{"id":2439,"date":"2025-03-06T23:26:18","date_gmt":"2025-03-06T15:26:18","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=2439"},"modified":"2025-03-06T23:26:18","modified_gmt":"2025-03-06T15:26:18","slug":"mongodb-%e6%9b%b4%e6%96%b0%e6%96%87%e6%a1%a3","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/06\/mongodb-%e6%9b%b4%e6%96%b0%e6%96%87%e6%a1%a3\/","title":{"rendered":"MongoDB \u66f4\u65b0\u6587\u6863"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728 MongoDB \u4e2d\uff0c\u66f4\u65b0\u6587\u6863\u662f\u4fee\u6539\u73b0\u6709\u6587\u6863\u6570\u636e\u7684\u8fc7\u7a0b\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 MongoDB Shell \u6216\u8005\u7f16\u7a0b\u8bed\u8a00\u7684 MongoDB \u9a71\u52a8\u7a0b\u5e8f\u6765\u66f4\u65b0\u6587\u6863\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. \u4f7f\u7528 Mongo Shell \u66f4\u65b0\u6587\u6863<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>updateOne()<\/code>\u3001<code>updateMany()<\/code> \u6216 <code>replaceOne()<\/code> \u6765\u66f4\u65b0\u6587\u6863\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>updateOne()<\/code><\/strong>\uff1a\u66f4\u65b0\u5339\u914d\u6761\u4ef6\u7684\u7b2c\u4e00\u4e2a\u6587\u6863\u3002<\/li>\n\n\n\n<li><strong><code>updateMany()<\/code><\/strong>\uff1a\u66f4\u65b0\u6240\u6709\u5339\u914d\u6761\u4ef6\u7684\u6587\u6863\u3002<\/li>\n\n\n\n<li><strong><code>replaceOne()<\/code><\/strong>\uff1a\u5b8c\u5168\u66ff\u6362\u4e00\u4e2a\u6587\u6863\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u6b65\u9aa4\uff1a<\/strong><\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8fde\u63a5\u5230 MongoDB \u5b9e\u4f8b\uff1a<\/strong><br>\u6253\u5f00\u7ec8\u7aef\u5e76\u8fde\u63a5\u5230 MongoDB \u5b9e\u4f8b\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   mongo<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u9009\u62e9\u6570\u636e\u5e93\uff1a<\/strong><br>\u4f7f\u7528 <code>use<\/code> \u547d\u4ee4\u5207\u6362\u5230\u4f60\u8981\u64cd\u4f5c\u7684\u6570\u636e\u5e93\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   use myDatabase<\/code><\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u66f4\u65b0\u5355\u4e2a\u6587\u6863\uff1a<\/strong><br>\u4f7f\u7528 <code>updateOne()<\/code> \u66f4\u65b0\u7b26\u5408\u6761\u4ef6\u7684\u5355\u4e2a\u6587\u6863\u3002\u4f8b\u5982\uff0c\u66f4\u65b0 <code>name<\/code> \u4e3a &#8220;Alice&#8221; \u7684\u6587\u6863\uff0c\u5c06\u5176 <code>age<\/code> \u6539\u4e3a 26\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   db.users.updateOne(\n     { name: \"Alice\" },  \/\/ \u67e5\u627e\u6761\u4ef6\n     { $set: { age: 26 } }  \/\/ \u66f4\u65b0\u64cd\u4f5c\n   )<\/code><\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u66f4\u65b0\u591a\u4e2a\u6587\u6863\uff1a<\/strong><br>\u4f7f\u7528 <code>updateMany()<\/code> \u66f4\u65b0\u6240\u6709\u5339\u914d\u6761\u4ef6\u7684\u6587\u6863\u3002\u4f8b\u5982\uff0c\u5c06\u6240\u6709 <code>age<\/code> \u5927\u4e8e 30 \u7684\u6587\u6863\u7684 <code>city<\/code> \u5b57\u6bb5\u8bbe\u7f6e\u4e3a &#8220;San Francisco&#8221;\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   