{"id":47017,"date":"2025-07-30T05:32:05","date_gmt":"2025-07-29T21:32:05","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/47017.html"},"modified":"2025-07-30T05:32:05","modified_gmt":"2025-07-29T21:32:05","slug":"c%e5%90%8e%e7%ab%af%e7%bc%96%e7%a8%8b-%e6%9e%84%e5%bb%ba%e9%ab%98%e6%80%a7%e8%83%bd%e5%90%8e%e7%ab%af%e7%9a%84%e6%95%b0%e6%8d%ae%e5%ba%93%e3%80%81api-%e4%b8%8e-web-%e6%9c%8d%e5%8a%a1%e5%99%a8-5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/47017.html","title":{"rendered":"C++\u540e\u7aef\u7f16\u7a0b \u6784\u5efa\u9ad8\u6027\u80fd\u540e\u7aef\u7684\u6570\u636e\u5e93\u3001API \u4e0e Web \u670d\u52a1\u5668 5 \u4f7f\u7528 MongoDB \u7ba1\u7406\u6570\u636e\u5e93\u64cd\u4f5c"},"content":{"rendered":"

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\u63a2\u7d22 MongoDB<\/span><\/h2>\n

MongoDB \u662f\u4e00\u79cd\u6d41\u884c\u7684 NoSQL \u6570\u636e\u5e93，\u5177\u6709\u9ad8\u6027\u80fd\u3001\u9ad8\u53ef\u7528\u6027\u548c\u6613\u4e8e\u6269\u5c55\u7684\u7279\u70b9\u3002\u00a0\u4e0e\u4f20\u7edf\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e0d\u540c，MongoDB \u4ee5\u7075\u6d3b\u7684\u7c7b JSON \u6587\u6863\u683c\u5f0f\u5b58\u50a8\u6570\u636e，\u8fd9\u610f\u5473\u7740\u4e0d\u540c\u6587\u6863\u53ef\u4ee5\u5305\u542b\u4e0d\u540c\u5b57\u6bb5，\u6570\u636e\u7ed3\u6784\u4e5f\u80fd\u968f\u65f6\u95f4\u53d8\u5316\u3002\u00a0\u6b63\u662f\u8fd9\u79cd\u7075\u6d3b\u6027，\u52a0\u4e0a\u5176\u4ed6\u7279\u6027，\u4f7f\u5176\u6210\u4e3a\u8bb8\u591a\u5e94\u7528\u4e2d\u6bd4\u4f20\u7edf\u5173\u7cfb\u578b\u6570\u636e\u5e93\u66f4\u5177\u5438\u5f15\u529b\u7684\u9009\u62e9\u3002<\/span><\/p>\n

\u7075\u6d3b\u7684\u6570\u636e\u6a21\u578b<\/span><\/p>\n

MongoDB \u76f8\u8f83\u4e8e\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u9996\u8981\u4f18\u52bf\u5728\u4e8e\u5176\u7075\u6d3b\u7684\u67b6\u6784\u3002\u00a0\u8fd9\u79cd\u7075\u6d3b\u6027\u4f7f\u5f97\u5e94\u7528\u5f00\u53d1\u66f4\u5feb\u901f，\u56e0\u4e3a\u5f00\u53d1\u8005\u65e0\u9700\u9884\u5148\u5b9a\u4e49\u6570\u636e\u7ed3\u6784，\u6216\u5728\u6dfb\u52a0\u65b0\u5b57\u6bb5\u65f6\u4fee\u6539\u7ed3\u6784\u3002\u00a0\u8fd9\u4e5f\u610f\u5473\u7740\u60a8\u53ef\u4ee5\u5b58\u50a8\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784，\u5982\u5d4c\u5957\u6570\u7ec4\u548c\u6587\u6863，\u8fd9\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u5f80\u5f80\u96be\u4ee5\u5b9e\u73b0\u3002<\/span><\/p>\n

\u53ef\u6269\u5c55\u6027<\/span><\/p>\n

MongoDB \u7684\u6c34\u5e73\u6269\u5c55\u67b6\u6784\u4f7f\u5176\u66f4\u9002\u5408\u5904\u7406\u4e0d\u65ad\u589e\u957f\u7684\u5927\u578b\u6570\u636e\u96c6\u3002\u00a0\u4e0e SQL \u6570\u636e\u5e93\u5e38\u89c1\u7684\u901a\u8fc7\u589e\u5f3a\u5355\u53f0\u670d\u52a1\u5668\u6027\u80fd\u8fdb\u884c\u7eb5\u5411\u6269\u5c55\u4e0d\u540c，MongoDB \u901a\u8fc7\u5411\u7f51\u7edc\u6dfb\u52a0\u66f4\u591a\u670d\u52a1\u5668\u5b9e\u73b0\u6a2a\u5411\u6269\u5c55\u3002\u00a0\u8fd9\u79cd\u901a\u8fc7\u6dfb\u52a0\u673a\u5668\u5b9e\u73b0\u6269\u5c55\u7684\u80fd\u529b（\u79f0\u4e3a\u5206\u7247）\u662f MongoDB \u7684\u5f3a\u5927\u7279\u6027，\u4e3a\u5927\u6570\u636e\u6311\u6218\u63d0\u4f9b\u4e86\u6709\u6548\u89e3\u51b3\u65b9\u6848\u3002<\/span><\/p>\n

\u901f\u5ea6<\/span><\/p>\n

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\u590d\u5236\u4e0e\u9ad8\u53ef\u7528\u6027<\/span><\/p>\n

