How to implement vue online chat function

Implementation method: 1. Create a Vue project, you can use Vue CLI to quickly build the project; 2. Introduce WebSocket into the Vue project; 3. Create a WebSocket connection in the Vue component; 4. In the Vue component Monitor WebSocket events, including successful connection, connection closure, message reception and other events; 5. Implement the function of sending messages; 6. Implement the function of receiving messages; 7. You can add more functions according to needs, such as displaying online users and sending pictures. , expressions, etc.

To implement Vue’s online chat function, you can follow the following steps:

1. Create a Vue project, you can use the Vue CLI to quickly build the project.

2. To introduce WebSocket into the Vue project, you can use WebSocket API or third-party libraries, such as Socket.io.

3. Create a WebSocket connection in the Vue component. You can use `new WebSocket(url)` to create a connection, where url is the WebSocket service address provided by the backend.

4. Listen to WebSocket events in the Vue component, including successful connection, connection closing, message reception and other events. You can use WebSocket's `onopen`, `onclose` and `onmessage` events to listen.

5. To implement the function of sending messages, you can define an input box and send button in the Vue component. When the user clicks the send button, the `send` method of WebSocket is called to send the message to the backend.

6. Implement the function of receiving messages. When WebSocket receives a message, the `onmessage` event is triggered. The received message can be stored in the data of the Vue component and displayed on the page.

7. More functions can be added according to needs, such as displaying online users, sending pictures, emoticons, etc.

It should be noted that the above steps are only a general implementation idea. The specific implementation details need to be adjusted and improved according to your specific needs and the interface provided by the backend.

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