{"id":21794,"date":"2024-01-02T15:25:25","date_gmt":"2024-01-02T15:25:25","guid":{"rendered":"https:\/\/server.hk\/blog\/21794\/"},"modified":"2024-11-14T10:26:55","modified_gmt":"2024-11-14T02:26:55","slug":"how-to-fix-mongodb-error-code-211-keynotfound","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21794\/","title":{"rendered":"\u5982\u4f55\u89e3\u6c7a MongoDB \u932f\u8aa4\u4ee3\u78bc – 211 – \u627e\u4e0d\u5230\u9375"},"content":{"rendered":"

\u5982\u4f55\u89e3\u6c7a MongoDB \u932f\u8aa4\u4ee3\u78bc – 211 – \u627e\u4e0d\u5230\u9375<\/h1>\n

MongoDB \u662f\u4e00\u500b\u53d7\u6b61\u8fce\u7684 NoSQL \u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u9ad8\u6027\u80fd\u3001\u53ef\u64f4\u5c55\u6027\u548c\u9748\u6d3b\u6027\u3002\u7136\u800c\uff0c\u50cf\u5176\u4ed6\u8edf\u4ef6\u4e00\u6a23\uff0c\u5b83\u4e5f\u53ef\u80fd\u6703\u9047\u5230\u9700\u8981\u89e3\u6c7a\u7684\u932f\u8aa4\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u662f MongoDB \u932f\u8aa4\u4ee3\u78bc – 211 – \u627e\u4e0d\u5230\u9375\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u542b\u7fa9\u53ca\u5176\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n

\u7406\u89e3 MongoDB \u932f\u8aa4\u4ee3\u78bc – 211 – \u627e\u4e0d\u5230\u9375<\/h2>\n

\u5728\u4f7f\u7528 MongoDB \u6642\uff0c\u60a8\u53ef\u80fd\u6703\u9047\u5230\u932f\u8aa4\u6d88\u606f\u300c\u932f\u8aa4\u4ee3\u78bc\uff1a211\uff0c\u932f\u8aa4\u6d88\u606f\uff1a\u627e\u4e0d\u5230\u9375\u3002\u300d\u7576\u60a8\u5617\u8a66\u4f7f\u7528\u5728\u96c6\u5408\u4e2d\u4e0d\u5b58\u5728\u7684\u9375\u4f86\u8a2a\u554f\u6587\u6a94\u6642\uff0c\u5c31\u6703\u767c\u751f\u6b64\u932f\u8aa4\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5047\u8a2d\u60a8\u6709\u4e00\u500b\u540d\u70ba\u300cusers\u300d\u7684\u96c6\u5408\uff0c\u5176\u4e2d\u6587\u6a94\u5305\u542b\u300cname\u300d\u3001\u300cemail\u300d\u548c\u300cage\u300d\u7b49\u5b57\u6bb5\u3002\u5982\u679c\u60a8\u8a66\u5716\u7528\u4e00\u500b\u5982\u300caddress\u300d\u7684\u9375\u4f86\u67e5\u8a62\u6587\u6a94\uff0c\u800c\u8a72\u9375\u4e0d\u5b58\u5728\u65bc\u4efb\u4f55\u6587\u6a94\u4e2d\uff0c\u5247 MongoDB \u5c07\u6703\u62cb\u51fa\u627e\u4e0d\u5230\u9375\u7684\u932f\u8aa4\u3002<\/p>\n

\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc – 211 – \u627e\u4e0d\u5230\u9375<\/h2>\n

\u8981\u4fee\u5fa9 MongoDB \u4e2d\u7684\u627e\u4e0d\u5230\u9375\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u60a8\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u9375\u5b58\u5728\u65bc\u8a72\u96c6\u5408\u4e2d\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n

1. \u6aa2\u67e5\u96c6\u5408\u7d50\u69cb<\/h3>\n

\u9996\u5148\u6aa2\u67e5\u96c6\u5408\u7684\u7d50\u69cb\u3002\u78ba\u4fdd\u60a8\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u9375\u8207\u6587\u6a94\u4e2d\u7684\u5b57\u6bb5\u540d\u7a31\u76f8\u5339\u914d\u3002MongoDB \u662f\u5340\u5206\u5927\u5c0f\u5beb\u7684\uff0c\u56e0\u6b64\u9375\u7684\u5927\u5c0f\u5beb\u5fc5\u9808\u5b8c\u5168\u5339\u914d\u3002<\/p>\n

2. \u9a57\u8b49\u6587\u6a94\u7d50\u69cb<\/h3>\n

\u63a5\u4e0b\u4f86\uff0c\u9a57\u8b49\u96c6\u5408\u4e2d\u6587\u6a94\u7684\u7d50\u69cb\u3002\u6aa2\u67e5\u60a8\u4f7f\u7528\u7684\u9375\u662f\u5426\u5b58\u5728\u65bc\u4efb\u4f55\u6587\u6a94\u4e2d\u3002\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u66f4\u65b0\u6587\u6a94\u4ee5\u5305\u542b\u7f3a\u5931\u7684\u9375\uff0c\u6216\u4fee\u6539\u60a8\u7684\u67e5\u8a62\u4ee5\u4f7f\u7528\u73fe\u6709\u7684\u9375\u3002<\/p>\n

