{"id":207949,"date":"2025-07-08T08:32:07","date_gmt":"2025-07-08T00:32:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207949\/"},"modified":"2025-07-08T08:32:07","modified_gmt":"2025-07-08T00:32:07","slug":"%e9%9a%90%e8%97%8f%e7%bb%93%e6%9e%84%e4%bd%93%e5%ad%97%e6%ae%b5%e5%b9%b6%e4%bd%bf%e5%85%b6%e5%90%8c%e6%ad%a5%e5%ad%97%e6%ae%b5%e7%9a%84%e8%ae%bf%e9%97%ae%e5%92%8c%e4%bf%ae%e6%94%b9%e7%9a%84%e6%9c%80","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207949\/","title":{"rendered":"\u9690\u85cf\u7ed3\u6784\u4f53\u5b57\u6bb5\u5e76\u4f7f\u5176\u540c\u6b65\u5b57\u6bb5\u7684\u8bbf\u95ee\u548c\u4fee\u6539\u7684\u6700\u4f73\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u9690\u85cf\u7ed3\u6784\u4f53\u5b57\u6bb5\u5e76\u4f7f\u5176\u540c\u6b65\u5b57\u6bb5\u7684\u8bbf\u95ee\u548c\u4fee\u6539\u7684\u6700\u4f73\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-27 10:03:35<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60Golang<\/span>\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u9690\u85cf\u7ed3\u6784\u4f53\u5b57\u6bb5\u5e76\u4f7f\u5176\u540c\u6b65\u5b57\u6bb5\u7684\u8bbf\u95ee\u548c\u4fee\u6539\u7684\u6700\u4f73\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n

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

\u8fd9\u662f\u6211\u5728\u4f7f\u7528 golang \u7ed3\u6784\u65f6\u9047\u5230\u7684\u95ee\u9898<\/p>\n

