{"id":63826,"date":"2024-10-14T02:48:12","date_gmt":"2024-10-13T18:48:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/63826\/"},"modified":"2024-10-14T02:48:13","modified_gmt":"2024-10-13T18:48:13","slug":"mongodb%e8%a1%93%e8%aa%9e-%e5%af%ab%e5%85%a5%e9%97%9c%e6%b3%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/63826\/","title":{"rendered":"MongoDB\u8853\u8a9e &#8211; \u5beb\u5165\u95dc\u6ce8"},"content":{"rendered":"<h1 id=\"mongodb%e8%a1%93%e8%aa%9e-%e5%af%ab%e5%85%a5%e9%97%9c%e6%b3%a8-dIktgkrOuU\">MongoDB\u8853\u8a9e &#8211; \u5beb\u5165\u95dc\u6ce8<\/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\u8d8a\u4f86\u8d8a\u53d7\u5230\u958b\u767c\u8005\u7684\u9752\u775e\u3002\u5176\u9748\u6d3b\u7684\u6578\u64da\u6a21\u578b\u548c\u9ad8\u6548\u7684\u67e5\u8a62\u80fd\u529b\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u7684\u9996\u9078\u3002\u7136\u800c\uff0c\u5728\u4f7f\u7528MongoDB\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u7279\u5225\u6ce8\u610f\u201c\u5beb\u5165\u95dc\u6ce8\u201d\uff08Write Concern\uff09\u9019\u4e00\u6982\u5ff5\uff0c\u56e0\u70ba\u5b83\u76f4\u63a5\u5f71\u97ff\u6578\u64da\u7684\u53ef\u9760\u6027\u548c\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%af%ab%e5%85%a5%e9%97%9c%e6%b3%a8%ef%bc%9f-dIktgkrOuU\">\u4ec0\u9ebc\u662f\u5beb\u5165\u95dc\u6ce8\uff1f<\/h2>\n<p>\u5beb\u5165\u95dc\u6ce8\u662fMongoDB\u4e2d\u7528\u4f86\u5b9a\u7fa9\u5beb\u5165\u64cd\u4f5c\u7684\u78ba\u8a8d\u7d1a\u5225\u7684\u8a2d\u7f6e\u3002\u5b83\u544a\u8a34\u6578\u64da\u5eab\u5728\u78ba\u8a8d\u5beb\u5165\u64cd\u4f5c\u6210\u529f\u4e4b\u524d\uff0c\u5fc5\u9808\u6eff\u8db3\u54ea\u4e9b\u689d\u4ef6\u3002\u9019\u4e9b\u689d\u4ef6\u53ef\u4ee5\u5f71\u97ff\u6578\u64da\u7684\u6301\u4e45\u6027\u548c\u7cfb\u7d71\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e5%af%ab%e5%85%a5%e9%97%9c%e6%b3%a8%e7%9a%84%e7%b4%9a%e5%88%a5-dIktgkrOuU\">\u5beb\u5165\u95dc\u6ce8\u7684\u7d1a\u5225<\/h2>\n<p>MongoDB\u63d0\u4f9b\u4e86\u5e7e\u7a2e\u4e0d\u540c\u7684\u5beb\u5165\u95dc\u6ce8\u7d1a\u5225\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u61c9\u7528\u7684\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u7d1a\u5225\uff1a<\/p>\n<ul>\n<li><strong>w: 0<\/strong> &#8211; \u4e0d\u78ba\u8a8d\uff1a\u5beb\u5165\u64cd\u4f5c\u4e0d\u6703\u7b49\u5f85\u4efb\u4f55\u78ba\u8a8d\uff0c\u9019\u610f\u5473\u8457\u6578\u64da\u53ef\u80fd\u6703\u4e1f\u5931\u3002<\/li>\n<li><strong>w: 1<\/strong> &#8211; \u4e3b\u7bc0\u9ede\u78ba\u8a8d\uff1a\u5beb\u5165\u64cd\u4f5c\u5728\u4e3b\u7bc0\u9ede\u4e0a\u6210\u529f\u5f8c\u5373\u88ab\u78ba\u8a8d\uff0c\u9019\u662f\u6700\u5e38\u7528\u7684\u8a2d\u7f6e\u3002<\/li>\n<li><strong>w: majority<\/strong> &#8211; \u591a\u6578\u78ba\u8a8d\uff1a\u5beb\u5165\u64cd\u4f5c\u5fc5\u9808\u5728\u591a\u6578\u526f\u672c\u96c6\u6210\u54e1\u4e0a\u6210\u529f\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u9760\u6027\u3002<\/li>\n<li><strong>w: n<\/strong> &#8211; \u6307\u5b9a\u78ba\u8a8d\uff1a\u958b\u767c\u8005\u53ef\u4ee5\u6307\u5b9a\u9700\u8981\u78ba\u8a8d\u7684\u526f\u672c\u96c6\u6210\u54e1\u6578\u91cf\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%ab%e5%85%a5%e9%97%9c%e6%b3%a8%e7%9a%84%e5%bd%b1%e9%9f%bf-dIktgkrOuU\">\u5beb\u5165\u95dc\u6ce8\u7684\u5f71\u97ff<\/h2>\n<p>\u9078\u64c7\u4e0d\u540c\u7684\u5beb\u5165\u95dc\u6ce8\u7d1a\u5225\u6703\u5c0d\u61c9\u7528\u7684\u6027\u80fd\u548c\u6578\u64da\u7684\u53ef\u9760\u6027\u7522\u751f\u5f71\u97ff\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\uff1a<\/strong>\u8f03\u4f4e\u7684\u5beb\u5165\u95dc\u6ce8\uff08\u5982w: 