EntryAbility 全局初始化 + 网络请求 HttpUtil 完整源码

一、EntryAbility 全局统一初始化项目启动唯一入口etsimport UIAbility from ohos.app.ability.UIAbility; import hilog from ohos.hilog; import GlobalStore from ohos:har_base/utils/store; import FileUtil from ohos:har_base/utils/file_util; import LogUtil, { LogLevel } from ohos:har_base/utils/log_util; import HttpUtil from ohos:har_base/utils/http_util; export default class EntryAbility extends UIAbility { onCreate(want, launchParam) { hilog.info(0x0001, APP_LIFE, 应用启动 onCreate); const context this.context; // 1. 给所有底层工具注入上下文 FileUtil.setContext(context); LogUtil.setContext(context); GlobalStore.setContext(context); // 2. 生产环境关闭调试日志 LogUtil.setLogLevel(LogLevel.INFO); // 3. 初始化持久化全局状态 GlobalStore.initPersistent(); // 4. 初始化网络全局配置基础域名、超时时间 HttpUtil.initBaseConfig({ baseUrl: https://api.test.com, timeout: 10000 }); LogUtil.info(EntryAbility, 全局工具初始化完成); } onForeground() { LogUtil.info(APP_LIFE, 应用切前台); } onBackground() { LogUtil.info(APP_LIFE, 应用切后台中断所有未完成网络请求); HttpUtil.abortAllRequest(); } onDestroy() { LogUtil.info(APP_LIFE, 应用销毁释放全部资源); } }二、HttpUtil 网络请求封装har_base 核心工具etsimport http from ohos.net.http; import LogUtil from ./log_util; import GlobalStore from ./store; import DialogUtil from ./dialog_util; // 全局网络基础配置 interface HttpBaseConfig { baseUrl: string; timeout: number; } // 通用响应结构 interface HttpResponseT { code: number; msg: string; data: T; } class HttpUtil { private baseConfig: HttpBaseConfig { baseUrl: , timeout: 10000 }; // 保存所有请求任务页面销毁统一中断 private requestTaskList: http.HttpRequest[] []; initBaseConfig(config: HttpBaseConfig) { this.baseConfig config; } // 生成统一请求头自动携带token private getCommonHeader(): Recordstring, string { const token GlobalStore.getstring(token); return { Content-Type: application/json;charsetutf-8, token: token }; } // 中断全部网络请求 abortAllRequest() { this.requestTaskList.forEach(task { try { task.destroy(); } catch (e) { LogUtil.warn(HttpUtil, 请求销毁异常, e); } }); this.requestTaskList []; } // 统一请求核心方法 private async requestT( url: string, method: http.RequestMethod, data?: Object ): PromiseHttpResponseT | null { // 拼接完整接口地址 let fullUrl url.startsWith(http) ? url : ${this.baseConfig.baseUrl}${url}; const httpRequest http.createHttp(); this.requestTaskList.push(httpRequest); try { DialogUtil.showLoading(); LogUtil.debug(HttpUtil, 发起${method}请求:, fullUrl, data); const res await httpRequest.request(fullUrl, { method: method, header: this.getCommonHeader(), extraData: data ? JSON.stringify(data) : undefined, connectTimeout: this.baseConfig.timeout, readTimeout: this.baseConfig.timeout }); DialogUtil.hideLoading(); const result JSON.parse(res.result.toString()) as HttpResponseT; LogUtil.debug(HttpUtil, 接口返回数据, result); // 登录失效清空登录状态跳转登录页 if (result.code 401) { LogUtil.warn(HttpUtil, token失效退出登录); GlobalStore.logout(); DialogUtil.alert({ content: 登录已过期请重新登录 }); } return result; } catch (err) { DialogUtil.hideLoading(); LogUtil.error(HttpUtil, 网络请求异常, err); DialogUtil.alert({ content: 网络请求失败请检查网络 }); return null; } } // GET 请求 getT(url: string, params?: Object): PromiseHttpResponseT | null { return this.requestT(url, http.RequestMethod.GET, params); } // POST 请求 postT(url: string, data?: Object): PromiseHttpResponseT | null { return this.requestT(url, http.RequestMethod.POST, data); } } export default new HttpUtil();三、全局弹窗工具 DialogUtilhar_base 配套工具etsimport customDialog from ohos.arkui.component.customDialog; import LogUtil from ./log_util; // 弹窗基础参数 interface AlertOpt { content: string; confirmText?: string; cancelText?: string; onConfirm?: () void; onCancel?: () void; } class DialogUtil { private dialogControllerList: customDialog.CustomDialogController[] []; // 普通提示弹窗仅确认按钮 alert(opt: AlertOpt) { const controller customDialog.show({ builder: () { Column({ space: 16 }) { Text(opt.content).fontSize(16).textAlign(TextAlign.Center) Button(opt.confirmText ?? 确定) .width(100%) .height(44) .onClick(() { controller.close(); opt.onConfirm?.(); }) } .width(90%) .padding(20) .borderRadius(12) } }); this.dialogControllerList.push(controller); } // 确认弹窗确认取消 confirm(opt: AlertOpt) { const controller customDialog.show({ builder: () { Column({ space: 16 }) { Text(opt.content).fontSize(16).textAlign(TextAlign.Center) Row({ space: 12 }) { Button(opt.cancelText ?? 取消) .layoutWeight(1) .backgroundColor(#cccccc) .onClick(() { controller.close(); opt.onCancel?.