go客户之登录

<form class="form form-horizontal" action="/login" method="post">
  <div class="row cl">
    <label class="form-label col-xs-3"><i class="Hui-iconfont"></i></label>
    <div class="formControls col-xs-8">
      <input id="username" name="username" type="text" placeholder="账户" class="input-text size-L">
    </div>
  </div>
  <div class="row cl">
    <label class="form-label col-xs-3"><i class="Hui-iconfont"></i></label>
    <div class="formControls col-xs-8">
      <input id="password" name="password" type="password" placeholder="密码" class="input-text size-L">
    </div>
  </div>
  {{.}}
  <div class="row cl">
    <div class="formControls col-xs-8 col-xs-offset-3">
      <input name="" type="submit" class="btn btn-success radius size-L" value=" 登    录 ">
      <input name="" type="reset" class="btn btn-default radius size-L" value=" 取    消 ">
    </div>
  </div>
</form>

r.HandleFunc("/", web.Index)
r.HandleFunc("/login", web.Login).Methods("POST")

func Index(w http.ResponseWriter, r *http.Request) {
    w.Header().Set("Content-Type", "text/html;charset=utf-8")
    t, _ := template.ParseFiles("templates/login.html")
    t.Execute(w, nil)
}

func Login(w http.ResponseWriter, r *http.Request) {
    w.Header().Set("Content-Type", "text/html;charset=utf-8")
    username := r.PostFormValue("username")
    password := r.PostFormValue("password")
    user, err := dbdata.Login(username, password)

    if err != nil {
    t, _ := template.ParseFiles("templates/login.html")
    t.Execute(w, "数据库链接失败")
    }

    if user.Username != "" {
    uservo := new(utils.Uservo)
    uservo.Id = user.Id
    uservo.Realname = user.Realname
    uservo.Username = user.Username
    tokenstring := utils.SetToken(*uservo)
    uservo.Token = tokenstring
    SetCookie(w, r, tokenstring)
    t, _ := template.ParseFiles("templates/index.html")
    t.Execute(w, nil)
    } else {
    t, _ := template.ParseFiles("templates/login.html")
    t.Execute(w, "用户密码错误")
    }
}