{"id":29647,"date":"2023-07-09T16:16:08","date_gmt":"2022-12-26T09:13:26","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/"},"modified":"2025-08-12T15:10:22","modified_gmt":"2025-08-12T07:10:22","slug":"%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/","title":{"rendered":"\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB"},"content":{"rendered":"<h1>\u9996\u5148\u6211\u4ee5\u524d\u5bf9 MongoDB \u4e0d\u592a\u611f\u5174\u8da3\uff0c\u4f46\u6700\u8fd1\u5c1d\u8bd5\u4f7f\u7528 Scala \u65f6\u53d1\u73b0 Observable \u4e0d\u592a\u7b26\u5408 Scala \u7684\u7279\u70b9\uff0c\u6240\u4ee5\u89c9\u5f97\u7528 Future \u5904\u7406\u4f1a\u66f4\u5bb9\u6613\u3002<\/p>\n<h2>\u73af\u5883<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Scala: 2.13<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">sbt: 1.3.4<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">mongo-scala-driver: 2.7.0<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">cats: 2.0.0<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u4ed6<\/ul>\n<h2>\u9879\u76ee\u7684\u4ea7\u51fa<\/p>\n<h1>\u6807\u51c6\u7684\u4f7f\u7528\u65b9\u6cd5\u6211\u5011\u5c07\u5f9e\u6a19\u6e96\u7684\u4f7f\u7528\u65b9\u5f0f\u958b\u59cb\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528case class\u6765\u5b9a\u4e49\u6a21\u5f0f\uff08schema\uff09\uff0c\u56e0\u6b64\u6211\u4eec\u4f1a\u5229\u7528\u5b83\u3002\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u4f3c\u4e4e\u6ca1\u6709\u4ec0\u4e48\u7528\u9014\u7684\u6a21\u5f0fA\uff0c\u5b83\u7b80\u5355\u5730\u4f5c\u4e3a\u5b50\u6a21\u5f0f\u5305\u542b\u591a\u4e2aB\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"nn\">com.example<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.bson.ObjectId<\/span>\r\n\r\n<span class=\"k\">final<\/span> <span class=\"k\">case<\/span> <span class=\"k\">class<\/span> <span class=\"nc\">A<\/span><span class=\"o\">(<\/span><span class=\"nc\">_id<\/span><span class=\"k\">:<\/span> <span class=\"kt\">ObjectId<\/span><span class=\"o\">,<\/span> <span class=\"n\">name<\/span><span class=\"k\">:<\/span> <span class=\"kt\">String<\/span><span class=\"o\">,<\/span> <span class=\"n\">children<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Seq<\/span><span class=\"o\">[<\/span><span class=\"kt\">B<\/span><span class=\"o\">])<\/span>\r\n\r\n<span class=\"k\">final<\/span> <span class=\"k\">case<\/span> <span class=\"k\">class<\/span> <span class=\"nc\">B<\/span><span class=\"o\">(<\/span><span class=\"n\">name<\/span><span class=\"k\">:<\/span> <span class=\"kt\">String<\/span><span class=\"o\">)<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u5728\u6570\u636e\u5e93\u521d\u59cb\u5316\u65f6\u6216\u96c6\u5408\u521d\u59cb\u5316\u65f6\uff0c\u5c06\u4e0a\u8ff0\u5185\u5bb9\u4f5c\u4e3awithCodecRegistry\u53c2\u6570\u4f20\u9012\uff0c\u5b83\u4f1a\u81ea\u52a8\u5c06\u5176\u89e3\u6790\u4e3aBSON\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u9a6c\u4e0a\u6765\u5bf9\u4e0a\u8ff0\u6a21\u5f0f\u8fdb\u884cCRUD\u64cd\u4f5c\u8bd5\u8bd5\u770b\u3002<\/p>\n<p>\u636e\u8bf4mongo-scala-driver\u662f\u4e00\u4e2a\u516c\u5f0f\u5e93\uff0c\u5b83\u662f\u5bf9mongo-java-driver\u7684\u5c01\u88c5\u3002\u5b83\u5c06\u5404\u79cd\u5904\u7406\u7ed3\u679c\u5305\u88c5\u6210\u4e86\u7c7b\u4f3c\u4e8e\u719f\u6089Rx\u7cfb\u7684Observable\u7684\u5f02\u6b65Java\u7c7b\u578b\uff0c\u5e76\u8fd4\u56de\u3002\u5b83\u91c7\u7528\u4e86\u4ee5\u5177\u6709onNext\u3001onError\u548conComplete\u7684Observer\u7c7b\u578b\u56de\u8c03\u4f5c\u4e3a\u53c2\u6570\u7684subscribe\u65b9\u6cd5\u6765\u5904\u7406\u8fd9\u4e9b\u7ed3\u679c\uff08\u4e0eRxJS\u4e0d\u540c\uff0cObservable\u4f3c\u4e4e\u53ea\u6709\u5728\u8c03\u7528subscribe\u65b9\u6cd5\u65f6\u624d\u4f1a\u6267\u884c&#8230;\u5f02\u6b65\u5f88\u96be\u554a\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"nn\">com.example<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">scala.concurrent.ExecutionContext<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.bson.codecs.configuration.CodecRegistries<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala._<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.bson.ObjectId<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.bson.codecs.DEFAULT_CODEC_REGISTRY<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.bson.codecs.Macros._<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.model.Filters._<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.model.Updates._<\/span>\r\n\r\n<span class=\"k\">object<\/span> <span class=\"nc\">Main<\/span> <span class=\"k\">extends<\/span> <span class=\"nc\">App<\/span> <span class=\"k\">with<\/span> <span class=\"nc\">LazyLogging<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"k\">implicit<\/span> <span class=\"k\">val<\/span> <span class=\"nv\">executionContext<\/span><span class=\"k\">:<\/span> <span class=\"kt\">ExecutionContext<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">ExecutionContext<\/span><span class=\"o\">.<\/span><span class=\"py\">global<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">mongoClient<\/span> <span class=\"k\">=<\/span> <span class=\"nc\">MongoClient<\/span><span class=\"o\">(<\/span>\r\n    <span class=\"s\">\"mongodb:\/\/root:1234@localhost:27017\/?authSource=admin\"<\/span>\r\n  <span class=\"o\">)<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">mongoDb<\/span> <span class=\"k\">=<\/span> <span class=\"n\">mongoClient<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"py\">getDatabase<\/span><span class=\"o\">(<\/span><span class=\"s\">\"test_db\"<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"py\">withCodecRegistry<\/span><span class=\"o\">(<\/span>\r\n      <span class=\"nv\">CodecRegistries<\/span><span class=\"o\">.