{"id":247333,"date":"2024-01-02T20:35:27","date_gmt":"2024-01-02T12:35:27","guid":{"rendered":"https:\/\/www.idc.net\/help\/247333\/"},"modified":"2024-01-02T20:35:27","modified_gmt":"2024-01-02T12:35:27","slug":"mongodb-%e6%9c%af%e8%af%ad-%e8%bf%87%e6%bb%a4%e5%99%a8","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/247333\/","title":{"rendered":"MongoDB \u672f\u8bed &#8211; \u8fc7\u6ee4\u5668"},"content":{"rendered":"<p><title id=\"mongodb-%e6%9c%af%e8%af%ad-%e8%bf%87%e6%bb%a4%e5%99%a8-keYQlowRdb\">MongoDB \u672f\u8bed - \u8fc7\u6ee4\u5668<\/title><\/p>\n<h1 id=\"mongodb-%e6%9c%af%e8%af%ad-%e8%bf%87%e6%bb%a4%e5%99%a8-keYQlowRdb\">MongoDB \u672f\u8bed - \u8fc7\u6ee4\u5668<\/h1>\n<p>MongoDB \u662f\u4e00\u79cd\u6d41\u884c\u7684\u5f00\u6e90\u6587\u6863\u6570\u636e\u5e93\uff0c\u88ab\u5e7f\u6cdb\u7528\u4e8e\u6784\u5efa\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u3002\u5728 MongoDB \u4e2d\uff0c\u8fc7\u6ee4\u5668\u662f\u4e00\u79cd\u7528\u4e8e\u67e5\u8be2\u548c\u7b5b\u9009\u6587\u6863\u7684\u5de5\u5177\u3002\u901a\u8fc7\u4f7f\u7528\u8fc7\u6ee4\u5668\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u6307\u5b9a\u7684\u6761\u4ef6\u4ece\u96c6\u5408\u4e2d\u68c0\u7d22\u6587\u6863\u3002<\/p>\n<h2 id=\"%e8%bf%87%e6%bb%a4%e5%99%a8%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%af%ad%e6%b3%95-keYQlowRdb\">\u8fc7\u6ee4\u5668\u7684\u57fa\u672c\u8bed\u6cd5<\/h2>\n<p>\u5728 MongoDB \u4e2d\uff0c\u8fc7\u6ee4\u5668\u4f7f\u7528 JSON \u683c\u5f0f\u8868\u793a\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u5404\u79cd\u64cd\u4f5c\u7b26\u548c\u8868\u8fbe\u5f0f\u6765\u6784\u5efa\u8fc7\u6ee4\u5668\u6761\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u57fa\u672c\u7684\u8fc7\u6ee4\u5668\u8bed\u6cd5\u793a\u4f8b\uff1a<\/p>\n<pre>\n{\n  field: value\n}\n<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cfield \u662f\u8981\u5339\u914d\u7684\u5b57\u6bb5\u540d\u79f0\uff0cvalue \u662f\u8981\u5339\u914d\u7684\u503c\u3002\u60a8\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6dfb\u52a0\u66f4\u591a\u7684\u5b57\u6bb5\u548c\u6761\u4ef6\u6765\u6784\u5efa\u66f4\u590d\u6742\u7684\u8fc7\u6ee4\u5668\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e7%94%a8%e7%9a%84%e8%bf%87%e6%bb%a4%e5%99%a8%e6%93%8d%e4%bd%9c%e7%ac%a6-keYQlowRdb\">\u5e38\u7528\u7684\u8fc7\u6ee4\u5668\u64cd\u4f5c\u7b26<\/h2>\n<p>MongoDB \u63d0\u4f9b\u4e86\u8bb8\u591a\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u6784\u5efa\u66f4\u590d\u6742\u7684\u8fc7\u6ee4\u5668\u6761\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u8fc7\u6ee4\u5668\u64cd\u4f5c\u7b26\uff1a<\/p>\n<ul>\n<li><code>$eq<\/code>\uff1a\u5339\u914d\u5b57\u6bb5\u7b49\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><code>$ne<\/code>\uff1a\u5339\u914d\u5b57\u6bb5\u4e0d\u7b49\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><code>$gt<\/code>\uff1a\u5339\u914d\u5b57\u6bb5\u5927\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><code>$lt<\/code>\uff1a\u5339\u914d\u5b57\u6bb5\u5c0f\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><code>$gte<\/code>\uff1a\u5339\u914d\u5b57\u6bb5\u5927\u4e8e\u7b49\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><code>$lte<\/code>\uff1a\u5339\u914d\u5b57\u6bb5\u5c0f\u4e8e\u7b49\u4e8e\u6307\u5b9a\u503c\u7684\u6587\u6863\u3002<\/li>\n<li><code>$in<\/code>\uff1a\u5339\u914d\u5b57\u6bb5\u503c\u5728\u6307\u5b9a\u6570\u7ec4\u4e2d\u7684\u6587\u6863\u3002<\/li>\n<li><code>$nin<\/code>\uff1a\u5339\u914d\u5b57\u6bb5\u503c\u4e0d\u5728\u6307\u5b9a\u6570\u7ec4\u4e2d\u7684\u6587\u6863\u3002<\/li>\n<li><code>$exists<\/code>\uff1a\u5339\u914d\u5305\u542b\u6307\u5b9a\u5b57\u6bb5\u7684\u6587\u6863\u3002<\/li>\n<li><code>$regex<\/code>\uff1a\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u5b57\u6bb5\u503c\u7684\u6587\u6863\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%bf%87%e6%bb%a4%e5%99%a8%e7%a4%ba%e4%be%8b-keYQlowRdb\">\u8fc7\u6ee4\u5668\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528\u8fc7\u6ee4\u5668\u7684\u793a\u4f8b\uff1a<\/p>\n<pre>\n\/\/ \u67e5\u627e age \u5b57\u6bb5\u7b49\u4e8e 25 \u7684\u6587\u6863\n{ age: { $eq: 25 } }\n\n\/\/ \u67e5\u627e name \u5b57\u6bb5\u4e0d\u7b49\u4e8e \"John\" \u7684\u6587\u6863\n{ name: { $ne: \"John\" } }\n\n\/\/ \u67e5\u627e score \u5b57\u6bb5\u5927\u4e8e 80 \u7684\u6587\u6863\n{ score: { $gt: 80 } }\n\n\/\/ \u67e5\u627e price \u5b57\u6bb5\u5c0f\u4e8e\u7b49\u4e8e 100 \u7684\u6587\u6863\n{ price: { $lte: 100 } }\n\n\/\/ \u67e5\u627e category \u5b57\u6bb5\u503c\u5728 [\"Electronics\", \"Books\"] \u4e2d\u7684\u6587\u6863\n{ category: { $in: [\"Electronics\", \"Books\"] } }\n\n\/\/ \u67e5\u627e\u5b57\u6bb5\u503c\u5b58\u5728\u7684\u6587\u6863\n{ field: { $exists: true } }\n\n\/\/ \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u67e5\u627e name \u5b57\u6bb5\u4ee5 \"J\" \u5f00\u5934\u7684\u6587\u6863\n{ name: { $regex: \/^J\/ } }\n<\/pre>\n<p>\u901a\u8fc7\u4f7f\u7528\u8fd9\u4e9b\u8fc7\u6ee4\u5668\u64cd\u4f5c\u7b26\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u6784\u5efa\u590d\u6742\u7684\u67e5\u8be2\u6761\u4ef6\uff0c\u4ece MongoDB \u96c6\u5408\u4e2d\u68c0\u7d22\u6240\u9700\u7684\u6587\u6863\u3002<\/p>\n<h2 id=\"%e7%bb%93%e8%ae%ba-keYQlowRdb\">\u7ed3\u8bba<\/h2>\n<p>\u8fc7\u6ee4\u5668\u662f MongoDB \u4e2d\u5f3a\u5927\u7684\u67e5\u8be2\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u60a8\u6839\u636e\u6307\u5b9a\u7684\u6761\u4ef6\u4ece\u96c6\u5408\u4e2d\u68c0\u7d22\u6587\u6863\u3002\u901a\u8fc7\u4f7f\u7528\u8fc7\u6ee4\u5668\u64cd\u4f5c\u7b26\uff0c\u60a8\u53ef\u4ee5\u6784\u5efa\u590d\u6742\u7684\u67e5\u8be2\u6761\u4ef6\uff0c\u4ee5\u6ee1\u8db3\u5404\u79cd\u9700\u6c42\u3002\u65e0\u8bba\u60a8\u662f\u521d\u5b66\u8005\u8fd8\u662f\u6709\u7ecf\u9a8c\u7684 MongoDB \u7528\u6237\uff0c\u4e86\u89e3\u548c\u638c\u63e1\u8fc7\u6ee4\u5668\u7684\u4f7f\u7528\u90fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h3 id=\"%e9%a6%99%e6%b8%af%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%a6%96%e9%80%89%e5%90%8e%e6%b5%aa%e4%ba%91-keYQlowRdb\">\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91<\/h3>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u53ef\u9760\u7684\u9999\u6e2f\u670d\u52a1\u5668\u63d0\u4f9b\u5546\uff0c\u540e\u6d6a\u4e91\u662f\u60a8\u7684\u9996\u9009\u3002\u540e\u6d6a\u4e91\u63d0\u4f9b\u9ad8\u6027\u80fd\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u53ef\u6ee1\u8db3\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\u3002\u8bf7\u8bbf\u95ee\u6211\u4eec\u7684\u5b98\u7f51\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff1a<a href=\"https:\/\/idc.net\">https:\/\/idc.net<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>MongoDB \u672f\u8bed - \u8fc7\u6ee4\u5668 MongoDB \u672f\u8bed - \u8fc7\u6ee4\u5668 MongoDB \u662f\u4e00\u79cd\u6d41\u884c\u7684\u5f00\u6e90\u6587\u6863\u6570\u636e\u5e93 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7038],"tags":[],"class_list":["post-247333","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=247333"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/247333\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=247333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=247333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=247333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}