{"id":21748,"date":"2024-01-02T14:39:24","date_gmt":"2024-01-02T14:39:24","guid":{"rendered":"https:\/\/server.hk\/blog\/21748\/"},"modified":"2024-11-14T10:27:39","modified_gmt":"2024-11-14T02:27:39","slug":"how-to-fix-mongodb-error-code-162-collectionisempty","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21748\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 162 &#8211; CollectionIsEmpty"},"content":{"rendered":"<h1 id=\"how-to-fix-mongodb-error-code-162-collectionisempty-esWVhRpQpY\">\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 162 &#8211; CollectionIsEmpty<\/h1>\n<p>MongoDB \u662f\u4e00\u500b\u53d7\u6b61\u8fce\u7684 NoSQL \u8cc7\u6599\u5eab\uff0c\u63d0\u4f9b\u9ad8\u6548\u80fd\u3001\u53ef\u64f4\u5c55\u6027\u548c\u9748\u6d3b\u6027\u3002\u4e0d\u904e\uff0c\u50cf\u5176\u4ed6\u8edf\u4ef6\u4e00\u6a23\uff0c\u5b83\u6709\u6642\u6703\u9047\u5230\u9700\u8981\u89e3\u6c7a\u7684\u932f\u8aa4\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u662f MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 162 &#8211; CollectionIsEmpty\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u4e26\u63d0\u4f9b\u9010\u6b65\u89e3\u6c7a\u65b9\u6848\u4f86\u4fee\u5fa9\u5b83\u3002<\/p>\n<h2 id=\"understanding-mongodb-error-code-162-collectionisempty-esWVhRpQpY\">\u7406\u89e3 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 162 &#8211; CollectionIsEmpty<\/h2>\n<p>\u7576\u4f60\u5617\u8a66\u5728\u4e00\u500b\u7a7a\u96c6\u5408\u4e0a\u57f7\u884c\u64cd\u4f5c\u6642\uff0c\u5c31\u6703\u51fa\u73fe MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 162 &#8211; CollectionIsEmpty\u3002\u6b64\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u4f60\u5617\u8a66\u5f9e\u4e00\u500b\u4e0d\u5b58\u5728\u6216\u6c92\u6709\u6587\u6a94\u7684\u96c6\u5408\u4e2d\u8b80\u53d6\u6216\u5beb\u5165\u8cc7\u6599\u6642\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u6b64\u932f\u8aa4\u53ef\u80fd\u51fa\u73fe\u7684\u4e00\u4e9b\u5e38\u898b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u5617\u8a66\u67e5\u8a62\u5c1a\u672a\u5275\u5efa\u7684\u96c6\u5408<\/li>\n<li>\u5728\u7a7a\u96c6\u5408\u4e0a\u57f7\u884c\u66f4\u65b0\u6216\u522a\u9664\u64cd\u4f5c<\/li>\n<li>\u5728\u4ee3\u78bc\u4e2d\u4f7f\u7528\u932f\u8aa4\u7684\u96c6\u5408\u540d\u7a31<\/li>\n<\/ul>\n<h2 id=\"fixing-mongodb-error-code-162-collectionisempty-esWVhRpQpY\">\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 162 &#8211; CollectionIsEmpty<\/h2>\n<p>\u8981\u89e3\u6c7a MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 162 &#8211; CollectionIsEmpty\uff0c\u8acb\u6309\u4ee5\u4e0b\u6b65\u9a5f\u64cd\u4f5c\uff1a<\/p>\n<h3 id=\"1-check-collection-existence-esWVhRpQpY\">1. \u6aa2\u67e5\u96c6\u5408\u662f\u5426\u5b58\u5728<\/h3>\n<p>\u78ba\u8a8d\u4f60\u5617\u8a66\u8a2a\u554f\u7684\u96c6\u5408\u662f\u5426\u5b58\u5728\u65bc MongoDB \u8cc7\u6599\u5eab\u4e2d\u3002\u4f60\u53ef\u4ee5\u5728 MongoDB Shell \u4e2d\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\u5217\u51fa\u6240\u6709\u96c6\u5408\uff1a<\/p>\n<p><code>show