<\/span><span class=\"py\">fromRegistries<\/span><span class=\"o\">(<\/span>\r\n        <span class=\"nv\">CodecRegistries<\/span><span class=\"o\">.<\/span><span class=\"py\">fromProviders<\/span><span class=\"o\">(<\/span><span class=\"n\">classOf<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">],<\/span> <span class=\"n\">classOf<\/span><span class=\"o\">[<\/span><span class=\"kt\">B<\/span><span class=\"o\">]),<\/span>\r\n        <span class=\"nc\">DEFAULT_CODEC_REGISTRY<\/span>\r\n      <span class=\"o\">)<\/span>\r\n    <span class=\"o\">)<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">mongoCollection<\/span> <span class=\"k\">=<\/span> <span class=\"nv\">mongoDb<\/span><span class=\"o\">.<\/span><span class=\"py\">getCollection<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">](<\/span><span class=\"s\">\"test\"<\/span><span class=\"o\">)<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">id1<\/span> <span class=\"k\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ObjectId<\/span><span class=\"o\">()<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">id2<\/span> <span class=\"k\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ObjectId<\/span><span class=\"o\">()<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">id3<\/span> <span class=\"k\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ObjectId<\/span><span class=\"o\">()<\/span>\r\n\r\n  <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"=========== start version of normal ==========\"<\/span><span class=\"o\">)<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">f1<\/span> <span class=\"k\">=<\/span> <span class=\"k\">for<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">drop<\/span><span class=\"o\">()<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">insertOne<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">A<\/span><span class=\"o\">(<\/span><span class=\"n\">id1<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_1\"<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Seq<\/span><span class=\"o\">(<\/span><span class=\"nf\">B<\/span><span class=\"o\">(<\/span><span class=\"s\">\"b_1\"<\/span><span class=\"o\">),<\/span> <span class=\"nf\">B<\/span><span class=\"o\">(<\/span><span class=\"s\">\"b_2\"<\/span><span class=\"o\">)))<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">insertOne<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">A<\/span><span class=\"o\">(<\/span><span class=\"n\">id2<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_2\"<\/span><span class=\"o\">,<\/span> <span class=\"nv\">Seq<\/span><span class=\"o\">.<\/span><span class=\"py\">empty<\/span><span class=\"o\">[<\/span><span class=\"kt\">B<\/span><span class=\"o\">])<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">insertOne<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">A<\/span><span class=\"o\">(<\/span><span class=\"n\">id3<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_3\"<\/span><span class=\"o\">,<\/span> <span class=\"nv\">Seq<\/span><span class=\"o\">.<\/span><span class=\"py\">empty<\/span><span class=\"o\">[<\/span><span class=\"kt\">B<\/span><span class=\"o\">])<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">updateOne<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">equal<\/span><span class=\"o\">(<\/span><span class=\"s\">\"_id\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">id2<\/span><span class=\"o\">),<\/span>\r\n          <span class=\"nf\">combine<\/span><span class=\"o\">(<\/span><span class=\"nf\">set<\/span><span class=\"o\">(<\/span><span class=\"s\">\"name\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_4\"<\/span><span class=\"o\">),<\/span> <span class=\"nf\">set<\/span><span class=\"o\">(<\/span><span class=\"s\">\"children\"<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Seq<\/span><span class=\"o\">(<\/span><span class=\"nf\">B<\/span><span class=\"o\">(<\/span><span class=\"s\">\"b_3\"<\/span><span class=\"o\">))))<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">deleteOne<\/span><span class=\"o\">(<\/span><span class=\"nf\">equal<\/span><span class=\"o\">(<\/span><span class=\"s\">\"_id\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">id3<\/span><span class=\"o\">))<\/span>\r\n    <span class=\"n\">found<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">find<\/span><span class=\"o\">()<\/span>\r\n  <span class=\"o\">}<\/span> <span class=\"k\">yield<\/span> <span class=\"n\">found<\/span>\r\n\r\n  <span class=\"nv\">f1<\/span><span class=\"o\">.<\/span><span class=\"py\">subscribe<\/span><span class=\"o\">(<\/span><span class=\"k\">new<\/span> <span class=\"nc\">Observer<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">]<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">onNext<\/span><span class=\"o\">(<\/span><span class=\"n\">result<\/span><span class=\"k\">:<\/span> <span class=\"kt\">A<\/span><span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Unit<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">info<\/span><span class=\"o\">(<\/span><span class=\"nv\">result<\/span><span class=\"o\">.<\/span><span class=\"py\">toString<\/span><span class=\"o\">)<\/span>\r\n\r\n    <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">onError<\/span><span class=\"o\">(<\/span><span class=\"n\">e<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Throwable<\/span><span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Unit<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">error<\/span><span class=\"o\">(<\/span><span class=\"s\">\"failed!!