{"id":29872,"date":"2022-11-04T09:35:07","date_gmt":"2023-08-21T04:11:23","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8-mongodb-%e7%9a%84%e5%ae%98%e6%96%b9-rust-%e9%a9%b1%e5%8a%a8%e7%a8%8b%e5%ba%8f%ef%bc%88alpha-%e7%89%88%ef%bc%89%ef%bc%882%ef%bc%89%ef%bc%88%e4%bd%bf%e7%94%a8\/"},"modified":"2025-08-12T16:20:39","modified_gmt":"2025-08-12T08:20:39","slug":"%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8-mongodb-%e7%9a%84%e5%ae%98%e6%96%b9-rust-%e9%a9%b1%e5%8a%a8%e7%a8%8b%e5%ba%8f%ef%bc%88alpha-%e7%89%88%ef%bc%89%ef%bc%882%ef%bc%89%ef%bc%88%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8-mongodb-%e7%9a%84%e5%ae%98%e6%96%b9-rust-%e9%a9%b1%e5%8a%a8%e7%a8%8b%e5%ba%8f%ef%bc%88alpha-%e7%89%88%ef%bc%89%ef%bc%882%ef%bc%89%ef%bc%88%e4%bd%bf%e7%94%a8\/","title":{"rendered":"\u5c1d\u8bd5\u4f7f\u7528 MongoDB \u7684\u5b98\u65b9 Rust \u9a71\u52a8\u7a0b\u5e8f\uff08alpha \u7248\uff09\uff082\uff09\uff08\u4f7f\u7528\u7ed3\u6784\u4f53\uff09"},"content":{"rendered":"<h1>\u6982\u8ff0\u672c\u6b21\u5b9e\u73b0\u4f7f\u7528\u7ed3\u6784\u4f53\u8fdb\u884c\u63d2\u5165\u548c\u67e5\u627e\u64cd\u4f5c\u3002\u540c\u65f6\uff0c\u9700\u8981\u8003\u8651\u5f53\u7ed3\u6784\u4f53\u7684\u67d0\u4e9b\u5b57\u6bb5\u6ca1\u6709\u6570\u636e\u65f6\u7684\u5904\u7406\u65b9\u5f0f\u3002<\/p>\n<h1>\u73af\u5883<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Windows 10<\/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\">MongoDB Community\u7248 4.2.2<\/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\">rust 1.40.0<\/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\">MongoDB rust<\/ul>\n<\/li>\n<\/ul>\n<p>\u30c9\u30e9\u30a4\u30d0\u30fc 0.9.0 (alpha\u7248)<\/p>\n<p>https:\/\/crates.io\/crates\/mongodb<br \/>\nhttps:\/\/github.com\/mongodb\/mongo-rust-driver<\/p>\n<p>bson 0.14.0<\/p>\n<p>https:\/\/crates.io\/crates\/bson<br \/>\nhttps:\/\/github.com\/mongodb\/bson-rust<\/p>\n<p>Rust\u306e\u30af\u30ec\u30fc\u30c8\u306a\u3069<\/p>\n<p>serde 1.0.104<\/p>\n<h1>\u8fdb\u884c\u5b9e\u65bd<\/p>\n<h2>\u5411Cargo.toml\u4e2d\u7684dependencies\u90e8\u5206\u6dfb\u52a0<\/p>\n<pre class=\"post-pre\"><code><span class=\"nn\">[dependencies]<\/span>\r\n\r\n<span class=\"py\">mongodb<\/span> <span class=\"p\">=<\/span><span class=\"s\">\"0.9.0\"<\/span>\r\n<span class=\"py\">bson<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\"0.14.0\"<\/span>\r\n<span class=\"py\">serde<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\"1.0.104\"<\/span>\r\n<\/code><\/pre>\n<h2>\u8bf7\u7528\u4e2d\u6587\u6765\u89e3\u91ca\u8fd9\u4e2a\u8bcd&#8221;\u30b3\u30fc\u30c9&#8221;\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">use<\/span> <span class=\"nn\">mongodb<\/span><span class=\"p\">::{<\/span><span class=\"nn\">error<\/span><span class=\"p\">::<\/span><span class=\"n\">Result<\/span><span class=\"p\">,<\/span> <span class=\"nn\">options<\/span><span class=\"p\">::{<\/span><span class=\"n\">ClientOptions<\/span><span class=\"p\">},<\/span> <span class=\"n\">Client<\/span><span class=\"p\">};<\/span>\r\n<span class=\"k\">use<\/span> <span class=\"nn\">serde<\/span><span class=\"p\">::{<\/span><span class=\"n\">Serialize<\/span><span class=\"p\">,<\/span> <span class=\"n\">Deserialize<\/span><span class=\"p\">};<\/span>\r\n\r\n<span class=\"nd\">#[derive(Serialize,<\/span> <span class=\"nd\">Deserialize)]<\/span>\r\n<span class=\"k\">pub<\/span> <span class=\"k\">struct<\/span> <span class=\"n\">Coll<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">item1<\/span><span class=\"p\">:<\/span> <span class=\"nb\">f64<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">item2<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i64<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">item3<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span> \r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">client<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">connect_mongo<\/span><span class=\"p\">()<\/span><span class=\"nf\">.expect<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to connect\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nf\">insert_docs<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">client<\/span><span class=\"p\">)<\/span><span class=\"nf\">.expect<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to insert