Go user包

這是一個建立於 的文章，其中的資訊可能已經有所發展或是發生改變。

user的結構：

type User struct {    Uid      string // user id    Gid      string // primary group id    Username string    Name     string    HomeDir  string}

user包中的主要函數：

    type User        func Current() (*User, error)        func Lookup(username string) (*User, error)        func LookupId(uid string) (*User, error)

案例1  windows：

package mainimport ("fmt""os/user")func main() {usr, error := user.Current()if error == nil {fmt.Println(usr)}}[ `go run testuser.go` | done: 7.5934343s ]&{S-1-5-21-2450167352-2372647358-1749370957-1000 S-1-5-21-2450167352-2372647358-1749370957-513 City-PC\City  C:\Users\City}

案例2 windows：

package mainimport ("fmt""os/user")func main() {usr, error := user.Current()if error == nil {fmt.Println(usr.Uid)fmt.Println(usr.Gid)fmt.Println(usr.Username)fmt.Println(usr.Name)fmt.Println(usr.HomeDir)_usr, error1 := user.Lookup(usr.Username)if error1 == nil {fmt.Println(_usr)} else {fmt.Println(error1.Error())}} else {fmt.Println(error.Error())}}[ `go run testuser.go` | done: 14.3608214s ]S-1-5-21-2450167352-2372647358-1749370957-1000S-1-5-21-2450167352-2372647358-1749370957-513City-PC\CityC:\Users\City&{S-1-5-21-2450167352-2372647358-1749370957-1000 unknown City-PC\City  Unknown directory}

案例3 windows：

package mainimport ("fmt""os/user")func main() {usr, error := user.Current()if error == nil {fmt.Println(usr.Uid)fmt.Println(usr.Gid)fmt.Println(usr.Username)fmt.Println(usr.Name)fmt.Println(usr.HomeDir)_usr, error1 := user.Lookup(usr.Uid)if error1 == nil {fmt.Println(_usr)} else {fmt.Println(error1.Error())}} else {fmt.Println(error.Error())}}[ `go run testuser.go` | done: 7.5694329s ]S-1-5-21-2450167352-2372647358-1749370957-1000S-1-5-21-2450167352-2372647358-1749370957-513City-PC\CityC:\Users\CityNo mapping between account names and security IDs was done.

好像uid查詢 在windows上不怎麼起作用

包的bug提示：

 Lookup and LookupId functions do not set Gid and HomeDir fields in the User struct returned on windows.

Linux,Fedora19

code:

package mainimport(        "fmt"        "os/user")func PrintUsr(usr *user.User){        fmt.Println("------------------------------")        fmt.Println("Uid: ",usr.Uid)        fmt.Println("Gid: ",usr.Gid)        fmt.Println("Username: ",usr.Username)        fmt.Println("Name: ",usr.Name)        fmt.Println("HomeDir: ",usr.HomeDir)}func main(){        usr,_ := user.Current()        PrintUsr(usr)        user1,_:=user.Lookup(usr.Name)        PrintUsr(user1)        user2,_:=user.LookupId(usr.Uid)        PrintUsr(user2)}

Result:

[jjy@localhost user]$ go run testuser.go------------------------------Uid:  1000Gid:  1000Username:  jjyName:  jjyHomeDir:  /home/jjy------------------------------Uid:  1000Gid:  1000Username:  jjyName:  jjyHomeDir:  /home/jjy------------------------------Uid:  1000Gid:  1000Username:  jjyName:  jjyHomeDir:  /home/jjy