go語言實現一個簡單的登入註冊web小程式

最後更新：2014-10-04 來源：互聯網

上載者：User

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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。

最近學習golang也有一段時間了，基礎差不多學了個大概，因為本人是java程式員，所以對web更感興趣。根據《go web編程》中的例子改編一個更簡單的例子，供新手參考，廢話不多說，上菜：

這個例子使用到了beego架構和beedb架構，如果是go新手beego和beedb得自己去google下載安裝。

目錄結構：

index.go

package controllersimport ("fmt""github.com/astaxie/beego""login/models")type IndexController struct {beego.Controller}func (index *IndexController) Get() {sess := index.StartSession()username := sess.Get("username")fmt.Println(username)if username == nil || username == "" {index.TplNames = "index.tpl"} else {index.TplNames = "success.tpl"}}func (index *IndexController) Post() {sess := index.StartSession()var user models.Userinputs := index.Input()//fmt.Println(inputs)user.Username = inputs.Get("username")user.Pwd = inputs.Get("pwd")err := models.ValidateUser(user)if err == nil {sess.Set("username", user.Username)fmt.Println("username:", sess.Get("username"))index.TplNames = "success.tpl"} else {fmt.Println(err)index.TplNames = "error.tpl"}}

regist.go

package controllersimport ("fmt""github.com/astaxie/beego""login/models")type RegistController struct {beego.Controller}func (this *RegistController) Get() {this.TplNames = "regist.tpl"}func (this *RegistController) Post() {var user models.Userinputs := this.Input()//fmt.Println(inputs)user.Username = inputs.Get("username")user.Pwd = inputs.Get("pwd")err := models.SaveUser(user)if err == nil {this.TplNames = "success.tpl"} else {fmt.Println(err)this.TplNames = "error.tpl"}}

models.go

package modelsimport ("database/sql""errors""fmt""github.com/astaxie/beedb"_ "github.com/ziutek/mymysql/godrv")type User struct {Id       int `PK`Username stringPwd      string}func getLink() beedb.Model {db, err := sql.Open("mysql", "root:root@tcp(192.168.1.81:3306)/test_my?charset=utf8")if err != nil {panic(err)}orm := beedb.New(db)return orm}func SaveUser(user User) error {orm := getLink()fmt.Println(user)err := orm.Save(&user)return err}func ValidateUser(user User) error {orm := getLink()var u Userorm.Where("username=? and pwd=?", user.Username, user.Pwd).Find(&u)if u.Username == "" {return errors.New("使用者名稱或密碼錯誤！")}return nil}

main.go

package mainimport (//"fmt""github.com/astaxie/beego""login/controllers")type MainController struct {beego.Controller}func main() {beego.SessionOn = truebeego.RegisterController("/", &controllers.IndexController{})beego.RegisterController("/regist", &controllers.RegistController{})beego.Run()}

error.tpl

<html><body>            error</body></html>

success.tpl

<html><body>            successed</body></html>

index.tpl

<html><body><h1>login</h1><form action="/" method="post">使用者名稱:<input type="text" name="username"><br>密碼:<input type="password" name="pwd"><br><input type="submit" value="登入"><br><a href="/regist">註冊</a></form></body></html>

regist.tpl

<html><body><h1>regist</h1><form action="/regist" method="post">使用者名稱:<input type="text" name="username"><br>密碼:<input type="password" name="pwd"><br><input type="submit" value="註冊"></form></body></html>

資料庫用的是mysql,建表語句

CREATE TABLE user (id      INT,username   VARCHAR(32),pwd VARCHAR(32),PRIMARY KEY(id) );

程式跑起來是沒有問題，但是session老是取不到資料，求大神解釋！

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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