docs\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nf\">find_all_docs<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">client<\/span><span class=\"p\">)<\/span><span class=\"nf\">.expect<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to find all docs\"<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">connect_mongo<\/span><span class=\"p\">()<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">Result<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">Client<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">client_options<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">ClientOptions<\/span><span class=\"p\">::<\/span><span class=\"nf\">parse<\/span><span class=\"p\">(<\/span><span class=\"s\">\"mongodb:\/\/localhost:27017\"<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"n\">client_options<\/span><span class=\"py\">.app_name<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">Some<\/span><span class=\"p\">(<\/span><span class=\"s\">\"My App\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">());<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">client<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">Client<\/span><span class=\"p\">::<\/span><span class=\"nf\">with_options<\/span><span class=\"p\">(<\/span><span class=\"n\">client_options<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nf\">Ok<\/span><span class=\"p\">(<\/span><span class=\"n\">client<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">insert_docs<\/span><span class=\"p\">(<\/span><span class=\"n\">client<\/span><span class=\"p\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Client<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">Result<\/span><span class=\"o\">&lt;<\/span><span class=\"p\">()<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">collection<\/span> <span class=\"o\">=<\/span> <span class=\"n\">client<\/span><span class=\"nf\">.database<\/span><span class=\"p\">(<\/span><span class=\"s\">\"test\"<\/span><span class=\"p\">)<\/span><span class=\"nf\">.collection<\/span><span class=\"p\">(<\/span><span class=\"s\">\"coll\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">col_data<\/span> <span class=\"o\">=<\/span> <span class=\"n\">Coll<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">item1<\/span><span class=\"p\">:<\/span> <span class=\"mf\">12.3<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">item2<\/span><span class=\"p\">:<\/span> <span class=\"mi\">456<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">item3<\/span><span class=\"p\">:<\/span> <span class=\"nn\">String<\/span><span class=\"p\">::<\/span><span class=\"nf\">from<\/span><span class=\"p\">(<\/span><span class=\"s\">\"string data\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">};<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">serialized_data<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">bson<\/span><span class=\"p\">::<\/span><span class=\"nf\">to_bson<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">col_data<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span> \r\n    <span class=\"k\">if<\/span> <span class=\"k\">let<\/span> <span class=\"nn\">bson<\/span><span class=\"p\">::<\/span><span class=\"nn\">Bson<\/span><span class=\"p\">::<\/span><span class=\"nf\">Document<\/span><span class=\"p\">(<\/span><span class=\"n\">document<\/span><span class=\"p\">)<\/span> <span class=\"o\">=<\/span> <span class=\"n\">serialized_data<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">collection<\/span><span class=\"nf\">.insert_one<\/span><span class=\"p\">(<\/span><span class=\"n\">document<\/span><span class=\"p\">,<\/span> <span class=\"nb\">None<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span> \r\n    <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Error converting the BSON object into a MongoDB document\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"nf\">Ok<\/span><span class=\"p\">(())<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">find_all_docs<\/span><span class=\"p\">(<\/span><span class=\"n\">client<\/span><span class=\"p\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Client<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">Result<\/span><span class=\"o\">&lt;<\/span><span class=\"p\">()<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">collection<\/span> <span