{"id":176179,"date":"2024-11-08T10:44:18","date_gmt":"2024-11-08T02:44:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/176179\/"},"modified":"2024-11-08T10:44:19","modified_gmt":"2024-11-08T02:44:19","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-97-%e6%9c%aa%e6%89%be%e5%88%b0%e6%8a%95%e5%bd%b1","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/176179\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 97 &#8211; \u672a\u627e\u5230\u6295\u5f71"},"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-97-%e6%9c%aa%e6%89%be%e5%88%b0%e6%8a%95%e5%bd%b1-TsOINHeein\">\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc &#8211; 97 &#8211; \u672a\u627e\u5230\u6295\u5f71<\/h1>\n<p>\u5728\u4f7f\u7528MongoDB\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\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\u78bc97\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u986f\u793a\u70ba\u201c\u672a\u627e\u5230\u6295\u5f71\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u67e5\u8a62\u7684\u6295\u5f71\u90e8\u5206\u6709\u95dc\uff0c\u7279\u5225\u662f\u5728\u67e5\u8a62\u4e2d\u6307\u5b9a\u7684\u5b57\u6bb5\u4e0d\u6b63\u78ba\u6216\u4e0d\u5b58\u5728\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc97%e7%9a%84%e5%8e%9f%e5%9b%a0-TsOINHeein\">\u932f\u8aa4\u4ee3\u78bc97\u7684\u539f\u56e0<\/h2>\n<p>MongoDB\u7684\u6295\u5f71\u529f\u80fd\u5141\u8a31\u7528\u6236\u5728\u67e5\u8a62\u4e2d\u6307\u5b9a\u8981\u8fd4\u56de\u7684\u5b57\u6bb5\u3002\u7576\u4f60\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684\u5b57\u6bb5\u540d\u7a31\u6216\u683c\u5f0f\u6642\uff0c\u5c31\u6703\u51fa\u73fe\u932f\u8aa4\u4ee3\u78bc97\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u5b57\u6bb5\u540d\u7a31\u62fc\u5beb\u932f\u8aa4\uff1a<\/strong>\u5982\u679c\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u5b57\u6bb5\u540d\u7a31\u62fc\u5beb\u932f\u8aa4\uff0cMongoDB\u5c07\u7121\u6cd5\u627e\u5230\u8a72\u5b57\u6bb5\uff0c\u5f9e\u800c\u5c0e\u81f4\u932f\u8aa4\u3002<\/li>\n<li><strong>\u5b57\u6bb5\u4e0d\u5b58\u5728\uff1a<\/strong>\u5982\u679c\u4f60\u5617\u8a66\u67e5\u8a62\u7684\u5b57\u6bb5\u5728\u6578\u64da\u5eab\u4e2d\u6839\u672c\u4e0d\u5b58\u5728\uff0c\u5247\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4e0d\u6b63\u78ba\u7684\u6295\u5f71\u683c\u5f0f\uff1a<\/strong>\u6295\u5f71\u7684\u683c\u5f0f\u5fc5\u9808\u6b63\u78ba\uff0c\u4f8b\u5982\uff0c\u4f7f\u7528\u4e86\u4e0d\u652f\u6301\u7684\u64cd\u4f5c\u7b26\u6216\u8a9e\u6cd5\u932f\u8aa4\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%bc97-TsOINHeein\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4\u4ee3\u78bc97<\/h2>\n<p>\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc97\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%ad%97%e6%ae%b5%e5%90%8d%e7%a8%b1-TsOINHeein\">1. \u6aa2\u67e5\u5b57\u6bb5\u540d\u7a31<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u5b57\u6bb5\u540d\u7a31\u662f\u5426\u6b63\u78ba\u3002\u4f60\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u4f86\u78ba\u8a8d\u5b57\u6bb5\u540d\u7a31\uff1a<\/p>\n<pre><code>db.collection.find({}, { \"\u6b63\u78ba\u7684\u5b57\u6bb5\u540d\u7a31\": 1 })<\/code><\/pre>\n<p>\u78ba\u4fdd\u5b57\u6bb5\u540d\u7a31\u8207\u6578\u64da\u5eab\u4e2d\u7684\u5b57\u6bb5\u5b8c\u5168\u4e00\u81f4\uff0c\u5305\u62ec\u5927\u5c0f\u5beb\u3002<\/p>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d%e5%ad%97%e6%ae%b5%e5%ad%98%e5%9c%a8-TsOINHeein\">2. \u78ba\u8a8d\u5b57\u6bb5\u5b58\u5728<\/h3>\n<p>\u5982\u679c\u5b57\u6bb5\u540d\u7a31\u6b63\u78ba\uff0c\u4f46\u4ecd\u7136\u51fa\u73fe\u932f\u8aa4\uff0c\u5247\u9700\u8981\u78ba\u8a8d\u8a72\u5b57\u6bb5\u662f\u5426\u5b58\u5728\u65bc\u6578\u64da\u5eab\u4e2d\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u6aa2\u67e5\u96c6\u5408\u4e2d\u7684\u6587\u6a94\uff1a<\/p>\n<pre><code>db.collection.findOne()<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u96c6\u5408\u4e2d\u7684\u4e00\u500b\u6587\u6a94\uff0c\u8b93\u4f60\u6aa2\u67e5\u6240\u6709\u53ef\u7528\u7684\u5b57\u6bb5\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e6%8a%95%e5%bd%b1%e6%a0%bc%e5%bc%8f-TsOINHeein\">3. \u6aa2\u67e5\u6295\u5f71\u683c\u5f0f<\/h3>\n<p>\u78ba\u4fdd\u6295\u5f71\u7684\u683c\u5f0f\u6b63\u78ba\u3002MongoDB\u7684\u6295\u5f71\u61c9\u8a72\u662f\u4ee5\u9375\u503c\u5c0d\u7684\u5f62\u5f0f\u51fa\u73fe\uff0c\u503c\u901a\u5e38\u662f1\u62160\uff0c\u8868\u793a\u662f\u5426\u5305\u542b\u8a72\u5b57\u6bb5\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>db.collection.find({}, { \"field1\": 1, \"field2\": 0 })<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0cfield1\u5c07\u88ab\u8fd4\u56de\uff0c\u800cfield2\u5c07\u4e0d\u6703\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e6%ad%a3%e7%a2%ba%e7%9a%84%e6%9f%a5%e8%a9%a2%e8%aa%9e%e6%b3%95-TsOINHeein\">4. \u4f7f\u7528\u6b63\u78ba\u7684\u67e5\u8a62\u8a9e\u6cd5<\/h3>\n<p>\u78ba\u4fdd\u4f60\u7684\u67e5\u8a62\u8a9e\u6cd5\u6b63\u78ba\u3002MongoDB\u7684\u67e5\u8a62\u8a9e\u6cd5\u6709\u5176\u7279\u5b9a\u7684\u8981\u6c42\uff0c\u4efb\u4f55\u8a9e\u6cd5\u932f\u8aa4\u90fd\u53ef\u80fd\u5c0e\u81f4\u67e5\u8a62\u5931\u6557\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u6b63\u78ba\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>db.collection.find({ \"field\": \"value\" }, { \"field1\": 1 })<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-TsOINHeein\">\u7e3d\u7d50<\/h2>\n<p>MongoDB\u932f\u8aa4\u4ee3\u78bc97\u901a\u5e38\u662f\u7531\u65bc\u67e5\u8a62\u4e2d\u7684\u6295\u5f71\u90e8\u5206\u51fa\u73fe\u554f\u984c\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u5b57\u6bb5\u540d\u7a31\u3001\u78ba\u8a8d\u5b57\u6bb5\u5b58\u5728\u3001\u6aa2\u67e5\u6295\u5f71\u683c\u5f0f\u4ee5\u53ca\u4f7f\u7528\u6b63\u78ba\u7684\u67e5\u8a62\u8a9e\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u53ef\u4ee5\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MongoDB\u932f\u8aa4\u4ee3\u78bc97\uff1a\u672a\u627e\u5230\u6295\u5f71\uff0c\u89e3\u6c7a\u67e5\u8a62\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u548c\u7a69\u5b9a\u6027\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-176179","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176179","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=176179"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176179\/revisions"}],"predecessor-version":[{"id":176180,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/176179\/revisions\/176180"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=176179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=176179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=176179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}