本文主要是介绍Spring Boot使用Netty SocketIO实现WebIM功能，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
本文转载自：Spring Boot使用Netty SocketIO实现WebIM功能
Netty SocketIO是一个 Java语言版本的Socket.IO服务器的实现，基于Netty框架开发，使用简单，功能强大。
在Spring Boot中包含了对Netty SocketIO的支持，只需要简单配置即可加入。
第一步：增加Netty SocketIO的依赖。
<dependency><groupId>com.corundumstudio.socketio</groupId><artifactId>netty-socketio</artifactId><version>1.7.11</version>
</dependency>第二步：在Application中增加启动项
package com.ukefu;import javax.servlet.MultipartConfigElement;import org.springframework.beans.factory.annotation.Value;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.EnableAutoConfiguration;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;import org.springframework.boot.context.embedded.ErrorPage;import org.springframework.boot.context.embedded.MultipartConfigFactory;import org.springframework.context.annotation.Bean;import org.springframework.data.jpa.repository.config.EnableJpaRepositories;import org.springframework.http.HttpStatus;import com.corundumstudio.socketio.AuthorizationListener;import com.corundumstudio.socketio.Configuration;import com.corundumstudio.socketio.HandshakeData;import com.corundumstudio.socketio.SocketConfig;import com.corundumstudio.socketio.SocketIOServer;import com.corundumstudio.socketio.annotation.SpringAnnotationScanner;import com.ukefu.core.UKDataContext;@EnableAutoConfiguration@SpringBootApplication@EnableJpaRepositories("com.ukefu.service.repository")public class Application {@Value("${uk.im.server.host}")private String host;@Value("${uk.im.server.port}")private Integer port;@Beanpublic SocketIOServer socketIOServer(){Configuration config = new Configuration();// config.setHostname("localhost");config.setPort(port);config.setSocketConfig(new SocketConfig());// config.setOrigin("http://im.ukewo.com");config.setWorkerThreads(100);// config.setStoreFactory(new HazelcastStoreFactory());config.setAuthorizationListener(new AuthorizationListener() {public boolean isAuthorized(HandshakeData data) {return true;}});SocketIOServer server = new SocketIOServer(config);server.addNamespace(UKDataContext.NameSpaceEnum.IM.toString()) ;server.addNamespace(UKDataContext.NameSpaceEnum.AGENT.toString()) ;return server;}@Beanpublic MultipartConfigElement multipartConfigElement() {MultipartConfigFactory factory = new MultipartConfigFactory();factory.setMaxFileSize("50MB"); //KB,MBfactory.setMaxRequestSize("100MB");return factory.createMultipartConfig();}@Beanpublic EmbeddedServletContainerCustomizer containerCustomizer() {return new EmbeddedServletContainerCustomizer() {@Overridepublic void customize(ConfigurableEmbeddedServletContainer container) {ErrorPage error = new ErrorPage("/error.html");container.addErrorPages(error);}};}@Beanpublic SpringAnnotationScanner springAnnotationScanner(SocketIOServer socketServer) {return new SpringAnnotationScanner(socketServer);}public static void main(String[] args) {UKDataContext.setApplicationContext(SpringApplication.run(Application.class, args));}}第三步：配置Netty Server相关代码
package com.ukefu.util.server;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.CommandLineRunner;import org.springframework.stereotype.Component;import com.corundumstudio.socketio.SocketIOServer;import com.ukefu.core.UKDataContext;import com.ukefu.util.server.handler.AgentEventHandler;import com.ukefu.util.server.handler.IMEventHandler;@Componentpublic class ServerRunner implements CommandLineRunner {private final SocketIOServer server;private IMEventHandler imEventHandler ;private AgentEventHandler agentEventHandler ;@Autowiredpublic ServerRunner(SocketIOServer server , IMEventHandler imEventHandler , AgentEventHandler agentEventHandler) {this.server = server;this.imEventHandler = imEventHandler ;this.agentEventHandler = agentEventHandler ;}public void run(String... args) throws Exception {server.getNamespace(UKDataContext.NameSpaceEnum.IM.toString()).addListeners(imEventHandler);server.getNamespace(UKDataContext.NameSpaceEnum.AGENT.toString()).addListeners(agentEventHandler);server.start();}}第四步：配置消息处理的代码
package com.ukefu.util.server.handler;import java.net.InetSocketAddress;import org.apache.commons.lang.StringUtils;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Component;import com.corundumstudio.socketio.AckRequest;import com.corundumstudio.socketio.SocketIOClient;import com.corundumstudio.socketio.SocketIOServer;import com.corundumstudio.socketio.annotation.OnConnect;import com.corundumstudio.socketio.annotation.OnDisconnect;import com.corundumstudio.socketio.annotation.OnEvent;import com.ukefu.util.server.message.AgentStatusMessage;import com.ukefu.util.server.message.ChatMessage;import com.ukefu.util.server.message.NewRequestMessage;@Componentpublic class IMEventHandler extends EventHandler{@Autowiredpublic IMEventHandler(SocketIOServer server){super(server) ;}@OnConnectpublic void onConnect(SocketIOClient client){System.out.println(client.getSessionId());}//添加@OnDisconnect事件，客户端断开连接时调用，刷新客户端信息@OnDisconnectpublic void onDisconnect(SocketIOClient client){System.out.println(client.getSessionId());}//消息接收入口，网站有新用户接入对话@OnEvent(value = "new")public void onEvent(SocketIOClient client, AckRequest request, NewRequestMessage data){try {String user = client.getHandshakeData().getSingleUrlParam("userid") ;String orgi = client.getHandshakeData().getSingleUrlParam("orgi") ;String session = client.getHandshakeData().getSingleUrlParam("session") ;String appid = client.getHandshakeData().getSingleUrlParam("appid") ;if(!StringUtils.isBlank(session)){session = session.replaceAll("-", "") ;}if(!StringUtils.isBlank(user)){/*** 用户进入到对话连接 ， 排队用户请求 , 如果返回失败，表示当前坐席全忙，用户进入排队状态，当前提示信息 显示 当前排队的队列位置，不可进行对话，用户发送的消息作为留言处理*/InetSocketAddress address = (InetSocketAddress) client.getRemoteAddress() ;// NewRequestMessage newRequestMessage = OnlineUserUtils.newRequestMessage(user, orgi , session , appid , address.getHostString() , client.getHandshakeData().getSingleUrlParam("osname") , client.getHandshakeData().getSingleUrlParam("browser")) ;// /**// * 加入到 缓存列表// */// NettyClients.getInstance().putIMEventClient(user, client);//// if(newRequestMessage!=null && !StringUtils.isBlank(newRequestMessage.getMessage())){// MessageOutContent outMessage = new MessageOutContent() ;// outMessage.setMessage(newRequestMessage.getMessage());// outMessage.setMessageType(UKDataContext.MessageTypeEnum.MESSAGE.toString());// outMessage.setCalltype(UKDataContext.CallTypeEnum.IN.toString());//// client.sendEvent(UKDataContext.MessageTypeEnum.STATUS.toString(), outMessage);// }}} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}}//消息接收入口，坐席状态更新@OnEvent(value = "agentstatus")public void onEvent(SocketIOClient client, AckRequest request, AgentStatusMessage data){System.out.println(data.getMessage());}//消息接收入口，收发消息，用户向坐席发送消息和 坐席向用户发送消息@OnEvent(value = "message")public void onEvent(SocketIOClient client, AckRequest request, ChatMessage data){System.out.println(data.getMessage());}}第五步：完成配置。
以上所有代码在优客服中找到。码云地址
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