{"id":208024,"date":"2025-07-08T09:00:51","date_gmt":"2025-07-08T01:00:51","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208024\/"},"modified":"2025-07-08T09:00:51","modified_gmt":"2025-07-08T01:00:51","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e5%8f%a6%e4%b8%80%e4%b8%aa%e5%87%bd%e6%95%b0%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%b7%b2%e8%bf%9e%e6%8e%a5%e5%88%b0-mongodb-%e5%92%8c%e9%9b%86%e5%90%88%e7%9a%84%e5%8f%a5%e6%9f%84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208024\/","title":{"rendered":"\u5982\u4f55\u5728\u53e6\u4e00\u4e2a\u51fd\u6570\u4e2d\u4f7f\u7528\u5df2\u8fde\u63a5\u5230 mongodb \u548c\u96c6\u5408\u7684\u53e5\u67c4\uff1f"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u5728\u53e6\u4e00\u4e2a\u51fd\u6570\u4e2d\u4f7f\u7528\u5df2\u8fde\u63a5\u5230 mongodb \u548c\u96c6\u5408\u7684\u53e5\u67c4\uff1f<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-27 23:12:36<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u6765\u5230\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60Golang\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300a\u5982\u4f55\u5728\u53e6\u4e00\u4e2a\u51fd\u6570\u4e2d\u4f7f\u7528\u5df2\u8fde\u63a5\u5230 mongodb \u548c\u96c6\u5408\u7684\u53e5\u67c4\uff1f\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

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

\u6211\u5728 mongo \u4e0a\u8bbe\u7f6e\u4e86\u4e00\u4e2a\u6570\u636e\u5e93\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e9b\u6211\u9700\u8981\u901a\u8fc7\u7aef\u70b9\u7684 url \u53c2\u6570\u67e5\u8be2\u7684\u6570\u636e\u3002\u4e3a\u4e86\u4f7f\u7528\u8be5\u5e93\uff0c\u6211\u5b9a\u4e49\u4e86\u4e00\u4e9b\u53e5\u67c4\uff0c\u5e76\u5728\u5355\u72ec\u7684 setup()<\/code> \u51fd\u6570\u4e2d\u5b8c\u6210\u4e86\u6570\u636e\u5e93\u8fde\u63a5\u7684\u6574\u4e2a\u8bbe\u7f6e\uff0c\u4f46\u6211\u65e0\u6cd5\u5728\u5176\u5916\u90e8\u4f7f\u7528\u6211\u9700\u8981\u7684\u53e5\u67c4\u3002<\/p>\n