class=\"o\">=<\/span> <span class=\"n\">client<\/span><span class=\"nf\">.database<\/span><span class=\"p\">(<\/span><span class=\"s\">\"test\"<\/span><span class=\"p\">)<\/span><span class=\"nf\">.collection<\/span><span class=\"p\">(<\/span><span class=\"s\">\"coll\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">cursor<\/span> <span class=\"o\">=<\/span> <span class=\"n\">collection<\/span><span class=\"nf\">.find<\/span><span class=\"p\">(<\/span><span class=\"nb\">None<\/span><span class=\"p\">,<\/span> <span class=\"nb\">None<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">result<\/span> <span class=\"n\">in<\/span> <span class=\"n\">cursor<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">match<\/span> <span class=\"n\">result<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"nf\">Ok<\/span><span class=\"p\">(<\/span><span class=\"n\">document<\/span><span class=\"p\">)<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"p\">{<\/span>   \r\n                <span class=\"k\">let<\/span> <span class=\"n\">coll<\/span> <span class=\"o\">=<\/span>  <span class=\"nn\">bson<\/span><span class=\"p\">::<\/span><span class=\"nn\">from_bson<\/span><span class=\"p\">::<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">Coll<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"nn\">bson<\/span><span class=\"p\">::<\/span><span class=\"nn\">Bson<\/span><span class=\"p\">::<\/span><span class=\"nf\">Document<\/span><span class=\"p\">(<\/span><span class=\"n\">document<\/span><span class=\"p\">))<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span>\r\n                <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"item1: {}, item2: {}, item3: {}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">coll<\/span><span class=\"py\">.item1<\/span><span class=\"p\">,<\/span> <span class=\"n\">coll<\/span><span class=\"py\">.item2<\/span><span class=\"p\">,<\/span> <span class=\"n\">coll<\/span><span class=\"py\">.item3<\/span><span class=\"p\">);<\/span>\r\n            <span class=\"p\">}<\/span>\r\n            <span class=\"nf\">Err<\/span><span class=\"p\">(<\/span><span class=\"n\">e<\/span><span class=\"p\">)<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"k\">return<\/span> <span class=\"nf\">Err<\/span><span class=\"p\">(<\/span><span class=\"n\">e<\/span><span class=\"nf\">.into<\/span><span class=\"p\">()),<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"nf\">Ok<\/span><span class=\"p\">(())<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u69cb\u9020\u4f53\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u306b\u306f\u3001bson::from_bson::\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>cargo run\r\n     Running `target\\debug\\mongorust.exe`\r\nitem1: 12.3, item2: 456, item3: string data\r\n<\/code><\/pre>\n<p>\u6211\u4f1a\u521b\u5efa\u4e00\u4e9b\u7f3a\u5c11\u5b57\u6bb5\u7684\u6570\u636e\u6765\u6d4b\u8bd5\u3002<\/p>\n<pre class=\"post-pre\"><code>mongo\r\n\r\n&gt; db.coll.insert({item1:11})\r\nWriteResult({ \"nInserted\" : 1 })\r\n&gt; db.coll.find()\r\n{ \"_id\" : ObjectId(\"5e2644d000a7d017003530ee\"), \"item1\" : 12.3, \"item2\" : NumberLong(456), \"item3\" : \"string data\" }\r\n{ \"_id\" : ObjectId(\"5e264597469b580a90779fbe\"), \"item1\" : 11 }\r\n<\/code><\/pre>\n<p>\u518d\u6b21\u8fd0\u884cRust\u7a0b\u5e8f<\/p>\n<pre class=\"post-pre\"><code>cargo run\r\n     Running `target\\debug\\mongorust.exe`\r\nitem1: 12.3, item2: 456, item3: string data\r\nthread 'main' panicked at 'failed to find all docs: Error { kind: BsonDecode(ExpectedField(\"item2\")) }', src\\libcore\\result.rs:1165:5\r\nnote: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.