import util from '@ohos.util';
import { ArrayList, HashMap, JSON, List } from '@kit.ArkTS';
import { BusinessError } from '@kit.BasicServicesKit';// 定义通用单个联合类型
export type CommonSingleType = Object | string | number | boolean | null | undefined;// 定义通用所有联合类型
export type CommonAllType =| CommonSingleType| Array<CommonSingleType>| ArrayList<CommonSingleType>| HashMap<CommonSingleType, CommonSingleType>;// 定义构造函数类型
export type Constructor<T> = new (...args: any[]) => T;/*** 对象工具类*/
export class ObjectUtil {/*** 获取对象的Hash值。如果是第一次获取，则计算Hash值并保存到对象的Hash域（返回随机的Hash值）；如果不是第一次获取，则从Hash域中获取并返回Hash值（同一对象多次返回值保持不变）。* @param object - 目标对象* @returns Hash值*/static getHash(object: Object): number {return util.getHash(object);}/*** 获取对象的Class名称* @param obj - 目标对象* @returns Class名称*/static getClassName(obj: Object): string {return obj.constructor.name;}/*** 获取对象的所有方法名* @param obj - 目标对象* @returns 方法名数组*/static getMethodsNames(obj: Object): string[] {const prototype = Object.getPrototypeOf(obj);return Object.getOwnPropertyNames(prototype).filter((key) => typeof Reflect.get(prototype, key) === 'function' && key !== 'constructor');}/*** 判断是否是String* @param source - 输入值* @returns 是否为字符串*/static isString(source: unknown): boolean {return typeof source === 'string' || source instanceof String;}/*** 判断对象是否为空* @param source - 输入值* @returns 是否为空*/static isNull(source: CommonAllType): boolean {return source === null || source === undefined;}/*** 判断属性内容是否为空* @param property - 输入值* @returns 是否为空*/static isEmpty(property: CommonAllType): boolean {if (this.isNull(property)) {return true;}if (Array.isArray(property) || property instanceof ArrayList) {return property.length === 0;}if (property instanceof HashMap) {return property.isEmpty();}return property === '';}/*** 浅拷贝* @param obj - 被拷贝对象* @returns 拷贝后的对象*/static shallowCopy<T extends Record<string, any>>(obj: T): T {return { ...obj };}/*** 深度拷贝* @param obj - 被拷贝对象* @returns 深拷贝后的对象*/static deepCopy<T>(obj: T): T {if (typeof obj !== 'object' || obj === null) {return obj; // 非对象或null直接返回}if (Array.isArray(obj)) {return obj.map((item) => this.deepCopy(item)) as unknown as T;}const newObj: Record<string, any> = {};for (const key in obj) {if (Reflect.has(obj, key)) {newObj[key] = this.deepCopy(Reflect.get(obj, key));}}return newObj as T;}/*** 合并两个或多个对象* @param target - 目标对象* @param sources - 源对象数组* @returns 合并后的对象*/static assign(target: Record<string, any>, ...sources: Record<string, any>[]): Record<string, any> {for (const source of sources) {for (const key of Object.keys(source)) {target[key] = Reflect.get(source, key);}}return target;}/*** 将普通对象转换为类实例* @param clazz - 类构造函数* @param obj - 普通对象* @returns 类实例*/static objToClass<T>(clazz: Constructor<T>, obj: Record<string, any>): T {const instance = new clazz();return Object.assign(instance, obj);}/*** 删除Record中的元素* @param record - Record对象* @param key - 键*/static deleteRecord(record: Record<string, any>, key: string): void {Reflect.deleteProperty(record, key);}/*** 通过key获取对象值* @param obj - 目标对象* @param key - 键* @returns 值*/static getValue<T = unknown>(obj: Record<string, any>, key: string): T {return Reflect.get(obj, key) as T;}/*** 给对象动态添加或修改属性* @param obj - 目标对象* @param key - 键* @param value - 值*/static setValue<T>(obj: Record<string, any>, key: string, value: T): void {Reflect.set(obj, key, value);}/*** 获取Error的JSON字符串* @param error - 错误对象* @returns JSON字符串*/static getErrorStr(error: BusinessError): string {const errObj: Record<string, string | number> = {name: error.name,code: error.code,message: error.message,stack: error.stack ?? '',};return JSON.stringify(errObj);}
}
