在现代 web 应用中,语音通话功能已经成为一个重要的交互方式。通过使用 WebSocket,我们可以建立实时的双向通信,适用于语音通话的实现。下面将介绍如何在 Spring Boot 与 Vue.js 中使用 WebSocket 实现语音通话功能。

一、构建后端(Spring Boot)

首先,我们需要在 Spring Boot 中设置 WebSocket。首先,添加相关依赖:

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

然后,创建 WebSocket 配置类:

import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.simp.config.MessageBrokerRegistry;
import org.springframework.web.socket.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 configureMessageBroker(MessageBrokerRegistry config) {
        config.enableSimpleBroker("/topic");
        config.setApplicationDestinationPrefixes("/app");
    }

    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/ws").withSockJS();
    }
}

接下来,创建一个控制器来处理语音数据:

import org.springframework.messaging.handler.annotation.MessageMapping;
import org.springframework.messaging.simp.SimpMessagingTemplate;
import org.springframework.stereotype.Controller;

@Controller
public class VoiceController {

    private final SimpMessagingTemplate messagingTemplate;

    public VoiceController(SimpMessagingTemplate messagingTemplate) {
        this.messagingTemplate = messagingTemplate;
    }

    @MessageMapping("/voice")
    public void sendVoiceMessage(String voiceData) {
        messagingTemplate.convertAndSend("/topic/voice", voiceData);
    }
}

二、构建前端(Vue.js)

在 Vue.js 中,我们需要使用 sockjs-clientstompjs 来连接 WebSocket:

npm install sockjs-client stompjs

接下来,创建一个 Vue 组件来实现语音通话功能:

<template>
  <div>
    <button @click="startCall">开始通话</button>
    <button @click="stopCall">结束通话</button>
    <audio ref="audio" controls></audio>
  </div>
</template>

<script>
import SockJS from 'sockjs-client';
import Stomp from 'stompjs';

export default {
  data() {
    return {
      stompClient: null,
      audioContext: new (window.AudioContext || window.webkitAudioContext)(),
    };
  },
  methods: {
    connect() {
      const socket = new SockJS('http://localhost:8080/ws');
      this.stompClient = Stomp.over(socket);

      this.stompClient.connect({}, frame => {
        console.log('Connected: ' + frame);
        this.stompClient.subscribe('/topic/voice', message => {
          this.playVoice(message.body);
        });
      });
    },
    startCall() {
      this.connect();
      // 启动录音逻辑
      navigator.mediaDevices.getUserMedia({ audio: true })
        .then(stream => {
          const mediaRecorder = new MediaRecorder(stream);
          mediaRecorder.ondataavailable = event => {
            this.sendVoice(event.data);
          };
          mediaRecorder.start(1000); // 每隔1秒处理一次音频数据
        });
    },
    stopCall() {
      // 停止录音逻辑
      if (this.stompClient) {
        this.stompClient.disconnect();
      }
    },
    sendVoice(blob) {
      const reader = new FileReader();
      reader.onloadend = () => {
        this.stompClient.send("/app/voice", {}, reader.result);
      };
      reader.readAsArrayBuffer(blob);
    },
    playVoice(arrayBuffer) {
      this.audioContext.decodeAudioData(arrayBuffer, (buffer) => {
        const source = this.audioContext.createBufferSource();
        source.buffer = buffer;
        source.connect(this.audioContext.destination);
        source.start(0);
      });
    }
  }
};
</script>

三、总结

通过上述代码,我们已经实现了一个简单的语音通话功能。后端使用 Spring Boot 提供 WebSocket 服务,前端使用 Vue.js 连接 WebSocket 并处理音频数据。实际应用中,我们可能还需要处理更复杂的场景,例如用户认证、音频的压缩/解压缩等。这只是一个基础示例,您可以在此基础上进行扩展和优化。

点赞(0) 打赏

微信小程序

微信扫一扫体验

微信公众账号

微信扫一扫加关注

发表
评论
返回
顶部