{"id":76634,"date":"2026-02-22T23:21:53","date_gmt":"2026-02-22T15:21:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/76634.html"},"modified":"2026-02-22T23:21:53","modified_gmt":"2026-02-22T15:21:53","slug":"flutter-for-openharmony-flutter-%e4%b8%89%e6%96%b9%e5%ba%93-mongo_dart-%e5%8a%a9%e5%8a%9b%e9%b8%bf%e8%92%99%e5%ba%94%e7%94%a8%e7%9b%b4%e8%bf%9e-nosql-%e6%95%b0%e6%8d%ae%e5%ba%93%e6%9e%84%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/76634.html","title":{"rendered":"Flutter for OpenHarmony: Flutter \u4e09\u65b9\u5e93 mongo_dart \u52a9\u529b\u9e3f\u8499\u5e94\u7528\u76f4\u8fde NoSQL \u6570\u636e\u5e93\u6784\u5efa\u9ad8\u6548\u7684\u6570\u636e\u6d41\u8f6c\u7cfb\u7edf\uff08\u7eaf Dart \u9a71\u52a8\u65b9\u6848\uff09"},"content":{"rendered":"

\u6b22\u8fce\u52a0\u5165\u5f00\u6e90\u9e3f\u8499\u8de8\u5e73\u53f0\u793e\u533a：https:\/\/openharmonycrossplatform.csdn.net<\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u524d\u8a00<\/h3>\n

\u5728\u8fdb\u884c OpenHarmony \u7684\u5de5\u4e1a\u5de1\u68c0\u3001\u5185\u90e8\u7ba1\u7406\u7cfb\u7edf\u6216\u8fb9\u7f18\u8ba1\u7b97（Edge Computing）\u5e94\u7528\u5f00\u53d1\u65f6，\u6709\u65f6\u6211\u4eec\u9700\u8981\u9e3f\u8499\u524d\u7aef\u5e94\u7528\u76f4\u63a5\u4e0e\u540e\u7aef\u7684 MongoDB \u6570\u636e\u5e93\u8fdb\u884c\u4ea4\u4e92，\u800c\u4e0d\u4ec5\u4ec5\u662f\u901a\u8fc7\u4f20\u7edf\u7684 Web API \u8f6c\u53d1\u3002<\/p>\n

mongo_dart \u662f\u4e00\u4e2a\u6781\u5176\u5f3a\u5927\u7684\u3001\u5168\u529f\u80fd\u3001\u7eaf Dart \u5b9e\u73b0\u7684 MongoDB \u9a71\u52a8\u7a0b\u5e8f\u3002\u5b83\u4e0d\u4f9d\u8d56\u4efb\u4f55\u539f\u751f\u5e95\u5c42\u9a71\u52a8（\u5982 C \u9a71\u52a8），\u901a\u8fc7 Dart \u7684 Socket \u673a\u5236\u76f4\u63a5\u5b9e\u73b0 BSON \u534f\u8bae\u5c01\u88c5\u3002\u8fd9\u610f\u5473\u7740\u4f60\u5728\u9e3f\u8499\u8bbe\u5907\u4e0a\u65e0\u9700\u914d\u7f6e\u590d\u6742\u7684 NDK \u52a8\u6001\u5e93，\u5373\u53ef\u62e5\u6709\u8fde\u63a5\u3001\u67e5\u8be2\u3001\u751a\u81f3\u662f\u5b9e\u65f6\u805a\u5408\u5206\u6790 MongoDB \u6570\u636e\u7684\u80fd\u529b\u3002<\/p>\n

\n

\u4e00\u3001\u7f51\u7edc\u76f4\u8fde\u67b6\u6784\u6a21\u578b<\/h3>\n

\u8be5\u9a71\u52a8\u5728\u9e3f\u8499\u8bbe\u5907\u4e0e\u8fdc\u7a0b\u6570\u636e\u5e93\u95f4\u5efa\u7acb\u4e86\u900f\u660e\u7684\u4e8c\u8fdb\u5236\u901a\u8baf\u96a7\u9053\u3002<\/p>\n

