Development using ASP.NET Core information collection system will add the user to the enterprise data micro letter

First, start Visual Studio 2019, create ASP.NET Core Web Application

Second, in the Models folder to add a new item Person.cs

using System.ComponentModel.DataAnnotations;
using Microsoft.AspNetCore.Mvc;

namespace 信息采集系统.Models
{
    public class Person
    {
        [Display(Name = "编号")]
        public int ID { get; set; }
        [Display(Name = "姓名")]
        [Required(ErrorMessage = "必须输入姓名")]
        [Remote("CheckName", "MyValidation")]
        public string Name { get; set; }
        [Display(Name = "性别")]
        public Gender Gender { get; set; }
        [Display(Name = "手机号")]
        [Required(ErrorMessage = "必须输入手机号码")]
        [StringLength(11, ErrorMessage = "手机号码长度应为11位", MinimumLength = 11)]
        public string Mobile { get; set; }
        [Remote("CheckFatherName", "MyValidation")]
        public string FatherName { get; set; }
        [Remote("CheckMotherName", "MyValidation")]
        public string MotherName { get; set; }
        [Display(Name = "邀请码")]
        [Required(ErrorMessage = "必须输入认证码")]
        [Remote("CheckInvitationCode", "MyValidation")]
        public string InvitationCode { get; set; }
    }
    public enum Gender
    {
        [Display(Name = "男")]
        Male = 1,
        [Display(Name = "女")]
        Female = 2
    }
}

三、在Controllers文件夹，添加“新搭建基架的项目”

点击数据上下文右侧的加号按钮，新建一个数据上下文类

修改StartUp.cs

        public void ConfigureServices(IServiceCollection services)
        {
            services.Configure<CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded = context => true;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });


            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);

            services.AddDbContext<PersonContext>(options =>
                    options.UseSqlServer(PersonContext.ConnectionString));
        }

修改PersonContext.cs

using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;

namespace 信息采集系统.Models
{
    public class PersonContext : DbContext
    {
        public static string ConnectionString
        {
            get
            {
                var path = AppDomain.CurrentDomain.BaseDirectory;
                var DatabasePath = System.IO.Path.Combine(new string[] { path, "Person.mdf" });
                var s = $"Data Source=(LocalDB)\\MSSQLLocalDB;Initial Catalog=Person;AttachDbFilename={DatabasePath};";
                return s;
            }
        }

        public PersonContext (DbContextOptions<PersonContext> options)
            : base(options)
        {
        }

        public DbSet<信息采集系统.Models.Person> Person { get; set; }
    }
}

 四、添加控制器MyValidationController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;

namespace 信息采集系统.Controllers
{
    public class MyValidationController : Controller
    {
        private Models.PersonContext _context { get; set; }
        public MyValidationController(Models.PersonContext context)
        {
            this._context = context;
        }
        public JsonResult CheckName(string Name)
        {
            var chinese= Common.PinyinHelper.IsChineseString(Name);
            if (chinese)
            {
                return Json(true);
            }
            else
            {
                return Json("姓名必须输入中文");
            }
        }
        public JsonResult CheckFatherName(string FatherName)
        {
            var chinese = Common.PinyinHelper.IsChineseString(FatherName);
            if (chinese)
            {
                return Json(true);
            }
            else
            {
                return Json("姓名必须输入中文");
            }
        }

        public JsonResult CheckMotherName(string MotherName)
        {
            var chinese = Common.PinyinHelper.IsChineseString(MotherName);
            if (chinese)
            {
                return Json(true);
            }
            else
            {
                return Json("姓名必须输入中文");
            }
        }
        public JsonResult CheckInvitationCode(string InvitationCode)
        {
            var b = Common.InvitationCode.IsValid(InvitationCode);
            if (b)
            {
                var item = _context.Person.FirstOrDefault(x => x.InvitationCode == InvitationCode);
                if (item == null)
                {
                    return Json(true);
                }
                else
                {
                    return Json($"此邀请码已被使用，使用人：{item.Name}");
                }
            }
            else
            {
                return Json("错误的邀请码");
            }
        }
    }
}

五、添加控制器Database.cs，用于创建数据库和删除数据库。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;

namespace 信息采集系统.Controllers
{
    public class DatabaseController : Controller
    {
        private Models.PersonContext _context { get; set; }
        public DatabaseController(Models.PersonContext context)
        {
            this._context = context;
        }
        public string Create()
        {
            var isCreated = _context.Database.EnsureCreated();
            return $"Create={isCreated}";
        }
        public string Delete()
        {
            var IsDeleted = _context.Database.EnsureDeleted();
            return $"Create={IsDeleted}";

        }
    }
}

六、修改Views/Person/Create.cshtml，解决性别枚举类型无法列出枚举值的问题。

                <select asp-for="Gender" asp-items="@Html.GetEnumSelectList(typeof(Gender))" class="form-control"></select>

七、修改StartUp.cs，增加配置文件读取

        public static IConfiguration Config { get; set; }
        public static string CorpId { get { return Config.GetSection("CorpId").Value; } }
        public static string CorpSecret { get { return Config.GetSection("CorpSecret").Value; } }
        public static long DefaultDepartment { get { return int.Parse(Config.GetSection("DefaultDepartment").Value); } }

        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
            Config = configuration;
        }