3. \u4f7f\u7528 $exists \u64cd\u4f5c\u7b26<\/h3>\n

\u5982\u679c\u60a8\u4e0d\u78ba\u5b9a\u67d0\u500b\u9375\u662f\u5426\u5728\u6587\u6a94\u4e2d\u5b58\u5728\uff0c\u53ef\u4ee5\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528 $exists \u64cd\u4f5c\u7b26\u3002\u8a72\u64cd\u4f5c\u7b26\u5141\u8a31\u60a8\u5728\u57f7\u884c\u4efb\u4f55\u64cd\u4f5c\u4e4b\u524d\u6aa2\u67e5\u5b57\u6bb5\u662f\u5426\u5b58\u5728\u65bc\u6587\u6a94\u4e2d\u3002<\/p>\n

db.users.find({ \"address\": { $exists: true } })<\/code><\/pre>\n
\u6b64\u67e5\u8a62\u5c07\u53ea\u8fd4\u56de\u5177\u6709\u300caddress\u300d\u5b57\u6bb5\u7684\u6587\u6a94\u3002\u5982\u679c\u8a72\u5b57\u6bb5\u4e0d\u5b58\u5728\uff0c\u67e5\u8a62\u5c07\u4e0d\u6703\u62cb\u51fa\u627e\u4e0d\u5230\u9375\u7684\u932f\u8aa4\u3002<\/p>\n
4. \u512a\u96c5\u5730\u8655\u7406\u932f\u8aa4<\/h3>\n
\u5728\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u4e2d\u512a\u96c5\u5730\u8655\u7406\u932f\u8aa4\u662f\u826f\u597d\u7684\u505a\u6cd5\u3002\u8207\u5176\u8b93\u627e\u4e0d\u5230\u9375\u7684\u932f\u8aa4\u4f7f\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u5d29\u6f70\uff0c\u4e0d\u5982\u6355\u7372\u8a72\u932f\u8aa4\u4e26\u986f\u793a\u53cb\u597d\u7684\u932f\u8aa4\u4fe1\u606f\u6216\u57f7\u884c\u5176\u4ed6\u64cd\u4f5c\u3002<\/p>\n
try {\r\n  \/\/ MongoDB \u67e5\u8a62\r\n} catch (error) {\r\n  if (error.code === 211) {\r\n    console.log(\"\u627e\u4e0d\u5230\u9375\uff1a\u8acb\u6c42\u7684\u9375\u4e0d\u5b58\u5728\u3002\");\r\n    \/\/ \u512a\u96c5\u5730\u8655\u7406\u932f\u8aa4\r\n  } else {\r\n    \/\/ \u8655\u7406\u5176\u4ed6\u932f\u8aa4\r\n  }\r\n}<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u7e3d\u4e4b\uff0cMongoDB \u932f\u8aa4\u4ee3\u78bc – 211 – \u627e\u4e0d\u5230\u9375\u767c\u751f\u5728\u60a8\u8a66\u5716\u4f7f\u7528\u5728\u96c6\u5408\u4e2d\u4e0d\u5b58\u5728\u7684\u9375\u4f86\u8a2a\u554f\u6587\u6a94\u6642\u3002\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u78ba\u4fdd\u60a8\u4f7f\u7528\u7684\u9375\u8207\u96c6\u5408\u4e2d\u7684\u5b57\u6bb5\u540d\u7a31\u5339\u914d\uff0c\u9a57\u8b49\u6587\u6a94\u7d50\u69cb\uff0c\u4f7f\u7528 $exists \u64cd\u4f5c\u7b26\u6aa2\u67e5\u5b57\u6bb5\u662f\u5426\u5b58\u5728\uff0c\u4e26\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u512a\u96c5\u5730\u8655\u7406\u932f\u8aa4\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u4e14\u9ad8\u6027\u80fd\u7684 VPS \u6258\u7ba1\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8003\u616e Server.HK<\/a>\u3002Server.HK \u63d0\u4f9b\u591a\u7a2e\u8a08\u5283\u548c\u512a\u79c0\u7684\u5ba2\u6236\u652f\u6301\uff0c\u662f\u696d\u754c\u503c\u5f97\u4fe1\u8cf4\u7684\u63d0\u4f9b\u5546\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u89e3\u6c7a MongoDB \u932f\u8aa4\u4ee3...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-21794","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21794","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=21794"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21794\/revisions"}],"predecessor-version":[{"id":23572,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21794\/revisions\/23572"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21794"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21794"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}