Identity用户管理入门三（注册用户）

用户注册主要有2个方法，1、密码加密 2、用户注册 3、ASP.NET Core Identity 使用密码策略、锁定和 cookie 配置等设置的默认值。 可以在类中重写这些设置 Startup（官方详情点这里）

首先创建CreateUserViewModel视图模型

using System.ComponentModel;
using System.ComponentModel.DataAnnotations;

namespace Shop.ViewModel
{
    public class CreateUserViewModel
    {
        [Required(ErrorMessage = "用户名不能为空")]
        [DisplayName("用户名")]
        public string UserName { get; set; }

        [EmailAddress(ErrorMessage = "邮箱格式不正确")]
        [DisplayName("邮箱")]
        public string Email { get; set; }

        [DisplayName("手机号")]
        [MinLength(11,ErrorMessage = "手机位数不足11位"), StringLength(11)]
        public string PhoneNumber { get; set; }

        [Required(ErrorMessage = "密码不能为空")]
        [DataType(DataType.Password)]
        [DisplayName("密码")]
        public string PasswordHash { get; set; }
    }
}

创建regiseter方法

public IActionResult Register()
{
    return View();
}

创建Register视图

@model Shop.ViewModel.CreateUserViewModel
@{
    ViewData["Title"] = "Register";
}

<h1>Register</h1>
<form class="form-horizontal" asp-action="Register" method="post">
    <div asp-validation-summary="ModelOnly" class="text-danger"></div>
    <fieldset>
        <div class="control-group">
            <label class="control-label">用户名</label>
            <div class="controls">
                <input type="text" placeholder="" class="input-xlarge" asp-for="UserName">
                <span asp-validation-for="UserName" class="text-danger"></span>
            </div>
        </div>

        <div class="control-group">
            <label class="control-label">邮箱</label>
            <div class="controls">
                <input type="text" placeholder="" class="input-xlarge" asp-for="Email">
                <span asp-validation-for="Email" class="text-danger"></span>
            </div>
        </div>

        <div class="control-group">
            <label class="control-label">手机号</label>
            <div class="controls">
                <input type="text" placeholder="" class="input-xlarge" asp-for="PhoneNumber">
                <span asp-validation-for="PhoneNumber" class="text-danger"></span>
            </div>
        </div>

        <div class="control-group">
            <label class="control-label">密码</label>
            <div class="controls">
                <input type="text" placeholder="" class="input-xlarge" asp-for="PasswordHash">
                <span asp-validation-for="PasswordHash" class="text-danger"></span>
            </div>
        </div>
        <input type="submit" class="btn btn-primary" value="注册">
    </fieldset>
</form>
@*输入内容跟模型定义规则不符时需要验证提示加入此脚本*@
@section Scripts {
    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
}

创建Register post方法

[HttpPost]
public async Task<IActionResult> Register(CreateUserViewModel input)
{
    if (ModelState.IsValid)
    {
        var user = new IdentityUser
        {
            UserName = input.UserName,
            Email = input.Email,
            PhoneNumber = input.PhoneNumber,
            PasswordHash = input.PasswordHash
        };        //创建用户
        var result = await _userManager.CreateAsync(user);
        //如果成功则返回用户列表
        if (result.Succeeded)
        {
            return RedirectToAction("Index");
        }
    }
    return View(input);
}

效果展示，如果验证错误则有如下提示

如果成功提交则返回用户列表页，注意：未做编号自增及用户名是否重复的验证