導入不一樣業務數據經過Excel實現

不少公司都用到了老系統移植到新系統，數據天然也須要遷移，這個解決方案之一就是使用Excel文件導入。
結合公司實現，而後簡單寫了個Demo。
（PS:去找朋友本想着花幾十分鐘弄出來炫耀一波，結果花了三四個小時。究其緣由，仍是JS問題，JS之後儘可能放在Html後面，這樣就不用擔憂渲染問題了。）
首先上效果圖:

 

下面介紹下具體實現: 

--將學生和課程數據導入到數據庫
--以stu開頭的是學生，以tea開頭的是老師 後面加個_區分學校
--建立學生老師學校表
--下載導入文件
--根據規則匹配學校，而後決定插入學生表仍是老師表
--顯示導入結果

--學校表
--主鍵Id,學校名稱，學校編號
--學生表
--主鍵Id,學生姓名，學生年級，學生年齡，所在學校
--老師表
--主鍵Id,老師姓名，老師年齡，所在學校

 create table School(
   Id int primary key identity,
   Name nvarchar(50),
   Num nvarchar(30)
  )
  create table Student(
  Id int primary key identity,
  Name nvarchar(50),
  Grade int,
  Age int,
  SchoolNum nvarchar(30)
  )

  create table Teacher(
  Id int primary key identity,
   Name nvarchar(50),
   Age int,
   SchoolNum nvarchar(30)
  )

後臺代碼實現:

using ExportExcelDemo.Core;
using ExportExcelDemo.Core.Helper;
using ExportExcelDemo.Core.Models;
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;

namespace ExportExcelDemo.Web.Controllers
{
    public class HomeController : Controller
    {
        private const string prefix_stu = "stu";
        private const string prefix_tea = "tea";
        public readonly string[] _fileTypes = { prefix_stu, prefix_tea };
        public ActionResult Index()
        {

            SchoolManager schoolManager = new SchoolManager();
            string schoolNum = schoolManager.GetSchoolNum("廊坊師範學院");
            ViewBag.SchoolNum = schoolNum;
            return View();
        }

        [HttpPost()]
        public JsonResult ImportData()
        {
            try
            {
                //文件類型，學校編號
                Tuple<string, string, HttpPostedFileBase> tuble = ValidateFile();
                var file = tuble.Item3;
                var server = HttpContext.Server;
                string tempFileDownloadFolder = server.MapPath("~/Temp/Downloads");
                AppFileHelper.DeleteFilesInFolderIfExists(tempFileDownloadFolder, file.FileName);
                //保存到臨時文件夾
                var tempFilePath = Path.Combine(tempFileDownloadFolder, file.FileName);
                file.SaveAs(tempFilePath);
                string r = string.Empty;
                r = ImportDataInteral(tempFilePath, tuble.Item1, tuble.Item2);
               
                return Json(r);

            }
            catch (Exception ex)
            {
                return Json(ex.Message);
            }
        }

        /// <summary>
        /// 驗證文件是否合規
        /// </summary>
        /// <returns></returns>

        public Tuple<string, string, HttpPostedFileBase> ValidateFile()
        {
            if (Request.Files.Count <= 0 || Request.Files[0] == null)
            {
                throw new Exception("未找到文件");
            }
            var file = Request.Files[0];
            if (file.ContentLength > 1024 * 1024 * 5) //5m
            {
                throw new Exception("文件不能超過5M");
            }
            string[] names = System.IO.Path.GetFileNameWithoutExtension(file.FileName).Split('_');//下劃線分隔
            string msg = "文件名稱錯誤,請根據導入提示來修改文件名稱";
            if (names.Length != 2)
            {
                throw new Exception(msg);
            }
            if (!_fileTypes.Contains(names[0].ToLower()))
            {
                throw new Exception(msg);
            }
            if (string.IsNullOrWhiteSpace(names[1]))
            {
                throw new Exception(msg);
            }
            SchoolManager schoolManager = new SchoolManager();
            string schoolNum = schoolManager.GetSchoolNum(names[1]);
            if (string.IsNullOrEmpty(schoolNum))
            {
                throw new Exception("傳入的學校名不存在");
            }
            return new Tuple<string, string, HttpPostedFileBase>(names[0], names[1],file);

        }

        private string ImportDataInteral(string filePath,string fileDateType,string schoolNum)
        {
            DataSet ds = ExeclHelper.ToDataTable(filePath);//根據文件路徑轉換爲
            DataTable dt = ds.Tables[0];

            int rowsCount = dt.Rows.Count;
            int totalRows = rowsCount;

            StringBuilder successMessage = new StringBuilder();
            StringBuilder errMessage = new StringBuilder();

            Action<DataRow, string> action;
            switch (fileDateType)
            {
                case prefix_stu:
                    action = RowDataProcessForStu;break;
                case prefix_tea:
                    action = RowDataProcessForTea;break;
                default:
                   return  errMessage.Append($"文件名前綴{fileDateType}錯誤").ToString();
            }
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                DataRow dr = dt.Rows[i];
                try
                {
                    action(dr, schoolNum);
                    successMessage.Append($"第{i + 1}行:導入成功\r\n");
                }
                catch (System.Exception ex)
                {
                    var error = $"第{i + 1}行 :{ex.Message}\r\n";
                    errMessage.Append(error);
                    continue;
                }
            }
            return errMessage.ToString() + successMessage.ToString();

