HARMONYOS网络编程（ARKTS语言版·微课视频版）

本书精心设计，融合了网络协议理论的深度解析、HarmonyOS API的详尽探讨及丰富的实际开发案例，旨在全面剖析HarmonyOS网络编程的核心要点与挑战。全书共10章，全面解析HarmonyOS平台下的网络编程技术，从底层的TCP、UDP、HTTP到高级特性的RCP模块和ArkWeb组件，内容循序渐进、深入浅出。每章配有丰富的示例代码与详尽的开发指南，帮助读者快速掌握网络应用的设计与实现，构建高效稳定的网络应用。本书面向有一定ArkTS语言基础的开发者，以及对HarmonyOS网络编程感兴趣的开发者，还可作为高等院校计算机相关课程的教材或参考书。

张磊，华为开发者专家(HDE)、华为云开发者专家(HCDE)、官方认证首批鸿蒙极客，仓颉语言社区卓越贡献者，著有《仓颉语言网络编程》《仓颉语言元编程》《仓颉语言实战》《鲲鹏架构入门与实战》《鲲鹏开发套件应用快速入门》等图书，研究方向聚焦在基础软件领域的自主可控和国产替代。

第 1章 TCP通信(

38min)·································································································1

1.1 TCP简介·················································································································· 1

1.1.1 报文格式 ······································································································ 1

1.1.2 三次握手 ······································································································ 3

1.1.3 滑动窗口机制 ······························································································· 4

1.2 TCP API····················································································································7

1.2.1 NetAddress ··································································································· 7

1.2.2 TCPConnectOptions ····················································································· 7

1.2.3 TCPSendOptions··························································································· 8

1.2.4 SocketRemoteInfo························································································· 8

1.2.5 SocketMessageInfo ······················································································· 8

1.2.6 SocketStateBase ···························································································· 8

1.2.7 TCPSocket ···································································································· 9

1.2.8 TCPSocketServer ························································································ 10

1.2.9 TCPSocketConnection ················································································ 11

1.3 TCP通信示例 ········································································································ 12

1.3.1 TCP客户端 ································································································ 12

1.3.2 TCP客户端连接超时················································································· 17

1.3.3 邮件发送客户端 ························································································· 23

1.3.4 长时任务处理模块 ····················································································· 33

1.3.5 TCP回声服务器 ························································································ 35

第 2章通信粘包 (

26min)································································································ 40

2.1粘包的表现 ············································································································ 40

2.2 TCP粘包原因分析 ································································································ 44

2.3 TCP粘包问题解决方案 ························································································· 46

2.3.1 指定数据包结束标志 ················································································· 46

2.3.2 固定包头 +可变包体结构··········································································· 52



第 3章 UDP通信(

16min)······························································································· 59

3.1 UDP简介 ··············································································································· 59

3.2 UDP API ················································································································· 60

3.2.1 UDPSendOptions ························································································ 60

3.2.2 UDPSocket·································································································· 60

3.3 UDP通信示例 ······································································································· 61

3.3.1 UDP客户端 ······························································································· 61

3.3.2 UDP回声服务器························································································ 66

第 4章安全通信 (

36min)································································································ 71

4.1安全通信的演化 ···································································································· 71

4.1.1 明文通信 ···································································································· 71

4.1.2 对称加密通信 ····························································································· 72

4.1.3 非对称加密通信 ························································································· 73

4.1.4 基于数字证书的非对称加密通信 ····························································· 75

4.2 TLS协议简介 ········································································································ 76

4.3 TLS安全通信 API ································································································· 77

4.3.1 Protocol······································································································· 77

4.3.2 TLSSecureOptions ······················································································ 77

4.3.3 TLSConnectOptions···················································································· 78

4.3.4 TLSSocket ·································································································· 78

4.3.5 TLSSocketServer ························································································ 80

4.3.6 TLSSocketConnection ················································································ 81

4.4签发自签名数字证书 ····························································································· 82

4.4.1 签发简介 ···································································································· 82

4.4.2 签发步骤 ···································································································· 82

4.5数字证书相关 API ································································································· 89

4.5.1 EncodingFormat·························································································· 89

4.5.2 EncodingBlob ····························································································· 90

4.5.3 CertItemType ······························································································ 90

4.5.4 X500DistinguishedName ············································································ 90

4.5.5 X509Cert····································································································· 90

4.6安全通信示例 ········································································································ 92

4.6.1 文件处理模块 ····························································································· 92

4.6.2 数字证书验签 ····························································································· 96





目录 VII

4.6.3 TLS回声服务器······················································································· 103

4.6.4 TLS客户端 ······························································································ 109

第 5章 HTTP数据请求(

43min) ·················································································· 118

5.1 HTTP简介 ··········································································································· 118

5.1.1 HTTP抽象消息结构················································································ 118

5.1.2 HTTP/1.1的消息结构 ·············································································· 119

5.1.3 请求方法 ·································································································· 121

5.1.4 状态码 ······································································································ 122

5.1.5 首部字段 ·································································································· 125

5.2最简单的 HTTP服务器······················································································· 127

5.3 HTTP数据请求 API ···························································································· 133

5.3.1 RequestMethod ························································································· 133

5.3.2 ResponseCode··························································································· 133

5.3.3 HttpProtocol······························································································ 134

5.3.4 HttpDataType···························································································· 135

5.3.5 MultiFormData ························································································· 135

5.3.6 CertType ··································································································· 135

5.3.7 ClientCert·································································································· 136

5.3.8 HttpRequestOptions ·················································································· 136

5.3.9 HttpResponse ···························································································· 138

5.3.10 http.createHttp························································································· 139

