1e41f4b71Sopenharmony_ci# @ohos.hiAppEvent (应用打点) 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci本模块提供了应用事件打点能力,包括对打点数据的落盘,以及对打点功能的管理配置。 4e41f4b71Sopenharmony_ci 5e41f4b71Sopenharmony_ci> **说明:** 6e41f4b71Sopenharmony_ci> 7e41f4b71Sopenharmony_ci> - 本模块接口从API version 9开始废弃,建议使用新接口[`@ohos.hiviewdfx.hiAppEvent`](js-apis-hiviewdfx-hiappevent.md)替代。 8e41f4b71Sopenharmony_ci> - 本模块首批接口从API version 7开始支持。后续版本的新增接口,采用上角标单独标记接口的起始版本。 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ci## 导入模块 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci```ts 14e41f4b71Sopenharmony_ciimport hiAppEvent from '@ohos.hiAppEvent'; 15e41f4b71Sopenharmony_ci``` 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci## 使用说明 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ci开发者在使用应用事件打点功能前,需要首先了解应用事件相关的参数规格定义。 20e41f4b71Sopenharmony_ci 21e41f4b71Sopenharmony_ci**事件名称** 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ci事件名称为string类型,字符串非空且长度在48个字符以内,首字符必须为字母字符或$字符,中间字符必须为数字字符、字母字符或下划线字符,结尾字符必须为数字字符或字母字符。 24e41f4b71Sopenharmony_ci 25e41f4b71Sopenharmony_ci**事件类型** 26e41f4b71Sopenharmony_ci 27e41f4b71Sopenharmony_ci事件类型为[EventType](#eventtype)枚举类型。 28e41f4b71Sopenharmony_ci 29e41f4b71Sopenharmony_ci**事件参数** 30e41f4b71Sopenharmony_ci 31e41f4b71Sopenharmony_ci事件参数为object类型,key为事件的参数名称,value为事件的参数值,其规格定义如下: 32e41f4b71Sopenharmony_ci 33e41f4b71Sopenharmony_ci- 参数名为string类型,字符串非空且长度在32个字符以内,首字符必须为字母字符或$字符,中间字符必须为数字字符、字母字符或下划线字符,结尾字符必须为数字字符或字母字符; 34e41f4b71Sopenharmony_ci- 参数值支持string、number、boolean、数组类型; 35e41f4b71Sopenharmony_ci- 参数值为string类型时,其长度需在8*1024个字符以内,超出会做丢弃处理; 36e41f4b71Sopenharmony_ci- 参数值为number类型时,其取值需在Number.MIN_SAFE_INTEGER~Number.MAX_SAFE_INTEGER范围内,超出可能会产生不确定值; 37e41f4b71Sopenharmony_ci- 参数值为数组类型时,数组中的元素类型只能全为string、number、boolean中的一种,且元素个数需在100以内,超出会做丢弃处理; 38e41f4b71Sopenharmony_ci- 参数个数需在32以内,超出的参数会做丢弃处理。 39e41f4b71Sopenharmony_ci 40e41f4b71Sopenharmony_ci**事件回调** 41e41f4b71Sopenharmony_ci 42e41f4b71Sopenharmony_ci开发者在调用事件打点方法后,可以在回调函数中对打点返回值进行处理,当前支持callback形式和Promise形式的回调,其返回值规格定义如下: 43e41f4b71Sopenharmony_ci 44e41f4b71Sopenharmony_ci- 返回值为0,表示事件校验成功,将事件直接落盘到事件文件; 45e41f4b71Sopenharmony_ci- 返回值大于0,表示事件校验存在异常参数,在忽略异常参数后将事件落盘到事件文件; 46e41f4b71Sopenharmony_ci- 返回值小于0,表示事件校验失败,不将事件落盘到事件文件。 47e41f4b71Sopenharmony_ci 48e41f4b71Sopenharmony_ci## hiAppEvent.write 49e41f4b71Sopenharmony_ci 50e41f4b71Sopenharmony_ciwrite(eventName: string, eventType: EventType, keyValues: object, callback: AsyncCallback<void>): void 51e41f4b71Sopenharmony_ci 52e41f4b71Sopenharmony_ci应用事件打点方法,将事件写入到当天的事件文件中,使用callback方式作为异步回调。 