{"id":205627,"date":"2025-06-12T09:42:48","date_gmt":"2025-06-12T01:42:48","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205627\/"},"modified":"2025-06-12T09:42:48","modified_gmt":"2025-06-12T01:42:48","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-mongo-mgo-v2-%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%8a%a8%e6%80%81%e6%9d%a1%e4%bb%b6%e8%bf%9b%e8%a1%8c%e8%81%9a%e5%90%88%e6%9f%a5%e8%af%a2%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205627\/","title":{"rendered":"## \u5982\u4f55\u5728 Mongo Mgo v2 \u4e2d\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\u8fdb\u884c\u805a\u5408\u67e5\u8be2\uff1f"},"content":{"rendered":"

\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0
\n\u300a## \u5982\u4f55\u5728 Mongo Mgo v2 \u4e2d\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\u8fdb\u884c\u805a\u5408\u67e5\u8be2\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230
\n<\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9
\nGOLANG<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01,
\n,
\nmongo mgo v2\u4e2d\u805a\u5408\u67e5\u8be2\u4e2d\u5982\u4f55\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\uff1f<\/strong>,\u5728mongo mgo v2\u4e2d\uff0c\u4f7f\u7528\u805a\u5408\u67e5\u8be2\u65f6\uff0c\u6709\u65f6\u9700\u8981\u5bf9\u6761\u4ef6\u8fdb\u884c\u52a8\u6001\u5339\u914d\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528 bson.m \u7c7b\u578b\u521b\u5efa\u52a8\u6001\u5339\u914d\u6761\u4ef6\u3002,\u539f\u4ee3\u7801\u4e2d\uff0cwhere \u6761\u4ef6\u4f7f\u7528\u4e86 bson.m \u7c7b\u578b\u7684 map \u6765\u5b9a\u4e49\u5339\u914d\u6761\u4ef6\u3002\u5f53\u77e5\u8bc6\u70b9\u548c\u96be\u5ea6\u4e3a\u53ef\u9009\u9879\u65f6\uff0c\u9700\u8981\u6839\u636e\u662f\u5426\u5b58\u5728\u503c\u6765\u52a8\u6001\u6784\u9020\u6761\u4ef6\u3002,bson.m \u662f\u4e00\u4e2a map[string]interface{} \u7c7b\u578b\uff0c\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc7\u5224\u65ad\u952e\u662f\u5426\u5b58\u5728\u6765\u5224\u65ad\u662f\u5426\u8bbe\u7f6e\u4e86\u6761\u4ef6\u3002\u4f8b\u5982\uff1a,\u5728\u6b64\u793a\u4f8b\u4e2d\uff0cquery map \u6839\u636e userid\u3001bankid \u548c difficulty \u7684\u503c\u52a8\u6001\u6dfb\u52a0\u6216\u5220\u9664\u952e\u3002,\u7136\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528 query map \u6765\u6784\u9020\u5339\u914d\u6761\u4ef6\uff1a,\u5b8c\u6210\u52a8\u6001\u6761\u4ef6\u6784\u9020\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u805a\u5408\u7ba1\u9053\u5c06\u6761\u4ef6\u4e0e\u5176\u4ed6\u7ba1\u9053\u64cd\u4f5c\uff08\u5982\u91c7\u6837\uff09\u7ec4\u5408\u4f7f\u7528\uff1a,\u901a\u8fc7\u4f7f\u7528 bson.m \u7c7b\u578b\u548c\u52a8\u6001\u6761\u4ef6\u6784\u9020\uff0c\u53ef\u4ee5\u5728 mongo mgo v2 \u4e2d\u7f16\u5199\u7075\u6d3b\u7684\u805a\u5408\u67e5\u8be2\uff0c\u4ee5\u6839\u636e\u8fd0\u884c\u65f6\u503c\u8fdb\u884c\u5339\u914d\u3002,\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a## \u5982\u4f55\u5728 Mongo Mgo v2 \u4e2d\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\u8fdb\u884c\u805a\u5408\u67e5\u8be2\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002,mongo mgo v2\u4e2d\u805a\u5408\u67e5\u8be2\u4e2d\u5982\u4f55\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\uff1f,\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0
\n\u300a## \u5982\u4f55\u5728 Mongo Mgo v2 \u4e2d\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\u8fdb\u884c\u805a\u5408\u67e5\u8be2\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230
\n<\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9
\nGOLANG<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01,
\n<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> ## \u5982\u4f55\u5728 Mongo Mgo v2 \u4e2d\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\u8fdb\u884c\u805a\u5408\u67e5\u8be2\uff1f<\/span><\/p>\n