MongoDB \u901a\u8fc7\u5185\u7f6e\u7684\u590d\u5236\u529f\u80fd\u63d0\u9ad8\u6570\u636e\u53ef\u7528\u6027，\u5728\u4e0d\u540c\u670d\u52a1\u5668\u4e0a\u7ef4\u62a4\u6570\u636e\u7684\u591a\u4e2a\u526f\u672c\u3002\u00a0\u81ea\u52a8\u6545\u969c\u8f6c\u79fb\u610f\u5473\u7740\u5982\u679c\u4e3b\u670d\u52a1\u5668\u5b95\u673a，\u65b0\u7684\u4e3b\u670d\u52a1\u5668\u5c06\u81ea\u52a8\u542f\u52a8\u5e76\u8fd0\u884c\u3002\u00a0\u6b64\u7279\u6027\u6709\u52a9\u4e8e\u786e\u4fdd\u5e94\u7528\u7a0b\u5e8f\u6301\u7eed\u8fd0\u884c，\u6570\u636e\u59cb\u7ec8\u53ef\u7528\u3002<\/span><\/p>\n

\u4e30\u5bcc\u7684\u67e5\u8be2\u8bed\u8a00<\/span><\/p>\n

MongoDB \u652f\u6301\u4e30\u5bcc\u4e14\u5bcc\u6709\u8868\u73b0\u529b\u7684\u9762\u5411\u5bf9\u8c61\u67e5\u8be2\u8bed\u8a00\u3002\u00a0\u5f00\u53d1\u8005\u53ef\u4ee5\u901a\u8fc7\u5355\u952e\u67e5\u8be2\u3001\u8303\u56f4\u67e5\u8be2\u3001\u6587\u672c\u641c\u7d22\u3001\u56fe\u5904\u7406\u4ee5\u53ca\u901a\u8fc7\u5b9e\u65f6\u805a\u5408\u5b9e\u73b0\u7684\u5730\u7406\u7a7a\u95f4\u67e5\u8be2\u7b49\u591a\u79cd\u65b9\u5f0f，\u6784\u5efa\u80fd\u591f\u7075\u6d3b\u67e5\u8be2\u5206\u6790\u6570\u636e\u7684\u5e94\u7528\u7a0b\u5e8f，\u63d0\u4f9b\u5f3a\u5927\u7684\u6570\u636e\u8bbf\u95ee\u4e0e\u5206\u6790\u80fd\u529b\u3002<\/span><\/p>\n

\u5fc5\u987b\u7262\u8bb0\u7684\u662f，\u5c3d\u7ba1 MongoDB \u5177\u6709\u591a\u79cd\u4f18\u52bf，\u4f46\u5b83\u5e76\u975e\u653e\u4e4b\u56db\u6d77\u800c\u7686\u51c6\u7684\u89e3\u51b3\u65b9\u6848\u3002\u00a0\u5b83\u5e76\u4e0d\u9002\u5408\u5728\u6240\u6709\u60c5\u51b5\u4e0b\u90fd\u4f5c\u4e3a\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u66ff\u4ee3\u54c1\u4f7f\u7528\u3002\u00a0\u5bf9\u4e8e\u67d0\u4e9b\u4f7f\u7528\u573a\u666f\u548c\u5e94\u7528\u800c\u8a00，\u5173\u7cfb\u578b\u6570\u636e\u5e93\u63d0\u4f9b\u7684\u66f4\u7ed3\u6784\u5316\u65b9\u6cd5\u53ef\u80fd\u66f4\u4e3a\u6709\u5229\u3002<\/span><\/p>\n

\u5b89\u88c5\u548c\u914d\u7f6e MongoDB<\/span><\/h2>\n

\u8981\u5c06 MongoDB \u96c6\u6210\u5230 C++\u5f00\u53d1\u73af\u5883\u4e2d，\u9996\u5148\u9700\u8981\u5728\u7cfb\u7edf\u4e0a\u5b89\u88c5 MongoDB\u3002\u00a0\u4ece MongoDB \u5b98\u7f51\u4e0b\u8f7d MongoDB \u793e\u533a\u7248\u670d\u52a1\u5668，\u5e76\u6309\u7167\u5b89\u88c5\u8bf4\u660e\u8fdb\u884c\u64cd\u4f5c\u3002\u00a0\u63a5\u7740\u5b89\u88c5 MongoDB C++\u9a71\u52a8\u7a0b\u5e8f，\u8be5\u9a71\u52a8\u80fd\u8ba9\u60a8\u7684 C++\u5e94\u7528\u7a0b\u5e8f\u4e0e MongoDB \u4ea4\u4e92\u3002\u00a0\u60a8\u53ef\u4ee5\u4f7f\u7528 Homebrew \u7b49\u5305\u7ba1\u7406\u5668\u5b89\u88c5，\u6216\u901a\u8fc7 GitHub \u4ece\u6e90\u7801\u7f16\u8bd1\u5b89\u88c5\u3002\u00a0\u5b89\u88c5\u5b8c\u6210\u540e，\u5728 C++\u4ee3\u7801\u4e2d\u5305\u542b\u5fc5\u8981\u7684\u5934\u6587\u4ef6\u3002\u00a0\u73b0\u5728，\u60a8\u5c31\u53ef\u4ee5\u4f7f\u7528 MongoDB URI \u5efa\u7acb\u4e0e MongoDB \u670d\u52a1\u5668\u7684\u8fde\u63a5，\u5e76\u5f00\u59cb\u901a\u8fc7 C++\u5e94\u7528\u7a0b\u5e8f\u5728 MongoDB \u6570\u636e\u5e93\u4e2d\u521b\u5efa\u3001\u8bfb\u53d6\u3001\u66f4\u65b0\u548c\u5220\u9664\u6570\u636e\u3002<\/span><\/p>\n

