Java中SpringBoot+Socket实现与html页⾯的长连接实例详解Spring Boot+Socket实现与html页⾯的长连接，客户端给服务器端发消息，服务器给客户端轮询发送消息，附案例源码
功能介绍
客户端给所有在线⽤户发送消息客户端给指定在线⽤户发送消息服务器给客户端发送消息(轮询⽅式)
注意：socket只是实现⼀些简单的功能，具体的还需根据⾃⾝情况，代码稍微改造下
项⽬搭建
项⽬结构图
美白祛斑产品排行<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="/POM/4.0.0" xmlns:xsi="/2001/XMLSchema-instance"
xsi:schemaLocation="/POM/4.0.0 /xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId&b</groupId>
<artifactId>socket_test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>socket_test</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!-- springboot websocket -->
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<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<!--guava依赖-->优秀员工获奖感言简短
<dependency>
<groupId&le.guava</groupId>
<artifactId>guava</artifactId>
<version>18.0</version>
</dependency>
<!--fastjson依赖-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.46</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
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<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
化学工程与工艺专业就业前景<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
appliccation.properties
SocketTestApplication.java(Spring Boot启动类)
WebSocketStompConfig.java
b.socket.websocket;
import t.annotation.Bean;
import t.annotation.Configuration;
import org.springframework.web.socket.server.standard.ServerEndpointExporter;
@Configuration
public class WebSocketStompConfig {
//这个bean的注册,⽤于扫描带有@ServerEndpoint的注解成为websocket ，如果你使⽤外置的tomcat就不需要该配置⽂件 @Bean
public ServerEndpointExporter serverEndpointExporter()
{
return new ServerEndpointExporter();
}
}
WebSocket.java(Socket核⼼类)
b.socket.websocket;
import java.io.IOException;
import java.util.Map;
import java.util.Set;
import urrent.ConcurrentHashMap;
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;
美白祛斑产品哪个好import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
llect.Maps;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
/
**
* @Author：陈彦斌
* @Description：Socket核⼼类
* @Date： 2020-07-26
*/
@Component
@ServerEndpoint(value = "/connectWebSocket/{userId}")
public class WebSocket {
private Logger logger = Class()); /**
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