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上篇,下面是剩余Client端的部分代码:
Client.java
 1 package chatroom.client;
 2 
 3 import chatroom.setting.Ip;
 4 import java.net.DatagramSocket;
 5 import java.net.InetAddress;
 6 
 7 public class Client {
 8     
 9     //Server IP   
10     public static InetAddress iaServer;
11     //Client IP      
12     public static InetAddress iaClient;
13     //Client datagram packets  
14     public static DatagramSocket dsClient;
15     
16     //初始化:取得IP,并向Server发送握手协议。
17     public static void test(){
18         try{
19             //iaServer=…  //取得server IP
20             //iaClient=… 取得Client IP
21             //Client的端口设为5678
22             dsClient = new DatagramSocket(5678,iaClient);
23 
24             ClientSend cr = new ClientSend("up\n" + iaClient.getHostAddress());
25             cr.start();
26             cr.join();
27         }
28         catch(Exception e){
29             e.printStackTrace();
30             System.exit(1);
31         }            
32     }
33     
34     //取得用户名,用于前台显示
35     public static String getUserName(){//}
36 }
ClientSend.java
 1 package chatroom.client;
 2 
 3 import java.net.DatagramPacket;
 4 
 5 public class ClientSend extends Thread{
 6 
 7     //Sending datagram packets [ String ]
 8     private String PASSTEXT;
 9     //Sending datagram packets [ byte[] ]    
10     private byte dataSend[]; 
11     
12     public ClientSend(String str){
13         this.PASSTEXT = str;
14         this.dataSend = PASSTEXT.getBytes();
15     }
16 
17     @Override
18     public void run(){
19         send();
20     }
21 
22     //Send to server
23     private void send(){
24         try{
25             DatagramPacket dpSend= new DatagramPacket(dataSend,dataSend.length,Client.iaServer,1234);
26             Client.dsClient.send(dpSend);
27             System.out.println("Client sent: " + PASSTEXT );
28         }catch(Exception e){
29             e.printStackTrace();
30         }
31     }
32 }
ClientRecieve.java
 1 package chatroom.client;
 2 
 3 import java.net.DatagramPacket;
 4 
 5 public class ClientRecieve extends Thread{
 6 
 7     //Receiving datagram packets    
 8     private String PASSTEXT;    
 9     //Do receive or not
10     private boolean DO = true;  
11         
12     //Get datagram packets
13     public String getRecieve(){
14         return this.PASSTEXT;
15     }    
16     //When receive complate,clear datagram packets and wait next time
17     public void getComplete(){
18         this.PASSTEXT = null;
19     }        
20     //Set receive or not
21     public void setDo(boolean b){
22         this.DO = b;
23     }    
24     
25     @Override
26     public void run(){
27         recieve();
28     }
29 
30     //Recieve from server  
31     private void recieve(){
32         try{
33             while(DO){                
34                 if(this.PASSTEXT!=null){
35                     Thread.sleep(100);
36                     continue;
37                 }
38                 
39                 byte dataRecieve[]= new byte[Short.MAX_VALUE];
40                 DatagramPacket dpRecieve = new DatagramPacket(dataRecieve,dataRecieve.length,Client.iaClient,5678);
41                 Client.dsClient.receive(dpRecieve);
42                 
43                 this.PASSTEXT = new String(dpRecieve.getData()).trim();
44                 System.out.println("Client recieved: " + this.PASSTEXT);
45             }
46         }catch(Exception e){}
47     }
48     
49     //Disconnect to server 
50     public static void close(){
51         try{
52             Client.dsClient.close();
53         }
54         catch(Exception e){}
55     }    
56 }