53e41f4b71Sopenharmony_ci 54e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.HiviewDFX.HiAppEvent 55e41f4b71Sopenharmony_ci 56e41f4b71Sopenharmony_ci**参数:** 57e41f4b71Sopenharmony_ci 58e41f4b71Sopenharmony_ci| 参数名 | 类型 | 必填 | 说明 | 59e41f4b71Sopenharmony_ci| --------- | ------------------------- | ---- | -------------- | 60e41f4b71Sopenharmony_ci| eventName | string | 是 | 事件名称。 | 61e41f4b71Sopenharmony_ci| eventType | [EventType](#eventtype) | 是 | 事件类型。 | 62e41f4b71Sopenharmony_ci| keyValues | object | 是 | 事件参数。 | 63e41f4b71Sopenharmony_ci| callback | AsyncCallback<void> | 是 | 事件回调函数。 | 64e41f4b71Sopenharmony_ci 65e41f4b71Sopenharmony_ci**示例:** 66e41f4b71Sopenharmony_ci 67e41f4b71Sopenharmony_ci```ts 68e41f4b71Sopenharmony_ciimport { BusinessError } from '@ohos.base' 69e41f4b71Sopenharmony_ci 70e41f4b71Sopenharmony_cilet eventParams: Record<string, number | string> = { 71e41f4b71Sopenharmony_ci "int_data": 100, 72e41f4b71Sopenharmony_ci "str_data": "strValue", 73e41f4b71Sopenharmony_ci}; 74e41f4b71Sopenharmony_cihiAppEvent.write("test_event", hiAppEvent.EventType.FAULT, eventParams, (err: BusinessError) => { 75e41f4b71Sopenharmony_ci if (err) { 76e41f4b71Sopenharmony_ci // 事件写入异常:事件存在异常参数时忽略异常参数后继续写入,或者事件校验失败时不执行写入 77e41f4b71Sopenharmony_ci console.error(`failed to write event, code=${err.code}`); 78e41f4b71Sopenharmony_ci return; 79e41f4b71Sopenharmony_ci } 80e41f4b71Sopenharmony_ci // 事件写入正常 81e41f4b71Sopenharmony_ci console.log(`success to write event`); 82e41f4b71Sopenharmony_ci}); 83e41f4b71Sopenharmony_ci``` 84e41f4b71Sopenharmony_ci 85e41f4b71Sopenharmony_ci 86e41f4b71Sopenharmony_ci## hiAppEvent.write 87e41f4b71Sopenharmony_ci 88e41f4b71Sopenharmony_ciwrite(eventName: string, eventType: EventType, keyValues: object): Promise<void> 89e41f4b71Sopenharmony_ci 90e41f4b71Sopenharmony_ci应用事件打点方法,将事件写入到当天的事件文件中,使用Promise方式作为异步回调。 91e41f4b71Sopenharmony_ci 92e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.HiviewDFX.HiAppEvent 93e41f4b71Sopenharmony_ci 94e41f4b71Sopenharmony_ci**参数:** 95e41f4b71Sopenharmony_ci 96e41f4b71Sopenharmony_ci| 参数名 | 类型 | 必填 | 说明 | 97e41f4b71Sopenharmony_ci| --------- | ----------------------- | ---- | ---------- | 98e41f4b71Sopenharmony_ci| eventName | string | 是 | 事件名称。 | 99e41f4b71Sopenharmony_ci| eventType | [EventType](#eventtype) | 是 | 事件类型。 | 100e41f4b71Sopenharmony_ci| keyValues | object | 是 | 事件参数。 | 101e41f4b71Sopenharmony_ci 102e41f4b71Sopenharmony_ci**返回值:** 103e41f4b71Sopenharmony_ci 104e41f4b71Sopenharmony_ci| 类型 | 说明 | 105e41f4b71Sopenharmony_ci| ------------------- | ------------------------------------------------------------ | 106e41f4b71Sopenharmony_ci| Promise<void> | Promise对象,可以在其then()、catch()方法中分别对事件写入成功、写入异常的情况进行异步处理。 | 107e41f4b71Sopenharmony_ci 108e41f4b71Sopenharmony_ci**示例:** 109e41f4b71Sopenharmony_ci 110e41f4b71Sopenharmony_ci```ts 111e41f4b71Sopenharmony_ciimport { BusinessError } from '@ohos.base' 112e41f4b71Sopenharmony_ci 113e41f4b71Sopenharmony_cilet eventParams: Record<string, number | string> = { 114e41f4b71Sopenharmony_ci "int_data": 100, 115e41f4b71Sopenharmony_ci "str_data": "strValue", 116e41f4b71Sopenharmony_ci}; 117e41f4b71Sopenharmony_cihiAppEvent.write("test_event", hiAppEvent.EventType.FAULT, eventParams).then(() => { 118e41f4b71Sopenharmony_ci // 事件写入正常 119e41f4b71Sopenharmony_ci console.log(`success to write event`); 120e41f4b71Sopenharmony_ci}).catch((err: BusinessError) => { 121e41f4b71Sopenharmony_ci // 事件写入异常:事件存在异常参数时忽略异常参数后继续写入,或者事件校验失败时不执行写入 122e41f4b71Sopenharmony_ci console.error(`failed to write event, code=${err.code}`); 123e41f4b71Sopenharmony_ci}); 124e41f4b71Sopenharmony_ci``` 125e41f4b71Sopenharmony_ci 126e41f4b71Sopenharmony_ci## hiAppEvent.configure 127e41f4b71Sopenharmony_ci 128e41f4b71Sopenharmony_ciconfigure(config: ConfigOption): boolean 129e41f4b71Sopenharmony_ci 130e41f4b71Sopenharmony_ci应用事件打点配置方法,可用于配置打点开关、文件目录存储限额大小等功能。 131e41f4b71Sopenharmony_ci 132e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.HiviewDFX.HiAppEvent 133e41f4b71Sopenharmony_ci 134e41f4b71Sopenharmony_ci**参数:** 135e41f4b71Sopenharmony_ci 136e41f4b71Sopenharmony_ci| 参数名 | 类型 | 必填 | 说明 | 137e41f4b71Sopenharmony_ci| ------ | ----------------------------- | ---- | ------------------------ | 138e41f4b71Sopenharmony_ci| config | [ConfigOption](#configoption) | 是 | 应用事件打点配置项对象。 | 139e41f4b71Sopenharmony_ci 140e41f4b71Sopenharmony_ci**返回值:** 141e41f4b71Sopenharmony_ci 142e41f4b71Sopenharmony_ci| 类型 | 说明 | 143e41f4b71Sopenharmony_ci| ------- | ----------------------------------------------------------- | 144e41f4b71Sopenharmony_ci| boolean | 配置结果,true 表示配置成功,false 表示配置失败。 | 145e41f4b71Sopenharmony_ci 146e41f4b71Sopenharmony_ci**示例:** 147e41f4b71Sopenharmony_ci 148e41f4b71Sopenharmony_ci```ts 149e41f4b71Sopenharmony_ci// 配置应用事件打点功能开关 150e41f4b71Sopenharmony_cilet config1: hiAppEvent.ConfigOption = { 151e41f4b71Sopenharmony_ci disable: true, 152e41f4b71Sopenharmony_ci}; 153e41f4b71Sopenharmony_cihiAppEvent.configure(config1); 154e41f4b71Sopenharmony_ci 155e41f4b71Sopenharmony_ci// 配置事件文件目录存储限额大小 156e41f4b71Sopenharmony_cilet config2: hiAppEvent.ConfigOption = { 157e41f4b71Sopenharmony_ci maxStorage: '100M', 158e41f4b71Sopenharmony_ci}; 159e41f4b71Sopenharmony_cihiAppEvent.configure(config2); 160e41f4b71Sopenharmony_ci``` 161e41f4b71Sopenharmony_ci 162e41f4b71Sopenharmony_ci## ConfigOption 163e41f4b71Sopenharmony_ci 164e41f4b71Sopenharmony_ci此接口提供了应用打点的配置选项。 