源码 https://github.com/webabcd/HarmonyDemo
作者 webabcd
开天辟地 HarmonyOS(鸿蒙) - ArkTS 多线程: ASON（对 @Sendable 对象做序列化和反序列化）
示例如下:
pages\arkts\concurrent\ASONDemo.ets
/** ASON - 对 @Sendable 对象做序列化和反序列化* 相对于 JSON.parse() 来说 ArkTSUtils.ASON.parse() 可以将字符串反序列化为一个 @Sendable 对象*/import { TitleBar, MyLog } from '../../TitleBar';
import { ArkTSUtils, taskpool } from '@kit.ArkTS';@Sendable
class MyClass {id: number = 0;constructor(id: number) {this.id = id;}
}@Concurrent
async function fun1(myClass: MyClass): Promise<MyClass> {for (let i = 0; i < 1000_000; i++) {myClass.id += 1}return myClass
}
@Concurrent
async function fun2(myClass: MyClass): Promise<MyClass> {for (let i = 0; i < 1000_000; i++) {myClass.id += 1}return myClass
}
async function sample(myClass: MyClass): Promise<string> {try {let task1: taskpool.Task = new taskpool.Task(fun1, myClass)let task2: taskpool.Task = new taskpool.Task(fun2, myClass)let resultList: MyClass[] = []await Promise.allSettled([taskpool.execute(task1), taskpool.execute(task2)]).then(results => {results.forEach(result => {if (result.status == 'fulfilled') {resultList.push(result.value as MyClass)}})});return resultList.map(p => p.id).join(',')} catch (e) {return "taskpool error: " + e}
}@Entry
@Component
struct ASONDemo {@State message:string = ""build() {Column({space:10}) {TitleBar()Text(this.message).fontSize(16)// 通过 JSON.stringify(), JSON.parse() 做序列化和反序列化// stringify 就是字符串化的意思，ify 后缀来自于拉丁语 ificare，是使...化的意思Button("JSON 序列化和反序列化").fontSize(16).onClick(() => {let myClass = new MyClass(0)let json = JSON.stringify(myClass)let obj = JSON.parse(json) as MyClassthis.message = `JSON json:${json}, id:${obj.id}`})// 通过 ArkTSUtils.ASON.stringify(), ArkTSUtils.ASON.parse() 做序列化和反序列化Button("ASON 序列化和反序列化").fontSize(16).onClick(() => {let myClass = new MyClass(0)let json = ArkTSUtils.ASON.stringify(myClass)let obj = ArkTSUtils.ASON.parse(json) as MyClassthis.message = `ASON json:${json}, id:${obj.id}`})// 通过 JSON.parse() 做反序列化，反序列化出的对象无 @Sendable 特性Button("JSON 反序列化出的对象无 @Sendable 特性").fontSize(16).onClick(async () => {let obj = JSON.parse('{"id":0}') as MyClassthis.message = await sample(obj)})// 通过 ArkTSUtils.ASON.parse() 做反序列化，反序列化出的对象有 @Sendable 特性Button("ASON 反序列化出的对象有 @Sendable 特性").fontSize(16).onClick(async () => {let obj = ArkTSUtils.ASON.parse('{"id":0}') as MyClassthis.message = await sample(obj)})}}
}
源码 https://github.com/webabcd/HarmonyDemo
作者 webabcd