Client端画面JavaFX文件,不需要手动编译即可打包运行。
Main.fx
  1 package test_socket;
  2 import javafx.ui.*;
  3 import java.lang.*;
  4 import java.util.*;
  5 import java.text.*;
  6 import chatroom.client.*;
  7 
  8 class ClientFX{
  9     attribute objClient:Client;    //chatroom.client.Client
 10     attribute PASSTEXT: String;  //发出的聊天消息
 11     attribute RECEIVE: String; //接收的聊天消息
 12     attribute MSG: Vector; //用于显示的所有聊天消息
 13     attribute userName: String; //client用户名
 14     operation init(obj:ClientFX,tr:ClientRecieve,control:TextArea);  
 15     operation setShowMSG(obj:ClientFX);
 16     operation send(obj:ClientFX,control:TextArea);
 17 }
 18 
 19 //obj
 20 var objClientFX = ClientFX;     //ClientFX
 21 var controlMSG = new TextArea();    //聊天信息显示区
 22 var controlPASSTEXT = new TextField(); //聊天发送区
 23 var tr = new ClientRecieve(); //receive
 24 
 25 //初始化函数
 26 operation ClientFX.init(obj:ClientFX,tr:ClientRecieve,control:TextArea){
 27     obj.objClient = new Client();
 28     obj.MSG = new Vector();
 29     obj.objClient.test();//发送握手协议
 30     obj.userName = obj.objClient.getUserName(); //取得用户名
 31   
 32     //启动接受信息监听端口
 33     tr.start();    
 34     do{          
 35         while (true){                        
 36             if(tr.getRecieve() <> null){
 37                 obj.RECEIVE = tr.getRecieve(); 
 38                 tr.getComplete();
 39                 obj.setShowMSG(obj);
 40 
 41                 control.text="";
 42                 var i=0;
 43                 var length=0;
 44                 var str =new StringBuffer();
 45                 for(i in obj.MSG.toArray()){
 46                     length++;
 47                     if(length>50){
 48                         str = new StringBuffer(str.substring(str.indexOf("\n")+1));                    
 49                     }
 50                     str.append(i);str.append("\n");                        
 51                 }   
 52                 control.text=str.toString();
 53             }            
 54             Thread.sleep(100);
 55         }      
 56     }
 57 }
 58 //发送聊天信息
 59 operation ClientFX.send(obj:ClientFX,control:TextArea){
 60     var ts = new ClientSend(obj.PASSTEXT);
 61     ts.start();
 62 }
 63 operation ClientFX.setShowMSG(obj:ClientFX) { 
 64     var dateFormat = new StringBuffer();
 65     var date = new Date();
 66     var hours = date.hours;
 67     var minutes = date.minutes;
 68     var seconds = date.seconds;
 69     if(hours<10){
 70         dateFormat.append("0");
 71     }
 72     dateFormat.append(hours);
 73     dateFormat.append(":");
 74     if(minutes<10){
 75         dateFormat.append("0");
 76     }    
 77     dateFormat.append(minutes);
 78     dateFormat.append(":");
 79     if(seconds<10){
 80         dateFormat.append("0");
 81     }       
 82     dateFormat.append(seconds);
 83     dateFormat.append(" ");
 84     dateFormat.append(obj.userName);
 85     dateFormat.append(" said: ");
 86     
 87     dateFormat.append(obj.RECEIVE);
 88     obj.MSG.add(dateFormat);
 89 }
 90 
 91 //主窗体
 92 var mainFrame = new Frame(); 
 93 mainFrame.title = "chatroom";
 94 mainFrame.width=500;
 95 mainFrame.height=545;
 96 mainFrame.centerOnScreen=true;
 97 mainFrame.resizable=false;
 98 mainFrame.onOpen = operation(){ 
 99     objClientFX.init(objClientFX,tr,controlMSG);
100 };
101 mainFrame.onClose = operation(){
102     try{
103         while(true){
104             if(tr.isAlive()){ 
105                 tr.close();
106                 tr.join();
107                 break;
108             }
109         }
110         tr = null;
111         System.gc();
112         System.exit(0);
113     }catch(e:Exception){}
114 };
115 
116 //menu
117 var mb = new MenuBar();
118 var mu = new Menu();
119 mu.text="File";
120 mu.mnemonic=F;
121 var mi=new MenuItem();
122 mi.text ="Exit";
123 mi.mnemonic=X;
124 mi.accelerator={
125     modifier: ALT
126     keyStroke: F4
127 };
128 mi.action = operation() {
129     System.exit(0);
130 };
131 mu.items = [mi];
132 mb.menus = mu;
133 mainFrame.menubar = mb;
134 
135 //content
136 var borderpanel= new BorderPanel();
137 var emptyborder = new EmptyBorder();
138 emptyborder.left =5;
139 emptyborder.right =5;
140 emptyborder.top =5;
141 emptyborder.bottom =5;
142 borderpanel.border = emptyborder;
143 
144 //top
145 var gridpanel = new GridPanel();
146 var compoundborder = new CompoundBorder();
147 compoundborder.borders= [
148                             TitledBorder { title: "Context"}, 
149                             EmptyBorder {
150                                 top: 5
151                                 left: 5
152                                 bottom: 5
153                                 right: 5
154                             }
155 ];
156 gridpanel.border=compoundborder;
157 gridpanel.rows =1;
158 gridpanel.columns =1;
159 controlMSG.rows=21;
160 controlMSG.editable = false;
161 controlMSG.focusTraversalKeysEnabled = false;
162 gridpanel.cells = controlMSG;
163 borderpanel.top =gridpanel;
164 
165 //bottom
166 var gridbagpanel = new GridBagPanel();
167 var compoundborder2 = new CompoundBorder();
168 compoundborder2.borders= [
169                             TitledBorder {title: "Talk"},
170                             EmptyBorder {
171                                 top: 0
172                                 left: 5
173                                 bottom: 5
174                                 right: 5
175                             }
176 ];
177 gridbagpanel.border=compoundborder2;
178 var gridcell = new GridCell();
179 gridcell.anchor = EAST;
180 gridcell.gridx= 0;
181 gridcell.gridy= 0;
182 var simplelabel = new SimpleLabel();
183 simplelabel.text= "Input msg: ";
184 gridcell.content = simplelabel;
185 var gridcell2 = new GridCell();
186 gridcell2.anchor= WEST;
187 gridcell2.fill= HORIZONTAL;
188 gridcell2.weightx= 1;
189 gridcell2.gridx= 1;
190 gridcell2.gridy= 0;
191 controlPASSTEXT.onKeyTyped= operation(e:KeyEvent){
192     if(e.keyChar == "\n" and controlPASSTEXT.value.trim() <> ""){
193         objClientFX.PASSTEXT = controlPASSTEXT.value;
194         controlPASSTEXT.value = "";
195         objClientFX.send(objClientFX,controlMSG);
196     }
197 };
198 gridcell2.content = controlPASSTEXT;
199 gridbagpanel.cells = [gridcell,gridcell2];
200 borderpanel.bottom =gridbagpanel;
201 mainFrame.content = borderpanel;
202 mainFrame.visible = true;
203 

posted on 2008-07-18 12:23 Atea 阅读(1071) 评论(0)  编辑  收藏 所属分类: Java language

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