{"id":207092,"date":"2025-07-08T10:41:58","date_gmt":"2025-07-08T02:41:58","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207092\/"},"modified":"2025-07-08T10:41:58","modified_gmt":"2025-07-08T02:41:58","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8golang%e4%b8%ad%e7%bc%96%e5%86%99bson%e5%bd%a2%e5%bc%8f%e7%9a%84mongo%e6%9f%a5%e8%af%a2%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207092\/","title":{"rendered":"\u5982\u4f55\u5728golang\u4e2d\u7f16\u5199bson\u5f62\u5f0f\u7684mongo\u67e5\u8be2\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u5728golang\u4e2d\u7f16\u5199bson\u5f62\u5f0f\u7684mongo\u67e5\u8be2\uff1f<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-19 23:09:33<\/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\u5728golang\u4e2d\u7f16\u5199bson\u5f62\u5f0f\u7684mongo\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

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4\u884c\u67e5\u8be2\u67e5\u8be2\u6211\u7684 mongodb \u96c6\u5408\uff0c\u4ee5\u6839\u636e nftype \u548c\u6700\u5c0f\u8ddd\u79bb\u83b7\u53d6 ipv4addresses<\/p>\n

db.nfinstancesdb.aggregate([\n  {\n    \"$match\": {\n      \"nftype\": \"amf\"\n    }\n  },\n  {\n    \"$unwind\": \"$ipv4addresses\"\n  },\n  {\n    $group: {\n      \"_id\": \"$distance\",\n      \"ipv4addresses\": {\n        \"$addtoset\": \"$ipv4addresses\"\n      }\n    }\n  },\n  {\n    \"$sort\": {\n      \"_id\": 1\n    }\n  },\n  {\n    \"$limit\": 1\n  }\n])<\/pre>\n
\u8fd9\u7ed9\u51fa\u4e86\u6211\u671f\u671b\u7684\u8f93\u51fa<\/p>\n
[{\"_id\": 10,\"ipv4addresses\": [\"172.16.0.11\",\"172.16.0.10\"]}]<\/pre>\n
\u5982\u4f55\u5728 go \u4e0a\u7f16\u5199\u4e0a\u8ff0\u67e5\u8be2\u7684 bson \u5f62\u5f0f\uff1f <\/p>\n
\u6211\u5728\u4e0b\u9762\u7684\u51fd\u6570\u4e2d\u6267\u884c\u4e86\u64cd\u4f5c\uff0c\u4f46\u83b7\u5f97\u4e86\u6240\u6709 ipv4addresses \u800c\u4e0d\u662f\u4e0a\u9762\u7684\u7ed3\u679c\u3002<\/p>\n
func (m *nfinstancedataaccess) findip(nftype string) ([]nfinstance, error) {\n    var ip []nfinstance\n\n    collection := db.c(collection)\n    pipeline := mongo.pipeline{\n        {{\"$match\", bson.d{\n            {\"nftype\", \"amf\"},\n        }}},\n        {{\"$unwind\", \"$ipv4addresses\"}},\n        {{\"$group\", bson.d{\n            {\"_id\", \"$distance\"},\n            {\"ipv4addresses\", bson.d{\n                {\"$addtoset\", \"$ipv4addresses\"},\n            }},\n        }}},\n        {{\"$sort\", bson.d{\n            {\"_id\", 1},\n        }}},\n        {{\"$limit\", 1}},\n    }\n\n    cursor, err := collection.aggregate(context.background(), pipeline)\n    defer cursor.close(context.background())\n    for cursor.next(context.background()) {\n        var ip []nfinstance\n        err := cursor.decode(&ip)\n        if err != nil {\n            log.fatal(err)\n        }\n        \/\/fmt.println(doc)\n    }\n    return ip, nil\n}<\/pre>\n
\u6211\u7684\u6536\u85cf\u6709\u4ee5\u4e0b\u9879\u76ee<\/p>\n
{\n    \"nfInstanceID\": \"1\",\n    \"nfType\": [\n      \"AMF\"\n    ],\n    \"nfStatus\": [\n      \"REGISTERED\"\n    ],\n    \"ipv4Addresses\": [\n      \"172.16.0.10\"\n    ],\n    \"distance\": 10\n  },\n  {\n    \"nfInstanceID\": \"2\",\n    \"nfType\": [\n      \"UPF\"\n    ],\n    \"nfStatus\": [\n      \"REGISTERED\"\n    ],\n    \"ipv4Addresses\": [\n      \"172.16.0.20\"\n    ],\n    \"distance\": 20\n  },\n  {\n    \"nfInstanceID\": \"3\",\n    \"nfType\": [\n      \"AMF\"\n    ],\n    \"nfStatus\": [\n      \"REGISTERED\"\n    ],\n    \"ipv4Addresses\": [\n      \"172.16.0.30\"\n    ],\n    \"distance\": 30\n  },\n  {\n    \"nfInstanceID\": \"4\",\n    \"nfType\": [\n      \"AMF\"\n    ],\n    \"nfStatus\": [\n      \"REGISTERED\"\n    ],\n    \"ipv4Addresses\": [\n      \"172.16.0.11\"\n    ],\n    \"distance\": 10\n  }<\/pre>\n
