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要在React中使用Socket.IO實(shí)現(xiàn)實(shí)時(shí)通信,可以按照以下步驟進(jìn)行操作:
npm install socket.io-client
import React, { Component } from 'react';
import socketIOClient from 'socket.io-client';
class RealTimeComponent extends Component {
state = {
messages: []
};
componentDidMount() {
const socket = socketIOClient('http://localhost:3000');
socket.on('message', (data) => {
this.setState(prevState => ({
messages: [...prevState.messages, data]
}));
});
}
render() {
return (
<div>
{this.state.messages.map((message, index) => (
<div key={index}>{message}</div>
))}
</div>
);
}
}
export default RealTimeComponent;
import React, { Component } from 'react';
import socketIOClient from 'socket.io-client';
class RealTimeComponent extends Component {
state = {
messages: []
};
componentDidMount() {
const socket = socketIOClient('http://localhost:3000');
socket.on('message', (data) => {
this.setState(prevState => ({
messages: [...prevState.messages, data]
}));
});
}
sendMessage = (message) => {
const socket = socketIOClient('http://localhost:3000');
socket.emit('message', message);
}
render() {
return (
<div>
{this.state.messages.map((message, index) => (
<div key={index}>{message}</div>
))}
<button onClick={() => this.sendMessage('Hello, world!')}>Send Message</button>
</div>
);
}
}
export default RealTimeComponent;
通過(guò)以上步驟,您可以在React中使用Socket.IO實(shí)現(xiàn)實(shí)時(shí)通信,實(shí)現(xiàn)消息的發(fā)送和接收功能。
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