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<\/span><\/p>\n

<\/p>\n

BSON \u5e8f\u5217\u5316\u6570\u636e<\/p>\n

<\/span><\/p>\n

<\/span><\/p>\n

<\/p>\n

\u9e3f\u8499 App (mongo_dart)<\/p>\n

<\/span><\/p>\n

<\/p>\n

Dart TCP Socket<\/p>\n

<\/span><\/p>\n

<\/p>\n

\u9274\u6743 (SCRAM\/MD5)<\/p>\n

<\/span><\/p>\n

<\/p>\n

\u8fdc\u7a0b MongoDB \u670d\u52a1<\/p>\n

<\/span><\/p>\n

\n

\u4e8c\u3001\u6838\u5fc3 API \u5b9e\u6218<\/h3>\n

2.1 \u5efa\u7acb\u8fde\u63a5\u5e76\u83b7\u53d6\u96c6\u5408<\/h4>\n

import<\/span> 'package:mongo_dart\/mongo_dart.dart'<\/span><\/span>;<\/span><\/p>\n

void<\/span> connectToDb<\/span>(<\/span>)<\/span> async<\/span> {<\/span>
\n \/\/ 💡 \u5b9a\u4e49\u8fde\u63a5\u5b57\u7b26\u4e32（\u652f\u6301 Atlas \u4e91\u7aef）<\/span>
\n var<\/span> db =<\/span> await<\/span> Db<\/span>.<\/span>create<\/span>(<\/span>"mongodb:\/\/admin:pass@ohos.example.com:27017\/logs"<\/span><\/span>)<\/span>;<\/span>
\n await<\/span> db.<\/span>open<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

print<\/span>(<\/span>'\u2705 \u9e3f\u8499\u8bbe\u5907\u5df2\u6210\u529f\u63a5\u5165\u8fdc\u7a0b NoSQL \u96c6\u7fa4'<\/span><\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

2.2 \u6570\u636e\u67e5\u8be2\u4e0e\u63d2\u5165 (CRUD)<\/h4>\n

Future<\/span><<\/span>void<\/span>><\/span><\/span> logDeviceStatus<\/span>(<\/span>Db<\/span> db)<\/span> async<\/span> {<\/span>
\n var<\/span> collection =<\/span> db.<\/span>collection<\/span>(<\/span>'ohos_devices'<\/span><\/span>)<\/span>;<\/span><\/p>\n

\/\/ 💡 \u63d2\u5165\u4e00\u6761\u5e26\u5730\u7406\u4f4d\u7f6e\u4fe1\u606f\u7684 BSON \u6587\u6863<\/span>
\n await<\/span> collection.<\/span>insertOne<\/span>(<\/span>{<\/span>
\n 'device'<\/span><\/span>:<\/span> 'Huawei Mate 60'<\/span><\/span>,<\/span>
\n 'status'<\/span><\/span>:<\/span> 'Online'<\/span><\/span>,<\/span>
\n 'location'<\/span><\/span>:<\/span> [<\/span>114.05<\/span>,<\/span> 22.54<\/span>]<\/span>,<\/span>
\n 'timestamp'<\/span><\/span>:<\/span> DateTime<\/span>.<\/span>now<\/span>(<\/span>)<\/span>,<\/span>
\n }<\/span>)<\/span>;<\/span><\/p>\n

\/\/ 💡 \u590d\u6742\u6761\u4ef6\u67e5\u8be2<\/span>
\n var<\/span> activeDevices =<\/span> await<\/span> collection.<\/span>find<\/span>(<\/span>where.<\/span>eq<\/span>(<\/span>'status'<\/span><\/span>,<\/span> 'Online'<\/span><\/span>)<\/span>)<\/span>.<\/span>toList<\/span>(<\/span>)<\/span>;<\/span>
\n print<\/span>(<\/span>'\u5728\u7ebf\u9e3f\u8499\u8bbe\u5907\u6570\u91cf: <\/span>${<\/span>activeDevices.<\/span>length<\/span>}<\/span><\/span>'<\/span><\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\n

