{"id":176093,"date":"2024-11-08T10:01:29","date_gmt":"2024-11-08T02:01:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/176093\/"},"modified":"2024-11-08T10:01:30","modified_gmt":"2024-11-08T02:01:30","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mongodb%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-55-dbref%e7%84%a1%e6%95%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/176093\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 55 &#8211; DBRef\u7121\u6548"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mongodb%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-55-dbref%e7%84%a1%e6%95%88-gAAIkcKyQD\">\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 55 &#8211; DBRef\u7121\u6548<\/h1>\n<p>\u5728\u4f7f\u7528MongoDB\u7684\u904e\u7a0b\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc &#8211; 55\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u8868\u793aDBRef\u7121\u6548\u3002DBRef\u662f\u4e00\u7a2e\u7528\u65bc\u5728MongoDB\u4e2d\u5f15\u7528\u5176\u4ed6\u6587\u6a94\u7684\u65b9\u5f0f\uff0c\u7576DBRef\u7121\u6548\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u67e5\u8a62\u5931\u6557\u6216\u61c9\u7528\u7a0b\u5e8f\u5d29\u6f70\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afdbref%ef%bc%9f-gAAIkcKyQD\">\u4ec0\u9ebc\u662fDBRef\uff1f<\/h2>\n<p>DBRef\u662fMongoDB\u4e2d\u4e00\u7a2e\u7279\u6b8a\u7684\u6578\u64da\u7d50\u69cb\uff0c\u7528\u65bc\u5728\u4e0d\u540c\u6587\u6a94\u4e4b\u9593\u5efa\u7acb\u5f15\u7528\u3002\u5b83\u901a\u5e38\u5305\u542b\u4e09\u500b\u90e8\u5206\uff1a<\/p>\n<ul>\n<li><strong>\u96c6\u5408\u540d\u7a31<\/strong>\uff1a\u5f15\u7528\u7684\u6587\u6a94\u6240\u5728\u7684\u96c6\u5408\u3002<\/li>\n<li><strong>\u6587\u6a94ID<\/strong>\uff1a\u88ab\u5f15\u7528\u6587\u6a94\u7684\u552f\u4e00\u6a19\u8b58\u7b26\u3002<\/li>\n<li><strong>\u53ef\u9078\u7684\u8cc7\u6599\u5eab\u540d\u7a31<\/strong>\uff1a\u5982\u679c\u5f15\u7528\u7684\u6587\u6a94\u5728\u4e0d\u540c\u7684\u8cc7\u6599\u5eab\u4e2d\uff0c\u5247\u9700\u8981\u6307\u5b9a\u8cc7\u6599\u5eab\u540d\u7a31\u3002<\/li>\n<\/ul>\n<p>DBRef\u7684\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code>{\n    \"$ref\": \"collection_name\",\n    \"$id\": ObjectId(\"document_id\"),\n    \"$db\": \"database_name\"\n}\n<\/code><\/pre>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-55-%e7%9a%84%e5%8e%9f%e5%9b%a0-gAAIkcKyQD\">\u932f\u8aa4\u4ee3\u78bc &#8211; 55 \u7684\u539f\u56e0<\/h2>\n<p>\u7576MongoDB\u5831\u544a\u932f\u8aa4\u4ee3\u78bc &#8211; 55 \u6642\uff0c\u901a\u5e38\u662f\u56e0\u70ba\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u7121\u6548\u7684\u96c6\u5408\u540d\u7a31<\/strong>\uff1aDBRef\u4e2d\u6307\u5b9a\u7684\u96c6\u5408\u540d\u7a31\u53ef\u80fd\u4e0d\u5b58\u5728\u6216\u62fc\u5beb\u932f\u8aa4\u3002<\/li>\n<li><strong>\u7121\u6548\u7684\u6587\u6a94ID<\/strong>\uff1a\u5f15\u7528\u7684\u6587\u6a94ID\u53ef\u80fd\u4e0d\u6b63\u78ba\uff0c\u6216\u8005\u8a72\u6587\u6a94\u5df2\u88ab\u522a\u9664\u3002<\/li>\n<li><strong>\u8cc7\u6599\u5eab\u4e0d\u5339\u914d<\/strong>\uff1a\u5982\u679cDBRef\u4e2d\u6307\u5b9a\u7684\u8cc7\u6599\u5eab\u540d\u7a31\u8207\u5be6\u969b\u8cc7\u6599\u5eab\u4e0d\u7b26\uff0c\u5247\u6703\u5c0e\u81f4\u7121\u6cd5\u627e\u5230\u76f8\u61c9\u7684\u6587\u6a94\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-55-gAAIkcKyQD\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4\u4ee3\u78bc &#8211; 55<\/h2>\n<p>\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 