【Springboot系列】SpringBoot整合WebSocket，既然如此简单(含源码)

以下是一个使用Spring Boot整合WebSocket的简单示例。

首先，添加依赖到你的pom.xml文件：




<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-websocket</artifactId>
</dependency>

然后，配置WebSocket：




import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.simp.config.MessageBrokerRegistry;
import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;
 
@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
 
    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/ws").withSockJS();
    }
 
    @Override
    public void configureMessageBroker(MessageBrokerRegistry registry) {
        registry.enableSimpleBroker("/topic");
        registry.setApplicationDestinationPrefixes("/app");
    }
}

接下来，创建一个控制器来处理WebSocket消息：




import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.messaging.handler.annotation.MessageMapping;
import org.springframework.messaging.handler.annotation.SendTo;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
 
@Controller
public class WebSocketController {
 
    @Autowired
    private SimpMessagingTemplate simpMessagingTemplate;
 
    @MessageMapping("/hello")
    @SendTo("/topic/greetings")
    public String greeting(String message) {
        return "Hello, " + message + "!";
    }
 
    @RequestMapping("/sendMessage")
    @ResponseBody
    public String sendMessage(String message) {
        simpMessagingTemplate.convertAndSend("/topic/greetings", "Hello, " + message + "!");
        return "Message sent";
    }
}

最后，在HTML页面中使用WebSocket：




<!DOCTYPE html>
<html>
<head>
    <title>WebSocket Test</title>
    <script src="https://cdn.jsdelivr.net/npm/sockjs-client@1.7.0/dist/sockjs.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/s

【Springboot系列】SpringBoot整合WebSocket，既然如此简单(含源码)

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