如何使用golang提供json回应?
发布时间:2020-12-16 19:20:52 所属栏目:大数据 来源:网络整理
导读:问题:目前我在func索引中打印出我的回复 像这样fmt.Fprintf(w,string(response))但是,如何在请求中正确地发送json,以便它可能被视图消耗? 包主 import ( "fmt" "github.com/julienschmidt/httprouter" "net/http" "log" "encoding/json")type Payload stru
问题:目前我在func索引中打印出我的回复
像这样fmt.Fprintf(w,string(response))但是,如何在请求中正确地发送json,以便它可能被视图消耗? 包主 import ( "fmt" "github.com/julienschmidt/httprouter" "net/http" "log" "encoding/json" ) type Payload struct { Stuff Data } type Data struct { Fruit Fruits Veggies Vegetables } type Fruits map[string]int type Vegetables map[string]int func Index(w http.ResponseWriter,r *http.Request,_ httprouter.Params) { response,err := getJsonResponse(); if err != nil { panic(err) } fmt.Fprintf(w,string(response)) } func main() { router := httprouter.New() router.GET("/",Index) log.Fatal(http.ListenAndServe(":8080",router)) } func getJsonResponse()([]byte,error) { fruits := make(map[string]int) fruits["Apples"] = 25 fruits["Oranges"] = 10 vegetables := make(map[string]int) vegetables["Carrats"] = 10 vegetables["Beets"] = 0 d := Data{fruits,vegetables} p := Payload{d} return json.MarshalIndent(p,""," ") }
您可以设置您的内容类型标题,以便客户端知道期望json
w.Header().Set(“Content-Type”,“application / json”) 将结构编组为json的另一种方法是使用http.ResponseWriter构建编码器 // get a payload p := Payload{d} json.NewEncoder(w).Encode(p) (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |