{"id":63932,"date":"2024-10-14T03:42:14","date_gmt":"2024-10-13T19:42:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/63932\/"},"modified":"2024-10-14T03:42:15","modified_gmt":"2024-10-13T19:42:15","slug":"mongodb%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8a%9f%e8%83%bd%e4%bd%bf%e7%94%a8%ef%bc%9a%e5%a6%82%e4%bd%95%e5%b0%87%e5%9c%96%e7%89%87%e5%ad%98%e5%85%a5mongodb%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad-%e5%9c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/63932\/","title":{"rendered":"MongoDB\u6578\u64da\u5eab\u529f\u80fd\u4f7f\u7528\uff1a\u5982\u4f55\u5c07\u5716\u7247\u5b58\u5165MongoDB\u6578\u64da\u5eab\u4e2d (\u5716\u7247\u5b58\u5165mongodb\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"mongodb%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8a%9f%e8%83%bd%e4%bd%bf%e7%94%a8%ef%bc%9a%e5%a6%82%e4%bd%95%e5%b0%87%e5%9c%96%e7%89%87%e5%ad%98%e5%85%a5mongodb%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad-EyIAxLaheJ\">MongoDB\u6578\u64da\u5eab\u529f\u80fd\u4f7f\u7528\uff1a\u5982\u4f55\u5c07\u5716\u7247\u5b58\u5165MongoDB\u6578\u64da\u5eab\u4e2d<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cMongoDB\u4f5c\u70ba\u4e00\u7a2e\u6d41\u884c\u7684NoSQL\u6578\u64da\u5eab\uff0c\u56e0\u5176\u9748\u6d3b\u6027\u548c\u53ef\u64f4\u5c55\u6027\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u7279\u5225\u662f\u5728\u8655\u7406\u975e\u7d50\u69cb\u5316\u6578\u64da\u6642\uff0cMongoDB\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u529f\u80fd\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5c07\u5716\u7247\u5b58\u5165MongoDB\u6578\u64da\u5eab\u4e2d\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87mongodb%e5%ad%98%e5%84%b2%e5%9c%96%e7%89%87-EyIAxLaheJ\">\u70ba\u4ec0\u9ebc\u9078\u64c7MongoDB\u5b58\u5132\u5716\u7247<\/h2>\n<p>\u50b3\u7d71\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u901a\u5e38\u4e0d\u9069\u5408\u5b58\u5132\u5927\u578b\u4e8c\u9032\u5236\u6587\u4ef6\uff08\u5982\u5716\u7247\uff09\u3002MongoDB\u5247\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u56e0\u70ba\u5b83\u652f\u6301\u6587\u6a94\u5c0e\u5411\u7684\u6578\u64da\u6a21\u578b\uff0c\u80fd\u5920\u8f15\u9b06\u5730\u5b58\u5132\u548c\u6aa2\u7d22\u5404\u7a2e\u683c\u5f0f\u7684\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528MongoDB\u5b58\u5132\u5716\u7247\u7684\u4e00\u4e9b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>MongoDB\u7684\u6587\u6a94\u7d50\u69cb\u5141\u8a31\u7528\u6236\u4ee5JSON\u683c\u5f0f\u5b58\u5132\u6578\u64da\uff0c\u9019\u4f7f\u5f97\u5b58\u5132\u5716\u7247\u53ca\u5176\u76f8\u95dc\u5143\u6578\u64da\u8b8a\u5f97\u7c21\u55ae\u3002<\/li>\n<li><strong>\u53ef\u64f4\u5c55\u6027\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0cMongoDB\u80fd\u5920\u8f15\u9b06\u64f4\u5c55\uff0c\u652f\u6301\u5927\u898f\u6a21\u7684\u6578\u64da\u5b58\u5132\u9700\u6c42\u3002<\/li>\n<li><strong>\u9ad8\u6548\u67e5\u8a62\uff1a<\/strong>MongoDB\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u67e5\u8a62\u529f\u80fd\uff0c\u80fd\u5920\u5feb\u901f\u6aa2\u7d22\u5b58\u5132\u7684\u5716\u7247\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%b0%87%e5%9c%96%e7%89%87%e5%ad%98%e5%85%a5mongodb-EyIAxLaheJ\">\u5982\u4f55\u5c07\u5716\u7247\u5b58\u5165MongoDB<\/h2>\n<p>\u5c07\u5716\u7247\u5b58\u5165MongoDB\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li>\u5c07\u5716\u7247\u8f49\u63db\u70ba\u4e8c\u9032\u5236\u683c\u5f0f\u3002<\/li>\n<li>\u5c07\u4e8c\u9032\u5236\u6578\u64da\u5b58\u5132\u5230MongoDB\u4e2d\u3002<\/li>\n<li>\u53ef\u9078\uff1a\u5b58\u5132\u5716\u7247\u7684\u5143\u6578\u64da\uff08\u5982\u540d\u7a31\u3001\u985e\u578b\u7b49\uff09\u3002<\/li>\n<\/ol>\n<h3 id=\"%e6%ad%a5%e9%a9%9f1%ef%bc%9a%e5%b0%87%e5%9c%96%e7%89%87%e8%bd%89%e6%8f%9b%e7%82%ba%e4%ba%8c%e9%80%b2%e5%88%b6%e6%a0%bc%e5%bc%8f-EyIAxLaheJ\">\u6b65\u9a5f1\uff1a\u5c07\u5716\u7247\u8f49\u63db\u70ba\u4e8c\u9032\u5236\u683c\u5f0f<\/h3>\n<p>\u5728\u5c07\u5716\u7247\u5b58\u5165MongoDB\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5c07\u5176\u8f49\u63db\u70ba\u4e8c\u9032\u5236\u683c\u5f0f\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Node.js\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>const fs = require('fs');\n\nconst imagePath = 'path\/to\/your\/image.jpg';\nconst