5.3.11 HttpRequest····························································································· 139

5.4 HTTP数据请求示例···························································································· 141

5.4.1 模拟登录 ·································································································· 141

5.4.2 登录后下载文件并预览 ··········································································· 146

5.4.3 上传文件 ·································································································· 154

5.4.4 服务器端证书 CA校验方式···································································· 159

5.4.5 服务器端证书锁定防范中间人攻击 ························································ 164

5.4.6 流式响应下载文件并预览 ······································································· 173

第 6章上传下载部件 (

20min) ······················································································ 180

6.1分块下载的协议支持 ··························································································· 181

6.1.1 分块下载的需求 ······················································································· 181

6.1.2 HTTP支持 ······························································································· 182



6.2分类任务 API······································································································· 183

6.2.1 RequestData······························································································ 183

6.2.2 File············································································································ 183

6.2.3 UploadConfig···························································································· 183

6.2.4 TaskState··································································································· 184

6.2.5 request.uploadFile ····················································································· 184

6.2.6 UploadTask ······························································································· 184

6.2.7 DownloadConfig······················································································· 185

6.2.8 request.downloadFile ················································································ 186

6.2.9 DownloadTask ·························································································· 186

6.2.10 DownloadInfo ························································································· 187

6.3分类任务示例 ······································································································ 188

6.3.1 上传文件 ·································································································· 188

6.3.2 下载文件 ·································································································· 192

6.4统一任务 API······································································································· 198

6.4.1 Action ······································································································· 198

6.4.2 Network ···································································································· 198

6.4.3 Mode········································································································· 198

6.4.4 FileSpec ···································································································· 199

6.4.5 FormItem ·································································································· 199

6.4.6 Config ······································································································· 199

6.4.7 State ·········································································································· 201

6.4.8 Progress ···································································································· 202

6.4.9 Task··········································································································· 202

6.4.10统一任务处理函数 ················································································· 204

6.5统一任务示例 ······································································································ 205

6.5.1 多文件上传 ······························································································ 205

6.5.2 单文件多任务分块下载 ··········································································· 210

第 7章 RCP模块(

15min)····························································································· 219

7.1 RCP模块简介 ······································································································ 219

7.2 RCP模块 API ······································································································ 219

7.2.1 Request ····································································································· 219

7.2.2 Interceptor································································································· 220

7.2.3 RequestContext ························································································· 220





目录 IX

7.2.4 SecurityConfiguration ··············································································· 221

7.2.5 TransferConfiguration ··············································································· 221

7.2.6 Configuration ···························································································· 222

7.2.7 SessionConfiguration ················································································ 222

7.2.8 rcp.createSession······················································································· 223

7.2.9 Session ······································································································ 223

7.3 RCP模块示例 ······································································································ 225

7.3.1 使用 RCP调用 OpenAI接口实现智能助手 ··········································· 225

7.3.2 基于拦截器的性能监控 ··········································································· 232

7.3.3 下载文件并预览示例 ··············································································· 238

7.3.4 服务器端证书的 4种校验方式 ······························································· 243

7.3.5 断点续传下载文件 ··················································································· 250

第 8章 ArkWeb (

18min) ······························································································ 258

8.1 ArkWeb简介········································································································ 258

8.1.1 App内嵌网页简介··················································································· 258

8.1.2 ArkWeb简介 ···························································································· 258

8.2 ArkWeb API·········································································································· 259

8.2.1 WebOptions······························································································· 259

8.2.2 Web··········································································································· 260

8.2.3 WebDownloadItem···················································································· 261

8.2.4 WebDownloadDelegate············································································· 262

8.2.5 WebviewController ··················································································· 262

8.3 ArkWeb API示例································································································· 263

8.3.1 加载网页的 4种方式 ··············································································· 263

8.3.2 文件上传 ·································································································· 270

8.3.3 文件下载 ·································································································· 275

8.3.4 Web组件与应用互操作··········································································· 280

8.3.5 Web组件打印 ·························································································· 287

第 9章 WebSocket (

10min)·························································································· 292

9.1 WebSocket简介 ··································································································· 292

9.2 WebSocket API ····································································································· 292

9.2.1 webSocket.createWebSocket····································································· 293

9.2.2 WebSocketRequestOptions ······································································· 293



9.2.3 WebSocketCloseOptions ··········································································· 294

9.2.4 WebSocket ································································································ 294

9.3 WebSocket示例 ··································································································· 296

第 10章 WLAN网络 (

8min) ······················································································· 301

10.1 WLAN网络简介································································································ 301

10.2 WLAN API ········································································································· 301

10.2.1 WifiSecurityType ·················································································· 301

10.2.2 WifiStandard ························································································· 302

10.2.3 WifiScanInfo ························································································· 303

10.2.4 WifiLinkedInfo······················································································ 304

10.2.5 IpInfo ···································································································· 306

10.2.6 Ipv6Info ································································································ 306

10.2.7 WifiDeviceConfig ················································································· 307

10.2.8 wifiManager的函数 ············································································· 307

10.2.9 wifiManager的事件 ············································································· 309

10.3 WLAN示例 ······································································································· 311

10.3.1 WiFi信息获取······················································································ 311

10.3.2 WiFi热点扫描及连接 ·········································································· 315