\u6211\u671f\u5f85\u76f8\u540c\u6216\u76f8\u4f3c\u7684\u8f93\u51fa\u3002<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u4f60\u7684golang\u4ee3\u7801\u7684\u95ee\u9898\u662f\u4f60\u6ca1\u6709\u5206\u7ec4\u3002<\/p>\n
\u60a8\u53ef\u4ee5\u4f7f\u7528 pipe<\/code> \u6765\u51c6\u5907\u8981\u805a\u5408\u7684\u7ba1\u9053\uff1a<\/p>\n
pipe := db.c(collection).pipe([]bson.m{\n    {\"$match\":  bson.m{\"nftype\": \"amf\"}},\n    {\"$unwind\": \"$ipv4addresses\"},\n    {\"$group\":  bson.m{\n                       \"_id\": \"$distance\",\n                       \"ipv4addresses\": bson.m{\"$addtoset\": \"$ipv4addresses\"},\n                      }},\n    {\"$sort\": bson.m{\"_id\": 1}},\n    {\"$limit\": 1},\n\n})\n\nerr := pipe.all(&ip)<\/pre>\n
\u5982\u679c\u60a8\u4f7f\u7528\u5b98\u65b9\u7684 \uff0c\u60a8\u53ef\u4ee5\u5229\u7528 \u6765\u6267\u884c \u3002\u60a8\u53d1\u5e03\u7684\u793a\u4f8b go \u4ee3\u7801\u7247\u6bb5\u4f7f\u7528 find()<\/code>\uff0c\u8fd9\u4e0e\u805a\u5408\u4e0d\u540c\u3002 <\/p>\n
\u4f8b\u5982\uff0c\u4f7f\u7528 mongodb go \u9a71\u52a8\u7a0b\u5e8f v1.0.4\uff08\u5f53\u524d\uff09\uff1a<\/p>\n
collection := client.Database(\"dbname\").Collection(\"collname\")\npipeline := mongo.Pipeline{\n    {{\"$match\", bson.D{\n        {\"nfType\", \"AMF\"},\n    }}}, \n    {{\"$unwind\", \"$ipv4Addresses\"}},\n    {{\"$group\", bson.D{\n        {\"_id\", \"$distance\"},\n        {\"ipv4Addresses\", bson.D{\n            {\"$addToSet\", \"$ipv4Addresses\"},\n        }},\n    }}}, \n    {{\"$sort\", bson.D{\n        {\"_id\", 1},\n    }}}, \n    {{\"$limit\", 1}},\n}\n\ncursor, err := collection.Aggregate(context.Background(), pipeline)\ndefer cursor.Close(context.Background())\nfor cursor.Next(context.Background()) {\n    doc := bson.D{}\n    err := cursor.Decode(&doc)\n    if err != nil {\n        log.Fatal(err)\n    }\n    fmt.Println(doc)\n}<\/pre>\n
\u60a8\u53d1\u5e03\u7684\u793a\u4f8b\u6587\u6863\u5bf9\u4e8e\u6240\u6709 ipv4addresses<\/code> \u53ea\u6709 1 \u4e2a\u5143\u7d20\uff0c\u6211\u5047\u8bbe\u8fd9\u53ea\u662f\u4e00\u4e2a\u793a\u4f8b\u3002\u4f46\u662f\uff0c\u5982\u679c\u6240\u6709\u6587\u6863\u90fd\u53ea\u6709 1 \u4e2a ipv4addresses<\/code> \u5143\u7d20\u6570\u7ec4\uff0c\u90a3\u4e48\u60a8\u6700\u597d\u53ea\u4f7f\u7528 \u3002<\/p>\n
\u901a\u5e38\uff0c\u5f53\u5e8f\u5217\u5316\u4e3a bson \u65f6\uff08\u4ee5\u53ca\u5f53\u987a\u5e8f\u5f88\u91cd\u8981\u65f6\uff09\uff0c\u4f7f\u7528 \u3002 <\/p>\n
\u672c\u7bc7\u5173\u4e8e\u300a\u5982\u4f55\u5728golang\u4e2d\u7f16\u5199bson\u5f62\u5f0f\u7684mongo\u67e5\u8be2\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8eGolang\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/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-207092","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207092","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=207092"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207092\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}