collections<\/code><\/p>\n<p>\u5982\u679c\u96c6\u5408\u672a\u986f\u793a\u5728\u5217\u8868\u4e2d\uff0c\u8868\u793a\u8a72\u96c6\u5408\u4e0d\u5b58\u5728\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>createCollection<\/code> \u6307\u4ee4\u5275\u5efa\u96c6\u5408\uff1a<\/p>\n<p><code>db.createCollection(\"collectionName\")<\/code><\/p>\n<h3 id=\"2-check-collection-documents-esWVhRpQpY\">2. \u6aa2\u67e5\u96c6\u5408\u4e2d\u7684\u6587\u6a94<\/h3>\n<p>\u5982\u679c\u96c6\u5408\u5b58\u5728\u4f46\u70ba\u7a7a\uff0c\u4f60\u9700\u8981\u63d2\u5165\u6587\u6a94\u3002\u4f7f\u7528 <code>insertOne<\/code> \u6216 <code>insertMany<\/code> \u6307\u4ee4\u5c07\u6587\u6a94\u63d2\u5165\u96c6\u5408\u4e2d\uff1a<\/p>\n<p><code>db.collectionName.insertOne({ \"field1\": \"value1\", \"field2\": \"value2\" })<\/code><\/p>\n<p>\u5c07 <code>collectionName<\/code> \u66ff\u63db\u70ba\u4f60\u7684\u96c6\u5408\u540d\u7a31\uff0c\u4e26\u63d0\u4f9b\u9069\u7576\u7684\u6b04\u4f4d\u548c\u503c\u5c0d\u61c9\u7684\u6587\u6a94\u3002<\/p>\n<h3 id=\"3-verify-collection-name-esWVhRpQpY\">3. \u9a57\u8b49\u96c6\u5408\u540d\u7a31<\/h3>\n<p>\u4ed4\u7d30\u6aa2\u67e5\u4f60\u5728\u4ee3\u78bc\u4e2d\u4f7f\u7528\u7684\u96c6\u5408\u540d\u7a31\u3002\u62fc\u5beb\u932f\u8aa4\u6216\u5927\u5c0f\u5beb\u4e0d\u6b63\u78ba\u6703\u5c0e\u81f4 CollectionIsEmpty \u932f\u8aa4\u3002\u78ba\u4fdd\u96c6\u5408\u540d\u7a31\u8207 MongoDB \u8cc7\u6599\u5eab\u4e2d\u7684\u540d\u7a31\u5b8c\u5168\u5339\u914d\u3002<\/p>\n<h3 id=\"4-restart-mongodb-service-esWVhRpQpY\">4. \u91cd\u555f MongoDB \u670d\u52d9<\/h3>\n<p>\u5982\u679c\u4e0a\u8ff0\u6b65\u9a5f\u7121\u6cd5\u89e3\u6c7a\u554f\u984c\uff0c\u5617\u8a66\u91cd\u555f MongoDB \u670d\u52d9\u3002\u6709\u6642\uff0c\u7c21\u55ae\u7684\u91cd\u555f\u53ef\u4ee5\u4fee\u5fa9\u5c0e\u81f4 CollectionIsEmpty \u932f\u8aa4\u7684\u81e8\u6642\u554f\u984c\u3002<\/p>\n<h2 id=\"summary-esWVhRpQpY\">\u7e3d\u7d50<\/h2>\n<p>MongoDB \u932f\u8aa4\u4ee3\u78bc &#8211; 162 &#8211; CollectionIsEmpty \u767c\u751f\u5728\u4f60\u5617\u8a66\u5c0d\u4e00\u500b\u7a7a\u96c6\u5408\u6216\u4e0d\u5b58\u5728\u7684\u96c6\u5408\u57f7\u884c\u64cd\u4f5c\u6642\u3002\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u8acb\u78ba\u4fdd\u96c6\u5408\u5b58\u5728\u3001\u5305\u542b\u6587\u6a94\uff0c\u4e26\u4e14\u4f60\u5728\u4ee3\u78bc\u4e2d\u4f7f\u7528\u4e86\u6b63\u78ba\u7684\u96c6\u5408\u540d\u7a31\u3002\u5982\u679c\u932f\u8aa4\u4ecd\u7136\u5b58\u5728\uff0c\u5617\u8a66\u91cd\u555f MongoDB \u670d\u52d9\u3002<\/p>\n<p>\u5982\u9700\u53ef\u9760\u4e14\u9ad8\u6548\u80fd\u7684 VPS \u4e3b\u6a5f\u670d\u52d9\uff0c\u8acb\u8003\u616e <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002\u6211\u5011\u7684\u9999\u6e2f VPS \u4e3b\u6a5f\u670d\u52d9\u63d0\u4f9b\u5353\u8d8a\u7684\u6548\u80fd\u548c\u53ef\u64f4\u5c55\u6027\uff0c\u6eff\u8db3\u4f60\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3&#46;&#46;&#46;<\/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-21748","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21748","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=21748"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21748\/revisions"}],"predecessor-version":[{"id":23641,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21748\/revisions\/23641"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}