如何读取json格式的数据？

Question

我有一个函数，我必须将数据以 json 格式发布到 url。当我发送数据时，它会以 json 格式给出响应。但它会向我展示：-

代码给出的输出

&{200 OK 200 HTTP/1.1 1 1 

map[Content-Type:[application/json] X-Request-Id:[CgiFzq669pAYzRABGBAiCQiRtaznvJffAg] 

Keep-Alive:[timeout=60] 

Vary:[Accept-Encoding] 

X-Content-Type-Options:[nosniff] 

X-Download-Options:[noopen] 

X-Permitted-Cross-Domain-Policies:[none] 

Strict-Transport-Security:[max-age=631152000] 

X-Frame-Options:[DENY] 

X-Xss-Protection:[1; mode=block] 

Date:[Tue, 11 Dec 2018 09:35:22 GMT] 

Access-Control-Allow-Headers:[Content-Type, Authorization, Accept] 

Access-Control-Allow-Origin:[*] 

Access-Control-Expose-Headers:[Link]] 0xc420442080 -1 [] false true map[] 0xc42023e100 0xc4200e0d10}

代码是：-

func Token(c *gin.Context) {

   code := c.Query("code")

   responseToken :=TokenResponse{}

   token := models.PostToken{

     ClientID:     "appllication Id",

     ClientSecret: "applicationSecreteId",

     Code:         "code",

     RedirectUri:  c.Request.Host + c.Request.URL.RequestURI(),

   }

   bindData, err := json.Marshal(token)

   if err != nil {

     panic(err)

   }

   var jsonStr = []byte(string(bindData))

   url :="https://connect.squareup.com/oauth2/token"

   req, err := http.Post(url, "application/json", bytes.NewBuffer(jsonStr))

   fmt.Println(req, err)

}

type TokenResponse struct {

  Token      string `json:"access_token"`

  Type       string `json:"token_type"`

  ExpiresAt  string `json:"expires_at"`

  MerchantId string `json:"merchant_id"`

}

预期输出：-

{

  "access_token": "token",

  "token_type": "bearer",

  "expires_at": "2019-01-10T08:20:59Z",

  "merchant_id": "id"

}

但是当我在邮递员中点击“ https://connect.squareup.com/oauth2/token ” url 时它会给我 json 但在 golang 代码中它不会显示任何 json 它将返回上述数据。谁能告诉我如何从上面的响应中获取 json 数据？

Answer 1

尝试这个，respBody, Err := ioutil.ReadAll(req.Body)fmt.Println(string(respBody))var temp TokenResponseerr := json.Unmarshal(respBody, &temp)

Answer 2

您必须像这样阅读响应数据：body, err := ioutil.ReadAll(req.Body)response := map[string]interface{}json.Unmarshal(body,&response)