\u4ee5\u4e0b\u662f\u5206\u6b65\u64cd\u4f5c\u6307\u5357：<\/span><\/p>\n

\u5b89\u88c5 MongoDB<\/span><\/p>\n

\u6839\u636e\u60a8\u4f7f\u7528\u7684\u64cd\u4f5c\u7cfb\u7edf，\u5b89\u88c5 MongoDB \u7684\u8fc7\u7a0b\u53ef\u80fd\u6709\u6240\u4e0d\u540c\u3002\u00a0\u60a8\u53ef\u4ee5\u5728 MongoDB \u6587\u6863\u4e2d\u627e\u5230\u9488\u5bf9\u60a8\u7279\u5b9a\u7cfb\u7edf\u7684\u8be6\u7ec6\u8bf4\u660e\u3002\u00a0\u4ee5\u4e0b\u662f\u5728\u57fa\u4e8e Unix \u7684\u7cfb\u7edf\u4e0a\u7684\u5b89\u88c5\u6b65\u9aa4：<\/span><\/p>\n

\u66f4\u65b0\u7cfb\u7edf\u7684\u8f6f\u4ef6\u5305\u6570\u636e\u5e93\u3002<\/span><\/p>\n

sudo apt-get update<\/p>\n

\u5b89\u88c5 MongoDB\u3002<\/span><\/p>\n

sudo apt-get install -y mongodb<\/p>\n

\u4e3a\u786e\u4fdd MongoDB \u80fd\u968f\u670d\u52a1\u5668\u81ea\u52a8\u542f\u52a8\u548c\u91cd\u542f，\u53ef\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4：<\/span><\/p>\n

sudo systemctl enable mongodb<\/p>\n

\u5b89\u88c5 MongoDB C++\u9a71\u52a8<\/span><\/p>\n

MongoDB C++\u9a71\u52a8\u7a0b\u5e8f\u4f7f\u60a8\u7684 C++\u5e94\u7528\u7a0b\u5e8f\u80fd\u591f\u4e0e MongoDB \u8fdb\u884c\u4ea4\u4e92\u3002BSON \u662f\u7c7b JSON \u6587\u6863\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u5f62\u5f0f，\u5728\u5b58\u50a8\u548c\u8bbf\u95ee\u6570\u636e\u65f6\u4f7f\u7528\u3002<\/span><\/p>\n

\u4ee5\u4e0b\u662f\u5177\u4f53\u6b65\u9aa4：<\/span><\/p>\n

\u9996\u5148，\u5b89\u88c5\u6784\u5efa\u9a71\u52a8\u7a0b\u5e8f\u6240\u9700\u7684\u8f6f\u4ef6\u5305：<\/span><\/p>\n

sudo apt-get install build-essential libboost-filesystem-dev libboost-program-options-dev libboost-system-dev libboost-thread-dev<\/p>\n

\u63a5\u4e0b\u6765，\u514b\u9686 MongoDB C++\u9a71\u52a8\u4ed3\u5e93：<\/span><\/p>\n

git clone https:\/\/github.com\/mongodb\/mongo-cxx-driver.git<\/p>\n

\u8fdb\u5165\u76ee\u5f55\u5e76\u7f16\u8bd1\u9a71\u52a8：<\/span><\/p>\n

cd mongo-cxx-driver\/build
\ncmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=\/usr\/local ..
\nmake EP_mnmlstc_core
\nsudo make install<\/p>\n

\u6700\u540e，\u60a8\u5c31\u53ef\u4ee5\u5728 C++\u7a0b\u5e8f\u4e2d\u4f7f\u7528 MongoDB \u4e86\u3002<\/span><\/p>\n

\u8fde\u63a5 MongoDB \u7684\u793a\u4f8b\u7a0b\u5e8f<\/span><\/h2>\n

\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684 C++\u7a0b\u5e8f，\u7528\u4e8e\u8fde\u63a5\u540c\u4e00\u53f0\u673a\u5668\u4e0a\u8fd0\u884c\u7684 MongoDB \u5b9e\u4f8b：<\/span><\/p>\n

#include <bsoncxx\/json.hpp>
\n#include <mongocxx\/client.hpp>
\n#include <mongocxx\/stdx.hpp>
\n#include <mongocxx\/uri.hpp>
\nusing bsoncxx::builder::stream::close_document;
\nusing bsoncxx::builder::stream::open_document;
\nusing bsoncxx::builder::stream::document;
\nint main(int, char**) {
\n mongocxx::instance inst{};
\n mongocxx::client conn{mongocxx::uri{}};
\n auto collection = conn["testdb"]["testcollection"];
\n document builder{};
\n builder << "name" << "MongoDB" << "type" << "database" << "count" << 1
\n << "versions" << bsoncxx::builder::stream::open_array
\n << "v3.2" << "v3.0" << "v2.6"
\n << close_array
\n << "info" << open_document << "x" << 203 << "y" << 102 << close_document;<\/p>\n

collection.insert_one(builder.view());
\n auto cursor = collection.find({});
\n for (auto&& doc : cursor) {
\n std::cout << bsoncxx::to_json(doc) << std::endl;
\n }
\n}<\/p>\n

\u8be5\u7a0b\u5e8f\u8fde\u63a5\u81f3 MongoDB \u5b9e\u4f8b，\u5411\u96c6\u5408\u4e2d\u63d2\u5165\u6587\u6863，\u968f\u540e\u68c0\u7d22\u5e76\u6253\u5370\u8be5\u6587\u6863\u3002\u00a0\u9700\u6ce8\u610f，\u6b64\u4ee3\u7801\u8981\u6b63\u5e38\u8fd0\u884c，MongoDB \u5fc5\u987b\u5728\u540c\u4e00\u673a\u5668（localhost）\u7684\u6807\u51c6\u7aef\u53e3（27017）\u4e0a\u8fd0\u884c\u3002\u00a0\u82e5\u60a8\u7684 MongoDB \u5b9e\u4f8b\u8fd0\u884c\u4e8e\u4e0d\u540c\u4f4d\u7f6e，\u5219\u9700\u5728\u521b\u5efa\u5ba2\u6237\u7aef\u65f6\u63d0\u4f9b\u6b63\u786e\u7684\u8fde\u63a5 URI\u3002<\/span><\/p>\n

