这篇文章主要介绍SpringBoot+netty-socketio如何实现服务器端消息推送，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！
首先：因为工作需要，需要对接socket.io框架对接，所以目前只能使用netty-socketio。websocket是不支持对接socket.io框架的。
netty-socketio顾名思义他是一个底层基于netty'实现的socket。
在springboot项目中的集成，请看下面的代码
maven依赖
<dependency> <groupId>com.corundumstudio.socketio</groupId> <artifactId>netty-socketio</artifactId> <version>1.7.11</version></dependency> 下面就是代码了
首先是配置参数
#socketio配置socketio: host: localhost port: 9099 # 设置最大每帧处理数据的长度，防止他人利用大数据来攻击服务器 maxFramePayloadLength: 1048576 # 设置http交互最大内容长度 maxHttpContentLength: 1048576 # socket连接数大小（如只监听一个端口boss线程组为1即可） bossCount: 1 workCount: 100 allowCustomRequests: true # 协议升级超时时间（毫秒），默认10秒。HTTP握手升级为ws协议超时时间 upgradeTimeout: 1000000 # Ping消息超时时间（毫秒），默认60秒，这个时间间隔内没有接收到心跳消息就会发送超时事件 pingTimeout: 6000000 # Ping消息间隔（毫秒），默认25秒。客户端向服务器发送一条心跳消息间隔 pingInterval: 25000上面的注释写的很清楚。下面是config代码
import com.corundumstudio.socketio.Configuration;import com.corundumstudio.socketio.SocketConfig;import com.corundumstudio.socketio.SocketIOServer;import org.springframework.beans.factory.InitializingBean;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Value;import org.springframework.stereotype.Component;import javax.annotation.Resource;@Componentpublic class PushServer implements InitializingBean { @Autowired private EventListenner eventListenner; @Value("${socketio.port}") private int serverPort; @Value("${socketio.host}") private String serverHost; @Value("${socketio.bossCount}") private int bossCount; @Value("${socketio.workCount}") private int workCount; @Value("${socketio.allowCustomRequests}") private boolean allowCustomRequests; @Value("${socketio.upgradeTimeout}") private int upgradeTimeout; @Value("${socketio.pingTimeout}") private int pingTimeout; @Value("${socketio.pingInterval}") private int pingInterval; @Override public void afterPropertiesSet() throws Exception { Configuration config = new Configuration(); config.setPort(serverPort); config.setHostname(serverHost); config.setBossThreads(bossCount); config.setWorkerThreads(workCount); config.setAllowCustomRequests(allowCustomRequests); config.setUpgradeTimeout(upgradeTimeout); config.setPingTimeout(pingTimeout); config.setPingInterval(pingInterval); SocketConfig socketConfig = new SocketConfig(); socketConfig.setReuseAddress(true); socketConfig.setTcpNoDelay(true); socketConfig.setSoLinger(0); config.setSocketConfig(socketConfig); SocketIOServer server = new SocketIOServer(config); server.addListeners(eventListenner); server.start(); System.out.println("启动正常"); }}在就是监听代码
import com.corundumstudio.socketio.AckRequest;import com.corundumstudio.socketio.SocketIOClient;import com.corundumstudio.socketio.annotation.OnConnect;import com.corundumstudio.socketio.annotation.OnDisconnect;import com.corundumstudio.socketio.annotation.OnEvent;import org.apache.commons.lang3.StringUtils;import org.bangying.auth.JwtSupport;import org.springframework.stereotype.Component;import javax.annotation.Resource;import java.util.UUID;@Componentpublic class EventListenner { @Resource private ClientCache clientCache; @Resource private JwtSupport jwtSupport; @OnConnect public void onConnect(SocketIOClient client) { String userId = client.getHandshakeData().getSingleUrlParam("userId");// userId = jwtSupport.getApplicationUser().getId().toString();// userId = "8"; UUID sessionId = client.getSessionId(); clientCache.saveClient(userId, sessionId, client); System.out.println("建立连接"); } @OnDisconnect public void onDisconnect(SocketIOClient client) { String userId = client.getHandshakeData().getSingleUrlParam("userId"); if (StringUtils.isNotBlank(userId)) { clientCache.deleteSessionClient(userId, client.getSessionId()); System.out.println("关闭连接"); } } //消息接收入口，当接收到消息后，查找发送目标客户端，并且向该客户端发送消息，且给自己发送消息 // 暂未使用 @OnEvent("messageevent") public void onEvent(SocketIOClient client, AckRequest request) { }}本地缓存信息
import com.corundumstudio.socketio.SocketIOClient;import org.apache.commons.lang3.StringUtils;import org.springframework.stereotype.Component;import java.util.HashMap;import java.util.Map;import java.util.UUID;import java.util.concurrent.ConcurrentHashMap;@Componentpublic class ClientCache { //本地缓存 private static Map<String, HashMap<UUID, SocketIOClient>> concurrentHashMap=new ConcurrentHashMap<>(); public void saveClient(String userId, UUID sessionId,SocketIOClient socketIOClient){ if(StringUtils.isNotBlank(userId)){ HashMap<UUID, SocketIOClient> sessionIdClientCache=concurrentHashMap.get(userId); if(sessionIdClientCache==null){ sessionIdClientCache = new HashMap<>(); } sessionIdClientCache.put(sessionId,socketIOClient); concurrentHashMap.put(userId,sessionIdClientCache); } } public HashMap<UUID, SocketIOClient> getUserClient(String userId){ return concurrentHashMap.get(userId); } public void deleteSessionClient(String userId,UUID sessionId){ concurrentHashMap.get(userId).remove(sessionId); }}下面是存储客户端连接信息
import com.corundumstudio.socketio.SocketIOClient;import org.apache.commons.lang3.StringUtils;import org.springframework.stereotype.Component;import java.util.HashMap;import java.util.Map;import java.util.UUID;import java.util.concurrent.ConcurrentHashMap;@Componentpublic class ClientCache { //本地缓存 private static Map<String, HashMap<UUID, SocketIOClient>> concurrentHashMap=new ConcurrentHashMap<>(); public void saveClient(String userId, UUID sessionId,SocketIOClient socketIOClient){ if(StringUtils.isNotBlank(userId)){ HashMap<UUID, SocketIOClient> sessionIdClientCache=concurrentHashMap.get(userId); if(sessionIdClientCache==null){ sessionIdClientCache = new HashMap<>(); } sessionIdClientCache.put(sessionId,socketIOClient); concurrentHashMap.put(userId,sessionIdClientCache); } } public HashMap<UUID, SocketIOClient> getUserClient(String userId){ return concurrentHashMap.get(userId); } public void deleteSessionClient(String userId,UUID sessionId){ concurrentHashMap.get(userId).remove(sessionId); }}控制层推送方法
@RestController@RequestMapping("/push")public class PushController { @Resource private ClientCache clientCache; @Autowired private JwtSupport jwtSupport; @GetMapping("/message") public String pushTuUser(@Param("id") String id){ Integer userId = jwtSupport.getApplicationUser().getId(); HashMap<UUID, SocketIOClient> userClient = clientCache.getUserClient(String.valueOf(userId)); userClient.forEach((uuid, socketIOClient) -> { //向客户端推送消息 socketIOClient.sendEvent("chatevent","服务端推送消息"); }); return "success"; }}以上是“SpringBoot+netty-socketio如何实现服务器端消息推送”这篇文章的所有内容，感谢各位的阅读！希望分享的内容对大家有帮助，更多相关知识，欢迎关注编程网行业资讯频道！