\u4e09\u3001\u5e38\u89c1\u5e94\u7528\u573a\u666f<\/h3>\n

3.1 \u9e3f\u8499\u8fb9\u7f18\u7f51\u5173\u6570\u636e\u6c47\u603b<\/h4>\n

\u5728\u5de5\u5382\u6216\u5b9e\u9a8c\u5ba4\u573a\u666f\u4e2d，\u9e3f\u8499\u8bbe\u5907\u4f5c\u4e3a\u4e2d\u63a7\u7f51\u5173，\u6536\u96c6\u5404\u4f20\u611f\u5668\u7684\u62a5\u6587\u540e，\u76f4\u63a5\u901a\u8fc7 mongo_dart \u4ee5\u9ad8\u5e76\u53d1\u5f02\u6b65\u6d41\u7684\u5f62\u5f0f\u5b58\u5165\u672c\u5730\u6216\u4e91\u7aef\u7684 MongoDB，\u514d\u53bb\u4e86\u4e2d\u95f4\u4ef6\u7684\u8f6c\u53d1\u8017\u65f6，\u5b9e\u73b0\u6570\u636e\u94fe\u8def\u7684\u6700\u77ed\u95ed\u73af\u3002<\/p>\n

3.2 \u9e3f\u8499\u5f00\u53d1\u8005\u81ea\u7814\u5de5\u5177\u540e\u53f0<\/h4>\n

\u5f53\u4f60\u6b63\u5728\u4e3a\u9e3f\u8499\u5e94\u7528\u7f16\u5199\u4e00\u4e2a\u6027\u80fd\u5206\u6790\u540e\u53f0\u65f6，\u5229\u7528 mongo_dart \u7684\u805a\u5408\u6846\u67b6（Aggregation Framework），\u53ef\u4ee5\u5728\u9e3f\u8499\u7aef\u4fa7\u76f4\u63a5\u4e0b\u53d1\u590d\u6742\u7684 match\u3001group \u6307\u4ee4，\u5229\u7528 MongoDB \u7684\u670d\u52a1\u5668\u7b97\u529b\u8fdb\u884c\u5927\u89c4\u6a21\u65e5\u5fd7\u5206\u6790，\u6781\u5927\u5730\u7cbe\u7b80\u4e86\u9e3f\u8499\u524d\u7aef\u7684\u903b\u8f91\u590d\u6742\u5ea6\u3002<\/p>\n

\n

\u56db\u3001OpenHarmony \u5e73\u53f0\u9002\u914d<\/h3>\n

4.1 \u9002\u914d\u9e3f\u8499\u7684\u7f51\u7edc\u6c99\u7bb1\u7b56\u7565<\/h4>\n

💡 \u6280\u5de7：\u9e3f\u8499 NEXT \u9ed8\u8ba4\u5173\u95ed\u767d\u540d\u5355\u5916\u7684 Socket \u8fde\u63a5\u3002\u5728 module.json5 \u4e2d\u786e\u4fdd\u5f00\u542f\u4e86\u7f51\u7edc\u8bbf\u95ee\u6743\u9650\u3002\u540c\u65f6，\u7531\u4e8e MongoDB \u7684\u957f\u8fde\u63a5\u7279\u6027，\u5efa\u8bae\u5728\u9e3f\u8499\u5e94\u7528\u7684 onHide() \u751f\u547d\u5468\u671f\u4e2d\u4e3b\u52a8\u901a\u8fc7 db.close() \u65ad\u5f00\u4e0d\u5fc5\u8981\u7684\u95f2\u7f6e\u8fde\u63a5\u3002\u8fd9\u4e0d\u4ec5\u80fd\u8282\u7701\u9e3f\u8499\u8bbe\u5907\u7684\u529f\u8017，\u8fd8\u80fd\u907f\u514d\u540e\u7aef\u8fde\u63a5\u6c60\u6ea2\u51fa，\u4fdd\u8bc1\u6574\u4e2a\u9e3f\u8499\u6d4b\u63a7\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n