0\uff09\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\uff0c\u56e0\u70ba\u7cfb\u7d71\u4e0d\u9700\u8981\u7b49\u5f85\u78ba\u8a8d\u3002\u7136\u800c\uff0c\u9019\u6a23\u7684\u8a2d\u7f6e\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u53ef\u9760\u6027\uff1a<\/strong>\u8f03\u9ad8\u7684\u5beb\u5165\u95dc\u6ce8\uff08\u5982w: majority\uff09\u5247\u80fd\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u9760\u6027\uff0c\u56e0\u70ba\u5b83\u78ba\u4fdd\u4e86\u6578\u64da\u5728\u591a\u500b\u526f\u672c\u4e0a\u90fd\u88ab\u5beb\u5165\u6210\u529f\uff0c\u4f46\u9019\u6703\u589e\u52a0\u5beb\u5165\u5ef6\u9072\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae%e5%af%ab%e5%85%a5%e9%97%9c%e6%b3%a8-dIktgkrOuU\">\u5982\u4f55\u8a2d\u7f6e\u5beb\u5165\u95dc\u6ce8<\/h2>\n<p>\u5728MongoDB\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5728\u57f7\u884c\u5beb\u5165\u64cd\u4f5c\u6642\u8a2d\u7f6e\u5beb\u5165\u95dc\u6ce8\u3002\u4f8b\u5982\uff0c\u4f7f\u7528MongoDB\u7684JavaScript\u9a45\u52d5\u6642\uff0c\u53ef\u4ee5\u9019\u6a23\u8a2d\u7f6e\uff1a<\/p>\n<pre><code>\ndb.collection.insertOne(\n    { name: \"Alice\", age: 30 },\n    { writeConcern: { w: \"majority\" } }\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u63d2\u5165\u64cd\u4f5c\u5c07\u7b49\u5f85\u591a\u6578\u526f\u672c\u96c6\u7684\u78ba\u8a8d\uff0c\u5f9e\u800c\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u9760\u6027\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-dIktgkrOuU\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u4f7f\u7528MongoDB\u6642\uff0c\u7406\u89e3\u548c\u6b63\u78ba\u8a2d\u7f6e\u5beb\u5165\u95dc\u6ce8\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u5b83\u4e0d\u50c5\u5f71\u97ff\u6578\u64da\u7684\u53ef\u9760\u6027\uff0c\u9084\u6703\u5f71\u97ff\u61c9\u7528\u7684\u6027\u80fd\u3002\u958b\u767c\u8005\u61c9\u6839\u64da\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\uff0c\u9078\u64c7\u5408\u9069\u7684\u5beb\u5165\u95dc\u6ce8\u7d1a\u5225\uff0c\u4ee5\u9054\u5230\u6700\u4f73\u7684\u5e73\u8861\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684MongoDB\u5be6\u4f8b\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u548c\u9ad8\u6548\u5b58\u53d6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MongoDB\u4e2d\u7684\u5beb\u5165\u95dc\u6ce8\u8853\u8a9e\uff0c\u638c\u63e1\u6578\u64da\u5beb\u5165\u7684\u53ef\u9760\u6027\u548c\u6027\u80fd\u9078\u9805\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u6548\u7387\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-63826","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63826","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=63826"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63826\/revisions"}],"predecessor-version":[{"id":63827,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/63826\/revisions\/63827"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=63826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=63826"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=63826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}