feat: 添加构建时间信息和相关功能

back-end/src/routes/apiRoutes.js

@@ -1,23 +1,29 @@
 const express = require('express')
 const { success } = require('../utils/response')
+const { getBuildTimestamp } = require('../utils/buildInfo')
 const wechatRoutes = require('./wechatRoutes')
 
 const router = express.Router()
 
-router.post('/test-helloworld', (req, res) => {
+function respondHelloWorld(req, res) {
     return success(res, '请求成功', {
         message: 'Hello, World!',
         timestamp: new Date().toISOString(),
         status: 'success',
+        build_time: getBuildTimestamp(),
     })
-})
+}
 
-router.post('/health', (req, res) => {
+function respondHealth(req, res) {
     return success(res, '服务运行正常', {
         status: 'healthy',
         timestamp: new Date().toISOString(),
     })
-})
+}
+
+router.post('/test-helloworld', respondHelloWorld)
+
+router.post('/health', respondHealth)
 
 router.use('/wechat', wechatRoutes)
 

back-end/src/utils/buildInfo.js

@@ -0,0 +1,30 @@
+const fs = require('fs')
+const path = require('path')
+
+function getBuildInfoFilePath() {
+    return path.resolve(__dirname, '..', '..', 'build-info.json')
+}
+
+function getBuildTimestamp() {
+    if (process.env.BUILD_TIME) {
+        return process.env.BUILD_TIME
+    }
+
+    const filePath = getBuildInfoFilePath()
+
+    if (!fs.existsSync(filePath)) {
+        return null
+    }
+
+    try {
+        const content = fs.readFileSync(filePath, 'utf8')
+        const payload = JSON.parse(content)
+        return payload.buildTime || null
+    } catch {
+        return null
+    }
+}
+
+module.exports = {
+    getBuildTimestamp,
+}