ChatServer.java
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package com.fh.plugin.websocketInstantMsg;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import net.sf.json.JSONObject;
import org.java_websocket.WebSocket;
import org.java_websocket.WebSocketImpl;
import org.java_websocket.framing.Framedata;
import org.java_websocket.handshake.ClientHandshake;
import org.java_websocket.server.WebSocketServer;
public class ChatServer extends WebSocketServer{
private List<WebSocket> list = new ArrayList<WebSocket>();
public ChatServer(int port) throws UnknownHostException {
super(new InetSocketAddress(port));
}
public ChatServer(InetSocketAddress address) {
super(address);
}
/**
* 触发连接事件
*/
@Override
public void onOpen( WebSocket conn, ClientHandshake handshake ) {
//this.sendToAll( "new connection: " + handshake.getResourceDescriptor() );
//System.out.println("===" + conn.getRemoteSocketAddress().getAddress().getHostAddress());
list.add(conn);
}
/**
* 触发关闭事件
*/
@Override
public void onClose( WebSocket conn, int code, String reason, boolean remote ) {
list.remove(conn);
}
/**
* 客户端发送消息到服务器时触发事件
*/
@Override
public void onMessage(WebSocket conn, String message){
for(WebSocket w:list){
if(w != conn){
w.send(message);
}
}
}
public void onFragment( WebSocket conn, Framedata fragment ) {
}
/**
* 触发异常事件
*/
@Override
public void onError( WebSocket conn, Exception ex ) {
try{
conn.close(0);
}catch(Exception e){}
list.remove(conn);
}
/**
* 用户加入处理
* @param user
*/
public void userjoin(String user, WebSocket conn){
JSONObject result = new JSONObject();
result.element("type", "user_join");
result.element("user", "<a onclick=\"toUserMsg('"+user+"');\">"+user+"</a>");
ChatServerPool.sendMessage(result.toString()); //把当前用户加入到所有在线用户列表中
String joinMsg = "{\"from\":\"[系统]\",\"content\":\""+user+"上线了\",\"timestamp\":"+new Date().getTime()+",\"type\":\"message\"}";
ChatServerPool.sendMessage(joinMsg); //向所有在线用户推送当前用户上线的消息
result = new JSONObject();
result.element("type", "get_online_user");
ChatServerPool.addUser(user,conn); //向连接池添加当前的连接对象
result.element("list", ChatServerPool.getOnlineUser());
ChatServerPool.sendMessageToUser(conn, result.toString()); //向当前连接发送当前在线用户的列表
}
/**
* 用户下线处理
* @param user
*/
public void userLeave(WebSocket conn){
// String user = ChatServerPool.getUserByKey(conn);
boolean b = ChatServerPool.removeUser(conn); //在连接池中移除连接
// if(b){
// JSONObject result = new JSONObject();
// result.element("type", "user_leave");
// result.element("user", "<a onclick=\"toUserMsg('"+user+"');\">"+user+"</a>");
// ChatServerPool.sendMessage(result.toString()); //把当前用户从所有在线用户列表中删除
// String joinMsg = "{\"from\":\"[系统]\",\"content\":\""+user+"下线了\",\"timestamp\":"+new Date().getTime()+",\"type\":\"message\"}";
// ChatServerPool.sendMessage(joinMsg); //向在线用户发送当前用户退出的消息
// }
}
public static void main( String[] args ) throws InterruptedException , IOException {
WebSocketImpl.DEBUG = false;
int port = 8887; //端口
ChatServer s = new ChatServer(port);
s.start();
//System.out.println( "服务器的端口" + s.getPort() );
}
}