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本篇內容介紹了“GoFrame框架Scan類型如何轉換”的有關知識,在實際案例的操作過程中,不少人都會遇到這樣的困境,接下來就讓小編帶領大家學習一下如何處理這些情況吧!希望大家仔細閱讀,能夠學有所成!
Scan轉換方法可以實現對任意參數到struct/struct數組/map/map數組的轉換,并且根據開發者輸入的轉換目標參數自動識別執行轉換。
// Scan automatically calls MapToMap, MapToMaps, Struct or Structs function according to // the type of parameter `pointer` to implement the converting. // It calls function MapToMap if `pointer` is type of *map to do the converting. // It calls function MapToMaps if `pointer` is type of *[]map/*[]*map to do the converting. // It calls function Struct if `pointer` is type of *struct/**struct to do the converting. // It calls function Structs if `pointer` is type of *[]struct/*[]*struct to do the converting. func Scan(params interface{}, pointer interface{}, mapping ...map[string]string) (err error)
package main import ( "github.com/gogf/gf/frame/g" "github.com/gogf/gf/util/gconv" ) func main() { type User struct { Uid int Name string } params := g.Map{ "uid": 1, "name": "王中陽", } var user *User if err := gconv.Scan(params, &user); err != nil { panic(err) } g.Dump(user) }
package main import ( "github.com/gogf/gf/frame/g" "github.com/gogf/gf/util/gconv" ) func main() { type User struct { Uid int Name string } params := g.Slice{ g.Map{ "uid": 1, "name": "優弧", }, g.Map{ "uid": 2, "name": "船長", }, } var users []*User if err := gconv.Scan(params, &users); err != nil { panic(err) } g.Dump(users) }
package main import ( "github.com/gogf/gf/frame/g" "github.com/gogf/gf/util/gconv" ) func main() { var ( user map[string]string params = g.Map{ "uid": 1, "name": "王中陽", } ) if err := gconv.Scan(params, &user); err != nil { panic(err) } g.Dump(user) }
package main import ( "github.com/gogf/gf/frame/g" "github.com/gogf/gf/util/gconv" ) func main() { var ( users []map[string]string params = g.Slice{ g.Map{ "uid": 1, "name": "優弧", }, g.Map{ "uid": 2, "name": "船長", }, } ) if err := gconv.Scan(params, &users); err != nil { panic(err) } g.Dump(users) }
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