Scan轉(zhuǎn)換方法可以實(shí)現(xiàn)對(duì)任意參數(shù)到struct/struct數(shù)組/map/map數(shù)組的轉(zhuǎn)換，并且根據(jù)開發(fā)者輸入的轉(zhuǎn)換目標(biāo)參數(shù)自動(dòng)識(shí)別執(zhí)行轉(zhuǎn)換。

方法定義

// 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)

自動(dòng)識(shí)別轉(zhuǎn)換Struct結(jié)構(gòu)體

示例代碼

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(yáng)",
	}
	var user *User
	if err := gconv.Scan(params, &user); err != nil {
		panic(err)
	}
	g.Dump(user)
}

運(yùn)行結(jié)果

自動(dòng)識(shí)別轉(zhuǎn)換Struct數(shù)組

示例代碼

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(yōu)弧",
		},
		g.Map{
			"uid":  2,
			"name": "船長(zhǎng)",
		},
	}
	var users []*User
	if err := gconv.Scan(params, &amp;users); err != nil {
		panic(err)
	}
	g.Dump(users)
}

運(yùn)行結(jié)果

自動(dòng)識(shí)別轉(zhuǎn)換Map

示例代碼

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(yáng)",
		}
	)
	if err := gconv.Scan(params, &user); err != nil {
		panic(err)
	}
	g.Dump(user)
}

運(yùn)行結(jié)果

自動(dòng)識(shí)別轉(zhuǎn)換Map數(shù)組

示例代碼

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(yōu)弧",
			},
			g.Map{
				"uid":  2,
				"name": "船長(zhǎng)",
			},
		}
	)
	if err := gconv.Scan(params, &users); err != nil {
		panic(err)
	}
	g.Dump(users)
}

運(yùn)行結(jié)果

總結(jié)

我們使用Go語(yǔ)言的開發(fā)過程中，json數(shù)據(jù)和結(jié)構(gòu)體的轉(zhuǎn)換是經(jīng)常遇到的。

GoFrame為我們封裝了Scan轉(zhuǎn)換方法可以實(shí)現(xiàn)對(duì)任意參數(shù)到struct/struct數(shù)組/map/map數(shù)組的轉(zhuǎn)換，并且根據(jù)開發(fā)者輸入的轉(zhuǎn)換目標(biāo)參數(shù)自動(dòng)識(shí)別執(zhí)行轉(zhuǎn)換。

以上就是GoFrame框架Scan類型轉(zhuǎn)換實(shí)例的詳細(xì)內(nèi)容，更多關(guān)于GoFrame框架Scan類型轉(zhuǎn)的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

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