\"<\/span><span class=\"o\">)<\/span>\r\n\r\n    <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">onComplete<\/span><span class=\"o\">()<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Unit<\/span> <span class=\"o\">={<\/span>\r\n      <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"=========== finish version of normal ==========\"<\/span><span class=\"o\">)<\/span>\r\n\r\n      <span class=\"nv\">mongoClient<\/span><span class=\"o\">.<\/span><span class=\"py\">close<\/span><span class=\"o\">()<\/span>\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">})<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3046\u301c\u3093\u30fb\u30fb\u30fb\u3002\u4e00\u5fdc\u4e0a\u8a18\u306e\u3088\u3046\u306bfor\u69cb\u6587\u3092\u4f7f\u3048\u306a\u304f\u3082\u306a\u3044\u611f\u3058\u3067\u3059\u304c\u3001\u305d\u308c\u305e\u308c\u306e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\uff08onNext,onError,onComplete\uff09\u304c\u3069\u3046\u51e6\u7406\u3055\u308c\u3066\u3093\u306e\u304b\u3088\u304f\u5206\u304b\u3089\u308a\u307e\u305b\u3093\u3002\u7279\u306b\u9014\u4e2d\u306eonError\u304c\u51e6\u7406\u3055\u308c\u306a\u3044\u6c17\u914d\u304c\u30d7\u30f3\u30d7\u30f3\u3059\u308b\u3002<\/p>\n<p>for\u69cb\u6587\u304c\u4f7f\u3048\u306a\u304b\u3063\u305f\u3089\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u5730\u7344\u884c\u304d\u3060\u3057\u3001for\u69cb\u6587\u4f7f\u3046\u306a\u3089\u3084\u3063\u3071\u308aMonad\u3068\u3057\u3066\u7d44\u307f\u305f\u3044\u306e\u3067\u3069\u3046\u306b\u304b\u3057\u305f\u3044\u306a\u3041\u3063\u3066\u611f\u3058\u3067\u3059\u3002<\/p>\n<h1>\u60f3\u529e\u6cd5<br \/>\n\u5176\u5b9e\uff0cObservable\u5df2\u7ecf\u9884\u5148\u63d0\u4f9b\u4e86\u4e00\u4e2a\u540d\u4e3atoFuture\u7684\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u5c06Observable\u8f6c\u6362\u4e3aFuture\uff0c\u6240\u4ee5\u5f88\u5bb9\u6613\u5b9e\u73b0\u4efb\u610f\u8f6c\u6362\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u5982\u5f80\u5e38\u4e00\u6837\uff0c\u8ba9\u6211\u4eec\u5c06\u5176\u62c6\u5206\u5230\u4ed3\u5e93\u4e2d\u3002\u8fd9\u6b21\uff0c\u6211\u9009\u62e9\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u671f\u671b\u4f7f\u7528Monad\u7684\u683c\u5f0f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"nn\">com.example<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.bson.ObjectId<\/span>\r\n\r\n<span class=\"k\">trait<\/span> <span class=\"nc\">Repository<\/span><span class=\"o\">[<\/span><span class=\"kt\">F<\/span><span class=\"o\">[<\/span><span class=\"k\">_<\/span><span class=\"o\">]]<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"k\">def<\/span> <span class=\"nf\">drop<\/span><span class=\"k\">:<\/span> <span class=\"kt\">F<\/span><span class=\"o\">[<\/span><span class=\"kt\">Unit<\/span><span class=\"o\">]<\/span>\r\n\r\n  <span class=\"k\">def<\/span> <span class=\"nf\">findAll<\/span><span class=\"k\">:<\/span> <span class=\"kt\">F<\/span><span class=\"o\">[<\/span><span class=\"kt\">Seq<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">]]<\/span>\r\n\r\n  <span class=\"k\">def<\/span> <span class=\"nf\">insert<\/span><span class=\"o\">(<\/span><span class=\"n\">entity<\/span><span class=\"k\">:<\/span> <span class=\"kt\">A<\/span><span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">F<\/span><span class=\"o\">[<\/span><span class=\"kt\">Unit<\/span><span class=\"o\">]<\/span>\r\n\r\n  <span class=\"k\">def<\/span> <span class=\"nf\">update<\/span><span class=\"o\">(<\/span><span class=\"n\">entity<\/span><span class=\"k\">:<\/span> <span class=\"kt\">A<\/span><span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">F<\/span><span class=\"o\">[<\/span><span class=\"kt\">Unit<\/span><span class=\"o\">]<\/span>\r\n\r\n  <span class=\"k\">def<\/span> <span class=\"nf\">delete<\/span><span class=\"o\">(<\/span><span class=\"nc\">_id<\/span><span class=\"k\">:<\/span> <span class=\"kt\">ObjectId<\/span><span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">F<\/span><span class=\"o\">[<\/span><span class=\"kt\">Unit<\/span><span class=\"o\">]<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u5c06\u5c1d\u8bd5\u4f7f\u7528Cats\u7684Kleisli\u548cIO\u6765\u5b9e\u73b0\u4ee5\u4e0a\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"nn\">com.example<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">scala.concurrent.ExecutionContext<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">cats.data.Kleisli<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">cats.effect.<\/span><span class=\"o\">{<\/span><span class=\"nc\">ContextShift<\/span><span class=\"o\">,<\/span> <span class=\"nc\">IO<\/span><span class=\"o\">}<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.MongoCollection<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.bson.ObjectId<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.model.Filters._<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.model.Updates._<\/span>\r\n\r\n<span class=\"k\">object<\/span> <span class=\"nc\">RepositoryImpl<\/span> <span class=\"k\">extends<\/span> <span class=\"nc\">Repository<\/span><span class=\"o\">[<\/span><span class=\"kt\">Kleisli<\/span><span class=\"o\">[<\/span><span class=\"kt\">IO<\/span>, <span class=\"kt\">MongoCollection<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">]<\/span>, <span class=\"kt\">*<\/span><span class=\"o\">]]<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"k\">implicit<\/span> <span class=\"k\">val<\/span> <span class=\"nv\">cs<\/span><span class=\"k\">:<\/span> <span class=\"kt\">ContextShift<\/span><span class=\"o\">[<\/span><span class=\"kt\">IO<\/span><span class=\"o\">]<\/span> <span class=\"k\">=<\/span> <span class=\"nv\">IO<\/span><span class=\"o\">.