\u8fd9\u4e9b\u662f\u5728 C++\u73af\u5883\u4e2d\u8fd0\u884c MongoDB \u5fc5\u987b\u91c7\u53d6\u7684\u5173\u952e\u4e3b\u8981\u6b65\u9aa4\u3002\u00a0\u4ece\u6b64\u523b\u8d77，\u60a8\u5c06\u80fd\u591f\u5f00\u59cb\u6784\u5efa\u66f4\u590d\u6742\u7684\u5e94\u7528\u7a0b\u5e8f，\u8fd9\u4e9b\u7a0b\u5e8f\u53ef\u4ee5\u8bfb\u53d6\u3001\u5199\u5165\u3001\u66f4\u65b0\u548c\u5220\u9664 MongoDB \u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002<\/span><\/p>\n

\u5168\u6808\u5e94\u7528\u7684\u6570\u636e\u5e93\u67b6\u6784<\/span><\/h2>\n

MongoDB \u4f7f\u7528 BSON（\u4e00\u79cd\u7c7b\u4f3c JSON \u6587\u6863\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u5f62\u5f0f）\u6765\u5b58\u50a8\u6570\u636e\u3002\u00a0\u4e0e SQL \u6570\u636e\u5e93\u4e0d\u540c，MongoDB \u662f\u65e0\u6a21\u5f0f\u7684\u3002\u00a0\u8fd9\u610f\u5473\u7740\u540c\u4e00\u96c6\u5408\u4e2d\u7684\u6587\u6863\u4e0d\u9700\u8981\u5177\u6709\u76f8\u540c\u7684\u5b57\u6bb5\u96c6，\u5e76\u4e14\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u5728\u96c6\u5408\u5185\u7684\u4e0d\u540c\u6587\u6863\u95f4\u53ef\u4ee5\u6709\u6240\u4e0d\u540c\u3002<\/span><\/p>\n

\u5c3d\u7ba1\u5982\u6b64，\u4e3a\u4e86\u83b7\u5f97\u6700\u4f73\u6027\u80fd，\u7cbe\u5fc3\u8bbe\u8ba1\u6570\u636e\u6a21\u578b\u4ecd\u7136\u81f3\u5173\u91cd\u8981\u3002\u00a0\u5728 MongoDB \u4e2d，\u60a8\u5e94\u8be5\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u6570\u636e\u8bbf\u95ee\u6a21\u5f0f，\u5728\u5d4c\u5165\u5b50\u6587\u6863\u548c\u521b\u5efa\u65b0\u96c6\u5408\u4e4b\u95f4\u5bfb\u6c42\u5e73\u8861\u3002<\/span><\/p>\n

\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5047\u8bbe\u7684\u535a\u5ba2\u5e94\u7528\u7684 MongoDB \u6a21\u5f0f\u793a\u4f8b：<\/span><\/p>\n

{
\n "user": {
\n "username": "john_doe",
\n "email": "john@myblogapp.com",
\n "password": "hashed_password",
\n "profiles": [
\n {
\n "platform": "twitter",
\n "handle": "@johndoe"
\n },
\n {
\n "platform": "instagram",
\n "handle": "@johndoeig"
\n }
\n ]
\n },
\n "posts": [
\n {
\n "title": "My first blog post",
\n "content": "This is my first blog post",
\n "user": "john_doe",
\n "comments": [
\n {
\n "user": "commenter1",
\n "content": "Great post!",
\n "timestamp": "2023-07-01T14:00:00Z"
\n },
\n {
\n "user": "commenter2",
\n "content": "Thanks for sharing!",
\n "timestamp": "2023-07-01T15:00:00Z"
\n }
\n ],
\n "tags": ["intro", "first", "blog"],
\n "published_date": "2023-07-01T12:00:00Z"
\n }
\n ]
\n}<\/p>\n

\u5728\u6b64\u67b6\u6784\u4e2d：<\/span><\/p>\n

\u25cf\u00a0\u6bcf\u4e2a\u7528\u6237\u62e5\u6709\u7528\u6237\u540d\u3001\u7535\u5b50\u90ae\u7bb1\u3001\u54c8\u5e0c\u5bc6\u7801\u4ee5\u53ca\u5305\u542b\u793e\u4ea4\u5a92\u4f53\u8d26\u53f7\u7684 profiles \u6570\u7ec4\u3002<\/span><\/p>\n

\u25cf\u00a0\u5e16\u5b50\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d，\u6bcf\u4e2a\u5e16\u5b50\u5305\u542b\u6807\u9898\u3001\u5185\u5bb9\u3001\u4f5c\u8005\u7528\u6237\u540d\u3001\u8bc4\u8bba\u3001\u6807\u7b7e\u548c\u53d1\u5e03\u65e5\u671f\u3002<\/span><\/p>\n

\u25cf\u00a0\u8bc4\u8bba\u5b58\u50a8\u5728\u6bcf\u4e2a\u5e16\u5b50\u7684\u6570\u7ec4\u4e2d，\u5305\u542b\u8bc4\u8bba\u8005\u7528\u6237\u540d\u3001\u8bc4\u8bba\u5185\u5bb9\u548c\u8bc4\u8bba\u65f6\u95f4\u6233\u3002<\/span><\/p>\n

