12451 b553c4e519 feat: API 统一 + 设备详情补全 + H5 导航优化

- API 路由统一: 移除 /api/h5/，统一 /api/pms/ 入口
- 二进制改名: api-server -> pms-api（与服务名一致）
- nginx: 合并 /api/ + /pms/api/ 为 /api/pms/
- 新增 docs/API.md 接口文档
- 后端: CabinetDetail 增加 rssi/pow_fail/address/soc 等字段
- Redis 管道批量读取仓体实时数据（SOC/电压/电流/功率）
- DB: 所有 TIMESTAMP 列改为 DATETIME（修复类型不匹配）
- 用户管理: 新增创建时间/修改时间列，状态改用 Switch
- 角色管理/用户管理: 操作按钮改为图标
- PC 设备详情: 基本信息补全 RSSI/ICCID/电源/地址
- PC 卡片: 通道统计改用 Lucide 图标，颜色统一
- PC 二维码: canvas 渲染，含编号文字，支持右键下载
- H5: 按 uni-app 规范修正导航（navigateTo 替代 reLaunch）
- H5: 详情页加返回导航条
- H5: 扫码支持摄像头（jsQR）+ ?id= 参数
- H5: 底部 tabBar 在所有页面常显
- H5: 首页统计改为 6 项（设备/通道/空闲/充电/充满/故障）
- H5: 下拉刷新 / 上拉加载
- 产品首页: 添加业务联系
- 文档: 清理过时文件，补充缺失规范章节

2026-07-04 04:03:02 +08:00

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title, impact, impactDescription, type, tags

title

impact

impactDescription

type

Watchers Created Asynchronously Must Be Manually Stopped

Impact: HIGH - Watchers created inside async callbacks (setTimeout, Promise.then, async/await) are not automatically bound to the component instance. They continue running after the component unmounts, causing memory leaks and errors.

Always manually stop watchers that are created asynchronously, or restructure your code to create watchers synchronously with conditional logic.

Task Checklist

Create watchers synchronously in setup() or lifecycle hooks when possible
If async creation is unavoidable, store and call the unwatch function
Use onUnmounted to clean up async-created watchers
Consider using conditional logic inside a sync watcher instead
Watch for this pattern in setTimeout, Promise callbacks, and after await

Incorrect:

<script setup>
import { ref, watch, watchEffect, onMounted } from 'vue'

const data = ref(null)

// BAD: Watcher created in setTimeout won't auto-stop
onMounted(() => {
  setTimeout(() => {
    watchEffect(() => {
      console.log(data.value)  // Keeps running after unmount!
    })
  }, 1000)
})

// BAD: Watcher created after await won't auto-stop
onMounted(async () => {
  await loadInitialData()

  // This watcher is NOT bound to component lifecycle
  watch(data, (newVal) => {
    processData(newVal)  // Memory leak!
  })
})

// BAD: Watcher in Promise callback
fetch('/api/config').then(() => {
  watch(data, () => {
    // Leaks memory!
  })
})
</script>

Correct:

<script setup>
import { ref, watch, watchEffect, onMounted, onUnmounted } from 'vue'

const data = ref(null)
const isDataLoaded = ref(false)
let asyncWatcherCleanup = null

// CORRECT: Synchronous watcher with conditional logic
watch(
  data,
  (newVal) => {
    if (isDataLoaded.value && newVal) {
      processData(newVal)
    }
  }
)

onMounted(async () => {
  await loadInitialData()
  isDataLoaded.value = true
})

// CORRECT: Manual cleanup for async-created watcher
onMounted(() => {
  setTimeout(() => {
    const unwatch = watchEffect(() => {
      console.log(data.value)
    })

    // Store for cleanup
    asyncWatcherCleanup = unwatch
  }, 1000)
})

onUnmounted(() => {
  // Clean up async watcher
  if (asyncWatcherCleanup) {
    asyncWatcherCleanup()
  }
})
</script>

Preferred Pattern: Conditional Watch Logic

<script setup>
import { ref, watch, onMounted } from 'vue'

const config = ref(null)
const userData = ref(null)

// BEST: Create watcher synchronously, handle async condition inside
watch(
  userData,
  (newData) => {
    // Only process when config is loaded
    if (config.value && newData) {
      applyUserSettings(config.value, newData)
    }
  }
)

onMounted(async () => {
  config.value = await fetchConfig()
  // Watcher will start processing once config is loaded
})
</script>

Using watchEffect with Conditional Logic

<script setup>
import { ref, watchEffect, onMounted } from 'vue'

const apiData = ref(null)
const isReady = ref(false)

// GOOD: Synchronous watchEffect with condition
watchEffect(() => {
  if (isReady.value && apiData.value) {
    // This pattern avoids async watcher creation
    doSomethingWithData(apiData.value)
  }
})

onMounted(async () => {
  apiData.value = await fetchData()
  isReady.value = true
})
</script>

Tracking Multiple Async Watchers

<script setup>
import { ref, watch, onUnmounted } from 'vue'

const unwatchers = []

function createDynamicWatcher(source, callback) {
  const unwatch = watch(source, callback)
  unwatchers.push(unwatch)
  return unwatch
}

// Clean up all dynamic watchers
onUnmounted(() => {
  unwatchers.forEach(unwatch => unwatch())
})
</script>

Reference

Vue.js Watchers - Stopping a Watcher

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