## \u5982\u4f55\u5728 Mongo Mgo v2 \u4e2d\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\u8fdb\u884c\u805a\u5408\u67e5\u8be2\uff1f<\/h1>\n

2024-10-26 17:16:45<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0\u300a## \u5982\u4f55\u5728 Mongo Mgo v2 \u4e2d\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\u8fdb\u884c\u805a\u5408\u67e5\u8be2\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9GOLANG<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n

<\/p>\n

mongo mgo v2\u4e2d\u805a\u5408\u67e5\u8be2\u4e2d\u5982\u4f55\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\uff1f<\/strong><\/p>\n

\u5728mongo mgo v2\u4e2d\uff0c\u4f7f\u7528\u805a\u5408\u67e5\u8be2\u65f6\uff0c\u6709\u65f6\u9700\u8981\u5bf9\u6761\u4ef6\u8fdb\u884c\u52a8\u6001\u5339\u914d\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528 bson.m \u7c7b\u578b\u521b\u5efa\u52a8\u6001\u5339\u914d\u6761\u4ef6\u3002<\/p>\n

\u539f\u4ee3\u7801\u4e2d\uff0cwhere \u6761\u4ef6\u4f7f\u7528\u4e86 bson.m \u7c7b\u578b\u7684 map \u6765\u5b9a\u4e49\u5339\u914d\u6761\u4ef6\u3002\u5f53\u77e5\u8bc6\u70b9\u548c\u96be\u5ea6\u4e3a\u53ef\u9009\u9879\u65f6\uff0c\u9700\u8981\u6839\u636e\u662f\u5426\u5b58\u5728\u503c\u6765\u52a8\u6001\u6784\u9020\u6761\u4ef6\u3002<\/p>\n

bson.m \u662f\u4e00\u4e2a map[string]interface{} \u7c7b\u578b\uff0c\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc7\u5224\u65ad\u952e\u662f\u5426\u5b58\u5728\u6765\u5224\u65ad\u662f\u5426\u8bbe\u7f6e\u4e86\u6761\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n

query := make(map[string]interface{})\nquery[\"user_id\"] = userid\nif bankid > 0 {\n    query[\"bank_id\"] = bankid\n}\nif difficulty != \"\" {\n    query[\"difficulty\"] = difficulty\n}<\/pre>\n
\u5728\u6b64\u793a\u4f8b\u4e2d\uff0cquery map \u6839\u636e userid\u3001bankid \u548c difficulty \u7684\u503c\u52a8\u6001\u6dfb\u52a0\u6216\u5220\u9664\u952e\u3002<\/p>\n
\u7136\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528 query map \u6765\u6784\u9020\u5339\u914d\u6761\u4ef6\uff1a<\/p>\n
where := bson.m{\"$match\": query}<\/pre>\n
\u5b8c\u6210\u52a8\u6001\u6761\u4ef6\u6784\u9020\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u805a\u5408\u7ba1\u9053\u5c06\u6761\u4ef6\u4e0e\u5176\u4ed6\u7ba1\u9053\u64cd\u4f5c\uff08\u5982\u91c7\u6837\uff09\u7ec4\u5408\u4f7f\u7528\uff1a<\/p>\n
num := bson.M{\"$sample\": bson.M{\"size\": questionNum}}\n\nerr := repo.collection().Pipe([]bson.M{where, num}).All(&b)\nif err != nil {\n    return nil, err\n}<\/pre>\n
\u901a\u8fc7\u4f7f\u7528 bson.m \u7c7b\u578b\u548c\u52a8\u6001\u6761\u4ef6\u6784\u9020\uff0c\u53ef\u4ee5\u5728 mongo mgo v2 \u4e2d\u7f16\u5199\u7075\u6d3b\u7684\u805a\u5408\u67e5\u8be2\uff0c\u4ee5\u6839\u636e\u8fd0\u884c\u65f6\u503c\u8fdb\u884c\u5339\u914d\u3002<\/p>\n
\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a## \u5982\u4f55\u5728 Mongo Mgo v2 \u4e2d\u4f7f\u7528\u52a8\u6001\u6761\u4ef6\u8fdb\u884c\u805a\u5408\u67e5\u8be2\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n
\n
\n <\/dt>\n
\n   PHP \u51fd\u6570\u4e2d\u7684\u5806\u6808\u6ea2\u51fa\u5bf9\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u7684\u5f71\u54cd\n <\/dd>\n<\/dl>\n
\n
\n <\/dt>\n
\n   golang\u6846\u67b6\u4e0eASP.NET Core\u6846\u67b6\u7684\u4f18\u70b9\u5bf9\u6bd4\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0 ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-205627","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205627","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=205627"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205627\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}