vue2前端同时连接springboot后台与QT后台,springboot后台采用axios,QT后台采用qwebsocket,vue2如何实现
时间: 2024-05-13 09:16:10 浏览: 124
Vue2 可以通过 axios 和 WebSocket 实现与 Spring Boot 后台和 QT 后台的连接。
首先,通过 npm 安装 axios 和 vue-socket.io:
```
npm install axios vue-socket.io
```
在 Vue2 的组件中,可以通过以下方式使用 axios:
```javascript
import axios from 'axios'
export default {
methods: {
fetchData() {
axios.get('/api/data')
.then(response => {
console.log(response.data)
})
.catch(error => {
console.log(error)
})
}
}
}
```
在 Spring Boot 后台中,需要添加 CorsFilter 过滤器,允许跨域请求:
```java
@Component
public class CorsFilter implements Filter {
@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
HttpServletResponse response = (HttpServletResponse) res;
HttpServletRequest request = (HttpServletRequest) req;
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers", "x-requested-with, authorization");
if ("OPTIONS".equalsIgnoreCase(request.getMethod())) {
response.setStatus(HttpServletResponse.SC_OK);
} else {
chain.doFilter(req, res);
}
}
@Override
public void init(FilterConfig filterConfig) {}
@Override
public void destroy() {}
}
```
在 QT 后台中,可以通过以下方式使用 qwebsocket:
```cpp
#include <QCoreApplication>
#include <QtWebSockets/QWebSocket>
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QWebSocket webSocket;
webSocket.open(QUrl("ws://localhost:1234"));
QObject::connect(&webSocket, &QWebSocket::connected, [&webSocket]() {
webSocket.sendTextMessage("Hello from Qt WebSocket!");
});
QObject::connect(&webSocket, &QWebSocket::textMessageReceived, [](const QString& message) {
qDebug() << "Message received: " << message;
});
return a.exec();
}
```
在 Vue2 中,可以通过 vue-socket.io 实现 WebSocket 连接:
```javascript
import VueSocketIO from 'vue-socket.io'
Vue.use(new VueSocketIO({
debug: true,
connection: 'http://localhost:1234'
}))
```
然后,在 Vue2 中就可以通过以下方式使用 WebSocket:
```javascript
export default {
mounted() {
this.$socket.on('message', (message) => {
console.log(message)
})
},
methods: {
sendMessage() {
this.$socket.emit('message', 'Hello from Vue Socket.IO!')
}
}
}
```
通过以上方式,Vue2 可以同时连接 Spring Boot 和 QT 后台。
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