vue订阅rocketmq
时间: 2023-11-23 09:58:01 浏览: 306
根据提供的引用内容,我们可以看出这是Java端使用RocketMQ进行消息传递,而Vue作为前端框架,需要通过WebSocket与Java端进行长连接,从而实现消息的订阅和消费。具体步骤如下:
1.在Vue项目中安装`stompjs`和`sockjs-client`依赖:
```shell
npm install stompjs sockjs-client --save
```
2.在Vue项目中创建一个WebSocket服务,用于与Java端进行长连接:
```javascript
import SockJS from 'sockjs-client'
import Stomp from 'stompjs'
let stompClient = null
export function connect() {
const socket = new SockJS('http://localhost:8080/ws')
stompClient = Stomp.over(socket)
stompClient.connect({}, frame => {
console.log('Connected: ' + frame)
stompClient.subscribe('/topic/messages', message => {
console.log('Received: ' + message.body)
// 在这里处理接收到的消息
})
}, error => {
console.log('Error: ' + error)
setTimeout(connect, 5000)
})
}
export function disconnect() {
if (stompClient !== null) {
stompClient.disconnect()
}
console.log('Disconnected')
}
```
3.在Vue项目中调用WebSocket服务的`connect()`方法,与Java端建立长连接:
```javascript
import { connect } from '@/api/websocket'
export default {
mounted() {
connect()
}
}
```
4.在Java端使用RocketMQ发送消息,并在WebSocket服务中处理接收到的消息:
```java
// 发送消息
@Autowired
private RocketMQTemplate rocketMQTemplate;
rocketMQTemplate.convertAndSend("test-topic", "Hello, RocketMQ!");
// 接收消息
@MessageMapping("/messages")
@SendTo("/topic/messages")
public String handleMessage(String message) {
return "Received: " + message;
}
```
阅读全文