4.2 \u5904\u7406\u5927\u6d41\u91cf\u7684\u6570\u636e\u5e8f\u5217\u5316<\/h4>\n

\u5728\u9e3f\u8499\u8bbe\u5907\u4e0a\u5904\u7406\u6570\u5343\u6761 BSON \u6587\u6863\u8f6c\u6362\u65f6，\u4f1a\u6d89\u53ca\u5927\u91cf\u7684\u5185\u5b58\u64cd\u4f5c\u3002mongo_dart \u7684\u7eaf Dart \u5b9e\u73b0\u7531\u4e8e\u7701\u53bb\u4e86\u8de8\u8bed\u8a00 FFI \u8c03\u7528\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u5f00\u9500，\u5728\u9e3f\u8499\u9e92\u9e9f\u5904\u7406\u5668\u7684 AOT \u6a21\u5f0f\u4e0b\u8868\u73b0\u5f02\u5e38\u51fa\u8272\u3002\u5efa\u8bae\u914d\u5408\u6d41（Stream）\u5f0f API \u8fdb\u884c\u6570\u636e\u52a0\u8f7d，\u901a\u8fc7 forEach \u8fb9\u6e32\u67d3\u8fb9\u5904\u7406，\u907f\u514d\u4e00\u6b21\u6027\u5728\u9e3f\u8499\u5185\u5b58\u4e2d\u5efa\u7acb\u8fc7\u5927\u7684 List \u5bf9\u8c61，\u4fdd\u969c\u5217\u8868\u6ed1\u52a8\u7684\u6781\u81f4\u6d41\u7545\u611f\u3002<\/p>\n

\n

\u4e94\u3001\u5b8c\u6574\u5b9e\u6218\u793a\u4f8b：\u9e3f\u8499\u5de5\u7a0b\u201c\u5206\u5e03\u5f0f\u5fc3\u8df3\u201d\u5ba1\u8ba1\u5668<\/h3>\n

\u672c\u793a\u4f8b\u5c55\u793a\u5982\u4f55\u5229\u7528\u8be5\u5e93\u6784\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u5b9e\u65f6\u5728\u7ebf\u76d1\u6d4b\u903b\u8f91\u3002<\/p>\n

import<\/span> 'package:mongo_dart\/mongo_dart.dart'<\/span><\/span>;<\/span><\/p>\n

class<\/span> OhosMongoPulse<\/span> {<\/span>
\n late Db<\/span> _db;<\/span><\/p>\n

\/\/\/ 💡 \u4e3a\u9e3f\u8499\u96c6\u7fa4\u5f00\u542f\u7edf\u4e00\u76d1\u63a7<\/span>
\n Future<\/span><<\/span>void<\/span>><\/span><\/span> monitor<\/span>(<\/span>)<\/span> async<\/span> {<\/span>
\n print<\/span>(<\/span>'🚀 \u6b63\u5728\u542f\u52a8\u9e3f\u8499\u5206\u5e03\u5f0f\u65e5\u5fd7\u9a71\u52a8\u5668…'<\/span><\/span>)<\/span>;<\/span><\/p>\n

_db =<\/span> await<\/span> Db<\/span>.<\/span>create<\/span>(<\/span>'mongodb:\/\/localhost:27017\/harmony_hub'<\/span><\/span>)<\/span>;<\/span>
\n await<\/span> _db.<\/span>open<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

final<\/span> collection =<\/span> _db.<\/span>collection<\/span>(<\/span>'nodes'<\/span><\/span>)<\/span>;<\/span><\/p>\n

\/\/ 💡 \u8ba2\u9605\u6570\u636e\u5e93\u7684\u53d8\u66f4\u7ec6\u8282（Watch）<\/span>
\n collection.<\/span>find<\/span>(<\/span>)<\/span>.<\/span>listen<\/span>(<\/span>(<\/span>doc)<\/span> {<\/span>
\n print<\/span>(<\/span>'📥 \u68c0\u6d4b\u5230\u9e3f\u8499\u8282\u70b9\u66f4\u65b0: ${doc['<\/span><\/span>name']} -> ${doc['<\/span><\/span>status']}'<\/span><\/span>)<\/span>;<\/span>
\n }<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

void<\/span> main<\/span>(<\/span>)<\/span> async<\/span> {<\/span>
\n final<\/span> pulse =<\/span> OhosMongoPulse<\/span>(<\/span>)<\/span>;<\/span>
\n await<\/span> pulse.<\/span>monitor<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\n