(); }) Button(opt.confirmText ?? 确认) .layoutWeight(1) .backgroundColor(#007DFF) .onClick(() { controller.close(); opt.onConfirm?.(); }) } } .width(90%) .padding(20) .borderRadius(12) } }); this.dialogControllerList.push(controller); } // 全局加载弹窗 showLoading() { const controller customDialog.show({ builder: () { Column({ space: 12 }) { Text(⟳).fontSize(32) Text(加载中...).fontSize(14) } .width(120) .height(120) .borderRadius(12) .backgroundColor(#ffffff) }, mask: true }); this.dialogControllerList.push(controller); } hideLoading() { if (this.dialogControllerList.length 0) { const last this.dialogControllerList.pop(); last?.close(); } } // 页面销毁关闭全部弹窗防止遮罩残留 closeAllDialog() { this.dialogControllerList.forEach(ctrl { try { ctrl.close(); } catch (e) { LogUtil.warn(DialogUtil, 弹窗关闭异常, e); } }); this.dialogControllerList []; } } export default new DialogUtil();四、页面标准生命周期规范示例列表页面完整模板etsimport StateView, { PageState } from ohos:har_base/components/common/StateView; import RefreshListView from ohos:har_base/components/common/RefreshListView; import DialogUtil from ohos:har_base/utils/dialog_util; import LogUtil from ohos:har_base/utils/log_util; import ThemeUtil from ohos:har_base/utils/theme; import { Note } from ohos:har_note/model/Note; import NoteDb from ohos:har_note/db/NoteRdb; // 分页结构复用 interface PageInfo { pageIndex: number; pageSize: number; isNoMore: boolean; } Entry Component struct NoteListPage { State pageState: PageState PageState.LOADING; State noteList: Note[] []; State page: PageInfo { pageIndex: 0, pageSize: 10, isNoMore: false }; async aboutToAppear() { await this.loadListData(true); } // 加载列表isRefreshtrue代表下拉刷新重置页码 async loadListData(isRefresh: boolean) { if (isRefresh) { this.page.pageIndex 0; this.page.isNoMore false; } this.pageState PageState.LOADING; try { const res await NoteDb.queryList(this.page.pageIndex, this.page.pageSize); if (isRefresh) { this.noteList res; } else { this.noteList [...this.noteList, ...res]; } if (this.noteList.length 0) { this.pageState PageState.EMPTY; } else { this.pageState PageState.CONTENT; if (res.length this.page.pageSize) { this.page.isNoMore true; } else if (!isRefresh) { this.page.pageIndex 1; } } } catch (err) { LogUtil.error(NoteList, 数据库查询失败, err); this.pageState PageState.ERROR; } } // 页面销毁统一释放资源强制规范 aboutToDisappear() { DialogUtil.closeAllDialog(); NoteDb.closeDb(); LogUtil.debug(NoteList, 页面销毁资源全部释放); } build() { const color ThemeUtil.getColor(); const size ThemeUtil.getSize(); Column() .width(100%) .height(100%) .padding(size.gapMd) .backgroundColor(color.pageBg) { Text(我的笔记) .fontSize(size.fontTitle) .fontColor(color.textPrimary) .margin({ bottom: size.gapLg }) StateView({ state: this.pageState, onRetry: () this.loadListData(true) }) { RefreshListView({ list: this.noteList, page: this.page, onRefresh: () this.loadListData(true), onLoadMore: () this.loadListData(false) }) { (item: Note) { Row() .width(100%) .padding(size.gapMd) .borderRadius(size.radiusMd) .backgroundColor(color.cardBg) { Column().layoutWeight(1) { Text(item.title) .fontSize(size.fontMain) .fontColor(color.textPrimary) Text(item.content) .fontSize(size.fontAux) .fontColor(color.textSecondary) .margin({ top: size.gapXs }) } Button(删除) .height(size.btnNormal) .backgroundColor(color.danger) .borderRadius(size.radiusSm) .onClick(() { DialogUtil.confirm({ content: 确定删除这条笔记, onConfirm: async () { await NoteDb.deleteById(item.id); await this.loadListData(true); } }) }) } } } } } } }文末补充干货CSDN 专属完整工程 module.json5 依赖配置模板har_base 无依赖jsondependencies: []业务 HAR har_note 仅依赖基础库jsondependencies: [ { name: har_base, version: 1.0.0, scope: shared } ]HSP 分包依赖基础 HAR 对应业务 HARjsondependencies: [ {name:har_base,version:1.0.0,scope:shared}, {name:har_note,version:1.0.0,scope:shared} ]entry 主模块依赖所有 HAR、HSPjsondependencies: [ {name:har_base,version:1.0.0,scope:shared}, {name:har_note,version:1.0.0,scope:shared}, {name:har_user,version:1.0.0,scope:shared}, {name:hsp_note_editor,version:1.0.0,scope:shared} ]开发规范强制总结收藏备查所有页面aboutToDisappear三件事关闭全部弹窗、释放数据库、中断网络请求所有颜色、间距、字号禁止硬编码统一读取 ThemeUtil网络请求全部使用 HttpUtil自带 Loading、token 自动携带、401 登出处理列表统一使用 RefreshListView内置下拉、上拉、防重复请求锁页面状态统一用 StateView统一加载 / 空 / 错误兜底 UI全局配置、登录、深色模式全部通过 GlobalStore 管理持久化自动落盘日志统一调用 LogUtil自动脱敏敏感信息生产环境关闭调试打印模块单向依赖禁止业务 HAR 互相引用杜绝循环依赖编译报错。