<\/span><span class=\"py\">contextShift<\/span><span class=\"o\">(<\/span><span class=\"nv\">ExecutionContext<\/span><span class=\"o\">.<\/span><span class=\"py\">global<\/span><span class=\"o\">)<\/span>\r\n\r\n  <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">drop<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Kleisli<\/span><span class=\"o\">[<\/span><span class=\"kt\">IO<\/span>, <span class=\"kt\">MongoCollection<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">]<\/span>, <span class=\"kt\">Unit<\/span><span class=\"o\">]<\/span> <span class=\"k\">=<\/span>\r\n    <span class=\"nc\">Kleisli<\/span><span class=\"o\">(<\/span><span class=\"n\">c<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nv\">IO<\/span><span class=\"o\">.<\/span><span class=\"py\">fromFuture<\/span><span class=\"o\">(<\/span><span class=\"nc\">IO<\/span><span class=\"o\">(<\/span><span class=\"nv\">c<\/span><span class=\"o\">.<\/span><span class=\"py\">drop<\/span><span class=\"o\">().<\/span><span class=\"py\">toFuture<\/span><span class=\"o\">())).<\/span><span class=\"py\">map<\/span><span class=\"o\">(<\/span><span class=\"k\">_<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"o\">()))<\/span>\r\n\r\n  <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">findAll<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Kleisli<\/span><span class=\"o\">[<\/span><span class=\"kt\">IO<\/span>, <span class=\"kt\">MongoCollection<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">]<\/span>, <span class=\"kt\">Seq<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">]]<\/span> <span class=\"k\">=<\/span>\r\n    <span class=\"nc\">Kleisli<\/span><span class=\"o\">(<\/span><span class=\"n\">c<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nv\">IO<\/span><span class=\"o\">.<\/span><span class=\"py\">fromFuture<\/span><span class=\"o\">(<\/span><span class=\"nc\">IO<\/span><span class=\"o\">(<\/span><span class=\"nv\">c<\/span><span class=\"o\">.<\/span><span class=\"py\">find<\/span><span class=\"o\">().<\/span><span class=\"py\">toFuture<\/span><span class=\"o\">())))<\/span>\r\n\r\n  <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">insert<\/span><span class=\"o\">(<\/span><span class=\"n\">entity<\/span><span class=\"k\">:<\/span> <span class=\"kt\">A<\/span><span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Kleisli<\/span><span class=\"o\">[<\/span><span class=\"kt\">IO<\/span>, <span class=\"kt\">MongoCollection<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">]<\/span>, <span class=\"kt\">Unit<\/span><span class=\"o\">]<\/span> <span class=\"k\">=<\/span>\r\n    <span class=\"nc\">Kleisli<\/span><span class=\"o\">(<\/span><span class=\"n\">c<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nv\">IO<\/span><span class=\"o\">.<\/span><span class=\"py\">fromFuture<\/span><span class=\"o\">(<\/span><span class=\"nc\">IO<\/span><span class=\"o\">(<\/span><span class=\"nv\">c<\/span><span class=\"o\">.<\/span><span class=\"py\">insertOne<\/span><span class=\"o\">(<\/span><span class=\"n\">entity<\/span><span class=\"o\">).<\/span><span class=\"py\">toFuture<\/span><span class=\"o\">())).<\/span><span class=\"py\">map<\/span><span class=\"o\">(<\/span><span class=\"k\">_<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"o\">()))<\/span>\r\n\r\n  <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">update<\/span><span class=\"o\">(<\/span><span class=\"n\">entity<\/span><span class=\"k\">:<\/span> <span class=\"kt\">A<\/span><span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Kleisli<\/span><span class=\"o\">[<\/span><span class=\"kt\">IO<\/span>, <span class=\"kt\">MongoCollection<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">]<\/span>, <span class=\"kt\">Unit<\/span><span class=\"o\">]<\/span> <span class=\"k\">=<\/span>\r\n    <span class=\"nc\">Kleisli<\/span><span class=\"o\">(<\/span>\r\n      <span class=\"n\">c<\/span> <span class=\"k\">=&gt;<\/span>\r\n        <span class=\"nv\">IO<\/span><span class=\"o\">.<\/span><span class=\"py\">fromFuture<\/span><span class=\"o\">(<\/span>\r\n            <span class=\"nc\">IO<\/span><span class=\"o\">(<\/span>\r\n              <span class=\"nv\">c<\/span><span class=\"o\">.<\/span><span class=\"py\">updateOne<\/span><span class=\"o\">(<\/span><span class=\"nf\">equal<\/span><span class=\"o\">(<\/span><span class=\"s\">\"_id\"<\/span><span class=\"o\">,<\/span> <span class=\"nv\">entity<\/span><span class=\"o\">.<\/span><span class=\"py\">_id<\/span><span class=\"o\">),<\/span>\r\n                           <span class=\"nf\">combine<\/span><span class=\"o\">(<\/span><span class=\"nf\">set<\/span><span class=\"o\">(<\/span><span class=\"s\">\"name\"<\/span><span class=\"o\">,<\/span> <span class=\"nv\">entity<\/span><span class=\"o\">.<\/span><span class=\"py\">name<\/span><span class=\"o\">),<\/span>\r\n                                   <span class=\"nf\">set<\/span><span class=\"o\">(<\/span><span class=\"s\">\"children\"<\/span><span class=\"o\">,<\/span> <span class=\"nv\">entity<\/span><span class=\"o\">.<\/span><span class=\"py\">children<\/span><span class=\"o\">)))<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"py\">toFuture<\/span><span class=\"o\">()<\/span>\r\n            <span class=\"o\">)<\/span>\r\n          <span class=\"o\">)<\/span>\r\n          <span class=\"o\">.