\u8fd9\u79cd\u8bbe\u8ba1\u5c06\u76f8\u5173\u6570\u636e\u5d4c\u5165\u5230\u5355\u4e00\u6587\u6863\u4e2d，\u53ef\u901a\u8fc7\u4e00\u6b21\u67e5\u8be2\u83b7\u53d6\u3002\u00a0\u8fd9\u79cd\u65b9\u5f0f\u7279\u522b\u9002\u5408\u9700\u8981\u9891\u7e41\u540c\u65f6\u8bbf\u95ee\u7684\u6570\u636e（\u5982\u7528\u6237\u8d44\u6599\u6216\u535a\u5ba2\u8bc4\u8bba），\u4e14\u9002\u7528\u4e8e\u4e0d\u4f1a\u5bfc\u81f4\u6570\u7ec4\u65e0\u9650\u589e\u957f\u7684\u4e00\u5bf9\u591a\u5173\u7cfb\u3002\u00a0\u82e5\u5173\u7cfb\u4f1a\u5bfc\u81f4\u6570\u636e\u65e0\u9650\u589e\u957f，\u5219\u66f4\u9002\u5408\u4f7f\u7528\u5f15\u7528\u548c\u72ec\u7acb\u96c6\u5408\u3002\u00a0\u5177\u4f53\u51b3\u7b56\u9700\u6839\u636e\u60a8\u7684\u4f7f\u7528\u573a\u666f\u53ca\u5e94\u7528\u7a0b\u5e8f\u4e0e\u6570\u636e\u7684\u4ea4\u4e92\u65b9\u5f0f\u800c\u5b9a\u3002<\/span><\/p>\n

\u6267\u884c CRUD \u64cd\u4f5c<\/span><\/h2>\n

CRUD \u64cd\u4f5c\u662f\u4efb\u4f55\u6d89\u53ca\u6301\u4e45\u5316\u5b58\u50a8\u7684\u5e94\u7528\u7a0b\u5e8f\u7684\u57fa\u7840\u3002CRUD \u4ee3\u8868\u521b\u5efa(Create)\u3001\u8bfb\u53d6(Read)\u3001\u66f4\u65b0(Update)\u548c\u5220\u9664(Delete)\u2014\u2014\u8fd9\u662f\u5bf9\u4efb\u4f55\u6301\u4e45\u5316\u5b58\u50a8\u7684\u56db\u79cd\u57fa\u672c\u64cd\u4f5c\u3002<\/span><\/p>\n

\u8ba9\u6211\u4eec\u4ee5\u535a\u5ba2\u5e94\u7528\u4e3a\u4f8b，\u770b\u770b\u5982\u4f55\u4f7f\u7528 C++ MongoDB \u9a71\u52a8\u5728 MongoDB \u4e2d\u6267\u884c\u8fd9\u4e9b\u64cd\u4f5c：<\/span><\/p>\n

\"\"<\/p>\n

\u56fe 5.1 MongoDB \u7684 CRUD \u64cd\u4f5c<\/span><\/p>\n

\u521b\u5efa<\/span><\/p>\n

\u5728 MongoDB \u4e2d\u63d2\u5165\u65b0\u6587\u6863\u4f7f\u7528 insert_one \u6216 insert_many \u51fd\u6570\u5b9e\u73b0\u3002<\/span><\/p>\n

\u521b\u5efa\u65b0\u7528\u6237：<\/span><\/p>\n

mongocxx::collection user_collection = db["users"];
\nbsoncxx::builder::stream::document user_doc{};
\nuser_doc << "username" << "new_user"
\n << "email" << "new_user@myblogapp.com"
\n << "password" << "hashed_password";
\nuser_collection.insert_one(user_doc.view());<\/p>\n

\u4e0a\u8ff0\u4ee3\u7801\u7247\u6bb5\u5c55\u793a\u4e86\u5982\u4f55\u5411'users'\u96c6\u5408\u6dfb\u52a0\u65b0\u7528\u6237\u3002\u00a0\u6211\u4eec\u4f7f\u7528\u6784\u5efa\u5668 API \u521b\u5efa BSON \u6587\u6863，\u7136\u540e\u901a\u8fc7 insert_one \u51fd\u6570\u63d2\u5165\u8be5\u6587\u6863\u3002<\/span><\/p>\n

\u8bfb\u53d6<\/span><\/p>\n

\u8981\u4ece MongoDB \u96c6\u5408\u4e2d\u8bfb\u53d6\u6587\u6863，\u6211\u4eec\u4f7f\u7528 find \u51fd\u6570\u3002<\/span><\/p>\n

\u6309\u7528\u6237\u540d\u67e5\u627e\u7528\u6237：<\/span><\/p>\n

bsoncxx::builder::stream::document filter_builder;
\nfilter_builder << "username" << "new_user";
\nbsoncxx::stdx::optional<bsoncxx::document::value> maybe_result = user_collection.find_one(filter_builder.view());
\nif(maybe_result) {
\n std::cout << bsoncxx::to_json(*maybe_result) << "\\\\n";
\n}<\/p>\n

\u5728\u4e0a\u8ff0\u4ee3\u7801\u7247\u6bb5\u4e2d，\u6211\u4eec\u6784\u5efa\u4e86\u4e00\u4e2a\u7528\u6237\u540d\u4e3a"new_user"\u7684\u7b5b\u9009\u6587\u6863，\u7136\u540e\u5c06\u8be5\u7b5b\u9009\u6761\u4ef6\u4f20\u9012\u7ed9 find_one \u51fd\u6570\u4ee5\u67e5\u627e\u5339\u914d\u7684\u6587\u6863\u3002<\/span><\/p>\n

\u66f4\u65b0<\/span><\/p>\n

\u5728 MongoDB \u4e2d\u66f4\u65b0\u6587\u6863，\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 update_one \u6216 update_many \u51fd\u6570\u3002<\/span><\/p>\n

\u8981\u66f4\u6539\u7528\u6237\u7684\u7535\u5b50\u90ae\u4ef6：<\/span><\/p>\n

bsoncxx::builder::stream::document update_doc;
\nupdate_doc << "$set" << bsoncxx::builder::stream::open_document
\n << "email" << "new_email@myblogapp.com"
\n << bsoncxx::builder::stream::close_document;
\nuser_collection.update_one(filter_builder.view(), update_doc.view());<\/p>\n

\u6211\u4eec\u6b63\u5728\u521b\u5efa\u4e00\u4e2a\u66f4\u65b0\u6587\u6863，\u4f7f\u7528$set \u64cd\u4f5c\u7b26\u6765\u66f4\u6539\u5339\u914d\u6587\u6863\u7684 email \u5b57\u6bb5\u3002<\/span><\/p>\n

