only server

.github/workflows/only server.yml

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+name: Only Server
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    # 安装 Node.js 和 npm
+    - name: Install Node.js and npm
+      uses: actions/setup-node@v2.1.5
+      with:
+        node-version: '18'
+
+    # 后端构建步骤
+    - name: Build and start Node.js server
+      working-directory: ./
+      run: |
+        npm install
+        sudo node app.js
+      env:
+        NODE_ENV: production

app.js

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+const app = require('express')();
+
+const port = 80;
+
+app.use((req, res, next) => {
+	res.header('Access-Control-Allow-Headers', '*');
+	res.header('Access-Control-Allow-Origin', '*');
+	if (req.method === 'OPTIONS') {
+		res.sendStatus(200);
+	} else {
+		next();
+	}
+});
+
+app.get('/', (req, res) => {
+	res.send('hello world');
+});
+
+app.listen(port, () => {
+	console.log(`server is running on localhost:${port}`);
+});