165e41f4b71Sopenharmony_ci 166e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.HiviewDFX.HiAppEvent 167e41f4b71Sopenharmony_ci 168e41f4b71Sopenharmony_ci| 名称 | 类型 | 必填 | 说明 | 169e41f4b71Sopenharmony_ci| ---------- | ------- | ---- | ------------------------------------------------------------ | 170e41f4b71Sopenharmony_ci| disable | boolean | 否 | 应用打点功能开关。配置值为true表示关闭打点功能,false表示不关闭打点功能。 | 171e41f4b71Sopenharmony_ci| maxStorage | string | 否 | 打点数据本地存储文件所在目录的配额大小,默认限额为“10M”。所在目录大小超出限额后会对目录进行清理操作,会按从旧到新的顺序逐个删除打点数据文件,直到目录大小不超出限额时停止。 | 172e41f4b71Sopenharmony_ci 173e41f4b71Sopenharmony_ci 174e41f4b71Sopenharmony_ci## EventType 175e41f4b71Sopenharmony_ci 176e41f4b71Sopenharmony_ci事件类型枚举。 177e41f4b71Sopenharmony_ci 178e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.HiviewDFX.HiAppEvent 179e41f4b71Sopenharmony_ci 180e41f4b71Sopenharmony_ci| 名称 | 值 | 说明 | 181e41f4b71Sopenharmony_ci| --------- | ---- | -------------- | 182e41f4b71Sopenharmony_ci| FAULT | 1 | 故障类型事件。 | 183e41f4b71Sopenharmony_ci| STATISTIC | 2 | 统计类型事件。 | 184e41f4b71Sopenharmony_ci| SECURITY | 3 | 安全类型事件。 | 185e41f4b71Sopenharmony_ci| BEHAVIOR | 4 | 行为类型事件。 | 186e41f4b71Sopenharmony_ci 187e41f4b71Sopenharmony_ci 188e41f4b71Sopenharmony_ci## Event 189e41f4b71Sopenharmony_ci 190e41f4b71Sopenharmony_ci此接口提供了所有预定义事件的事件名称常量。 191e41f4b71Sopenharmony_ci 192e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.HiviewDFX.HiAppEvent 193e41f4b71Sopenharmony_ci 194e41f4b71Sopenharmony_ci| 名称 | 类型 | 可读 | 可写 | 说明 | 195e41f4b71Sopenharmony_ci| ------------------------- | ------ | ---- | ---- | -------------------- | 196e41f4b71Sopenharmony_ci| USER_LOGIN | string | 是 | 否 | 用户登录事件。 | 197e41f4b71Sopenharmony_ci| USER_LOGOUT | string | 是 | 否 | 用户登出事件。 | 198e41f4b71Sopenharmony_ci| DISTRIBUTED_SERVICE_START | string | 是 | 否 | 分布式服务启动事件。 | 199e41f4b71Sopenharmony_ci 200e41f4b71Sopenharmony_ci 201e41f4b71Sopenharmony_ci## Param 202e41f4b71Sopenharmony_ci 203e41f4b71Sopenharmony_ci此接口提供了所有预定义参数的参数名称常量。 204e41f4b71Sopenharmony_ci 205e41f4b71Sopenharmony_ci**系统能力:** SystemCapability.HiviewDFX.HiAppEvent 206e41f4b71Sopenharmony_ci 207e41f4b71Sopenharmony_ci| 名称 | 类型 | 可读 | 可写 | 说明 | 208e41f4b71Sopenharmony_ci| ------------------------------- | ------ | ---- | ---- | ------------------ | 209e41f4b71Sopenharmony_ci| USER_ID | string | 是 | 否 | 用户自定义ID。 | 210e41f4b71Sopenharmony_ci| DISTRIBUTED_SERVICE_NAME | string | 是 | 否 | 分布式服务名称。 | 211e41f4b71Sopenharmony_ci| DISTRIBUTED_SERVICE_INSTANCE_ID | string | 是 | 否 | 分布式服务实例ID。 |