harmony-utils之JSONUtil，JSON工具类
原创
harmony-utils之JSONUtil，JSON工具类
原创
童长老
修改于 2025-07-21 08:06:33
修改于 2025-07-21 08:06:33
代码可运行
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代码可运行
harmony-utils 简介与说明
harmony-utils 一款功能丰富且极易上手的HarmonyOS工具库，借助众多实用工具类，致力于助力开发者迅速构建鸿蒙应用。其封装的工具涵盖了APP、设备、屏幕、授权、通知、线程间通信、弹框、吐司、生物认证、用户首选项、拍照、相册、扫码、文件、日志，异常捕获、字符、字符串、数字、集合、日期、随机、base64、加密、解密、JSON等一系列的功能和操作，能够满足各种不同的开发需求。 picker_utils 是harmony-utils拆分出来的一个子库，包含PickerUtil、PhotoHelper、ScanUtil。
下载安装
ohpm i @pura/harmony-utils
ohpm i @pura/picker_utils
//全局初始化方法，在UIAbility的onCreate方法中初始化 AppUtil.init()
onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
AppUtil.init(this.context);
}API方法与使用
jsonToBean JSON字符串转对象
let objStr: string = '{"id":"No_1060701","name":"张三","age":20,"addr":"乌市天山区","work":"工程师","salary":9223372036854775807.2512,"user":{"id":"No_1060701","name":"张三","age":20,"addr":"乌市天山区","work":"工程师"}}';
let user = JSONUtil.jsonToBean(objStr, User);beanToJsonStr 对象转JSON字符串
let user: User = new User();
let str = JSONUtil.beanToJsonStr(user);jsonToArray JSON字符串转Array
let arrayStr = ResUtil.getRawFileContentStrSync('data_utils.json');
let array = JSONUtil.jsonToArray<DescribeBean>(this.arrayStr);
array.forEach((item, index) => {
LogUtil.error(`${index} - ${JSON.stringify(item)}`);
});jsonToMap JSON字符串转Map
let mapStr: string = '{"id":"NO_10000011","name":"王五五","age":"30","addr":"乌市天山区","work":"攻城狮","salary":9223372036854775807.2512}';
let map = JSONUtil.jsonToMap(mapStr);
map.forEach((value, key) => {
LogUtil.error(`${key} - ${value}`);
});mapToJsonStr Map转JSON字符串
let mapStr: string = '{"id":"NO_10000011","name":"王五五","age":"30","addr":"乌市天山区","work":"攻城狮","salary":9223372036854775807.2512}';
let map = JSONUtil.jsonToMap(mapStr);isJSONStr 判断是否是字符串格式json
let objStr: string = '{"id":"No_1060701","name":"张三","age":20,"addr":"乌市天山区","work":"工程师","salary":9223372036854775807.2512,"user":{"id":"No_1060701","name":"张三","age":20,"addr":"乌市天山区","work":"工程师"}}';
let b1 = JSONUtil.isJSONStr(objStr);
let b2 = JSONUtil.isJSONStr("abcd1234");示例代码
import { router } from '@kit.ArkUI';
import { MockSetup } from '@ohos/hamock';
import { JSONUtil, LogUtil, ResUtil, ToastUtil } from '@pura/harmony-utils';
import { TitleBarView } from '../../component/TitleBarView';
import { DescribeBean } from '../../model/DescribeBean';
import { User } from '../../model/User';
/**
* JSON工具类
*/
@Entry
@Component
struct Index {
private scroller: Scroller = new Scroller();
@State describe: DescribeBean = router.getParams() as DescribeBean;
private readonly objStr: string = '{"id":"No_1060701","name":"张三","age":20,"addr":"乌市天山区","work":"工程师","salary":9223372036854775807.2512,"user":{"id":"No_1060701","name":"张三","age":20,"addr":"乌市天山区","work":"工程师"}}';
private readonly mapStr: string = '{"id":"NO_10000011","name":"王五五","age":"30","addr":"乌市天山区","work":"攻城狮","salary":9223372036854775807.2512}';
@State arrayStr: string = '';
@MockSetup
mock() {
this.describe = new DescribeBean("JSONUtil", "JSON工具类");
}
aboutToAppear(): void {
ResUtil.getRawFileContentStr('data_utils.json').then((result) => {
this.arrayStr = result;
})
}
onBackPress(): boolean {
return false;
}
build() {
Column() {
TitleBarView({ describe: this.describe })
Divider()
Scroll(this.scroller) {
Column() {
Button("jsonToBean()")
.btnStyle()
.onClick(() => {
let user = JSONUtil.jsonToBean(this.objStr, User);
LogUtil.error(`${user instanceof User}`);
LogUtil.error(`${user?.name} - ${user?.age} - ${user?.addr} - ${user?.work} - ${user?.salary} - ${user?.id}`)
user?.say("麻辣豆腐！");
ToastUtil.showToast("请查看Log日志");
})
Button("beanToJsonStr()")
.btnStyle()
.onClick(() => {
let user: User = new User();
let str = JSONUtil.beanToJsonStr(user);
LogUtil.error(`JSON字符串： ${str}`)
ToastUtil.showToast("请查看Log日志")
})
Button("jsonToArray()")
.btnStyle()
.onClick(() => {
ResUtil.getRawFileContentStrSync('data_utils.json')
let array = JSONUtil.jsonToArray<DescribeBean>(this.arrayStr);
array.forEach((item, index) => {
LogUtil.error(`${index} - ${JSON.stringify(item)}`)
})
ToastUtil.showToast("请查看Log日志");
})
Button("jsonToMap()")
.btnStyle()
.onClick(() => {
let map = JSONUtil.jsonToMap(this.mapStr);
map.forEach((value, key) => {
LogUtil.error(`${key} - ${value}`);
})
ToastUtil.showToast("请查看Log日志");
})
Button("mapToJsonStr()")
.btnStyle()
.onClick(() => {
let map = JSONUtil.jsonToMap(this.mapStr);
let JsonStr = JSONUtil.mapToJsonStr(map);
LogUtil.error("JsonStr: " + JsonStr);
ToastUtil.showToast("请查看Log日志");
})
Button("isJSONStr()")
.btnStyle()
.onClick(() => {
let b1 = JSONUtil.isJSONStr(this.objStr);
let b2 = JSONUtil.isJSONStr(this.arrayStr);
let b3 = JSONUtil.isJSONStr(this.mapStr);
let b4 = JSONUtil.isJSONStr("abcd1234");
LogUtil.error(`b1: ${b1}\nb2: ${b2}\nb3: ${b3}\nb4: ${b4}`)
ToastUtil.showToast("请查看Log日志")
})
Blank().layoutWeight(1)
}
.margin({ top: 5, bottom: 5 })
}
.layoutWeight(1)
}
.width('100%')
.height('100%')
.justifyContent(FlexAlign.Start)
.backgroundColor($r('app.color.main_background'))
}
}
@Styles
function btnStyle() {
.width('90%')
.margin({ top: 10, bottom: 5 })
}原创声明：本文系作者授权腾讯云开发者社区发表，未经许可，不得转载。
如有侵权，请联系 cloudcommunity@tencent.com 删除。
原创声明：本文系作者授权腾讯云开发者社区发表，未经许可，不得转载。
如有侵权，请联系 cloudcommunity@tencent.com 删除。
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