮*/
string selected = roomlist.getselectedvalue();
if(rooms_map.containskey(selected)){
sendmsg(""+rooms_map.get(selected), "join");
}
break;
case "退出房间": /*点击退出房间的按钮*/
sendmsg("", "esc");
break;
case "发送": /*点击发送消息的按钮*/
string text = text_field.gettext();
text_field.settext("");
sendmsg(text, "message");
break;
case "表情": /*发送表情，新建一个表情窗口，并直接在表情窗口中处理消息发送*/
icondialog dialog = new icondialog(frame, this);
break;
case "创建房间": /*点击创建房间的按钮，弹出提示框数据房间名称*/
string string = joptionpane.showinputdialog("请输入你的房间名称");
if(string==null || string.equals("")){
string = name+(int)(math.random()*10000)+"的房间";
}
sendmsg(string, "create");
break;
default:
break;
}
}
/*很多辅助和clientthread互动的*/
/**
* 加入用户，通过正则表达式，匹配消息内容中的用户信息
* @param content
*/
public void adduser(string content){
if(content.length()>0){
pattern pattern = pattern.compile("<name>(.*)</name><id>(.*)</id>");
matcher matcher = pattern.matcher(content);
if(matcher.find()){
/*
* 获得用户的name和id
* 加入用户列表
* 在消息区显示系统提示
*/
string name = matcher.group(1);
string id = matcher.group(2);
insertuser(integer.parseint(id), name);
insertmessage(textscrollpane, msgarea, null, "系统：", name+"加入了聊天室");
}
}
users_label.settext("房间内人数："+users_map.size()); /*更新房间内的人数*/
}
/**
* 删除用户
* @param content
*/
public void deluser(string content){
if(content.length()>0){
int id = integer.parseint(content);
/*
* 从维护的用户map中取得所有的用户名字，然后去遍历匹配的用户
* 匹配到的用户名字从相应的数据模型中移除
* 并从map中移除，并在消息框中提示系统消息
*/
set<string> set = users_map.keyset();
iterator<string> iter = set.iterator();
string name=null;
while(iter.hasnext()){
name = iter.next();
if(users_map.get(name)==id){
users_model.removeelement(name);
break;
}
}
users_map.remove(name);
insertmessage(textscrollpane, msgarea, null, "系统：", name+"退出了聊天室");
}
users_label.settext("房间内人数："+users_map.size());
}
/**
* 更新用户信息
* @param content
*/
public void updateuser(string content){
if(content.length()>0){
pattern pattern = pattern.compile("<id>(.*)</id><name>(.*)</name>");
matcher matcher = pattern.matcher(content);
if(matcher.find()){
string id = matcher.group(1);
string name = matcher.group(2);
insertuser(integer.parseint(id), name);
}
}
}
/**
* 列出所有用户
* @param content
*/
public void listusers(string content){
string name = null;
string id=null;
pattern rough_pattern=null;
matcher rough_matcher=null;
pattern detail_pattern=null;
/*
* 先用正则表达式匹配用户信息
* 然后插入数据模型中
* 并更新用户数据模型中的条目
*/
if(content.length()>0){
rough_pattern = pattern.compile("<member>(.*?)</member>");
rough_matcher = rough_pattern.matcher(content);
while(rough_matcher.find()){
string detail = rough_matcher.group(1);
detail_pattern = pattern.compile("<name>(.*)</name><id>(.*)</id>");
matcher detail_matcher = detail_pattern.matcher(detail);
if(detail_matcher.find()){
name = detail_matcher.group(1);
id = detail_matcher.group(2);
insertuser(integer.parseint(id), name);
}
}
}
users_label.settext("房间内人数："+users_map.size());
}
/**
* 直接在textarea中显示消息
* @param content
*/
public void updatetextarea(string content){
insertmessage(textscrollpane, msgarea, null, "系统：", content);
}
/**
* 在textarea中显示其他用户的消息
* 先用正则匹配，再显示消息
* 其中还需要匹配emoji表情的编号
* @param content
*/
public void updatetextareafromuser(string content){
if(content.length()>0){
pattern pattern = pattern.compile("<from>(.*)</from><smsg>(.*)</smsg>");
matcher matcher = pattern.matcher(content);
if(matcher.find()){
string from = matcher.group(1);
string smsg = matcher.group(2);
string fromname = getusername(from);
if(fromname.equals(name))
fromname = "你";
if(smsg.startswith("<emoji>")){
string emojicode = smsg.substring(7, smsg.length()-8);
// system.out.println(emojicode);
insertmessage(textscrollpane, msgarea, emojicode, fromname+"说：", null);
return ;
}
insertmessage(textscrollpane, msgarea, null, fromname+"说：", smsg);
}
}
}
/**
* 显示退出的结果
* @param content
*/
public void showescdialog(string content){
joptionpane.showmessagedialog(frame, content);
/*清除消息区内容，清除用户数据模型内容和用户map内容，更新房间内人数*/
msgarea.settext("");
users_model.clear();
users_map.clear();
users_label.settext("房间内人数：0");
}
/**
* 新增一个room
* @param content
*/
public void addroom(string content){
if(content.length()>0){
pattern pattern = pattern.compile("<rid>(.*)</rid><rname>(.*)</rname>");
matcher matcher = pattern.matcher(content);
if(matcher.find()){
string rid = matcher.group(1);
string rname = matcher.group(2);
insertroom(integer.parseint(rid), rname);
}
}
rooms_label.settext("当前房间数："+rooms_map.size());
}