\u5220\u9664<\/span><\/p>\n

\u8981\u5220\u9664\u6587\u6863，\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 delete_one \u6216 delete_many \u51fd\u6570\u3002<\/span><\/p>\n

\u5220\u9664\u7528\u6237：<\/span><\/p>\n

user_collection.delete_one(filter_builder.view());<\/p>\n

\u8fd9\u884c\u4ee3\u7801\u4f1a\u4ece'users'\u96c6\u5408\u4e2d\u5220\u9664\u7528\u6237\u540d\u4e3a"new_user"\u7684\u7528\u6237\u3002<\/span><\/p>\n

\u4e0a\u8ff0\u6240\u6709\u64cd\u4f5c\u4e2d，\u4e3a\u7b80\u6d01\u8d77\u89c1\u7701\u7565\u4e86\u9519\u8bef\u68c0\u67e5，\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d，\u60a8\u5e94\u8be5\u59cb\u7ec8\u68c0\u67e5\u8fd9\u4e9b\u64cd\u4f5c\u7684\u7ed3\u679c\u662f\u5426\u5b58\u5728\u9519\u8bef\u6216\u5f02\u5e38\u3002\u00a0\u8fd9\u4e9b\u64cd\u4f5c\u90fd\u662f\u5f02\u6b65\u7684，C++ MongoDB \u9a71\u52a8\u63d0\u4f9b\u4e86\u591a\u79cd\u5904\u7406\u8fd9\u79cd\u5f02\u6b65\u6027\u7684\u65b9\u6cd5\u3002\u00a0\u5bf9\u4e8e\u590d\u6742\u5e94\u7528，\u901a\u5e38\u4f1a\u4f7f\u7528\u805a\u5408\u51fd\u6570，\u5b83\u5141\u8bb8\u5728\u670d\u52a1\u5668\u7aef\u8fdb\u884c\u590d\u6742\u7684\u6570\u636e\u64cd\u4f5c\u548c\u8f6c\u6362\u3002<\/span><\/p>\n

\u6267\u884c\u590d\u6742\u67e5\u8be2：\u805a\u5408\u4e0e\u7d22\u5f15<\/span><\/h2>\n

\u805a\u5408\u4e0e\u7d22\u5f15\u662f MongoDB \u7684\u4e24\u5927\u5f3a\u5927\u529f\u80fd，\u4f7f\u6211\u4eec\u80fd\u591f\u6267\u884c\u590d\u6742\u67e5\u8be2\u3001\u7b5b\u9009\u548c\u6392\u5e8f\u6570\u636e，\u5e76\u63d0\u9ad8\u6570\u636e\u5e93\u64cd\u4f5c\u6548\u7387\u3002<\/span><\/p>\n

\u6267\u884c\u805a\u5408\u64cd\u4f5c<\/span><\/p>\n

MongoDB \u4e2d\u7684\u805a\u5408\u662f\u5bf9\u96c6\u5408\u4e2d\u6587\u6863\u6267\u884c\u590d\u6742\u6570\u636e\u5206\u6790\u7684\u4e00\u79cd\u65b9\u5f0f\u3002\u00a0\u5b83\u63d0\u4f9b\u4e86\u5904\u7406\u6570\u636e\u8bb0\u5f55\u5e76\u8fd4\u56de\u8ba1\u7b97\u7ed3\u679c\u7684\u65b9\u6cd5\u3002\u00a0\u805a\u5408\u64cd\u4f5c\u53ef\u4ee5\u5c06\u591a\u4e2a\u6587\u6863\u4e2d\u7684\u503c\u5206\u7ec4，\u5e76\u5bf9\u5206\u7ec4\u540e\u7684\u6570\u636e\u6267\u884c\u5404\u79cd\u64cd\u4f5c\u4ee5\u8fd4\u56de\u5355\u4e00\u7ed3\u679c\u3002<\/span><\/p>\n

\u4f8b\u5982，\u5728\u4e00\u4e2a\u535a\u5ba2\u5e94\u7528\u4e2d，\u60a8\u53ef\u80fd\u60f3\u77e5\u9053\u6bcf\u4e2a\u7528\u6237\u53d1\u8868\u4e86\u591a\u5c11\u7bc7\u6587\u7ae0\u3002\u00a0\u8fd9\u53ef\u4ee5\u901a\u8fc7 MongoDB \u7684\u805a\u5408\u6846\u67b6\u5b9e\u73b0\u3002$group \u9636\u6bb5\u4f1a\u6309\u7167\u6307\u5b9a\u7684\u6807\u8bc6\u8868\u8fbe\u5f0f\u5bf9\u8f93\u5165\u6587\u6863\u8fdb\u884c\u5206\u7ec4，\u5e76\u4e3a\u6bcf\u4e2a\u552f\u4e00\u5206\u7ec4\u8f93\u51fa\u4e00\u4e2a\u6587\u6863\u3002\u00a0\u7136\u540e\u4f7f\u7528$sum \u64cd\u4f5c\u7b26\u4e3a\u6bcf\u4e2a\u7ec4\u9012\u589e\u8ba1\u6570\u3002<\/span><\/p>\n

\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u5982\u4e0b：<\/span><\/p>\n

mongocxx::collection posts_collection = db["posts"];
\nbsoncxx::builder::stream::document group_stage;
\ngroup_stage << "$group" << bsoncxx::builder::stream::open_document
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<< "_id" << "$username"
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<< "count" << bsoncxx::builder::stream::open_document << "$sum" << 1
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<< bsoncxx::builder::stream::close_document
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<< bsoncxx::builder::stream::close_document;
\nmongocxx::pipeline p{};
\np.group(group_stage.view());
\nauto cursor = posts_collection.aggregate(p, mongocxx::options::aggregate{});
\nfor(auto doc : cursor) {
\n\u00a0 \u00a0std::cout << bsoncxx::to_json(doc) << "\\\\n";
\n}<\/p>\n

