RealControlSocketHandler.java
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package com.bsth.websocket.handler;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import org.springframework.web.socket.CloseStatus;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketHandler;
import org.springframework.web.socket.WebSocketMessage;
import org.springframework.web.socket.WebSocketSession;
import com.alibaba.fastjson.JSONObject;
import com.bsth.data.BasicData;
import com.google.common.base.Splitter;
import com.google.common.collect.ArrayListMultimap;
/**
* @author PanZhao
*/
@Component
@Scope("prototype")
public class RealControlSocketHandler implements WebSocketHandler {
Logger logger = LoggerFactory.getLogger(this.getClass());
private static final ArrayList<WebSocketSession> users;
private static final ArrayListMultimap<String, WebSocketSession> listenMap;
static {
users = new ArrayList<WebSocketSession>();
listenMap = ArrayListMultimap.create();
}
@Override
public void afterConnectionClosed(WebSocketSession session, CloseStatus arg1)
throws Exception {
users.remove(session);
//清理监听
Set<String> keys = listenMap.keySet();
Map<String, WebSocketSession> remMap = new HashMap<>();
for(String k : keys){
if(listenMap.get(k).contains(session))
remMap.put(k, session);
}
Set<String> remSet = remMap.keySet();
for(String k : remSet){
listenMap.remove(k, remMap.get(k));
logger.info("web socket close, remove listen K: "+ k);
}
logger.info("listen values size: " + listenMap.values().size());
}
@Override
public void afterConnectionEstablished(WebSocketSession session)
throws Exception {
users.add(session);
}
@Override
public void handleMessage(WebSocketSession session, WebSocketMessage<?> msg)
throws Exception {
JSONObject jsonObj = JSONObject.parseObject(msg.getPayload().toString());
switch (jsonObj.getString("operCode")) {
case "register_line":
//注册线路监听
List<String> idx = Splitter.on(",").splitToList(jsonObj.getString("idx"));
for(String lineCode : idx){
if(BasicData.lineCode2NameMap.containsKey(lineCode))
listenMap.put(lineCode, session);
}
break;
default:
break;
}
logger.info(msg.getPayload().toString());
}
@Override
public void handleTransportError(WebSocketSession session, Throwable arg1)
throws Exception {
if(session.isOpen()){
session.close();
}
users.remove(session);
}
@Override
public boolean supportsPartialMessages() {
return false;
}
/**
* 给所有在线用户发送消息
*
* @param message
public synchronized void sendMessageToUsers(TextMessage message) {
for (WebSocketSession user : users) {
try {
if (user.isOpen()) {
user.sendMessage(message);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}*/
/**
* 给某些用户发送消息
*
* @param userId
* @param message
public synchronized void sendMessageToUser(Set<String> uids, String msg) {
TextMessage message = new TextMessage(msg.getBytes());
for (WebSocketSession user : users) {
if (uids.contains(user.getAttributes().get(Constants.SESSION_USERNAME))) {
try {
if (user.isOpen()) {
user.sendMessage(message);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}*/
/**
* 根据线路推送消息
*/
public synchronized void sendMessageToLine(String lineCode, String msg) {
TextMessage message = new TextMessage(msg.getBytes());
Iterator<WebSocketSession> iterator = listenMap.get(lineCode).iterator();
WebSocketSession user;
while(iterator.hasNext()){
user = iterator.next();
try {
if (user.isOpen()) {
user.sendMessage(message);
}
} catch (Exception e) {
logger.error("sendMessageToLine error ...."+msg);
logger.error("sendMessageToLine error ....", e);
}
}
}
}