/**
* 删除一个room
* @param content
*/
public void delroom(string content){
if(content.length()>0){
int delroomid = integer.parseint(content);
set<string> set = rooms_map.keyset();
iterator<string> iter = set.iterator();
string rname=null;
while(iter.hasnext()){
rname = iter.next();
if(rooms_map.get(rname)==delroomid){
rooms_model.removeelement(rname);
break;
}
}
rooms_map.remove(rname);
}
rooms_label.settext("当前房间数："+rooms_map.size());
}
/**
* 列出目前所有的rooms
* @param content
*/
public void listrooms(string content){
string rname = null;
string rid=null;
pattern rough_pattern=null;
matcher rough_matcher=null;
pattern detail_pattern=null;
if(content.length()>0){
rough_pattern = pattern.compile("<room>(.*?)</room>");
rough_matcher = rough_pattern.matcher(content);
while(rough_matcher.find()){
string detail = rough_matcher.group(1);
detail_pattern = pattern.compile("<rname>(.*)</rname><rid>(.*)</rid>");
matcher detail_matcher = detail_pattern.matcher(detail);
if(detail_matcher.find()){
rname = detail_matcher.group(1);
rid = detail_matcher.group(2);
insertroom(integer.parseint(rid), rname);
}
}
}
rooms_label.settext("当前房间数："+rooms_map.size());
}
/**
* 插入一个room
* @param rid
* @param rname
*/
private void insertroom(integer rid, string rname){
if(!rooms_map.containskey(rname)){
rooms_map.put(rname, rid);
rooms_model.addelement(rname);
}else{
rooms_map.remove(rname);
rooms_model.removeelement(rname);
rooms_map.put(rname, rid);
rooms_model.addelement(rname);
}
rooms_label.settext("当前房间数："+rooms_map.size());
}
/**
* 插入一个user
* @param id
* @param name
*/
private void insertuser(integer id, string name){
if(!users_map.containskey(name)){
users_map.put(name, id);
users_model.addelement(name);
}else{
users_map.remove(name);
users_model.removeelement(name);
users_map.put(name, id);
users_model.addelement(name);
}
users_label.settext("房间内人数："+users_map.size());
}
/**
* 获得用户的姓名
* @param strid
* @return
*/
private string getusername(string strid){
int uid = integer.parseint(strid);
set<string> set = users_map.keyset();
iterator<string> iterator = set.iterator();
string cur=null;
while(iterator.hasnext()){
cur = iterator.next();
if(users_map.get(cur)==uid){
return cur;
}
}
return "";
}
/**
* 获得用户所在房间的名称
* @param strid
* @return
*/
private string getroomname(string strid){
int rid = integer.parseint(strid);
set<string> set = rooms_map.keyset();
iterator<string> iterator = set.iterator();
string cur = null;
while(iterator.hasnext()){
cur = iterator.next();
if(rooms_map.get(cur)==rid){
return cur;
}
}
return "";
}
/**
* 打印一条消息，如果有图片就打印图片，否则打印content
* @param scrollpane
* @param textpane
* @param icon_code
* @param title
* @param content
*/
private void insertmessage(jscrollpane scrollpane, jtextpane textpane,
string icon_code, string title, string content){
styleddocument document = textpane.getstyleddocument(); /*获取textpane中的文本*/
/*设置标题的属性*/
simpleattributeset title_attr = new simpleattributeset();
styleconstants.setbold(title_attr, true);
styleconstants.setforeground(title_attr, color.blue);
/*设置正文的属性*/
simpleattributeset content_attr = new simpleattributeset();
styleconstants.setbold(content_attr, false);
styleconstants.setforeground(content_attr, color.black);
style style = null;
if(icon_code!=null){
icon icon = new imageicon("icon/"+icon_code+".png");
style = document.addstyle("icon", null);
styleconstants.seticon(style, icon);
}
try {
document.insertstring(document.getlength(), title+"\n", title_attr);
if(style!=null)
document.insertstring(document.getlength(), "\n", style);
else
document.insertstring(document.getlength(), " "+content+"\n", content_attr);
} catch (badlocationexception ex) {
system.out.println("bad location exception");
}
/*设置滑动条到最后*/
vertical.setvalue(vertical.getmaximum());
}
/**
* 设置需要美化字体的组件
*/
public static void setuifont()
{
font f = new font("微软雅黑", font.plain, 14);
string names[]={ "label", "checkbox", "popupmenu","menuitem", "checkboxmenuitem",
"jradiobuttonmenuitem","combobox", "button", "tree", "scrollpane",
"tabbedpane", "editorpane", "titledborder", "menu", "textarea","textpane",
"optionpane", "menubar", "toolbar", "togglebutton", "tooltip",
"progressbar", "tableheader", "panel", "list", "colorchooser",
"passwordfield","textfield", "table", "label", "viewport",
"radiobuttonmenuitem","radiobutton", "desktoppane", "internalframe"
};
for (string item : names) {
uimanager.put(item+ ".font",f);
}