imageData = fs.readFileSync(imagePath);\n<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f2%ef%bc%9a%e5%b0%87%e4%ba%8c%e9%80%b2%e5%88%b6%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e5%88%b0mongodb%e4%b8%ad-EyIAxLaheJ\">\u6b65\u9a5f2\uff1a\u5c07\u4e8c\u9032\u5236\u6578\u64da\u5b58\u5132\u5230MongoDB\u4e2d<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u4f7f\u7528MongoDB\u7684\u9a45\u52d5\u7a0b\u5e8f\u5c07\u4e8c\u9032\u5236\u6578\u64da\u5b58\u5132\u5230\u6578\u64da\u5eab\u4e2d\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Mongoose\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>const mongoose = require('mongoose');\n\nmongoose.connect('mongodb:\/\/localhost:27017\/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true });\n\nconst imageSchema = new mongoose.Schema({\n    data: Buffer,\n    contentType: String\n});\n\nconst Image = mongoose.model('Image', imageSchema);\n\nconst newImage = new Image({\n    data: imageData,\n    contentType: 'image\/jpeg'\n});\n\nnewImage.save((err) =&gt; {\n    if (err) {\n        console.error('Error saving image:', err);\n    } else {\n        console.log('Image saved successfully!');\n    }\n});\n<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f3%ef%bc%9a%e5%ad%98%e5%84%b2%e5%9c%96%e7%89%87%e7%9a%84%e5%85%83%e6%95%b8%e6%93%9a%ef%bc%88%e5%8f%af%e9%81%b8%ef%bc%89-EyIAxLaheJ\">\u6b65\u9a5f3\uff1a\u5b58\u5132\u5716\u7247\u7684\u5143\u6578\u64da\uff08\u53ef\u9078\uff09<\/h3>\n<p>\u9664\u4e86\u5b58\u5132\u5716\u7247\u7684\u4e8c\u9032\u5236\u6578\u64da\u5916\uff0c\u9084\u53ef\u4ee5\u9078\u64c7\u5b58\u5132\u4e00\u4e9b\u5143\u6578\u64da\uff0c\u4f8b\u5982\u5716\u7247\u7684\u540d\u7a31\u3001\u5927\u5c0f\u548c\u4e0a\u50b3\u6642\u9593\u7b49\u3002\u9019\u53ef\u4ee5\u5e6b\u52a9\u66f4\u597d\u5730\u7ba1\u7406\u548c\u6aa2\u7d22\u5716\u7247\u3002<\/p>\n<pre><code>const newImageWithMetadata = new Image({\n    data: imageData,\n    contentType: 'image\/jpeg',\n    name: 'myImage.jpg',\n    size: imageData.length,\n    uploadedAt: new Date()\n});\n<\/code><\/pre>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%be%9emongodb%e4%b8%ad%e6%aa%a2%e7%b4%a2%e5%9c%96%e7%89%87-EyIAxLaheJ\">\u5982\u4f55\u5f9eMongoDB\u4e2d\u6aa2\u7d22\u5716\u7247<\/h2>\n<p>\u6aa2\u7d22\u5b58\u5132\u5728MongoDB\u4e2d\u7684\u5716\u7247\u540c\u6a23\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u5716\u7247\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>Image.findById(imageId, (err, image) =&gt; {\n    if (err) {\n        console.error('Error retrieving image:', err);\n    } else {\n        \/\/ \u5c07\u5716\u7247\u6578\u64da\u5beb\u5165\u6587\u4ef6\n        fs.writeFileSync('output.jpg', image.data);\n        console.log('Image retrieved and saved as output.jpg');\n    }\n});\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-EyIAxLaheJ\">\u7e3d\u7d50<\/h2>\n<p>\u5c07\u5716\u7247\u5b58\u5165MongoDB\u6578\u64da\u5eab\u662f\u4e00\u500b\u7c21\u55ae\u800c\u6709\u6548\u7684\u904e\u7a0b\uff0c\u80fd\u5920\u5145\u5206\u5229\u7528MongoDB\u7684\u9748\u6d3b\u6027\u548c\u53ef\u64f4\u5c55\u6027\u3002\u901a\u904e\u4e0a\u8ff0\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u5716\u7247\u53ca\u5176\u5143\u6578\u64da\u5b58\u5132\u5230MongoDB\u4e2d\uff0c\u4e26\u5728\u9700\u8981\u6642\u6aa2\u7d22\u5b83\u5011\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u5716\u7247\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684MongoDB\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5c07\u5716\u7247\u5b58\u5165MongoDB\u6578\u64da\u5eab\uff0c\u638c\u63e1MongoDB\u7684\u529f\u80fd\u8207\u6280\u5de7\uff0c\u8f15\u9b06\u7ba1\u7406\u548c\u5b58\u5132\u5716\u7247\u6578\u64da\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-63932","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63932","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=63932"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63932\/revisions"}],"predecessor-version":[{"id":63933,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63932\/revisions\/63933"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=63932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=63932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=63932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}