\r\nerror: process didn't exit successfully: `target\\debug\\mongorust.exe` (exit code: 101)\r\n<\/code><\/pre>\n<p>\u5982\u679c\u7ed3\u6784\u4f53\u7684\u5b57\u6bb5\u6570\u636e\u4e0d\u5b58\u5728\uff0c\u5219\u4f1a\u51fa\u73b0\u4e0a\u8ff0\u9519\u8bef\u3002\u56e0\u6b64\uff0c\u5c06\u7ed3\u6784\u4f53\u7684\u6570\u636e\u7c7b\u578b\u8bbe\u7f6e\u4e3aOption\u7c7b\u578b\u3002\u53e6\u5916\uff0c\u6211\u4eec\u6765\u770b\u770b\u5728\u63d2\u5165\u65f6\u63d2\u5165None\u4f1a\u53d1\u751f\u4ec0\u4e48\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">use<\/span> <span class=\"nn\">mongodb<\/span><span class=\"p\">::{<\/span><span class=\"nn\">error<\/span><span class=\"p\">::<\/span><span class=\"n\">Result<\/span><span class=\"p\">,<\/span> <span class=\"nn\">options<\/span><span class=\"p\">::{<\/span><span class=\"n\">ClientOptions<\/span><span class=\"p\">},<\/span> <span class=\"n\">Client<\/span><span class=\"p\">};<\/span>\r\n<span class=\"k\">use<\/span> <span class=\"nn\">serde<\/span><span class=\"p\">::{<\/span><span class=\"n\">Serialize<\/span><span class=\"p\">,<\/span> <span class=\"n\">Deserialize<\/span><span class=\"p\">};<\/span>\r\n\r\n<span class=\"nd\">#[derive(Serialize,<\/span> <span class=\"nd\">Deserialize)]<\/span>\r\n<span class=\"k\">pub<\/span> <span class=\"k\">struct<\/span> <span class=\"n\">Coll<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">item1<\/span><span class=\"p\">:<\/span> <span class=\"nb\">f64<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">item2<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Option<\/span><span class=\"o\">&lt;<\/span><span class=\"nb\">i64<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">item3<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Option<\/span><span class=\"o\">&lt;<\/span><span class=\"nb\">String<\/span><span class=\"o\">&gt;<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">client<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">connect_mongo<\/span><span class=\"p\">()<\/span><span class=\"nf\">.expect<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to connect\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nf\">insert_docs<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">client<\/span><span class=\"p\">)<\/span><span class=\"nf\">.expect<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to insert docs\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nf\">find_all_docs<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">client<\/span><span class=\"p\">)<\/span><span class=\"nf\">.expect<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to find all docs\"<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">connect_mongo<\/span><span class=\"p\">()<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">Result<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">Client<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">client_options<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">ClientOptions<\/span><span class=\"p\">::<\/span><span class=\"nf\">parse<\/span><span class=\"p\">(<\/span><span class=\"s\">\"mongodb:\/\/localhost:27017\"<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"n\">client_options<\/span><span class=\"py\">.app_name<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">Some<\/span><span class=\"p\">(<\/span><span class=\"s\">\"My App\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">());<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">client<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">Client<\/span><span class=\"p\">::<\/span><span class=\"nf\">with_options<\/span><span class=\"p\">(<\/span><span class=\"n\">client_options<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nf\">Ok<\/span><span class=\"p\">(<\/span><span class=\"n\">client<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">insert_docs<\/span><span class=\"p\">(<\/span><span class=\"n\">client<\/span><span class=\"p\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Client<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">Result<\/span><span class=\"o\">&lt;<\/span><span class=\"p\">()<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">collection<\/span> <span class=\"o\">=<\/span> <span class=\"n\">client<\/span><span class=\"nf\">.database<\/span><span class=\"p\">(<\/span><span class=\"s\">\"test\"<\/span><span class=\"p\">)<\/span><span class=\"nf\">.collection<\/span><span class=\"p\">(<\/span><span class=\"s\">\"coll\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">col_data<\/span> <span class=\"o\">=<\/span> <span class=\"n\">Coll<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">item1<\/span><span class=\"p\">:<\/span> <span class=\"mf\">78.9<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">item2<\/span><span class=\"p\">:<\/span> <span class=\"nb\">None<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">item3<\/span><span class=\"p\">:<\/span> <span class=\"nf\">Some<\/span><span