<\/span><span class=\"py\">map<\/span><span class=\"o\">(<\/span><span class=\"k\">_<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"o\">())<\/span>\r\n    <span class=\"o\">)<\/span>\r\n\r\n  <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">delete<\/span><span class=\"o\">(<\/span>\r\n      <span class=\"nc\">_id<\/span><span class=\"k\">:<\/span> <span class=\"kt\">ObjectId<\/span>\r\n  <span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Kleisli<\/span><span class=\"o\">[<\/span><span class=\"kt\">IO<\/span>, <span class=\"kt\">MongoCollection<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">]<\/span>, <span class=\"kt\">Unit<\/span><span class=\"o\">]<\/span> <span class=\"k\">=<\/span>\r\n    <span class=\"nc\">Kleisli<\/span><span class=\"o\">(<\/span>\r\n      <span class=\"n\">c<\/span> <span class=\"k\">=&gt;<\/span>\r\n        <span class=\"nv\">IO<\/span><span class=\"o\">.<\/span><span class=\"py\">fromFuture<\/span><span class=\"o\">(<\/span><span class=\"nc\">IO<\/span><span class=\"o\">(<\/span><span class=\"nv\">c<\/span><span class=\"o\">.<\/span><span class=\"py\">deleteOne<\/span><span class=\"o\">(<\/span><span class=\"nf\">equal<\/span><span class=\"o\">(<\/span><span class=\"s\">\"_id\"<\/span><span class=\"o\">,<\/span> <span class=\"nc\">_id<\/span><span class=\"o\">)).<\/span><span class=\"py\">toFuture<\/span><span class=\"o\">()))<\/span>\r\n          <span class=\"o\">.<\/span><span class=\"py\">map<\/span><span class=\"o\">(<\/span><span class=\"k\">_<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"o\">())<\/span>\r\n    <span class=\"o\">)<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8d70\u308a\u66f8\u304d\u611f\u304c\u6ea2\u308c\u3066\u307e\u3059\u304c\u3001\u3068\u308a\u3042\u3048\u305a\u5229\u7528\u3059\u308b\u5074\u306fObservable\u3092\u610f\u8b58\u305b\u305a\u3001\u95a2\u6570\u5408\u6210\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u6211\u5011\u56de\u5230\u4e86\u4e3b\u8981\u7684\u90e8\u5206\uff0c\u4e26\u9032\u884c\u4e86\u4f7f\u7528\u5b58\u5132\u5eab\u7684\u7248\u672c\u6dfb\u52a0\u548c\u90e8\u5206\u4fee\u6b63\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"nn\">com.example<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">java.util.concurrent.TimeUnit<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">scala.concurrent.duration.Duration<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">scala.concurrent.<\/span><span class=\"o\">{<\/span><span class=\"nc\">Await<\/span><span class=\"o\">,<\/span> <span class=\"nc\">ExecutionContext<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Future<\/span><span class=\"o\">}<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">scala.util.<\/span><span class=\"o\">{<\/span><span class=\"nc\">Failure<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Success<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Try<\/span><span class=\"o\">}<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">cats.data.Kleisli<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">cats.implicits._<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">com.typesafe.scalalogging.LazyLogging<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.bson.codecs.configuration.CodecRegistries<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala._<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.bson.ObjectId<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.bson.codecs.DEFAULT_CODEC_REGISTRY<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.bson.codecs.Macros._<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.model.Filters._<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.mongodb.scala.model.Updates._<\/span>\r\n\r\n<span class=\"k\">object<\/span> <span class=\"nc\">Main<\/span> <span class=\"k\">extends<\/span> <span class=\"nc\">App<\/span> <span class=\"k\">with<\/span> <span class=\"nc\">LazyLogging<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"k\">implicit<\/span> <span class=\"k\">val<\/span> <span class=\"nv\">executionContext<\/span><span class=\"k\">:<\/span> <span class=\"kt\">ExecutionContext<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">ExecutionContext<\/span><span class=\"o\">.<\/span><span class=\"py\">global<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">mongoClient<\/span> <span class=\"k\">=<\/span> <span class=\"nc\">MongoClient<\/span><span class=\"o\">(<\/span>\r\n    <span class=\"s\">\"mongodb:\/\/root:1234@localhost:27017\/?authSource=admin\"<\/span>\r\n  <span class=\"o\">)<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">mongoDb<\/span> <span class=\"k\">=<\/span> <span class=\"n\">mongoClient<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"py\">getDatabase<\/span><span class=\"o\">(<\/span><span class=\"s\">\"test_db\"<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"o\">.<\/span><span class=\"py\">withCodecRegistry<\/span><span class=\"o\">(<\/span>\r\n      <span class=\"nv\">CodecRegistries<\/span><span class=\"o\">.<\/span><span class=\"py\">fromRegistries<\/span><span class=\"o\">(<\/span>\r\n        <span class=\"nv\">CodecRegistries<\/span><span class=\"o\">.<\/span><span class=\"py\">fromProviders<\/span><span class=\"o\">(<\/span><span class=\"n\">classOf<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">],<\/span> <span class=\"n\">classOf<\/span><span class=\"o\">[<\/span><span class=\"kt\">B<\/span><span class=\"o\">]),<\/span>\r\n        <span class=\"nc\">DEFAULT_CODEC_REGISTRY<\/span>\r\n      <span class=\"o\">)<\/span>\r\n    <span class=\"o\">)<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">mongoCollection<\/span> <span class=\"k\">=<\/span> <span class=\"nv\">mongoDb<\/span><span class=\"o\">.