55\u7684\u904e\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e9%9b%86%e5%90%88%e5%90%8d%e7%a8%b1-gAAIkcKyQD\">1. \u6aa2\u67e5\u96c6\u5408\u540d\u7a31<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u8a8dDBRef\u4e2d\u6307\u5b9a\u7684\u96c6\u5408\u540d\u7a31\u662f\u5426\u6b63\u78ba\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5217\u51fa\u7576\u524d\u8cc7\u6599\u5eab\u4e2d\u7684\u6240\u6709\u96c6\u5408\uff1a<\/p>\n<pre><code>show collections<\/code><\/pre>\n<p>\u5982\u679c\u96c6\u5408\u540d\u7a31\u62fc\u5beb\u932f\u8aa4\uff0c\u8acb\u4fee\u6b63\u70ba\u6b63\u78ba\u7684\u540d\u7a31\u3002<\/p>\n<h3 id=\"2-%e9%a9%97%e8%ad%89%e6%96%87%e6%aa%94id-gAAIkcKyQD\">2. \u9a57\u8b49\u6587\u6a94ID<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6aa2\u67e5DBRef\u4e2d\u6307\u5b9a\u7684\u6587\u6a94ID\u662f\u5426\u5b58\u5728\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u8a62\u8a72\u6587\u6a94\uff1a<\/p>\n<pre><code>db.collection_name.find({_id: ObjectId(\"document_id\")})<\/code><\/pre>\n<p>\u5982\u679c\u67e5\u8a62\u7d50\u679c\u70ba\u7a7a\uff0c\u5247\u8868\u793a\u8a72\u6587\u6a94\u4e0d\u5b58\u5728\uff0c\u60a8\u9700\u8981\u66f4\u65b0DBRef\u4ee5\u5f15\u7528\u6b63\u78ba\u7684\u6587\u6a94ID\u3002<\/p>\n<h3 id=\"3-%e7%a2%ba%e8%aa%8d%e8%b3%87%e6%96%99%e5%ba%ab%e5%90%8d%e7%a8%b1-gAAIkcKyQD\">3. \u78ba\u8a8d\u8cc7\u6599\u5eab\u540d\u7a31<\/h3>\n<p>\u6700\u5f8c\uff0c\u6aa2\u67e5DBRef\u4e2d\u6307\u5b9a\u7684\u8cc7\u6599\u5eab\u540d\u7a31\u662f\u5426\u6b63\u78ba\u3002\u5982\u679c\u60a8\u5728\u4e0d\u540c\u7684\u8cc7\u6599\u5eab\u4e2d\u5b58\u5132\u4e86\u6587\u6a94\uff0c\u8acb\u78ba\u4fddDBRef\u4e2d\u7684\u8cc7\u6599\u5eab\u540d\u7a31\u8207\u5be6\u969b\u8cc7\u6599\u5eab\u540d\u7a31\u4e00\u81f4\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-gAAIkcKyQD\">\u793a\u4f8b<\/h2>\n<p>\u5047\u8a2d\u60a8\u6709\u4e00\u500bDBRef\u5982\u4e0b\uff1a<\/p>\n<pre><code>{\n    \"$ref\": \"users\",\n    \"$id\": ObjectId(\"60c72b2f9b1e8a001c8e4e1a\"),\n    \"$db\": \"myDatabase\"\n}\n<\/code><\/pre>\n<p>\u5982\u679c\u60a8\u9047\u5230\u932f\u8aa4\u4ee3\u78bc &#8211; 55\uff0c\u60a8\u53ef\u4ee5\u6309\u7167\u4e0a\u8ff0\u6b65\u9a5f\u6aa2\u67e5\uff1a<\/p>\n<ul>\n<li>\u78ba\u8a8d\u96c6\u5408\u540d\u7a31\u201cusers\u201d\u662f\u5426\u5b58\u5728\u3002<\/li>\n<li>\u4f7f\u7528\u67e5\u8a62\u78ba\u8a8dID\u201c60c72b2f9b1e8a001c8e4e1a\u201d\u662f\u5426\u5b58\u5728\u65bc\u201cusers\u201d\u96c6\u5408\u4e2d\u3002<\/li>\n<li>\u78ba\u4fdd\u8cc7\u6599\u5eab\u540d\u7a31\u201cmyDatabase\u201d\u662f\u6b63\u78ba\u7684\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-gAAIkcKyQD\">\u7e3d\u7d50<\/h2>\n<p>MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 55 &#8211; DBRef\u7121\u6548\u901a\u5e38\u662f\u7531\u65bc\u96c6\u5408\u540d\u7a31\u3001\u6587\u6a94ID\u6216\u8cc7\u6599\u5eab\u540d\u7a31\u4e0d\u6b63\u78ba\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5\u9019\u4e9b\u5143\u7d20\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u78ba\u4fdd\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u6b63\u5e38\u904b\u884c\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc55\uff0c\u89e3\u6c7aDBRef\u7121\u6548\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u64cd\u4f5c\u9806\u5229\u9032\u884c\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-176093","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176093","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=176093"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176093\/revisions"}],"predecessor-version":[{"id":176094,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176093\/revisions\/176094"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=176093"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=176093"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=176093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}