class=\"p\">(<\/span><span class=\"nn\">String<\/span><span class=\"p\">::<\/span><span class=\"nf\">from<\/span><span class=\"p\">(<\/span><span class=\"s\">\"string data2\"<\/span><span class=\"p\">))<\/span>\r\n    <span class=\"p\">};<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">serialized_data<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">bson<\/span><span class=\"p\">::<\/span><span class=\"nf\">to_bson<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">col_data<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span> \r\n    <span class=\"k\">if<\/span> <span class=\"k\">let<\/span> <span class=\"nn\">bson<\/span><span class=\"p\">::<\/span><span class=\"nn\">Bson<\/span><span class=\"p\">::<\/span><span class=\"nf\">Document<\/span><span class=\"p\">(<\/span><span class=\"n\">document<\/span><span class=\"p\">)<\/span> <span class=\"o\">=<\/span> <span class=\"n\">serialized_data<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">collection<\/span><span class=\"nf\">.insert_one<\/span><span class=\"p\">(<\/span><span class=\"n\">document<\/span><span class=\"p\">,<\/span> <span class=\"nb\">None<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span> \r\n    <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Error converting the BSON object into a MongoDB document\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"nf\">Ok<\/span><span class=\"p\">(())<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">find_all_docs<\/span><span class=\"p\">(<\/span><span class=\"n\">client<\/span><span class=\"p\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Client<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">Result<\/span><span class=\"o\">&lt;<\/span><span class=\"p\">()<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">collection<\/span> <span class=\"o\">=<\/span> <span class=\"n\">client<\/span><span class=\"nf\">.database<\/span><span class=\"p\">(<\/span><span class=\"s\">\"test\"<\/span><span class=\"p\">)<\/span><span class=\"nf\">.collection<\/span><span class=\"p\">(<\/span><span class=\"s\">\"coll\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">cursor<\/span> <span class=\"o\">=<\/span> <span class=\"n\">collection<\/span><span class=\"nf\">.find<\/span><span class=\"p\">(<\/span><span class=\"nb\">None<\/span><span class=\"p\">,<\/span> <span class=\"nb\">None<\/span><span class=\"p\">)<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">result<\/span> <span class=\"n\">in<\/span> <span class=\"n\">cursor<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">match<\/span> <span class=\"n\">result<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"nf\">Ok<\/span><span class=\"p\">(<\/span><span class=\"n\">document<\/span><span class=\"p\">)<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"p\">{<\/span>   \r\n                <span class=\"k\">let<\/span> <span class=\"n\">coll<\/span> <span class=\"o\">=<\/span>  <span class=\"nn\">bson<\/span><span class=\"p\">::<\/span><span class=\"nn\">from_bson<\/span><span class=\"p\">::<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">Coll<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"nn\">bson<\/span><span class=\"p\">::<\/span><span class=\"nn\">Bson<\/span><span class=\"p\">::<\/span><span class=\"nf\">Document<\/span><span class=\"p\">(<\/span><span class=\"n\">document<\/span><span class=\"p\">))<\/span><span class=\"o\">?<\/span><span class=\"p\">;<\/span>\r\n                <span class=\"nd\">print!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"item1: {}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">coll<\/span><span class=\"py\">.item1<\/span><span class=\"p\">);<\/span>\r\n                <span class=\"k\">match<\/span> <span class=\"n\">coll<\/span><span class=\"py\">.item2<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"nf\">Some<\/span><span class=\"p\">(<\/span><span class=\"n\">v<\/span><span class=\"p\">)<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nd\">print!