<\/span><span class=\"py\">getCollection<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">](<\/span><span class=\"s\">\"test\"<\/span><span class=\"o\">)<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">id1<\/span> <span class=\"k\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ObjectId<\/span><span class=\"o\">()<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">id2<\/span> <span class=\"k\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ObjectId<\/span><span class=\"o\">()<\/span>\r\n\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">id3<\/span> <span class=\"k\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ObjectId<\/span><span class=\"o\">()<\/span>\r\n\r\n  <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"=========== start version of normal ==========\"<\/span><span class=\"o\">)<\/span>\r\n\r\n  <span class=\"c1\">\/\/ f1 = Observable[A]<\/span>\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">f1<\/span> <span class=\"k\">=<\/span> <span class=\"k\">for<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">drop<\/span><span class=\"o\">()<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">insertOne<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">A<\/span><span class=\"o\">(<\/span><span class=\"n\">id1<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_1\"<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Seq<\/span><span class=\"o\">(<\/span><span class=\"nf\">B<\/span><span class=\"o\">(<\/span><span class=\"s\">\"b_1\"<\/span><span class=\"o\">),<\/span> <span class=\"nf\">B<\/span><span class=\"o\">(<\/span><span class=\"s\">\"b_2\"<\/span><span class=\"o\">)))<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">insertOne<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">A<\/span><span class=\"o\">(<\/span><span class=\"n\">id2<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_2\"<\/span><span class=\"o\">,<\/span> <span class=\"nv\">Seq<\/span><span class=\"o\">.<\/span><span class=\"py\">empty<\/span><span class=\"o\">[<\/span><span class=\"kt\">B<\/span><span class=\"o\">])<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">insertOne<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">A<\/span><span class=\"o\">(<\/span><span class=\"n\">id3<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_3\"<\/span><span class=\"o\">,<\/span> <span class=\"nv\">Seq<\/span><span class=\"o\">.<\/span><span class=\"py\">empty<\/span><span class=\"o\">[<\/span><span class=\"kt\">B<\/span><span class=\"o\">])<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">updateOne<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">equal<\/span><span class=\"o\">(<\/span><span class=\"s\">\"_id\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">id2<\/span><span class=\"o\">),<\/span>\r\n          <span class=\"nf\">combine<\/span><span class=\"o\">(<\/span><span class=\"nf\">set<\/span><span class=\"o\">(<\/span><span class=\"s\">\"name\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_4\"<\/span><span class=\"o\">),<\/span> <span class=\"nf\">set<\/span><span class=\"o\">(<\/span><span class=\"s\">\"children\"<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Seq<\/span><span class=\"o\">(<\/span><span class=\"nf\">B<\/span><span class=\"o\">(<\/span><span class=\"s\">\"b_3\"<\/span><span class=\"o\">))))<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">deleteOne<\/span><span class=\"o\">(<\/span><span class=\"nf\">equal<\/span><span class=\"o\">(<\/span><span class=\"s\">\"_id\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">id3<\/span><span class=\"o\">))<\/span>\r\n    <span class=\"n\">found<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">mongoCollection<\/span><span class=\"o\">.<\/span><span class=\"py\">find<\/span><span class=\"o\">()<\/span>\r\n  <span class=\"o\">}<\/span> <span class=\"k\">yield<\/span> <span class=\"n\">found<\/span>\r\n\r\n  <span class=\"nv\">f1<\/span><span class=\"o\">.<\/span><span class=\"py\">subscribe<\/span><span class=\"o\">(<\/span><span class=\"k\">new<\/span> <span class=\"nc\">Observer<\/span><span class=\"o\">[<\/span><span class=\"kt\">A<\/span><span class=\"o\">]<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">onNext<\/span><span class=\"o\">(<\/span><span class=\"n\">result<\/span><span class=\"k\">:<\/span> <span class=\"kt\">A<\/span><span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Unit<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">info<\/span><span class=\"o\">(<\/span><span class=\"nv\">result<\/span><span class=\"o\">.<\/span><span class=\"py\">toString<\/span><span class=\"o\">)<\/span>\r\n\r\n    <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">onError<\/span><span class=\"o\">(<\/span><span class=\"n\">e<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Throwable<\/span><span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Unit<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">error<\/span><span class=\"o\">(<\/span><span class=\"s\">\"failed!!