{"id":207352,"date":"2025-07-08T10:02:07","date_gmt":"2025-07-08T02:02:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207352\/"},"modified":"2025-07-08T10:02:07","modified_gmt":"2025-07-08T02:02:07","slug":"go-%e5%a4%84%e7%90%86-json-%e5%93%8d%e5%ba%94%e5%92%8c%e8%af%b7%e6%b1%82","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207352\/","title":{"rendered":"Go \u5904\u7406 JSON \u54cd\u5e94\u548c\u8bf7\u6c42"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> Go \u5904\u7406 JSON \u54cd\u5e94\u548c\u8bf7\u6c42<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-21 21:48:33<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300aGo \u5904\u7406 JSON \u54cd\u5e94\u548c\u8bf7\u6c42\u300b<\/span>\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9Golang<\/span>\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<\/span>\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60Golang<\/span>\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01<\/p>\n

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

\u6211\u5bf9 go \u6bd4\u8f83\u964c\u751f\uff0c\u867d\u7136\u5230\u76ee\u524d\u4e3a\u6b62\u6211\u5df2\u7ecf\u5f88\u597d\u5730\u7406\u89e3\u4e86\u5176\u4e2d\u7684\u5927\u90e8\u5206\u5185\u5bb9\uff0c\u4f46\u6211\u65e0\u6cd5\u786e\u5207\u5730\u5f04\u6e05\u695a json \u5e94\u8be5\u5982\u4f55\u5904\u7406\u3002 <\/p>\n

\u5047\u8bbe\u6211\u5728\u524d\u7aef\u6709\u4e00\u4e2a\u8bbf\u95ee\u4ee4\u724c\u3002\u6211\u60f3\u4f20\u9012\u5b83\u5e76\u60f3\u5411 api \u53d1\u51fa\u8bf7\u6c42\u6765\u9a8c\u8bc1\u5b83\u3002<\/p>\n

