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| | |
| | | package com.mes.tools; |
| | | |
| | | import java.util.ArrayList; |
| | | import java.util.List; |
| | | import java.util.Map; |
| | | import java.util.concurrent.ConcurrentHashMap; |
| | | |
| | | import org.slf4j.Logger; |
| | | import org.slf4j.LoggerFactory; |
| | | |
| | | import javax.websocket.OnClose; |
| | | import javax.websocket.OnError; |
| | | import javax.websocket.OnMessage; |
| | | import javax.websocket.OnOpen; |
| | | import javax.websocket.Session; |
| | | import javax.websocket.server.PathParam; |
| | | import javax.websocket.server.ServerEndpoint; |
| | | |
| | | import org.springframework.context.ConfigurableApplicationContext; |
| | | import org.springframework.stereotype.Component; |
| | | |
| | | import cn.hutool.json.JSONObject; |
| | | import cn.hutool.json.JSONUtil; |
| | | |
| | | @ServerEndpoint(value = "/api/talk/{username}") |
| | | @Component |
| | | public class WebSocketServer { |
| | | |
| | | // @Autowired |
| | | // HomeMapper homeMapper; |
| | | |
| | | static ConfigurableApplicationContext applicationContext; |
| | | |
| | | // 解决无法注入mapper问题 //使用方法 |
| | | // homeMapper=WebSocketServer.applicationContext.getBean(HomeMapper.class); |
| | | public static void setApplicationContext(ConfigurableApplicationContext configurableApplicationContext) { |
| | | WebSocketServer.applicationContext = configurableApplicationContext; |
| | | } |
| | | |
| | | private static final Logger log = LoggerFactory.getLogger(WebSocketServer.class); |
| | | private List<String> messages; |
| | | /** |
| | | * 记录当前在线连接数 |
| | | */ |
| | | public static final Map<String, ArrayList<WebSocketServer>> sessionMap = new ConcurrentHashMap<>(); |
| | | |
| | | String username; |
| | | public Session session; |
| | | |
| | | public WebSocketServer() { |
| | | this.messages = new ArrayList<>(); |
| | | } |
| | | |
| | | /** |
| | | * 连接建立成功调用的方法 |
| | | */ |
| | | @OnOpen |
| | | public void onOpen(Session session, @PathParam("username") String username) { |
| | | this.username = username; |
| | | this.session = session; |
| | | List<WebSocketServer> webSocketServers = sessionMap.get(username); |
| | | if (webSocketServers == null) { |
| | | ArrayList<WebSocketServer> arrayListwebserver = new ArrayList<WebSocketServer>(); |
| | | arrayListwebserver.add(this); |
| | | sessionMap.put(username, arrayListwebserver); |
| | | } else { |
| | | webSocketServers.add(this); |
| | | // Short i=0; |
| | | // for (WebSocketServer webSocketServer : webSocketServers) { |
| | | // if(webSocketServer==this){ |
| | | // i++; |
| | | // } |
| | | // } |
| | | // if(i==0){ |
| | | // webSocketServers.add(this); |
| | | // } |
| | | } |
| | | |
| | | log.info("有新用户加入,username={}, 当前在线人数为:{}", username, sessionMap.get(username).size()); |
| | | |
| | | // JSONObject result = new JSONObject(); |
| | | // JSONArray array = new JSONArray(); |
| | | // result.set("users", array); |
| | | // for (Object key : sessionMap.keySet()) { |
| | | // JSONObject jsonObject = new JSONObject(); |
| | | // jsonObject.set("username", key); |
| | | // array.add(jsonObject); |
| | | // } |
| | | |
| | | // sendAllMessage(JSONUtil.toJsonStr(result)); // 后台发送消息给所有的客户端 |
| | | } |
| | | |
| | | /** |
| | | * 连接关闭调用的方法 |
| | | */ |
| | | @OnClose |
| | | public void onClose(Session session, @PathParam("username") String username) { |
| | | List<WebSocketServer> webSocketServers = sessionMap.get(username); |
| | | ArrayList<WebSocketServer> arrayListwebserver = new ArrayList<WebSocketServer>(); |
| | | if (webSocketServers.size()>1) { |
| | | for (WebSocketServer webSocketServer : webSocketServers) { |
| | | if(webSocketServer!=this){ |
| | | arrayListwebserver.add(webSocketServer); |
| | | } |
| | | } |
| | | sessionMap.put(username, arrayListwebserver); |
| | | log.info("移除username={}一名用户session, {}的当前在线人数为:{}", username, username, sessionMap.get(username).size()); |
| | | }else{ |
| | | sessionMap.remove(username); |
| | | log.info("移除username={}一名用户session, {}连接关闭, 当前连接数为:{}", username, username, sessionMap.size()); |
| | | } |
| | | |
| | | } |
| | | |
| | | /** |
| | | * 收到客户端消息后调用的方法 |
| | | * 后台收到客户端发送过来的消息 |
| | | * onMessage 是一个消息的中转站 |
| | | * 接受 浏览器端 socket.send 发送过来的 json数据 |
| | | * |
| | | * @param message 客户端发送过来的消息 |
| | | */ |
| | | @OnMessage |
| | | public void onMessage(String message, Session session, @PathParam("username") String username) { |
| | | log.info("服务端收到用户username={}的消息:{}", username, message); |
| | | JSONObject obj = JSONUtil.parseObj(message); |
| | | String text = obj.getStr("data"); |
| | | |
| | | JSONObject jsonObject = new JSONObject(); |
| | | jsonObject.set("message", text); |
| | | this.messages.add(text); |
| | | this.sendMessage(jsonObject.toString()); // JSONUtil.toJsonStr(jsonObject) |
| | | |
| | | } |
| | | |
| | | @OnError |
| | | public void onError(Session session, Throwable error) { |
| | | log.error("发生错误"); |
| | | error.printStackTrace(); |
| | | } |
| | | |
| | | /** |
| | | * 服务端发送消息给客户端 |
| | | */ |
| | | public void sendMessage(String message) { |
| | | try { |
| | | // log.info("服务端给客户端[{}]发送消息{}", this.session.getId(), message); |
| | | this.session.getBasicRemote().sendText(message); |
| | | } catch (Exception e) { |
| | | log.error("服务端发送消息给客户端失败", e); |
| | | } |
| | | } |
| | | |
| | | // /** |
| | | // * 服务端发送消息给所有客户端 |
| | | // */ |
| | | // public void sendAllMessage(String message) { |
| | | // try { |
| | | // for (WebSocketServer webSocketServer : sessionMap.values()) { |
| | | // // log.info("服务端给客户端[{}]发送消息{}", this.session.getId(), message); |
| | | // webSocketServer.sendMessage(message); |
| | | // } |
| | | // } catch (Exception e) { |
| | | // log.error("服务端发送消息给客户端失败", e); |
| | | // } |
| | | // } |
| | | |
| | | public List<String> getMessages() { |
| | | return messages; |
| | | |
| | | } |
| | | |
| | | public void clearMessages() { |
| | | messages.clear(); |
| | | } |
| | | } |