八、添加微信操作类AccessToken.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.IO;
using System.Text;

namespace 信息采集系统.Common
{
    public class AccessToken : JsonObject<AccessToken>
    {
        [DataMember] public int errcode { get; set; }
        [DataMember] public string errmsg { get; set; }
        [DataMember] public string access_token { get; set; }
        [DataMember] public int expires_in { get; set; }
        public static AccessToken Update()
        {
            var CorpId = Startup.CorpId;
            var Secret = Startup.CorpSecret;
            var url = $"https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid={CorpId}&corpsecret={Secret}";
            var b = WebHelper.HttpGet(url);
            var item = AccessToken.From(b);
            return item;
        }
    }
}

添加微信操作类QiYeWeiXinUser.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.IO;
using System.Text;

namespace 信息采集系统.Common
{
    public class QiYeWeiXinUser
    {
        [DataContract]
        private class GetUserInfo : JsonObject<GetUserInfo>
        {
            [DataMember] public long errcode { get; set; }
            [DataMember] public string errmsg { get; set; }
            [DataMember] public string userid { get; set; }
            [DataMember] public string name { get; set; }
            [DataMember] public long[] department { get; set; }
            [DataMember] public string mobile { get; set; }
            [DataMember] public string gender { get; set; }
            [DataMember]public UserExtAttr extattr { get; set; }
        }
        [DataContract]
        private class AddUserRequest : JsonObject<AddUserRequest>
        {
            [DataMember] public string userid { get; set; }
            [DataMember] public string name { get; set; }
            [DataMember] public long[] department { get; set; }
            [DataMember] public string mobile { get; set; }
            [DataMember] public string gender { get; set; }
            [DataMember]public UserExtAttr extattr { get; set; }
        }
        [DataContract]
        public class AddUserResponse : JsonObject<AddUserResponse>
        {
            [DataMember] public long errcode { get; set; }
            [DataMember] public string errmsg { get; set; }

        }
        [DataContract]
        public class UserExtAttr
        {
            [DataMember]public List<UserAttr> attrs { get; set; }
        }
        [DataContract]
        public class UserAttr
        {
            [DataMember]public long type { get; set; }
            [DataMember]public string name { get; set; }
            [DataMember]public AttrText text { get; set; }
        }
        [DataContract]
        public class AttrText
        {
            [DataMember]public string value { get; set; }
        }

        public static bool Exist(string access_token, string userid)
        {
            var url = $"https://qyapi.weixin.qq.com/cgi-bin/user/get?access_token={access_token}&userid={userid}";
            var web = System.Net.WebRequest.Create(url);
            using (var responseStream = web.GetResponse().GetResponseStream())
            {
                var sr = new System.IO.StreamReader(responseStream);
                var s = sr.ReadToEnd();
                var b = System.Text.Encoding.UTF8.GetBytes(s);
                var item = GetUserInfo.From(b);
                if (item == null)
                {
                    return false;
                }
                else
                {
                    if (item.userid != userid)
                    {
                        return false;
                    }
                    else
                    {
                        return true;
                    }
                }
            }

        }

        public static bool Add(string accesstoken, string userid, string name, string mobile, string gender, long[] department,string fatherName,string motherName, out string errmsg)
        {
            var user = new AddUserRequest()
            {
                userid = userid,
                name = name,
                mobile = mobile,
                gender = gender,
                department = department,
                extattr = new UserExtAttr()
                {
                    attrs = new List<UserAttr>()
                    {
                        new UserAttr()
                        {
                            type = 0,
                            name = "父亲",
                            text = new AttrText() { value = fatherName }
                        },
                        new UserAttr()
                        {
                            type = 0,
                            name = "母亲",
                            text = new AttrText() { value = motherName }
                        }
                    }
                }
            };

            var b = user.ToArray();
            var url = $"https://qyapi.weixin.qq.com/cgi-bin/user/create?access_token={accesstoken}";
            var rb = WebHelper.HttpPost(url, b);
            var response = AddUserResponse.From(rb);
            if (response.errcode == 0)
            {
                errmsg = "";
                return true;
            }
            else
            {
                errmsg = response.errmsg;
                return false;
            }
        }
    }
}

九、修改PersonController.cs

        public async Task<IActionResult> Create([Bind("ID,FullName,Gender,Mobile,InvitationCode")] Student student)
        {
            if (ModelState.IsValid)
            {
                #region 添加到企业微信
                var pinyin = PinyinHelper.GetPinyin(student.FullName);
                var token = AccessToken.Update();
                var index = 0;
                var userid = "";
                var exist = true;
                while (exist)
                {
                    if (index == 0)
                    {
                        userid = pinyin;
                    }
                    else
                    {
                        userid = $"{pinyin}{index}";
                    }
                    exist = QiYeWeiXinUser.Exist(token.access_token, userid);
                }
                string errmsg;
                var success = QiYeWeiXinUser.Add(token.access_token, userid, student.FullName, student.Mobile, student.Gender.ToString(), new long[] { Startup.DefaultDepartment },out errmsg);

                Console.WriteLine($"add user:{student.FullName}\t{userid}");
                #endregion

                if (success)
                {
                    _context.Add(student);
                    await _context.SaveChangesAsync();
                    //return RedirectToAction(nameof(Index));
                    return RedirectToAction(nameof(QRCode));
                }
                else
                {
                    return RedirectToAction(nameof(Error), new { errmsg });
                }
            }
            return View(student);
        }

10、修改appsettings.json，增加以下内容 

  "CorpId": "wx8da1???????06720",
  "CorpSecret": "sc_LkWSzfKq2Y3x2??????????gMPlVtU5Ecx0zs",
  "DefaultDepartment": "3",