\u8fd9\u662f\u4f20\u9012\u7ed9\u540e\u7aef\u7684 json\uff1a<\/p>\n

{\n   \"accessToken\": \"xxxxxx\"\n}\n\n\ntype test_struct struct {\n    AccessToken string `json:\"accessToken\"`\n}\n\nfunc validateFacebookLogin(w http.ResponseWriter, r *http.Request) {\n    decoder := json.NewDecoder(r.Body)\n    var t test_struct\n    err := decoder.Decode(&t)\n    if err != nil {\n        panic(err)\n    }\n    tokenCheck := \"xxxxxxxxx|xxxxxxxxxxxxxxxxxxxxxxxxxxx\"\n    req, err := http.NewRequest(\"GET\", \"https:\/\/graph.facebook.com\/debug_token\", nil)\n    if err != nil {\n        log.Print(err)\n        os.Exit(1)\n    }\n    q := req.URL.Query()\n\n    q.Add(\"input_token\", t.AccessToken)\n    q.Add(\"access_token\", tokenCheck)\n    req.URL.RawQuery = q.Encode()\n    resp, err := http.Get(req.URL.String())\n    defer resp.Body.Close()\n    bodyBytes, _ := ioutil.ReadAll(resp.Body)\n    bodyString := string(bodyBytes)\n    fmt.Println(bodyString);\n    json.NewEncoder(w).Encode(map[string]string{\"message\": \"FINE\"})\n    json.NewEncoder(w).Encode(resp)\n\n}<\/pre>\n
\u6211\u80fd\u627e\u5230\u7684\u6240\u6709\u6587\u6863\u4f3c\u4e4e\u90fd\u8868\u660e\u5e94\u8be5\u4e3a\u6240\u6709 json \u54cd\u5e94\/\u8bf7\u6c42\u521b\u5efa\u4e00\u4e2a\u7ed3\u6784\uff08\u9664\u975e\u6211\u8bef\u89e3\u4e86\uff09\u3002\u8fd9\u6837\u4e0d\u662f\u5f88\u4e0d\u65b9\u4fbf\u5417\uff1f\u5982\u679c\u6211\u6709\u4e00\u4e2a\u975e\u5e38\u5927\u7684\u5d4c\u5957 json \u54cd\u5e94\u600e\u4e48\u529e\uff1f\u6211\u662f\u5426\u5fc5\u987b\u521b\u5efa\u5b8c\u6574\u54cd\u5e94\u7684\u7ed3\u6784\uff1f <\/p>\n
\u6211\u4e0a\u9762\u4f7f\u7528 ioutil \u7684\u65b9\u6cd5\u662f\u4e0d\u597d\u7684\u505a\u6cd5\u5417\uff1f\u6211\u53ef\u4ee5\u5728\u54ea\u91cc\u4f20\u56de\u6574\u4e2a\u5b57\u7b26\u4e32\u8868\u793a\u5e76\u5728\u524d\u7aef\u5bf9\u5176\u8fdb\u884c\u89e3\u7801\uff1f<\/p>\n
\u6211\u60f3\u6211\u7684\u4e3b\u8981\u95ee\u9898\u662f\uff0c\u6211\u4ec0\u4e48\u65f6\u5019\u5e94\u8be5\u5c06 json \u5206\u914d\u7ed9\u7ed3\u6784\uff1f\u4ec0\u4e48\u88ab\u8ba4\u4e3a\u662f\u6700\u4f73\u5b9e\u8df5\uff1f\u5982\u679c\u6211\u53ea\u60f3\u7acb\u5373\u5c06\u54cd\u5e94\u8fd4\u56de\u5230\u524d\u7aef\uff0c\u6709\u4ec0\u4e48\u610f\u4e49\u5417\uff1f <\/p>\n
\u5047\u8bbe\u6211\u786e\u5b9e\u60f3\u5728\u540e\u7aef\u7ef4\u62a4\u6570\u636e\uff0c\u662f\u5426\u6709\u4efb\u4f55\u201c\u66f4\u597d\u201d\u7684\u65b9\u6cd5\u6765\u5904\u7406\u5927\u578b\u54cd\u5e94\uff1f<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ea\u60f3\u4f7f\u7528 json.unmarshal\u3002\u8fd9\u4e2a\u7528\u4f8b\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u90fd\u6709\u6548\uff1a<\/p>\n
var myclient = &http.client{timeout: 10 * time.second}\n\nfunc getjson(url string, target interface{}) error {\n    r, err := myclient.get(url)\n    if err != nil {\n        return err\n    }\n    defer r.body.close()\n\n    return json.newdecoder(r.body).decode(target)\n}\n\nfoo := foo{}\ngetjson(\"http:\/\/example.com\", &foo2)\nfmt.printf(\"%+v\\n\", foo)<\/pre>\n
\u4f46\u662f\uff0c\u5982\u679c\u60a8\u786e\u5b9e\u6b63\u5728\u5904\u7406\u5927\u578b\u6570\u636e\u96c6\uff0c\u8bf7\u67e5\u770b <\/p>\n
package main\n\nimport (\n    \"encoding\/json\"\n    \"fmt\"\n    \"log\"\n    \"strings\"\n)\n\nfunc main() {\n    const jsonStream = `\n    [\n        {\"Name\": \"Ed\", \"Text\": \"Knock knock.\"},\n        {\"Name\": \"Sam\", \"Text\": \"Who's there?\"},\n        {\"Name\": \"Ed\", \"Text\": \"Go fmt.\"},\n        {\"Name\": \"Sam\", \"Text\": \"Go fmt who?\"},\n        {\"Name\": \"Ed\", \"Text\": \"Go fmt yourself!\"}\n    ]\n`\n    type Message struct {\n        Name, Text string\n    }\n    dec := json.NewDecoder(strings.NewReader(jsonStream))\n\n    \/\/ read open bracket\n    t, err := dec.Token()\n    if err != nil {\n        log.Fatal(err)\n    }\n    fmt.Printf(\"%T: %v\\n\", t, t)\n\n    \/\/ while the array contains values\n    for dec.More() {\n        var m Message\n        \/\/ decode an array value (Message)\n        err := dec.Decode(&m)\n        if err != nil {\n            log.Fatal(err)\n        }\n\n        fmt.Printf(\"%v: %v\\n\", m.Name, m.Text)\n    }\n\n    \/\/ read closing bracket\n    t, err = dec.Token()\n    if err != nil {\n        log.Fatal(err)\n    }\n    fmt.Printf(\"%T: %v\\n\", t, t)\n\n}<\/pre>\n
\u8fd9\u5c06\u4f7f\u60a8\u80fd\u591f\u4ee5\u66f4\u6709\u6548\u7684\u5185\u5b58\u65b9\u5f0f\u5de5\u4f5c\u3002<\/p>\n
\u5173\u4e8e\u60a8\u7684\u66f4\u591a\u95ee\u9898\uff1a<\/p>\n
    \n
  1. \u6211\u662f\u5426\u5fc5\u987b\u89e3\u7ec4\u4e3a\u5b8c\u6574\u7684\u54cd\u5e94\u7ed3\u6784\uff1f – \u4e0d\u662f\u771f\u7684\uff0c\u4f60\u53ea\u9700\u8981\u5b9a\u4e49\u4f60\u60f3\u5728\u7ed3\u6784\u4e2d\u4f7f\u7528\u7684\u5185\u5bb9\uff0c\u5176\u4f59\u7684\u5c06\u88ab\u5ffd\u7565<\/li>\n
  2. \u4f60\u505a\u5bf9\u4e86\u5417\uff1f – \u4f60\u6ca1\u6709\u505a\u4efb\u4f55\u672c\u8d28\u4e0a\u9519\u8bef\u7684\u4e8b\u60c5\u5417\uff1f<\/li>\n<\/ol>\n
    \u5982\u679c\u6709\u4ec0\u4e48\u6211\u6ca1\u6709\u56de\u7b54\u7684\u5730\u65b9\uff0c\u8bf7\u544a\u8bc9\u6211\u3002<\/p>\n
    \u7f16\u8f91\uff1a<\/strong>\u5bf9\u4e8e ioutil.readall<\/code> \u7684\u4f7f\u7528 – \u4e00\u822c\u6765\u8bf4\uff0c\u60a8\u9700\u8981\u5c06\u5176\u89e3\u7ec4\u5230\u4e00\u4e2a\u7ed3\u6784\u4e2d\uff0c\u4ee5\u4fbf\u60a8\u53ef\u4ee5\u5b9e\u9645\u4f7f\u7528<\/em>\u6570\u636e\uff0c\u5e76\u4ece\u4e2d\u53d7\u76ca\u901a\u8fc7\u60a8\u7684\u7ed3\u6784\u5b9e\u73b0\u7c7b\u578b\u5b89\u5168\u3002\u5982\u679c\u60a8\u786e\u5b9e\u53ea\u9700\u8981\u5b57\u7b26\u4e32\uff0c\u90a3\u4e48\u60a8\u6240\u505a\u7684\u5c31\u5f88\u597d\uff0c\u4f46\u901a\u5e38\u60c5\u51b5\u5e76\u975e\u5982\u6b64\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\u300aGo \u5904\u7406 JSON \u54cd\u5e94\u548c\u8bf7\u6c42\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\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-207352","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207352","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=207352"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207352\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207352"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207352"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}