\"<\/span><span class=\"o\">)<\/span>\r\n\r\n    <span class=\"k\">override<\/span> <span class=\"k\">def<\/span> <span class=\"nf\">onComplete<\/span><span class=\"o\">()<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Unit<\/span> <span class=\"o\">=<\/span>\r\n      <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"=========== finish version of normal ==========\"<\/span><span class=\"o\">)<\/span>\r\n  <span class=\"o\">})<\/span>\r\n\r\n  <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"=========== start version of repository ==========\"<\/span><span class=\"o\">)<\/span>\r\n\r\n  <span class=\"c1\">\/\/ f2 = Klesli[IO, MongoCollection[A], Seq[A]]<\/span>\r\n  <span class=\"k\">val<\/span> <span class=\"nv\">f2<\/span> <span class=\"k\">=<\/span> <span class=\"k\">for<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">RepositoryImpl<\/span><span class=\"o\">.<\/span><span class=\"py\">drop<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">RepositoryImpl<\/span><span class=\"o\">.<\/span><span class=\"py\">insert<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">A<\/span><span class=\"o\">(<\/span><span class=\"n\">id1<\/span><span class=\"o\">,<\/span>\r\n            <span class=\"s\">\"a_1\"<\/span><span class=\"o\">,<\/span>\r\n            <span class=\"nc\">Seq<\/span><span class=\"o\">(<\/span>\r\n              <span class=\"nf\">B<\/span><span class=\"o\">(<\/span><span class=\"s\">\"b_1\"<\/span><span class=\"o\">),<\/span>\r\n              <span class=\"nf\">B<\/span><span class=\"o\">(<\/span><span class=\"s\">\"b_2\"<\/span><span class=\"o\">)<\/span>\r\n            <span class=\"o\">))<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">RepositoryImpl<\/span><span class=\"o\">.<\/span><span class=\"py\">insert<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">A<\/span><span class=\"o\">(<\/span><span class=\"n\">id2<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_2\"<\/span><span class=\"o\">,<\/span> <span class=\"nv\">Seq<\/span><span class=\"o\">.<\/span><span class=\"py\">empty<\/span><span class=\"o\">[<\/span><span class=\"kt\">B<\/span><span class=\"o\">])<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">RepositoryImpl<\/span><span class=\"o\">.<\/span><span class=\"py\">insert<\/span><span class=\"o\">(<\/span>\r\n          <span class=\"nf\">A<\/span><span class=\"o\">(<\/span><span class=\"n\">id3<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_3\"<\/span><span class=\"o\">,<\/span> <span class=\"nv\">Seq<\/span><span class=\"o\">.<\/span><span class=\"py\">empty<\/span><span class=\"o\">[<\/span><span class=\"kt\">B<\/span><span class=\"o\">])<\/span>\r\n        <span class=\"o\">)<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nc\">RepositoryImpl<\/span>\r\n          <span class=\"o\">.<\/span><span class=\"py\">update<\/span><span class=\"o\">(<\/span><span class=\"nf\">A<\/span><span class=\"o\">(<\/span><span class=\"n\">id2<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"a_4\"<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Seq<\/span><span class=\"o\">(<\/span><span class=\"nf\">B<\/span><span class=\"o\">(<\/span><span class=\"s\">\"b_3\"<\/span><span class=\"o\">))))<\/span>\r\n    <span class=\"k\">_<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">RepositoryImpl<\/span><span class=\"o\">.<\/span><span class=\"py\">delete<\/span><span class=\"o\">(<\/span><span class=\"n\">id3<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"n\">found<\/span> <span class=\"k\">&lt;-<\/span> <span class=\"nv\">RepositoryImpl<\/span><span class=\"o\">.<\/span><span class=\"py\">findAll<\/span>\r\n  <span class=\"o\">}<\/span> <span class=\"k\">yield<\/span> <span class=\"n\">found<\/span>\r\n\r\n  <span class=\"nv\">f2<\/span><span class=\"o\">.<\/span><span class=\"py\">run<\/span><span class=\"o\">(<\/span><span class=\"n\">mongoCollection<\/span><span class=\"o\">).<\/span><span class=\"py\">unsafeRunAsync<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"nc\">Right<\/span><span class=\"o\">(<\/span><span class=\"n\">v<\/span><span class=\"o\">)<\/span> <span class=\"k\">=&gt;<\/span>\r\n      <span class=\"nv\">v<\/span><span class=\"o\">.<\/span><span class=\"py\">foreach<\/span><span class=\"o\">(<\/span><span class=\"n\">a<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">info<\/span><span class=\"o\">(<\/span><span class=\"nv\">a<\/span><span class=\"o\">.<\/span><span class=\"py\">toString<\/span><span class=\"o\">))<\/span>\r\n      <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"=========== finish version of repository ==========\"<\/span><span class=\"o\">)<\/span>\r\n\r\n    <span class=\"k\">case<\/span> <span class=\"nc\">Left<\/span><span class=\"o\">(<\/span><span class=\"k\">_<\/span><span class=\"o\">)<\/span> <span class=\"k\">=&gt;<\/span>\r\n      <span class=\"nv\">logger<\/span><span class=\"o\">.<\/span><span class=\"py\">error<\/span><span class=\"o\">(<\/span><span class=\"s\">\"failed!!\"<\/span><span class=\"o\">)<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"c1\">\/\/ 30\u79d2\u3082\u3042\u308c\u3070\u7d42\u308f\u308b\u306f\u305a<\/span>\r\n  <span class=\"nv\">Await<\/span><span class=\"o\">.<\/span><span class=\"py\">result<\/span><span class=\"o\">(<\/span><span class=\"nc\">Future<\/span><span class=\"o\">(<\/span><span class=\"nv\">Thread<\/span><span class=\"o\">.<\/span><span class=\"py\">sleep<\/span><span class=\"o\">(<\/span><span class=\"mi\">30000<\/span><span class=\"o\">)),<\/span> <span class=\"nc\">Duration<\/span><span class=\"o\">(<\/span><span class=\"mi\">30<\/span><span class=\"o\">,<\/span> <span class=\"nv\">TimeUnit<\/span><span class=\"o\">.<\/span><span class=\"py\">SECONDS<\/span><span class=\"o\">))<\/span>\r\n\r\n  <span class=\"nv\">mongoClient<\/span><span class=\"o\">.