type user struct {\n     name  string `json:\"name\"`\n     email string `json:\"email\"`\n }<\/pre>\n
\u73b0\u5728\u6211\u5e0c\u671b\u8be5\u7ed3\u6784\u4f53\u5b57\u6bb5\u7684\u8bbf\u95ee\u548c\u4fee\u6539\u662f\u5e76\u53d1\u5b89\u5168\u7684 \u56e0\u6b64\u6dfb\u52a0\u4e86\u4e92\u65a5\u9501\u5e76\u6dfb\u52a0\u4e86\u9501\u5b9a\u4e92\u65a5\u9501\u7684\u65b9\u6cd5 \u7528\u6237\u4ee3\u7801\u73b0\u5728\u53ea\u80fd\u901a\u8fc7\u65b9\u6cd5\u8bbf\u95ee\u548c\u53d8\u5f02\uff0c\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u5b57\u6bb5<\/p>\n
type user struct {\n     name string  `json:\"name\"`\n     email string `json:\"email\"`\n     sync.rwmutex `json:\"-\"`\n}\n\nfunc (u *user) name() string {\n   u.rlock()\n   defer u.runlock()\n\n   return u.name  \n}\n\nfunc (u *user) email() string {\n   u.rlock()\n   defer u.runlock()\n\n   return u.email  \n}\n\nfunc (u *user) setname(p string) {\n   u.lock()\n   defer u.unlock()\n\n   u.name = p  \n}\n\nfunc (u *user) setemail(p string) {\n   u.rlock()\n   defer u.runlock()\n\n   u.email = p  \n}<\/pre>\n
\u5230\u76ee\u524d\u4e3a\u6b62\u4e00\u5207\u987a\u5229\uff0c\u4f46\u95ee\u9898\u662f json\/bson \u7f16\u7ec4\u5931\u8d25\uff0c\u56e0\u4e3a\u5b83\u9700\u8981\u5bfc\u51fa\u5b57\u6bb5<\/p>\n
\u56e0\u6b64\uff0c\u6211\u5b9e\u73b0\u4e86\u81ea\u5b9a\u4e49\u7f16\u7ec4\uff0c\u5b83\u8fd4\u56de\u7c7b\u4f3c\u7684\u7ed3\u6784\uff0c\u4f46\u5177\u6709\u5bfc\u51fa\u7684\u5b57\u6bb5<\/p>\n
func (self User) MarshalJSON() ([]byte, error) {\n    var usr struct {\n        Name  string `json:\"name\"` \n        Email string `json:\"email,omitempty\"`\n        sync.RWMutex `json:\"-\"`\n    }\n    return json.Marshal(usr)\n}\n\nfunc (self *User) UnmarshalJSON(b []byte) error {\n    var usr struct {\n        Name   string  `json:\"name\"`\n        Email  string  `json:\"email\"` \n        sync.RWMutex   `json:\"-\"`\n    }\n\n    if err := json.Unmarshal(b, &usr); err != nil {\n        return err\n    }\n\n    self.name = usr.Name\n    self.email = usr.Email\n\n    return nil\n}<\/pre>\n
\u4f46\u8fd9\u5e76\u4e0d\u80fd\u5b8c\u5168\u4f7f user \u7ed3\u6784\u5e76\u53d1\u5b89\u5168\uff0c\u56e0\u4e3a\u7f16\u7ec4\u4ee3\u7801\u672a\u9501\u5b9a\u3002<\/p>\n
\u6211\u7684\u95ee\u9898\u662f\u5982\u4f55\u4f7f\u7f16\u7ec4\u4ee3\u7801\u4f7f\u7528\u76f8\u540c\u7684\u4e92\u65a5\u9501\uff1f \u5f53\u6211\u4eec\u521b\u5efa\u8be5\u7ed3\u6784\u7684\u591a\u4e2a\u5b9e\u4f8b\u65f6\uff0c\u4f7f\u4e92\u65a5\u9501\u6210\u4e3a\u5168\u5c40\u5e76\u4e0d\u80fd\u89e3\u51b3\u95ee\u9898\u3002 \u5c01\u9001\u4e2d\u58f0\u660e\u7684\u7528\u6237\u7ed3\u6784\u4e0e\u4e3b\u7528\u6237\u7ed3\u6784\u4e0d\u540c\uff0c\u56e0\u6b64\u9501\u5b9a\u5185\u90e8\u7ed3\u6784\u7684\u4e92\u65a5\u4f53\u662f\u6ca1\u6709\u610f\u4e49\u7684\u3002<\/p>\n
\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\u7684\u6700\u4f73\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u60a8\u4e0d\u5fc5\u5411\u60a8\u7f16\u7ec4\u7684\u503c\u6dfb\u52a0\u4e92\u65a5\u9501\uff0c\u8fd9\u662f\u6beb\u65e0\u610f\u4e49\u7684\u3002<\/p>\n
\u4f46\u662f\u5728\u590d\u5236\u6216\u8bbe\u7f6e\u5176\u5b57\u6bb5\u65f6\uff0c\u60a8\u786e\u5b9e\u9700\u8981\u4f7f\u7528 user<\/code> \u7684\u4e92\u65a5\u9501\u3002<\/p>\n
\u4e00\u4e9b\u91cd\u8981\u7684\u4e8b\u60c5\uff1a<\/strong><\/p>\n
    \n
  • \u5982\u679c\u5d4c\u5165\u975e\u6307\u9488\u4e92\u65a5\u4f53\uff0c\u5219\u5fc5\u987b\u4f7f\u7528\u6307\u9488\u63a5\u6536\u5668\u6307\u5b9a\u6240\u6709\u65b9\u6cd5\uff0c\u5426\u5219\u9501\u5c06\u88ab\u590d\u5236\uff01<\/li>\n
  • \n
    \u60a8\u4e0d\u9700\u8981\u5728\u672a\u5bfc\u51fa\u7684\u5b57\u6bb5\u4e0a\u6307\u5b9a json<\/code> \u6807\u8bb0\uff0c\u8fd9\u662f\u591a\u4f59\u7684\u3002\u66f4\u8fdb\u4e00\u6b65\uff0c\u7531\u4e8e\u60a8\u63d0\u4f9b\u4e86\u81ea\u5df1\u7684\u5c01\u9001\u903b\u8f91\uff0c\u60a8\u751a\u81f3\u4e0d\u5fc5\u63d0\u4f9b\u4efb\u4f55 json<\/code> \u6807\u7b7e\uff0c\u56e0\u4e3a\u5b83\u4eec\u6839\u672c\u4e0d\u4f1a\u88ab\u4f7f\u7528\u3002\u6240\u4ee5\u8fd9\u4e2a user<\/code> \u5c31\u8db3\u591f\u4e86\uff1a<\/p>\n
    type user struct {\n    name  string\n    email string\n    sync.rwmutex\n}<\/pre>\n<\/li>\n
  • \n
    \u5c3d\u7ba1 name<\/code> \u548c email<\/code> \u672a\u5bfc\u51fa\uff0c\u4f46\u8fd9\u4e9b\u503c\u5e76\u4e0d\u201c\u5b89\u5168\u201d\uff0c\u56e0\u4e3a\u60a8\u63d0\u4f9b\u4e86\u5bfc\u51fa\u7684 marshaljson()<\/code> \u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u8fd4\u56de\u8fd9\u4e9b\u503c\uff08\u4ee5 json \u683c\u5f0f\uff09\u3002\u60a8\u4ecd\u7136\u53ef\u4ee5\u5728\u7f16\u8bd1\u65f6\u5b89\u5168\u5730\u8bbf\u95ee user.name<\/code> \u548c user.email<\/code>\uff0c\u4f46\u8981\u77e5\u9053\u5b83\u4eec\u5b58\u50a8\u7684\u503c\u4e0d\u662f\u79d8\u5bc6\u7684\u3002<\/p>\n<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    func (u *User) MarshalJSON() ([]byte, error) {\n    u.RLock()\n    usr := struct {\n        Name  string `json:\"name\"`\n        Email string `json:\"email,omitempty\"`\n    }{u.name, u.email}\n    u.RUnlock()\n\n    return json.Marshal(usr)\n}\n\nfunc (u *User) UnmarshalJSON(b []byte) error {\n    usr := struct {\n        Name  string `json:\"name\"`\n        Email string `json:\"email\"`\n    }{}\n\n    if err := json.Unmarshal(b, &usr); err != nil {\n        return err\n    }\n\n    u.Lock()\n    u.name = usr.Name\n    u.email = usr.Email\n    u.Unlock()\n\n    return nil\n}<\/pre>\n
    \u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8eGolang\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/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-207949","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207949","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=207949"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207949\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207949"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}