一、项目初始化与配置
1. 创建项目
ohpm init @harmony/utility-payment-app2. 配置权限
// module.json5
{
"requestPermissions": [
{
"name": "ohos.permission.INTERNET"
},
{
"name": "ohos.permission.GET_NETWORK_INFO"
},
{
"name": "ohos.permission.ACCESS_BILLING_SERVICE"
}
]
}二、核心功能实现
1. 电费账户绑定模块
// AccountBinding.ets
@Component
struct AccountBinding {
@State accountInfo: ElectricAccount = {
accountNumber: '',
region: '',
address: ''
}
@State regions: Array<string> = ['北京', '上海', '广州', '深圳']
@State isLoading: boolean = false
build() {
Column() {
Form({ labelPosition: 'fixed' }) {
FormItem({ label: '地区选择' }) {
Select(this.accountInfo.region)
.options(this.regions.map(region => ({ value: region })))
.onSelect((index) => {
this.accountInfo.region = this.regions[index]
})
}
FormItem({ label: '电费账号' }) {
TextInput({ placeholder: '请输入电费账号' })
.onChange((value) => this.accountInfo.accountNumber = value)
}
FormItem({ label: '用电地址' }) {
TextInput({ placeholder: '请输入详细地址' })
.onChange((value) => this.accountInfo.address = value)
}
}
Button('绑定账户', { type: ButtonType.Capsule })
.width('90%')
.margin(20)
.onClick(() => this.bindAccount())
.enabled(!this.isLoading && this.validateForm())
if (this.isLoading) {
LoadingProgress()
.margin({ top: 20 })
}
}
}
async bindAccount() {
this.isLoading = true
try {
await ElectricService.bindAccount(this.accountInfo)
router.replace({ url: 'pages/Home' })
} catch (error) {
prompt.showToast({ message: '绑定失败: ' + error.message })
} finally {
this.isLoading = false
}
}
}2. 电费查询功能
// BillQuery.ets
@Component
struct BillQuery {
@State currentBill: ElectricBill = null
@State historyBills: Array<ElectricBill> = []
@State selectedMonth: string = this.getDefaultMonth()
aboutToAppear() {
this.loadBills()
}
async loadBills() {
try {
const [current, history] = await Promise.all([
ElectricService.getCurrentBill(),
ElectricService.getHistoryBills()
])
this.currentBill = current
this.historyBills = history
} catch (error) {
logger.error('获取账单失败:', error)
}
}
build() {
Column() {
// 当前账单卡片
BillCard({
bill: this.currentBill,
type: 'current'
})
// 历史账单查询
Text('历史账单查询')
.fontSize(18)
.margin({ top: 20, bottom: 10 })
MonthPicker({
selected: this.selectedMonth,
onAccept: (value) => {
this.selectedMonth = value
this.queryHistoryBill(value)
}
})
List() {
ForEach(this.historyBills, (bill) => {
ListItem() {
BillCard({
bill: bill,
type: 'history'
})
}
})
}
.layoutWeight(1)
}
}
}3. 电费缴纳功能
// Payment.ets
@Component
struct Payment {
@State paymentAmount: number = 0
@State paymentMethods: Array<PaymentMethod> = [
{ id: 'alipay', name: '支付宝', icon: 'alipay' },
{ id: 'wechat', name: '微信支付', icon: 'wechat' },
{ id: 'unionpay', name: '银联支付', icon: 'unionpay' }
]
@State selectedMethod: string = 'alipay'
build() {
Column() {
// 金额输入
TextInput({ placeholder: '输入缴费金额' })
.type(InputType.Number)
.onChange((value) => this.paymentAmount = Number(value))
.margin(20)
// 支付方式选择
Text('选择支付方式')
.fontSize(16)
.margin({ left: 20, top: 10, bottom: 10 })
GridRow({ columns: 3 }) {
ForEach(this.paymentMethods, (method) => {
GridCol() {
Column() {
Image($r(`app.media.${method.icon}`))
.width(60)
.height(60)
Text(method.name)
.margin({ top: 5 })
}
.border({
width: this.selectedMethod === method.id ? 2 : 0,
color: '#1a73e8'
})
.onClick(() => this.selectedMethod = method.id)
}
})
}
.margin(20)
// 确认支付按钮
Button('确认支付', { type: ButtonType.Capsule })
.width('90%')
.margin(20)
.enabled(this.paymentAmount > 0)
.onClick(() => this.confirmPayment())
}
}
async confirmPayment() {
try {
const result = await PaymentService.createPayment({
amount: this.paymentAmount,
method: this.selectedMethod
})
if (result.success) {
router.push({
url: 'pages/PaymentResult',
params: { success: true }
})
}
} catch (error) {
prompt.showToast({ message: '支付失败: ' + error.message })
}
}
}三、HarmonyOS 5特色功能集成
1. 分布式缴费提醒
// 跨设备同步缴费提醒
function syncPaymentReminder(account: ElectricAccount) {
const devices = deviceManager.getTrustedDeviceListSync()
devices.forEach(device => {
featureAbility.startAbility({
deviceId: device.deviceId,