package main\n\nimport (\n    \"context\"\n    \"encoding\/json\"\n    \"fmt\"\n    \"log\"\n    \"net\/http\"\n    \"time\"\n\n    \"github.com\/gorilla\/mux\"\n    \"go.mongodb.org\/mongo-driver\/mongo\"\n    \"go.mongodb.org\/mongo-driver\/mongo\/options\"\n    \"go.mongodb.org\/mongo-driver\/mongo\/readpref\"\n)\n\nfunc setup() {\n    clientoptions := options.client().\n        applyuri(\"mongodb+srv:\/\/<username>:<password>@cluster0.um5qb.mongodb.net\/<db>?retrywrites=true&w=majority\")\n    ctx, cancel := context.withtimeout(context.background(), 10*time.second)\n    defer cancel()\n    client, err := mongo.connect(ctx, clientoptions)\n    if err != nil {\n        log.fatal(err)\n    }\n    err = client.ping(ctx, readpref.primary())\n    if err != nil {\n        log.fatal(err)\n    }\n    defer client.disconnect(ctx)\n    \/\/ db := client.database(\"cities-nighthack\")\n    \/\/ cities := db.collection(\"city\")\n\n}\n\n\/\/ model for user endpoint\ntype user struct {\n    email string `json:\"email\"`\n}\n\n\/\/ fake db to temp store users\nvar users []user\n\n\/\/ checks if json is empty or not\nfunc (u *user) isempty() bool {\n    return u.email == \"\"\n}\n\ntype app struct {\n    mongo *mongo.client\n}\n\nfunc main() {\n    setup()\n    r := mux.newrouter()\n    r.handlefunc(\"\/user\", createuser).methods(\"post\")\n    \/\/ r.handlefunc(\"\/suggest?city_name={city}\", searchcity).methods(\"get\")\n\n    fmt.println(\"server running at port 8080\")\n    log.fatal(http.listenandserve(\":8080\", r))\n\n}\n\nfunc createuser(w http.responsewriter, r *http.request) {\n    w.header().set(\"content-type\", \"application\/json\")\n    if r.body == nil {\n        json.newencoder(w).encode(\"must send data\")\n    }\n\n    var user user\n    err := json.newdecoder(r.body).decode(&user)\n    if err != nil {\n        log.fatal(err)\n    }\n    if user.isempty() {\n        json.newencoder(w).encode(\"invalid! enter user email.\")\n        return\n    }\n    users = append(users, user)\n    json.newencoder(w).encode(user)\n\n}\n\nfunc (a *app) searchcity(w http.responsewriter, r *http.request) {\n\n    vars := mux.vars(r)\n    city := vars[\"city\"]\n    \n}\n<\/pre>\n
\u6211\u60f3\u6211\u53ef\u4ee5\u50cf\u8fd9\u6837\u7b80\u5355\u5730\u4f20\u9012\u5904\u7406\u7a0b\u5e8f\uff1a<\/p>\n
func searchCity(city *mongo.Collection) (w http.ResponseWriter, r *http.Request) {\n...\n}\n<\/pre>\n
\u4f46\u662f\uff0cgmux \u4e0d\u5141\u8bb8\u60a8\u8fd9\u6837\u505a\uff0c\u56e0\u4e3a\u5b83\u9690\u5f0f\u4f20\u5165 http.responsewriter<\/code> \u548c *http.request<\/code>\u3002\u56e0\u6b64\uff0c\u4efb\u4f55\u8f93\u5165\u90fd\u4e0d\u80fd\u51fa\u73b0\u5728\u53c2\u6570\u4e2d\u3002\u6211\u5c1d\u8bd5\u5728\u5168\u7403\u8303\u56f4\u5185\u58f0\u660e\u5b83\u4eec\uff0c\u4f46\u8fd9\u4e0d\u8d77\u4f5c\u7528\uff0c\u5efa\u8bae\u4e0d\u8981\u8fd9\u6837\u505a\u3002\u6709\u4eba\u544a\u8bc9\u6211\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528\u95ed\u5305\u6216\u7ed3\u6784\u6765\u4f20\u9012\u5b83\uff0c\u4f46\u6211\u4e5f\u4e0d\u592a\u660e\u767d\u5982\u4f55\u53bb\u505a\u3002<\/p>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
\u4e00\u79cd\u65b9\u6cd5\u662f\u8fd9\u6837\u7684\uff0c\u9996\u5148\u6dfb\u52a0\u670d\u52a1\u5668\u7c7b\u578b<\/p>\n
type server struct {\n    router *mux.router\n    cities *mongo.collection\n}<\/pre>\n
\u5c06\u8def\u7531\u5305\u88c5\u5668\u6dfb\u52a0\u5230\u670d\u52a1\u5668<\/p>\n
func (s *server) routes() {\n    s.router.handlefunc(\"\/base\", s.handleindex()).methods(\"get\")\n}<\/pre>\n
\u5904\u7406\u51fd\u6570<\/p>\n
func (s *server) handleindex() http.handlerfunc {\n    return func(w http.responsewriter, r *http.request) {\n        cities := s.cities.find(...) \/\/ something like that\n        \/\/ write your response, etc\n    }\n}<\/pre>\n
\u7136\u540e\u5728main\u4e2d<\/p>\n
func main() {\n    sr := &server{\n        router: mux.NewRouter(),\n        cities: getMongoDBCollection('cities') \/\/ implement this one :) should return a *mongo.Collection...\n    }\n    sr.routes()\n...\n}<\/pre>\n
\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\uff01\u66f4\u591a\u5173\u4e8eGolang\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u3002<\/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-208024","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208024","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=208024"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208024\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}