代码如下：
import util from '@ohos.util';
import { ArrayList, HashMap, JSON, List } from '@kit.ArkTS';
import { BusinessError } from '@kit.BasicServicesKit';// 定义通用单个联合类型
export type CommonSingleType = Object | string | number | boolean | null | undefined;// 定义通用所有联合类型
export type CommonAllType =| CommonSingleType| Array<CommonSingleType>| ArrayList<CommonSingleType>| HashMap<CommonSingleType, CommonSingleType>;// 定义构造函数类型
export type Constructor<T> = new (...args: any[]) => T;/*** 对象工具类*/
export class ObjectUtil {/*** 获取对象的Hash值。如果是第一次获取，则计算Hash值并保存到对象的Hash域（返回随机的Hash值）；如果不是第一次获取，则从Hash域中获取并返回Hash值（同一对象多次返回值保持不变）。* @param object - 目标对象* @returns Hash值*/static getHash(object: Object): number {return util.getHash(object);}/*** 获取对象的Class名称* @param obj - 目标对象* @returns Class名称*/static getClassName(obj: Object): string {return obj.constructor.name;}/*** 获取对象的所有方法名* @param obj - 目标对象* @returns 方法名数组*/static getMethodsNames(obj: Object): string[] {const prototype = Object.getPrototypeOf(obj);return Object.getOwnPropertyNames(prototype).filter((key) => typeof Reflect.get(prototype, key) === 'function' && key !== 'constructor');}/*** 判断是否是String* @param source - 输入值* @returns 是否为字符串*/static isString(source: unknown): boolean {return typeof source === 'string' || source instanceof String;}/*** 判断对象是否为空* @param source - 输入值* @returns 是否为空*/static isNull(source: CommonAllType): boolean {return source === null || source === undefined;}/*** 判断属性内容是否为空* @param property - 输入值* @returns 是否为空*/static isEmpty(property: CommonAllType): boolean {if (this.isNull(property)) {return true;}if (Array.isArray(property) || property instanceof ArrayList) {return property.length === 0;}if (property instanceof HashMap) {return property.isEmpty();}return property === '';}/*** 浅拷贝* @param obj - 被拷贝对象* @returns 拷贝后的对象*/static shallowCopy<T extends Record<string, any>>(obj: T): T {return { ...obj };}/*** 深度拷贝* @param obj - 被拷贝对象* @returns 深拷贝后的对象*/static deepCopy<T>(obj: T): T {if (typeof obj !== 'object' || obj === null) {return obj; // 非对象或null直接返回}if (Array.isArray(obj)) {return obj.map((item) => this.deepCopy(item)) as unknown as T;}const newObj: Record<string, any> = {};for (const key in obj) {if (Reflect.has(obj, key)) {newObj[key] = this.deepCopy(Reflect.get(obj, key));}}return newObj as T;}/*** 合并两个或多个对象* @param target - 目标对象* @param sources - 源对象数组* @returns 合并后的对象*/static assign(target: Record<string, any>, ...sources: Record<string, any>[]): Record<string, any> {for (const source of sources) {for (const key of Object.keys(source)) {target[key] = Reflect.get(source, key);}}return target;}/*** 将普通对象转换为类实例* @param clazz - 类构造函数* @param obj - 普通对象* @returns 类实例*/static objToClass<T>(clazz: Constructor<T>, obj: Record<string, any>): T {const instance = new clazz();return Object.assign(instance, obj);}/*** 删除Record中的元素* @param record - Record对象* @param key - 键*/static deleteRecord(record: Record<string, any>, key: string): void {Reflect.deleteProperty(record, key);}/*** 通过key获取对象值* @param obj - 目标对象* @param key - 键* @returns 值*/static getValue<T = unknown>(obj: Record<string, any>, key: string): T {return Reflect.get(obj, key) as T;}/*** 给对象动态添加或修改属性* @param obj - 目标对象* @param key - 键* @param value - 值*/static setValue<T>(obj: Record<string, any>, key: string, value: T): void {Reflect.set(obj, key, value);}/*** 获取Error的JSON字符串* @param error - 错误对象* @returns JSON字符串*/static getErrorStr(error: BusinessError): string {const errObj: Record<string, string | number> = {name: error.name,code: error.code,message: error.message,stack: error.stack ?? '',};return JSON.stringify(errObj);}
}