        }

        private void RowDataProcessForStu(DataRow dr,string schoolNum)
        {
            Student model = new Student();
            model.Name = dr[0].ToString();
            model.Grade =Convert.ToInt32(dr[1]);
            model.Age=Convert.ToInt32(dr[2]);
            model.SchoolNum = schoolNum;
            StudentManager studentManager = new StudentManager();
            studentManager.InsertStudent(model);

        }

        private void RowDataProcessForTea(DataRow dr, string schoolNum)
        {
            Teacher model = new Teacher();
            model.Name = dr[0].ToString();
            model.Age = Convert.ToInt32(dr[1]);
            model.SchoolNum = schoolNum;
            TeacherManager teacherManager = new TeacherManager();
            teacherManager.InsertTeacher(model);
        }


    }
}

View Code

前臺Html實現:

@{
    ViewBag.Title = "導入數據";
}

<div class="page-title">

    <div class="title-env">
        <h1 class="title"><i class="fa fa-file-text"></i>導入</h1>
    </div>

    <div class="breadcrumb-env">
    </div>

</div>
<div class="row form-leftlabel">
    <div class="col-md-12">
        <div class="row">
            <div class="col-sm-12">
                <div class="panel panel-default">
                    <div class="panel-heading">
                        <h1 class="panel-title">導入說明</h1>
                    </div>
                    <div class="panel panel-default">
                        <div class="panel-body">
                            <form class="form-horizontal form-leftlabel">
                                <div class="form-group">
                                    <label class="col-sm-3 control-label">學生數據：</label>
                                    <div class="col-sm-7">
                                        <label> Execl文件名稱規則：<b>stu_學校名稱</b>,如：stu_學校名稱</label>
                                        <div class="form-group">
                                            <a class="btn btn-default" href="~/Temp/Downloads/stu_學校名稱.xlsx" download="學生信息導入.xlsx">下載學生模板文件<i class="fa-download"></i></a>
                                        </div>
                                    </div>
                                </div>

                                <div class="form-group">
                                    <label class="col-sm-3 control-label">老師數據：</label>
                                    <div class="col-sm-7">
                                        <label> Execl文件名稱規則:<b>tea_學校名稱</b>,如：tea_學校名稱</label>

                                        <div class="form-group">
                                            <a class="btn btn-default" href="~/Temp/Downloads/tea_學校名稱.xlsx" download="老師信息導入.xlsx">下載老師模板文件<i class="fa-download"></i></a>
                                        </div>
                                    </div>
                                </div>

                            </form>
                        </div>
                    </div>
                </div>

                <div class="panel panel-default">
                    <div class="panel-heading">
                        <h1 class="panel-title">導入操做</h1>
                    </div>
                    <div class="panel-body">
                        <form id="DataImportForm" method="POST" action="@Url.Action("ImportData", "Home", new {area = string.Empty})">
                            <div class="col-sm-7">
                                <input type="file" placeholder="選擇模板文件並上傳" name="selectExecl" value="" class="form-control " id="selectMemberTxt"
                                       accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel" />
                            </div>

                            <div class="col-sm-5">
                                <button class="button button-plain2 button-rounded" type="submit" id="btnImport">導入</button>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>
        <div class="row">
            <div class="col-sm-12">
                <div class="panel panel-default">
                    <div class="panel-heading">
                        <h1 class="panel-title">導入結果</h1>
                    </div>
                    <div class="panel-body">

                        <div class="col-sm-7">
                            <textarea id="verifyResult" class="form-control" value="" rows="6"></textarea>
                        </div>

                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<script src="~/Scripts/jquery-3.3.1.min.js"></script>
<script src="~/Scripts/jquery.form.js"></script><!--提交表單-->
<link href="~/Content/jquery-ui/jquery-ui.min.css" rel="stylesheet" />
<script src="~/Content/layer/layer.js"></script><!--layer控件-->
<script src="~/Content/ExportExcel.js"></script>

View Code

ExportExcel.js實現:

var index;
//Appearance/Logo
$('#DataImportForm').ajaxForm({

    beforeSubmit: function (formData, jqForm, options) {

  
        var $fileInput = $('#DataImportForm input[name=selectExecl]');
        var files = $fileInput.get()[0].files;

        if (!files.length) {           
            layer.msg("請選擇execl文件", { icon: 7 });
            return false;
        }

        var file = files[0];

        var type = file.name.substring(file.name.lastIndexOf(".")).toLowerCase();
        if (type != '.xlsx') {         
            layer.msg("請選擇後綴名爲.xlsx格式的excel文件", { icon: 7 });
            return false;
        }

        //File size check
        if (file.size > 1024 * 1024 * 5) //5m
        {          
            layer.msg("文件不能超過5m", { icon: 7 });
            return false;
        }
        $('#verifyResult').val("");
        index =layer.msg("導入中...", {
            icon: 16
            , shade: 0.5,
            time: false //取消自動關閉
        });

        return true;
    },
    success: function (response) {

        $('#verifyResult').val(response);
        layer.close(index);//手動關閉
      
    }
});

 

View Code

碼雲鏈接:  https://gitee.com/shuai7boy/ExportExcelDemo