}
/**
* 设置ui风格为当前系统的风格
*/
public static void setuistyle(){
string lookandfeel =uimanager.getsystemlookandfeelclassname();
try {
uimanager.setlookandfeel(lookandfeel);
} catch (classnotfoundexception e) {
// todo auto-generated catch block
e.printstacktrace();
} catch (instantiationexception e) {
// todo auto-generated catch block
e.printstacktrace();
} catch (illegalaccessexception e) {
// todo auto-generated catch block
e.printstacktrace();
} catch (unsupportedlookandfeelexception e) {
// todo auto-generated catch block
e.printstacktrace();
}
}
/**
* 测试用的main函数
* @param args
*/
public static void main(string[] args) {
client client = new client();
}
}
|
clientthread
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package client;
import java.io.bufferedreader;
import java.io.ioexception;
import java.io.inputstreamreader;
import java.io.printwriter;
import java.net.socket;
import java.util.regex.matcher;
import java.util.regex.pattern;
/**
*
* @author lannooo
*
*/
public class clientthread extends thread{
private socket socket;
private client client;
private bufferedreader br;
private printwriter pw;
/**
* 从过主线程传入的socket和client对象来构造
* @param socket
* @param client
*/
public clientthread(socket socket, client client){
this.client = client;
this.socket = socket;
try {
br=new bufferedreader(new inputstreamreader(socket.getinputstream()));
} catch (ioexception e) {
system.out.println("cannot get inputstream from socket.");
}
}
/**
* 不断的读数据并处理
* 调用主线程的方法来处理：client.method();
*/
public void run() {
try{
br=new bufferedreader(new inputstreamreader(socket.getinputstream()));
while(true){
string msg = br.readline();
parsemessage(msg);
}
}catch (exception e) {
e.printstacktrace();
}
}
/**
* 处理从服务器收到的消息
* @param message
*/
public void parsemessage(string message){
string code = null;
string msg=null;
/*
* 先用正则表达式匹配code码和msg内容
*/
if(message.length()>0){
pattern pattern = pattern.compile("<code>(.*)</code>");
matcher matcher = pattern.matcher(message);
if(matcher.find()){
code = matcher.group(1);
}
pattern = pattern.compile("<msg>(.*)</msg>");
matcher = pattern.matcher(message);
if(matcher.find()){
msg = matcher.group(1);
}
system.out.println(code+":"+msg);
switch(code){
case "1": /*一个普通消息处理*/
client.updatetextarea(msg);
break;
case "2": /*退出消息*/
client.showescdialog(msg);
break;
case "3": /*列出房间*/
client.listrooms(msg);
break;
case "4": /*其他用户的消息*/
client.updatetextareafromuser(msg);
break;
case "5": /*普通消息处理*/
client.updatetextarea(msg);
break;
case "11": /*添加用户*/
client.adduser(msg);
break;
case "12": /*删除用户*/
client.deluser(msg);
break;
case "13": /*删除房间*/
client.delroom(msg);
break;
case "15": /*添加房间*/
client.addroom(msg);
break;
case "16": /*更新用户名称*/
client.updateuser(msg);
break;
case "21": /*列出用户列表*/
client.listusers(msg);
break;
}
}
}
}
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icondialog（选择表情界面）
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package client;
import java.awt.container;
import java.awt.dialog;
import java.awt.flowlayout;
import java.awt.gridlayout;
import java.awt.image;
import java.awt.event.actionevent;
import java.awt.event.actionlistener;
import javax.swing.imageicon;
import javax.swing.jbutton;
import javax.swing.jdialog;
import javax.swing.jframe;
/**
*
* @author lannooo
*
*/
public class icondialog implements actionlistener {
private jdialog dialog;
private client client;
/**
* 通过frame和客户端对象来构造
* @param frame
* @param client
*/
public icondialog(jframe frame, client client) {
this.client = client;
dialog = new jdialog(frame, "请选择表情", true);
/*16个表情*/
jbutton[] icon_button = new jbutton[16];
imageicon[] icons = new imageicon[16];
/*获得弹出窗口的容器，设置布局*/
container dialogpane = dialog.getcontentpane();
dialogpane.setlayout(new gridlayout(0, 4));
/*加入表情*/
for(int i=1; i<=15; i++){
icons[i] = new imageicon("icon/"+i+".png");
icons[i].setimage(icons[i].getimage().getscaledinstance(50, 50, image.scale_default));
icon_button[i] = new jbutton(""+i, icons[i]);
icon_button[i].addactionlistener(this);
dialogpane.add(icon_button[i]);
}
dialog.setbounds(200,266,266,280);
dialog.show();
}
@override
public void actionperformed(actionevent e) {
/*构造emoji结构的消息发送*/
string cmd = e.getactioncommand();
system.out.println(cmd);
dialog.dispose();
client.sendmsg("<emoji>"+cmd+"</emoji>", "message");
}
}
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/qq_22187919/article/details/60465662