bundleName: 'com.example.utility',
abilityName: 'ReminderAbility',
parameters: {
type: 'electric',
account: account.accountNumber,
balance: account.balance
}
})
})
}2. 原子化服务快捷缴费
// QuickPayment.ets
@Entry
@Component
struct QuickPayment {
@State quickAmounts: number[] = [50, 100, 200, 500]
build() {
Column() {
Text('快捷缴费')
.fontSize(20)
.margin({ bottom: 20 })
GridRow({ columns: 2 }) {
ForEach(this.quickAmounts, (amount) => {
GridCol() {
Button(`${amount}元`, { type: ButtonType.Normal })
.height(80)
.margin(10)
.onClick(() => this.startQuickPayment(amount))
}
})
}
}
}
startQuickPayment(amount: number) {
router.push({
url: 'pages/Payment',
params: { amount }
})
}
}3. 缴费记录卡片服务
// config.json卡片配置
{
"forms": [
{
"name": "PaymentCard",
"description": "电费缴费卡片",
"type": "JS",
"jsComponentName": "PaymentCard",
"colorMode": "auto",
"isDefault": true,
"updateEnabled": true,
"scheduledUpdateTime": "08:00",
"updateDuration": 1,
"defaultDimension": "2 * 2",
"supportDimensions": ["2 * 2", "2 * 4"]
}
]
}四、数据安全与支付处理
1. 支付安全处理
// PaymentService.ets
import payment from '@ohos.iap';
class PaymentService {
static async createPayment(params: PaymentParams) {
try {
const result = await payment.purchase({
productId: 'electric_payment',
amount: params.amount,
currency: 'CNY',
extraInfo: {
account: params.account
}
})
if (result.paymentState === payment.PaymentState.SUCCESS) {
await this.verifyPayment(result.purchaseToken)
return { success: true }
}
} catch (error) {
logger.error('支付处理失败:', error)
throw error
}
}
}2. 数据加密存储
// 使用HarmonyOS加密API存储敏感信息
import cryptoFramework from '@ohos.security.cryptoFramework';
async function encryptAccountData(account: ElectricAccount) {
const cipher = cryptoFramework.createCipher('AES256|GCM|PKCS7')
await cipher.init(cryptoFramework.CryptoMode.ENCRYPT_MODE, secretKey)
const input: cryptoFramework.DataBlob = {
data: stringToUint8Array(JSON.stringify(account))
}
const output = await cipher.doFinal(input)
return output.data
}五、UI/UX优化设计
1. 用电数据可视化
// ConsumptionChart.ets
@Component
struct ConsumptionChart {
@Prop consumptionData: Array<ConsumptionPoint>
build() {
Canvas(this.context) {
ForEach(this.consumptionData, (item, index) => {
Path()
.width(20)
.height(item.value * 2)
.fill(getColorByUsage(item.value))
.position({ x: index * 30 + 10, y: 200 - item.value * 2 })
Text(item.month)
.position({ x: index * 30 + 10, y: 210 })
})
}
.height(250)
.margin(20)
}
}2. 主题配色方案
// resources/base/theme/electric_theme.json
{
"color": {
"electric_primary": "#1a73e8",
"electric_secondary": "#34a853",
"electric_warning": "#fbbc05",
"electric_danger": "#ea4335",
"chart_bar": "#4285f4",
"chart_line": "#34a853"
}
}六、测试与发布
1. 单元测试示例
// ElectricService.test.ets
describe('ElectricService Test', () => {
beforeAll(() => {
jest.mock('@ohos.net.http')
})
it('should fetch current bill correctly', async () => {
const mockBill = { amount: 150.50, dueDate: '2023-11-20' }
http.request.mockResolvedValue({ data: mockBill })
const result = await ElectricService.getCurrentBill()
expect(result.amount).toBe(150.50)
})
it('should handle payment failure', async () => {
http.request.mockRejectedValue(new Error('Network Error'))
await expect(ElectricService.payBill(100))
.rejects
.toThrow('支付请求失败')
})
})2. 应用发布准备
-
签名配置：
hdc appmode install --signature [签名文件] --bundle-name com.example.electric -
上架华为应用市场：
- 准备支付相关资质文件
- 确保符合金融类应用合规要求
- 提交安全扫描报告
七、性能优化建议
-
数据缓存策略：
// 实现两级缓存 const BillCache = { memoryCache: new Map(), async get(key) { if (this.memoryCache.has(key)) { return this.memoryCache.get(key) } const diskData = await preferences.get(key) if (diskData) { this.memoryCache.set(key, diskData) return diskData } return null }, async set(key, value) { this.memoryCache.set(key, value) await preferences.set(key, value) } } -
预加载关键资源：
// 应用启动时预加载 aboutToAppear() { this.loadLogos() this.loadPaymentMethods() } -
按需加载账单详情：
// 懒加载账单详情 LazyForEach(this.bills, (bill) => { BillItem({ bill }) })
通过以上实现，您可以构建一个功能完善、安全可靠的鸿蒙电费缴纳与查询小程序，充分利用HarmonyOS 5的分布式能力和支付服务，为用户提供便捷的生活缴费体验。
