第GoFrame框架Scan類型轉(zhuǎn)換實(shí)例目錄前言方法定義自動(dòng)識(shí)別轉(zhuǎn)換Struct結(jié)構(gòu)體示例代碼運(yùn)行結(jié)果自動(dòng)識(shí)別轉(zhuǎn)換Struct數(shù)組示例代碼運(yùn)行結(jié)果自動(dòng)識(shí)別轉(zhuǎn)換Map示例代碼運(yùn)行結(jié)果自動(dòng)識(shí)別轉(zhuǎn)換Map數(shù)組示例代碼運(yùn)行結(jié)果總結(jié)

前言

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(kāi)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

//ScanautomaticallycallsMapToMap,MapToMaps,StructorStructsfunctionaccordingto

//thetypeofparameter`pointer`toimplementtheconverting.

//ItcallsfunctionMapToMapif`pointer`istypeof*maptodotheconverting.

//ItcallsfunctionMapToMapsif`pointer`istypeof*[]map/*[]*maptodotheconverting.

//ItcallsfunctionStructif`pointer`istypeof*struct/**structtodotheconverting.

//ItcallsfunctionStructsif`pointer`istypeof*[]struct/*[]*structtodotheconverting.

funcScan(paramsinterface{},pointerinterface{},mapping...map[string]string)(errerror)

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

示例代碼

packagemain

import(

"/gogf/gf/frame/g"

"/gogf/gf/util/gconv"

funcmain(){

typeUserstruct{

Uidint

Namestring

params:=g.Map{

"uid":1,

"name":"王中陽(yáng)",

varuser*User

iferr:=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

packagemain

import(

"/gogf/gf/frame/g"

"/gogf/gf/util/gconv"

funcmain(){

typeUserstruct{

Uidint

Namestring

params:=g.Slice{

g.Map{

"uid":1,

"name":"優(yōu)弧",

g.Map{

"uid":2,

"name":"船長(zhǎng)",

varusers[]*User

iferr:=gconv.Scan(params,amp;users);err!=nil{

panic(err)

g.Dump(users)

自動(dòng)識(shí)別轉(zhuǎn)換Map

packagemain

import(

"/gogf/gf/frame/g"

"/gogf/gf/util/gconv"

funcmain(){

var(

usermap[string]string

params=g.Map{

"uid":1,

"name":"王中陽(yáng)",

iferr:=gconv.Scan(params,user);err!=nil{

panic(err)

g.Dump(user)

自動(dòng)識(shí)別轉(zhuǎn)換Map數(shù)組

packagemain

import(

"/gogf/gf/frame/g"

"/gogf/gf/util/gconv"

funcmain(){

var(

users[]map[string]string

params=g.Slice{

g.Map{

"uid":1,

"name":"優(yōu)弧",

g.Map{

"uid":2,

"name":"船長(zhǎng)",

iferr:=gconv.Scan(params,users);err!=nil{

panic(err)

g.Dump(users)

總結(jié)

我們使用Go語(yǔ)言的開(kāi)發(fā)過(guò)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struc