<\/span><span class=\"p\">(<\/span><span class=\"s\">\" item2: {}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">v<\/span><span class=\"p\">),<\/span>\r\n                    <span class=\"nb\">None<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"p\">{}<\/span>\r\n                <span class=\"p\">}<\/span>\r\n                <span class=\"k\">match<\/span> <span class=\"n\">coll<\/span><span class=\"py\">.item3<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"nf\">Some<\/span><span class=\"p\">(<\/span><span class=\"n\">v<\/span><span class=\"p\">)<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nd\">print!<\/span><span class=\"p\">(<\/span><span class=\"s\">\" item3: {}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">v<\/span><span class=\"p\">),<\/span> \r\n                    <span class=\"nb\">None<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"p\">{}<\/span>\r\n                <span class=\"p\">}<\/span>\r\n                <span class=\"nd\">println!<\/span><span class=\"p\">()<\/span>\r\n            <span class=\"p\">}<\/span>\r\n            <span class=\"nf\">Err<\/span><span class=\"p\">(<\/span><span class=\"n\">e<\/span><span class=\"p\">)<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"k\">return<\/span> <span class=\"nf\">Err<\/span><span class=\"p\">(<\/span><span class=\"n\">e<\/span><span class=\"nf\">.into<\/span><span class=\"p\">()),<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"nf\">Ok<\/span><span class=\"p\">(())<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u4f7f\u7528None\u5c06item2\u63d2\u5165\u4e86\u3002<br \/>\n\u6211\u4f7f\u7528\u4e86\u4e00\u4e2a\u6761\u4ef6\uff0c\u5728find\u4e2d\u5f53\u7ed3\u6784\u4f53\u7684\u6bcf\u4e2a\u5b57\u6bb5\u4e3aNone\u65f6\u4e0d\u6253\u5370\u3002\u9664\u4e86\u4f7f\u7528match\u6765\u64cd\u4f5c\u6bcf\u4e2a\u5b57\u6bb5\uff0c\u6211\u60f3\u4e0d\u5230\u5176\u4ed6\u7684\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code>cargo run\r\n     Running `target\\debug\\mongorust.exe`\r\nitem1: 12.3 item2: 456 item3: string data\r\nitem1: 11\r\nitem1: 78.9 item3: string data2\r\n<\/code><\/pre>\n<p>\u7531\u4e8e\u610f\u56fe\u4e4b\u5916\u7684\u5b57\u6bb5\u662f\u7a7a\u7684\uff0c\u6240\u4ee5\u5b83\u6ca1\u6709\u88ab\u6253\u5370\u51fa\u6765\u3002<br \/>\n\u63a5\u4e0b\u6765\u6211\u4eec\u5c06\u5728Mongo\u4e2d\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n<pre class=\"post-pre\"><code>mongo\r\n&gt; db.coll.find()\r\n{ \"_id\" : ObjectId(\"5e2644d000a7d017003530ee\"), \"item1\" : 12.3, \"item2\" : NumberLong(456), \"item3\" : \"string data\" }\r\n{ \"_id\" : ObjectId(\"5e264597469b580a90779fbe\"), \"item1\" : 11 }\r\n{ \"_id\" : ObjectId(\"5e269159008ba689009e7150\"), \"item1\" : 78.9, \"item2\" : null, \"item3\" : \"string data2\" }\r\n<\/code><\/pre>\n<p>\u5728 Rust \u4e2d\uff0c\u56e0\u4e3a\u4f7f\u7528\u4e86 None \u63d2\u5165\uff0c\u5bfc\u81f4\u5b57\u6bb5\u7684\u503c\u53d8\u6210\u4e86 null\u3002\u76ee\u524d\u8fd8\u4e0d\u6e05\u695a\u6709\u6ca1\u6709\u65b9\u6cd5\u53ef\u4ee5\u4e0d\u63d2\u5165\u7ed3\u6784\u4f53\u4e2d\u5df2\u5b9a\u4e49\u7684\u5b57\u6bb5\u3002<\/p>\n<h1>\u6700\u540e<br \/>\n\u6211\u5bf9Rust\u4e2d\u7684\u9519\u8bef\u5904\u7406\u548c\u679a\u4e3e\u4e0d\u592a\u7406\u89e3\uff0c\u65e0\u6cd5\u89e3\u91ca\u4ee3\u7801\u4e2d\u7684\u4e00\u4e9b\u90e8\u5206\u3002<br \/>\n\u5bf9\u4e8eMongoDB\u7684CRUD\uff0caggregate\u3001update\u3001delete\u7b49\u529f\u80fd\u8fd8\u6ca1\u6709\u5b8c\u5168\u638c\u63e1\uff0c\u4f46\u4f3c\u4e4e\u5e76\u4e0d\u592a\u96be\u3002\u7136\u800c\uff0c\u6211\u8fd8\u6ca1\u627e\u5230\u4e8b\u52a1\u529f\u80fd\u3002<\/p>\n<h1>\u94fe\u63a5\u8bd5\u7528 MongoDB \u5b98\u65b9 Rust \u9a71\u52a8\u7a0b\u5e8f\uff08Alpha \u7248\uff09\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8ff0\u672c\u6b21\u5b9e\u73b0\u4f7f\u7528\u7ed3\u6784\u4f53\u8fdb\u884c\u63d2\u5165\u548c\u67e5\u627e\u64cd\u4f5c\u3002\u540c\u65f6\uff0c\u9700\u8981\u8003\u8651\u5f53\u7ed3\u6784\u4f53\u7684\u67d0\u4e9b\u5b57\u6bb5\u6ca1\u6709\u6570\u636e\u65f6\u7684\u5904\u7406\u65b9\u5f0f\u3002 \u73af\u5883 Win [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-29872","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>\u5c1d\u8bd5\u4f7f\u7528 MongoDB \u7684\u5b98\u65b9 Rust \u9a71\u52a8\u7a0b\u5e8f\uff08alpha \u7248\uff09\uff082\uff09\uff08\u4f7f\u7528\u7ed3\u6784\u4f53\uff09 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u5c1d\u8bd5\u4f7f\u7528 MongoDB \u7684\u5b98\u65b9 Rust \u9a71\u52a8\u7a0b\u5e8f\uff08alpha \u7248\uff09\uff082\uff09\uff08\u4f7f\u7528\u7ed3\u6784\u4f53\uff09\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, 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