js实现websocket类,带心跳检测和断线重连
时间: 2023-03-24 19:04:13 浏览: 89
可以使用WebSocket API来实现WebSocket类,同时可以使用setInterval函数来实现心跳检测,使用onclose事件来实现断线重连。以下是一个简单的实现示例:
```javascript
class WebSocketWithHeartbeat {
constructor(url) {
this.url = url;
this.websocket = null;
this.heartbeatInterval = null;
this.reconnectInterval = null;
this.reconnectCount = ;
this.maxReconnectCount = 10;
}
connect() {
this.websocket = new WebSocket(this.url);
this.websocket.onopen = () => {
console.log('WebSocket connected');
this.startHeartbeat();
this.reconnectCount = ;
};
this.websocket.onmessage = (event) => {
console.log('WebSocket message received:', event.data);
};
this.websocket.onclose = () => {
console.log('WebSocket disconnected');
this.stopHeartbeat();
this.reconnect();
};
}
startHeartbeat() {
this.heartbeatInterval = setInterval(() => {
if (this.websocket.readyState === WebSocket.OPEN) {
this.websocket.send('ping');
}
}, 500);
}
stopHeartbeat() {
clearInterval(this.heartbeatInterval);
}
reconnect() {
if (this.reconnectCount < this.maxReconnectCount) {
this.reconnectInterval = setInterval(() => {
console.log('WebSocket reconnecting...');
this.connect();
this.reconnectCount++;
if (this.websocket.readyState === WebSocket.OPEN) {
clearInterval(this.reconnectInterval);
}
}, 500);
} else {
console.log('WebSocket reconnect failed');
}
}
}
```
使用示例:
```javascript
const websocket = new WebSocketWithHeartbeat('ws://localhost:808');
websocket.connect();
```
注意:以上代码仅为示例,实际使用时需要根据具体情况进行修改和优化。