<\/span><span class=\"py\">close<\/span><span class=\"o\">()<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6267\u884c\u4e0a\u8ff0\u64cd\u4f5c\u540e\uff0c\u5e94\u8be5\u5728\u63a7\u5236\u53f0\u4e2d\u663e\u793a\u5982\u4e0b\uff08\u7701\u7565\u4e86\u9a71\u52a8\u7a0b\u5e8f\u8f93\u51fa\u7684\u65e5\u5fd7\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"go\">=========== start version of normal ==========\r\n=========== start version of repository ==========\r\nA(5ddcb68d27918964b23fddb4,a_1,List(B(b_1), B(b_2)))\r\nA(5ddcb68d27918964b23fddb5,a_4,List(B(b_3)))\r\n=========== finish version of normal ==========\r\nA(5ddcb68d27918964b23fddb4,a_1,List(B(b_1), B(b_2)))\r\nA(5ddcb68d27918964b23fddb5,a_4,List(B(b_3)))\r\n=========== finish version of repository ==========\r\n<\/span><\/code><\/pre>\n<h1>\u6700\u540e<br \/>\n\u3061\u306a\u307f\u306b\u516c\u5f0f\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306f\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u7528\u306e\u30d8\u30eb\u30d1\u30fc\u304c\u7528\u610f\u3057\u3066\u3042\u3063\u3066\u3042\u3063\u3055\u308aFuture-&gt;Await\u306b\u3057\u3066\u305f\u308a\u3059\u308b\u3002<\/p>\n<p>\u542c\u8bf4\u8fd8\u53ef\u4ee5\u4f7f\u7528ReactiveStream\u4e4b\u7c7b\u7684\uff0c\u4f46\u5173\u4e8e\u90a3\u65b9\u9762\u7684\u4e8b\u60c5\u6211\u4eec\u4ee5\u540e\u518d\u8bf4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148\u6211\u4ee5\u524d\u5bf9 MongoDB \u4e0d\u592a\u611f\u5174\u8da3\uff0c\u4f46\u6700\u8fd1\u5c1d\u8bd5\u4f7f\u7528 Scala \u65f6\u53d1\u73b0 Observable \u4e0d\u592a\u7b26\u5408  [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-29647","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB\u7684\u6280\u672f\u6587\u7ae0\" \/>\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.silicloud.com\/zh\/blog\/\u6211\u5e0c\u671b\u80fd\u5728scala\u4e2d\u5904\u7406mongodb\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u5e0c\u671b\u80fd\u5728scala\u4e2d\u5904\u7406mongodb\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-26T09:13:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-12T07:10:22+00:00\" \/>\n<meta name=\"author\" content=\"\u79d1, \u9896\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u79d1, \u9896\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/\",\"name\":\"\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2022-12-26T09:13:26+00:00\",\"dateModified\":\"2025-08-12T07:10:22+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/8ca01ba7f7362ad4edb7da206a12f29e\"},\"description\":\"\u5173\u4e8e\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB\u7684\u6280\u672f\u6587\u7ae0\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/8ca01ba7f7362ad4edb7da206a12f29e\",\"name\":\"\u79d1, \u9896\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/8a6fb3cc7ba2f69d2189ba532aec4633ea7ed75ac0af162ec367cb3abc0fb2af?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/8a6fb3cc7ba2f69d2189ba532aec4633ea7ed75ac0af162ec367cb3abc0fb2af?s=96&d=mm&r=g\",\"caption\":\"\u79d1, \u9896\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/keying\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB - Blog - Silicon Cloud","description":"\u5173\u4e8e\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB\u7684\u6280\u672f\u6587\u7ae0","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u5e0c\u671b\u80fd\u5728scala\u4e2d\u5904\u7406mongodb\u3002\/","og_locale":"zh_CN","og_type":"article","og_title":"\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB","og_description":"\u5173\u4e8e\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB\u7684\u6280\u672f\u6587\u7ae0","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u5e0c\u671b\u80fd\u5728scala\u4e2d\u5904\u7406mongodb\u3002\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2022-12-26T09:13:26+00:00","article_modified_time":"2025-08-12T07:10:22+00:00","author":"\u79d1, \u9896","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u79d1, \u9896","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"1 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/","name":"\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2022-12-26T09:13:26+00:00","dateModified":"2025-08-12T07:10:22+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/8ca01ba7f7362ad4edb7da206a12f29e"},"description":"\u5173\u4e8e\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB\u7684\u6280\u672f\u6587\u7ae0","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"\u6211\u5e0c\u671b\u80fd\u5728Scala\u4e2d\u5904\u7406MongoDB"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/8ca01ba7f7362ad4edb7da206a12f29e","name":"\u79d1, \u9896","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/8a6fb3cc7ba2f69d2189ba532aec4633ea7ed75ac0af162ec367cb3abc0fb2af?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8a6fb3cc7ba2f69d2189ba532aec4633ea7ed75ac0af162ec367cb3abc0fb2af?s=96&d=mm&r=g","caption":"\u79d1, \u9896"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/keying\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b8%8c%e6%9c%9b%e8%83%bd%e5%9c%a8scala%e4%b8%ad%e5%a4%84%e7%90%86mongodb%e3%80%82\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/29647","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=29647"}],"version-history":[{"count":3,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/29647\/revisions"}],"predecessor-version":[{"id":111522,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/29647\/revisions\/111522"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=29647"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=29647"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=29647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}