\u516d\u3001\u603b\u7ed3<\/h3>\n

mongo_dart \u8f6f\u4ef6\u5305\u662f OpenHarmony \u5f00\u53d1\u8005\u6253\u7406\u201c\u6d77\u91cf\u975e\u7ed3\u6784\u5316\u6570\u636e\u201d\u7684\u5229\u5203\u3002\u5b83\u62c6\u9664\u4e86\u4f20\u7edf\u79fb\u52a8\u5f00\u53d1\u5fc5\u987b\u901a\u8fc7 API \u4e2d\u8f6c\u7684\u85e9\u7bf1，\u8d4b\u4e88\u4e86\u9e3f\u8499\u5e94\u7528\u76f4\u63a5\u5bf9\u8bdd\u5de5\u4e1a\u7ea7\u6570\u636e\u5e93\u7684\u80fd\u529b\u3002\u5728\u6784\u5efa\u8ffd\u6c42\u6781\u81f4\u901a\u8baf\u6548\u7387\u3001\u8ffd\u6c42\u6781\u81f4\u6570\u636e\u5904\u7406\u7075\u6d3b\u6027\u7684\u9e3f\u8499\u539f\u751f\u5e94\u7528\u751f\u6001\u4e2d，\u5f15\u5165\u8fd9\u6837\u4e00\u5957\u7eaf\u8840\u3001\u9ad8\u6548\u7684\u6570\u636e\u5e93\u9a71\u52a8\u65b9\u6848，\u80fd\u8ba9\u60a8\u7684\u6570\u636e\u5e95\u5ea7\u67b6\u6784\u53d8\u5f97\u524d\u6240\u672a\u6709\u7684\u5f00\u9614\u4e0e\u81ea\u7531\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6b22\u8fce\u52a0\u5165\u5f00\u6e90\u9e3f\u8499\u8de8\u5e73\u53f0\u793e\u533a：https:\/\/openharmonycrossplatform.csdn.net \u524d\u8a00
\n\u5728\u8fdb\u884c OpenHarmony \u7684\u5de5\u4e1a\u5de1\u68c0\u3001\u5185\u90e8\u7ba1\u7406\u7cfb\u7edf\u6216\u8fb9\u7f18\u8ba1\u7b97（Edge Computing）\u5e94\u7528\u5f00\u53d1\u65f6，\u6709\u65f6\u6211\u4eec\u9700\u8981\u9e3f\u8499\u524d\u7aef\u5e94\u7528\u76f4\u63a5\u4e0e\u540e\u7aef\u7684 MongoDB \u6570\u636e\u5e93\u8fdb\u884c\u4ea4\u4e92，\u800c\u4e0d\u4ec5\u4ec5\u662f\u901a\u8fc7\u4f20\u7edf\u7684 Web API \u8f6c\u53d1\u3002
\nmongo_dart \u662f\u4e00\u4e2a\u6781\u5176\u5f3a\u5927\u7684\u3001\u5168\u529f\u80fd\u3001\u7eaf Dart <\/p>\n","protected":false},"author":2,"featured_media":76625,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[84,2878,280,2563,67,100],"topic":[],"class_list":["post-76634","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-android","tag-flutter","tag-harmonyos","tag-nosql","tag-67","tag-100"],"yoast_head":"\nFlutter for OpenHarmony: Flutter \u4e09\u65b9\u5e93 mongo_dart \u52a9\u529b\u9e3f\u8499\u5e94\u7528\u76f4\u8fde NoSQL \u6570\u636e\u5e93\u6784\u5efa\u9ad8\u6548\u7684\u6570\u636e\u6d41\u8f6c\u7cfb\u7edf\uff08\u7eaf Dart \u9a71\u52a8\u65b9\u6848\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/76634.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Flutter for OpenHarmony: Flutter \u4e09\u65b9\u5e93 mongo_dart \u52a9\u529b\u9e3f\u8499\u5e94\u7528\u76f4\u8fde NoSQL \u6570\u636e\u5e93\u6784\u5efa\u9ad8\u6548\u7684\u6570\u636e\u6d41\u8f6c\u7cfb\u7edf\uff08\u7eaf Dart \u9a71\u52a8\u65b9\u6848\uff09 - 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