Spring boot使用WebSocket是无法通过@Autowired注入bean问题解决
package ;
import ;
import ;
import ;
import org.;
import org.;
import ;
import .Component;
import .*;
import .ServerEndpoint;
import ;
import ;
/**
* @PACKAGE_NAME:
* @ClassName: MessageController
* @ServerEndpoint(value = "/websocket", encoders = {},configurator = )
* @Description:消息
* @author: peiqiankun
* @date: 2018-03-12 11:22
* @mail: peiqiankun@
* @version: v1.0
*/
@ServerEndpoint(value = "/websocket", encoders = {ServerEncoder.class})
@Component
public class MessageController {
private final static Logger logger = LoggerFactory.getLogger(MessageController.class);
//静态变量，用来记录当前在线连接数。应该把它设计成线程安全的。
private static int onlineCount = 0;
//concurrent包的线程安全Set，用来存放每个客户端对应的MyWebSocket对象。
private static CopyOnWriteArraySet<MessageController> webSocketSet = new CopyOnWriteArraySet<MessageController>();
//与某个客户端的连接会话，需要通过它来给客户端发送数据
private Session session;
//此处是解决无法注入的关键
private static ApplicationContext applicationContext;
//你要注入的service或者dao
private CDSocketMessageService cdSocketMessageService;
public static void setApplicationContext(ApplicationContext applicationContext) {
MessageController.applicationContext = applicationContext;
}
/**
* @Description:连接建立成功调用的方法
* @author: peiqiankun
* @date: 2018/5/1 9:23
* @mail: peiqiankun@
*/
@OnOpen
public void onOpen(Session session) {
this.session = session;
webSocketSet.add(this); //加入set中
addOnlineCount(); //在线数加1
logger.info("有新连接加入！当前在线人数为-->{}", getOnlineCount());
try {
//此处是解决无法注入的关键
cdSocketMessageService = applicationContext.getBean(CDSocketMessageService.class);
CDSocketMessage cdSocketMessage = cdSocketMessageService.getPrompt();
sendMessage(cdSocketMessage);
} catch (Exception e) {
logger.error("IO异常-->{}", e);
}
}
/**
* @Description:连接关闭调用的方法
* @author: peiqiankun
* @date: 2018/5/1 9:23
* @mail: peiqiankun@
*/
@OnClose
public void onClose() {
webSocketSet.remove(this); //从set中删除
subOnlineCount(); //在线数减1
logger.info("有一连接关闭！当前在线人数为-->{}", getOnlineCount());
}
/**
* 收到客户端消息后调用的方法
*
* @param message
* @param session
*/
@OnMessage
public void onMessage(String message, Session session) {
logger.info("来自客户端的消息-->{}", message);
CDSocketMessage cdSocketMessage = new CDSocketMessage();
(message);
//群发消息
for (MessageController item : webSocketSet) {
try {
(cdSocketMessage);
} catch (IOException e) {
();
}
}
}
/**
* @Description:发生错误
* @author: peiqiankun
* @date: 2018/5/1 9:23
* @mail: peiqiankun@
*/
@OnError
public void onError(Session session, Throwable error) {
logger.error("发生错误-->{}", ());
}
public void sendMessage(CDSocketMessage message) throws IOException {
try {
this.session.getBasicRemote().sendObject(message);
} catch (Exception e) {
logger.error("发送消息异常-->", e);
}
}
/**
* @Description:群发自定义消息
* @author: peiqiankun
* @date: 2018/5/1 9:24
* @mail: peiqiankun@
*/
public static void sendInfo(CDSocketMessage message) throws IOException {
for (MessageController item : webSocketSet) {
try {
(message);
} catch (IOException e) {
continue;
}
}
}
public static synchronized int getOnlineCount() {
return onlineCount;
}
public static synchronized void addOnlineCount() {
MessageController.onlineCount++;
}
public static synchronized void subOnlineCount() {
MessageController.onlineCount--;
}
}