\u4e0a\u8ff0\u4ee3\u7801\u7247\u6bb5\u4e2d，\u6211\u4eec\u4f7f\u7528\u4e86 MongoDB \u7684\u805a\u5408\u6846\u67b6\u3002$group \u9636\u6bb5\u901a\u8fc7\u6307\u5b9a\u7684_id \u8868\u8fbe\u5f0f（\u672c\u4f8b\u4e2d\u4e3a username \u5b57\u6bb5）\u5bf9\u8f93\u5165\u6587\u6863\u8fdb\u884c\u5206\u7ec4，\u5e76\u4e3a\u6bcf\u4e2a\u4e0d\u540c\u7684\u5206\u7ec4\u8f93\u51fa\u4e00\u4e2a\u6587\u6863\u3002$sum \u8868\u8fbe\u5f0f\u7528\u4e8e\u9012\u589e\u6bcf\u4e2a\u7ec4\u7684\u8ba1\u6570\u3002<\/span><\/p>\n

\u521b\u5efa\u7d22\u5f15<\/span><\/p>\n

MongoDB \u4e2d\u7684\u7d22\u5f15\u4e0e\u5176\u4ed6\u6570\u636e\u5e93\u7cfb\u7edf\u4e2d\u7684\u7d22\u5f15\u5177\u6709\u76f8\u540c\u7684\u4f5c\u7528\u3002\u00a0\u7d22\u5f15\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784，\u5b83\u4ee5\u6613\u4e8e\u904d\u5386\u7684\u5f62\u5f0f\u4fdd\u5b58\u96c6\u5408\u6570\u636e\u7684\u5b50\u96c6\u3002\u00a0\u8be5\u7d22\u5f15\u5b58\u50a8\u7279\u5b9a\u5b57\u6bb5\u6216\u5b57\u6bb5\u96c6\u7684\u503c，\u5e76\u6309\u7d22\u5f15\u4e2d\u6307\u5b9a\u7684\u5b57\u6bb5\u503c\u6392\u5e8f\u3002<\/span><\/p>\n

\u521b\u5efa\u7d22\u5f15\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u641c\u7d22\u64cd\u4f5c\u7684\u6027\u80fd\u3002\u00a0\u4f8b\u5982，\u5728"username"\u5b57\u6bb5\u4e0a\u521b\u5efa\u5347\u5e8f\u7d22\u5f15\u610f\u5473\u7740 MongoDB \u53ef\u4ee5\u4f7f\u7528\u8be5\u7d22\u5f15\u6765\u7b5b\u9009 username \u5b57\u6bb5\u7684\u67e5\u8be2，\u4ece\u800c\u52a0\u5feb\u8fd9\u4e9b\u67e5\u8be2\u901f\u5ea6\u3002<\/span><\/p>\n

\u8ba9\u6211\u4eec\u5728 users \u96c6\u5408\u7684 username \u5b57\u6bb5\u4e0a\u521b\u5efa\u5982\u4e0b\u7d22\u5f15：<\/span><\/p>\n

bsoncxx::builder::stream::document index_builder;
\nindex_builder << "username" << 1;
\nuser_collection.create_index(index_builder.view(), {});<\/p>\n

\u5728\u4e0a\u8ff0\u4ee3\u7801\u7247\u6bb5\u4e2d，\u6211\u4eec\u6b63\u5728"username"\u5b57\u6bb5\u4e0a\u521b\u5efa\u4e00\u4e2a\u5347\u5e8f\u7d22\u5f15\u3002\u00a0\u8fd9\u610f\u5473\u7740 MongoDB \u53ef\u4ee5\u4f7f\u7528\u8be5\u7d22\u5f15\u6765\u7b5b\u9009 username \u5b57\u6bb5\u7684\u67e5\u8be2，\u4ece\u800c\u663e\u8457\u63d0\u9ad8\u8fd9\u4e9b\u67e5\u8be2\u7684\u901f\u5ea6\u3002<\/span><\/p>\n

\u7d22\u5f15\u5b58\u5728\u4e00\u4e9b\u6743\u8861，\u5b83\u4eec\u53ef\u4ee5\u6781\u5927\u63d0\u9ad8\u8bfb\u53d6\u901f\u5ea6，\u4f46\u4f1a\u964d\u4f4e\u5199\u5165\u901f\u5ea6，\u56e0\u4e3a\u6bcf\u6b21\u63d2\u5165\u6216\u66f4\u65b0\u6587\u6863\u65f6 MongoDB \u90fd\u9700\u8981\u66f4\u65b0\u7d22\u5f15\u3002\u00a0\u91cd\u8981\u7684\u662f\u627e\u5230\u5408\u9002\u7684\u5e73\u8861\u70b9，\u53ea\u4e3a\u7ecf\u5e38\u67e5\u8be2\u7684\u5b57\u6bb5\u521b\u5efa\u7d22\u5f15\u3002<\/span><\/p>\n

