springboot实现连续对话,并将对话内容保存到mysql中

可以使用SpringBoot中的WebSocket实现连续对话，并使用Spring Data JPA将对话内容保存到MySQL数据库中。

首先，需要在SpringBoot中添加WebSocket的依赖：

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

然后，在SpringBoot中创建一个WebSocket配置类，配置WebSocket的相关参数和处理器：

@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {
 
    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        registry.addHandler(chatHandler(), "/chat").setAllowedOrigins("*");
    }
 
    @Bean
    public WebSocketHandler chatHandler() {
        return new ChatHandler();
    }
}

创建一个WebSocket处理器ChatHandler，用于处理WebSocket连接和消息：

public class ChatHandler extends TextWebSocketHandler {
 
    @Autowired
    private ChatService chatService;
 
    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        // 新建一个对话
        Chat chat = new Chat();
        chat.setStartTime(new Date());
        chatService.saveChat(chat);
        session.getAttributes().put("chatId", chat.getId());
    }
 
    @Override
    public void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
        // 获取当前对话
        Long chatId = (Long) session.getAttributes().get("chatId");
        Chat chat = chatService.getChatById(chatId);
 
        // 处理消息
        String content = message.getPayload();
        chat.addMessage(content);
        chatService.saveChat(chat);
 
        // 发送消息给所有连接的客户端
        for (WebSocketSession client : chat.getClients()) {
            if (client.isOpen()) {
                client.sendMessage(message);
            }
        }
    }
 
    @Override
    public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
        // 获取当前对话
        Long chatId = (Long) session.getAttributes().get("chatId");
        Chat chat = chatService.getChatById(chatId);
 
        // 更新对话结束时间
        chat.setEndTime(new Date());
        chatService.saveChat(chat);
 
        // 移除客户端
        chat.removeClient(session);
    }
}

创建一个Chat实体类，用于存储对话信息和消息：

@Entity
public class Chat {
 
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
 
    private Date startTime;
 
    private Date endTime;
 
    @OneToMany(mappedBy = "chat", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
    private List<Message> messages = new ArrayList<>();
 
    @Transient
    private List<WebSocketSession> clients = new ArrayList<>();
 
    // ...
}

创建一个Message实体类，用于存储消息内容和时间：

@Entity
public class Message {
 
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
 
    private String content;
 
    private Date time;
 
    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "chat_id")
    private Chat chat;
 
    // ...
}

创建一个ChatService，用于操作Chat和Message实体类，实现对话和消息的保存和查询：

@Service
public class ChatService {
 
    @Autowired
    private ChatRepository chatRepository;
 
    public Chat saveChat(Chat chat) {
        return chatRepository.save(chat);
    }
 
    public Chat getChatById(Long id) {
        return chatRepository.findById(id).orElse(null);
    }
 
    public Message saveMessage(Message message) {
        return messageRepository.save(message);
    }
 
    public List<Message> getMessagesByChatId(Long chatId) {
        return messageRepository.findByChatId(chatId);
    }
}

最后，在前端页面中使用JavaScript连接WebSocket，并发送消息到服务器：

var socket = new WebSocket("ws://localhost:8080/chat");
 
socket.onopen = function(event) {
    console.log("WebSocket连接已建立");
};
 
socket.onmessage = function(event) {
    console.log("收到消息：" + event.data);
};
 
socket.onclose = function(event) {
    console.log("WebSocket连接已关闭");
};
 
function sendMessage() {
    var message = document.getElementById("message").value;
    socket.send(message);
}

以上就是使用SpringBoot实现连续对话，并将对话内容保存到MySQL中的方法。