db.users.updateMany(\n     { age: { $gt: 30 } },  \/\/ \u67e5\u627e\u6761\u4ef6\n     { $set: { city: \"San Francisco\" } }  \/\/ \u66f4\u65b0\u64cd\u4f5c\n   )<\/code><\/pre>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li><strong>\u5b8c\u5168\u66ff\u6362\u6587\u6863\uff1a<\/strong><br>\u4f7f\u7528 <code>replaceOne()<\/code> \u5b8c\u5168\u66ff\u6362\u7b26\u5408\u6761\u4ef6\u7684\u6587\u6863\u3002\u4f8b\u5982\uff0c\u5b8c\u5168\u66ff\u6362 <code>name<\/code> \u4e3a &#8220;Bob&#8221; \u7684\u6587\u6863\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   db.users.replaceOne(\n     { name: \"Bob\" },  \/\/ \u67e5\u627e\u6761\u4ef6\n     { name: \"Bob\", age: 40, city: \"Los Angeles\" }  \/\/ \u5b8c\u5168\u66ff\u6362\u7684\u6587\u6863\u5185\u5bb9\n   )<\/code><\/pre>\n\n\n\n<ol start=\"6\" class=\"wp-block-list\">\n<li><strong>\u786e\u8ba4\u66f4\u65b0\uff1a<\/strong><br>\u4f7f\u7528 <code>find()<\/code> \u67e5\u8be2\u66f4\u65b0\u540e\u7684\u6570\u636e\uff0c\u67e5\u770b\u6587\u6863\u662f\u5426\u5df2\u66f4\u65b0\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>   db.users.find()<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. \u4f7f\u7528 MongoDB \u9a71\u52a8\u7a0b\u5e8f\u66f4\u65b0\u6587\u6863<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f60\u4e5f\u53ef\u4ee5\u901a\u8fc7\u7f16\u7a0b\u8bed\u8a00\u7684 MongoDB \u9a71\u52a8\u7a0b\u5e8f\u6765\u66f4\u65b0\u6587\u6863\u3002\u4ee5\u4e0b\u662f\u901a\u8fc7 <strong>Node.js<\/strong> \u548c <strong>Python<\/strong> \u6765\u66f4\u65b0\u6587\u6863\u7684\u793a\u4f8b\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Node.js \u793a\u4f8b<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\uff0c\u5b89\u88c5 MongoDB Node.js \u9a71\u52a8\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm install mongodb<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7136\u540e\uff0c\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u66f4\u65b0\u6587\u6863\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const { MongoClient } = require('mongodb');\n\n\/\/ MongoDB URI\nconst uri = \"mongodb:\/\/localhost:27017\";\n\n\/\/ \u521b\u5efa MongoDB \u5ba2\u6237\u7aef\nconst client = new MongoClient(uri);\n\nasync function updateDocument() {\n  try {\n    \/\/ \u8fde\u63a5\u5230 MongoDB\n    await client.connect();\n    console.log(\"\u6210\u529f\u8fde\u63a5\u5230 MongoDB\");\n\n    \/\/ \u83b7\u53d6\u6570\u636e\u5e93\n    const db = client.db(\"myDatabase\");\n\n    \/\/ \u66f4\u65b0\u5355\u4e2a\u6587\u6863\n    const result = await db.collection(\"users\").updateOne(\n      { name: \"Alice\" },\n      { $set: { age: 26 } }\n    );\n    console.log(\"\u66f4\u65b0\u7684\u6587\u6863\u6570\u91cf:\", result.modifiedCount);\n\n    \/\/ \u66f4\u65b0\u591a\u4e2a\u6587\u6863\n    const resultMany = await db.collection(\"users\").updateMany(\n      { age: { $gt: 30 } },\n      { $set: { city: \"San Francisco\" } }\n    );\n    console.log(\"\u66f4\u65b0\u7684\u6587\u6863\u6570\u91cf:\", resultMany.modifiedCount);\n\n  } finally {\n    await client.close();\n  }\n}\n\nupdateDocument().catch(console.error);<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Python \u793a\u4f8b<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\uff0c\u5b89\u88c5 <code>pymongo<\/code> \u9a71\u52a8\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>pip install pymongo<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7136\u540e\uff0c\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u66f4\u65b0\u6587\u6863\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from pymongo import MongoClient\n\n# MongoDB URI\nuri = \"mongodb:\/\/localhost:27017\"\n\n# \u521b\u5efa MongoDB \u5ba2\u6237\u7aef\nclient = MongoClient(uri)\n\n# \u83b7\u53d6\u6570\u636e\u5e93\ndb = client&#91;\"myDatabase\"]\n\n# \u66f4\u65b0\u5355\u4e2a\u6587\u6863\nresult = db&#91;\"users\"].update_one(\n    { \"name\": \"Alice\" },\n    { \"$set\": { \"age\": 26 } }\n)\nprint(\"\u66f4\u65b0\u7684\u6587\u6863\u6570\u91cf:\", result.modified_count)\n\n# \u66f4\u65b0\u591a\u4e2a\u6587\u6863\nresult_many = db&#91;\"users\"].update_many(\n    { \"age\": { \"$gt\": 30 } },\n    { \"$set\": { \"city\": \"San Francisco\" } }\n)\nprint(\"\u66f4\u65b0\u7684\u6587\u6863\u6570\u91cf:\", result_many.modified_count)<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. \u66f4\u65b0\u6587\u6863\u64cd\u4f5c\u7b26<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u66f4\u65b0\u6587\u6863\u65f6\uff0cMongoDB \u63d0\u4f9b\u4e86\u4e00\u4e9b\u64cd\u4f5c\u7b26\u6765\u63a7\u5236\u66f4\u65b0\u884c\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>$set<\/code><\/strong>\uff1a\u66f4\u65b0\u6307\u5b9a\u5b57\u6bb5\u7684\u503c\u3002\u5982\u679c\u5b57\u6bb5\u4e0d\u5b58\u5728\uff0c<code>$set<\/code> \u4f1a\u521b\u5efa\u8be5\u5b57\u6bb5\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  db.users.updateOne({ name: \"Alice\" }, { $set: { age: 26 } })<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>$inc<\/code><\/strong>\uff1a\u589e\u52a0\u6307\u5b9a\u5b57\u6bb5\u7684\u503c\u3002\u5982\u679c\u5b57\u6bb5\u4e0d\u5b58\u5728\uff0c<code>$inc<\/code> \u4f1a\u521b\u5efa\u8be5\u5b57\u6bb5\u5e76\u5c06\u5176\u503c\u589e\u52a0\u6307\u5b9a\u503c\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  db.users.updateOne({ name: \"Alice\" }, { $inc: { age: 1 } })<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>$unset<\/code><\/strong>\uff1a\u5220\u9664\u6307\u5b9a\u5b57\u6bb5\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  db.users.updateOne({ name: \"Alice\" }, { $unset: { city: \"\" } })<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>$push<\/code><\/strong>\uff1a\u5411\u6570\u7ec4\u5b57\u6bb5\u6dfb\u52a0\u4e00\u4e2a\u5143\u7d20\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  db.users.updateOne({ name: \"Alice\" }, { $push: { hobbies: \"Reading\" } })<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>$pull<\/code><\/strong>\uff1a\u4ece\u6570\u7ec4\u5b57\u6bb5\u4e2d\u79fb\u9664\u6307\u5b9a\u5143\u7d20\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  db.users.updateOne({ name: \"Alice\" }, { $pull: { hobbies: \"Reading\" } })<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>$addToSet<\/code><\/strong>\uff1a\u5411\u6570\u7ec4\u5b57\u6bb5\u6dfb\u52a0\u4e00\u4e2a\u552f\u4e00\u5143\u7d20\uff08\u4e0d\u91cd\u590d\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  db.users.updateOne({ name: \"Alice\" }, { $addToSet: { hobbies: \"Cycling\" } })<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. \u66f4\u65b0\u6587\u6863\u7684\u6ce8\u610f\u4e8b\u9879<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6279\u91cf\u66f4\u65b0<\/strong>\uff1a\u4f7f\u7528 <code>updateMany()<\/code> \u65f6\uff0cMongoDB \u4f1a\u66f4\u65b0\u6240\u6709\u5339\u914d\u6761\u4ef6\u7684\u6587\u6863\u3002\u53ef\u4ee5\u901a\u8fc7\u67e5\u8be2\u6761\u4ef6\u8c28\u614e\u9009\u62e9\u66f4\u65b0\u7684\u6587\u6863\u3002<\/li>\n\n\n\n<li><strong>\u8fd4\u56de\u7ed3\u679c<\/strong>\uff1a<code>updateOne()<\/code> \u548c <code>updateMany()<\/code> \u64cd\u4f5c\u4f1a\u8fd4\u56de\u4e00\u4e2a\u7ed3\u679c\u5bf9\u8c61\uff0c\u5176\u4e2d\u5305\u542b <code>matchedCount<\/code>\uff08\u5339\u914d\u7684\u6587\u6863\u6570\uff09\u548c <code>modifiedCount<\/code>\uff08\u5b9e\u9645\u66f4\u65b0\u7684\u6587\u6863\u6570\uff09\u3002<\/li>\n\n\n\n<li><strong><code>_id<\/code> \u5b57\u6bb5<\/strong>\uff1a\u4e0d\u80fd\u901a\u8fc7\u66f4\u65b0\u64cd\u4f5c\u4fee\u6539\u6587\u6863\u7684 <code>_id<\/code> \u5b57\u6bb5\u3002\u5982\u679c\u4f60\u60f3\u4fee\u6539 <code>_id<\/code>\uff0c\u5fc5\u987b\u901a\u8fc7 <code>replaceOne()<\/code> \u6765\u5b8c\u5168\u66ff\u6362\u6587\u6863\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u603b\u7ed3<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">MongoDB \u63d0\u4f9b\u4e86\u591a\u79cd\u66f4\u65b0\u6587\u6863\u7684\u65b9\u6cd5\uff0c\u5305\u62ec <code>updateOne()<\/code>\u3001<code>updateMany()<\/code> \u548c <code>replaceOne()<\/code>\u3002\u4f60\u53ef\u4ee5\u6839\u636e\u9700\u8981\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u6765\u66f4\u65b0\u5355\u4e2a\u6587\u6863\u6216\u591a\u4e2a\u6587\u6863\uff0c\u5e76\u7ed3\u5408 MongoDB \u63d0\u4f9b\u7684\u5404\u79cd\u66f4\u65b0\u64cd\u4f5c\u7b26\uff08\u5982 <code>$set<\/code>\u3001<code>$inc<\/code>\u3001<code>$push<\/code> \u7b49\uff09\u6765\u7cbe\u786e\u63a7\u5236\u66f4\u65b0\u5185\u5bb9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 MongoDB \u4e2d\uff0c\u66f4\u65b0\u6587\u6863\u662f\u4fee\u6539\u73b0\u6709\u6587\u6863\u6570\u636e\u7684\u8fc7\u7a0b\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 MongoDB Shell \u6216\u8005\u7f16\u7a0b\u8bed\u8a00 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[77],"tags":[],"class_list":["post-2439","post","type-post","status-publish","format-standard","hentry","category-mongodb"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2439","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=2439"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2439\/revisions"}],"predecessor-version":[{"id":2440,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2439\/revisions\/2440"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=2439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=2439"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=2439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}