\u603b\u7ed3<\/span><\/h2>\n

\u672c\u7ae0\u6211\u4eec\u6df1\u5165\u63a2\u8ba8\u4e86\u6570\u636e\u5e93\u7684\u4e16\u754c，\u7279\u522b\u805a\u7126\u4e8e MongoDB \u53ca\u5176\u5982\u4f55\u4e0e\u6211\u4eec\u7528 C++\u7f16\u5199\u7684\u540e\u7aef\u7f16\u7a0b\u8fdb\u884c\u96c6\u6210\u3002\u00a0\u9996\u5148，\u6211\u4eec\u7740\u91cd\u7406\u89e3\u4e86\u6570\u636e\u5e93\u5728\u5e94\u7528\u5f00\u53d1\u4e2d\u7684\u57fa\u7840\u4f5c\u7528，\u4ee5\u53ca\u5728\u540e\u7aef\u6267\u884c\u7684\u5404\u79cd\u64cd\u4f5c\u3002\u00a0\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf，\u5c24\u5176\u662f MongoDB，\u662f\u73b0\u4ee3\u5168\u6808\u5e94\u7528\u4e0d\u53ef\u6216\u7f3a\u7684\u6838\u5fc3\u7ec4\u4ef6\u3002\u00a0\u8fd9\u4e00\u7ec4\u4ef6\u4e4b\u6240\u4ee5\u5fc5\u8981，\u662f\u56e0\u4e3a\u5b83\u80fd\u591f\u5b58\u50a8\u3001\u68c0\u7d22\u548c\u64cd\u4f5c\u9a71\u52a8\u7528\u6237\u754c\u9762\u6240\u9700\u7684\u6570\u636e\u3002<\/span><\/p>\n

\u6211\u4eec\u4ee5\u517c\u5bb9 C++\u5f00\u53d1\u73af\u5883\u7684\u65b9\u5f0f\u7ee7\u7eed\u4e86 MongoDB \u7684\u5b89\u88c5\u548c\u914d\u7f6e\u8fc7\u7a0b\u3002\u00a0\u60a8\u5df2\u7ecf\u4e86\u89e3\u5230 MongoDB \u4f5c\u4e3a NoSQL \u6570\u636e\u5e93，\u5728\u5176\u4f7f\u7528\u7684\u6570\u636e\u7ed3\u6784\u65b9\u9762\u5177\u6709\u7075\u6d3b\u6027，\u540c\u65f6\u5177\u5907\u53ef\u6269\u5c55\u6027\u548c\u6570\u636e\u5e93\u67e5\u8be2\u80fd\u529b\u3002\u00a0\u6211\u4eec\u8ba8\u8bba\u4e86 MongoDB \u4e2d\u7684\u6a21\u5f0f\u8bbe\u8ba1，\u91cd\u70b9\u63a2\u8ba8\u4e86\u5728\u53ef\u80fd\u60c5\u51b5\u4e0b\u4f18\u5148\u91c7\u7528\u975e\u89c4\u8303\u5316\u6216\u6587\u6863\u5d4c\u5165\u7684\u65b9\u5f0f\u3002\u00a0\u6211\u4eec\u8ba4\u8bc6\u5230 MongoDB \u6a21\u5f0f\u5728\u6027\u80fd\u548c\u53ef\u6269\u5c55\u6027\u65b9\u9762\u76f8\u6bd4\u4f20\u7edf\u5173\u7cfb\u578b\u6570\u636e\u5e93\u6240\u5177\u6709\u7684\u4f18\u52bf\u3002\u00a0\u901a\u8fc7\u4e00\u4e2a\u535a\u5ba2\u5e94\u7528\u793a\u4f8b，\u6211\u4eec\u63a2\u8ba8\u4e86\u6a21\u5f0f\u8bbe\u8ba1\u7684\u8003\u91cf\u56e0\u7d20，\u8fd9\u4e3a\u540e\u7eed\u7684\u6570\u636e\u5e93\u4ea4\u4e92\u5960\u5b9a\u4e86\u575a\u5b9e\u57fa\u7840\u3002<\/span><\/p>\n

\u5728 MongoDB \u5b9e\u73b0\u7684\u6700\u540e\u4e00\u6b65\u4e2d，\u6211\u4eec\u6df1\u5165\u63a2\u8ba8\u4e86 CRUD \u64cd\u4f5c（\u5373\u521b\u5efa\u3001\u8bfb\u53d6\u3001\u66f4\u65b0\u548c\u5220\u9664）\u3002\u00a0\u4e3a\u4e86\u5e2e\u52a9\u60a8\u7406\u89e3\u540e\u7aef\u4e0e\u6570\u636e\u5e93\u7684\u4ea4\u4e92，\u6211\u4eec\u5206\u89e3\u4e86\u8fd9\u4e9b\u57fa\u7840\u64cd\u4f5c，\u5e76\u63d0\u4f9b\u4e86\u5206\u6b65\u793a\u4f8b\u53ca\u4ee3\u7801\u7247\u6bb5\u3002\u00a0\u968f\u540e\u6211\u4eec\u8ba8\u8bba\u4e86\u5305\u542b\u805a\u5408\u4e0e\u7d22\u5f15\u7684\u590d\u6742\u67e5\u8be2\u3002\u00a0\u901a\u8fc7\u591a\u4e2a\u5b9e\u9645\u6848\u4f8b，\u6211\u4eec\u638c\u63e1\u4e86\u5982\u4f55\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u548c\u64cd\u4f5c，\u4ee5\u53ca\u7d22\u5f15\u5982\u4f55\u901a\u8fc7\u4e0d\u540c\u5e94\u7528\u573a\u666f\u663e\u8457\u63d0\u5347\u67e5\u8be2\u6027\u80fd\u3002\u00a0\u8fd9\u4e9b\u9ad8\u7ea7\u6570\u636e\u5e93\u64cd\u4f5c\u7684\u5e94\u7528\u4e3a\u540e\u7aef\u5f00\u53d1\u6d41\u7a0b\u5f00\u8f9f\u4e86\u65b0\u9014\u5f84，\u80fd\u66f4\u9ad8\u6548\u5730\u5b9e\u73b0\u6570\u636e\u64cd\u4f5c\u4e0e\u68c0\u7d22\u3002\u00a0\u672c\u7ae0\u6240\u83b7\u77e5\u8bc6\u4e3a\u5f00\u53d1\u6d89\u53ca\u6570\u636e\u5e93\u4ea4\u4e92\u4e0e\u64cd\u4f5c\u7684\u540e\u7aef\u5e94\u7528\u5960\u5b9a\u4e86\u575a\u5b9e\u57fa\u7840\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

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